keyword
MENU ▼
Read by QxMD icon Read
search

Neutron star

keyword
https://read.qxmd.com/read/30705182/populating-the-periodic-table-nucleosynthesis-of-the-elements
#1
REVIEW
Jennifer A Johnson
Elements heavier than helium are produced in the lives and deaths of stars. This Review discusses when and how the process of nucleosynthesis made elements. High-mass stars fuse elements much faster, fuse heavier nuclei, and die more catastrophically than low-mass stars. The explosions of high-mass stars as supernovae release elements into their surroundings. Supernovae can leave behind neutron stars, which may later merge to produce additional heavy elements. Dying low-mass stars throw off their enriched outer layers, leaving behind white dwarfs...
February 1, 2019: Science
https://read.qxmd.com/read/30702719/nd-yvo-4-high-power-master-oscillator-power-amplifier-laser-system-for-second-generation-gravitational-wave-detectors
#2
Fabian Thies, Nina Bode, Patrick Oppermann, Maik Frede, Bastian Schulz, Benno Willke
Ultrastable high-power laser systems are essential components of the long baseline interferometers that detected the first gravitational waves from merging black holes and neutron stars. One way to further increase the sensitivity of current generation gravitational wave detectors (GWDs) is to increase the laser power injected into the interferometers. In this Letter, we describe and characterize a 72 W and a 114 W linearly polarized, single-frequency laser system at a wavelength of 1064 nm, each based on single-pass Nd : YVO 4 power amplifiers...
February 1, 2019: Optics Letters
https://read.qxmd.com/read/30613193/testing-general-relativity-in-cosmology
#3
REVIEW
Mustapha Ishak
We review recent developments and results in testing general relativity (GR) at cosmological scales. The subject has witnessed rapid growth during the last two decades with the aim of addressing the question of cosmic acceleration and the dark energy associated with it. However, with the advent of precision cosmology, it has also become a well-motivated endeavor by itself to test gravitational physics at cosmic scales. We overview cosmological probes of gravity, formalisms and parameterizations for testing deviations from GR at cosmological scales, selected modified gravity (MG) theories, gravitational screening mechanisms, and computer codes developed for these tests...
2019: Living Reviews in Relativity
https://read.qxmd.com/read/30608779/erratum-tidal-deformabilities-and-radii-of-neutron-stars-from-the-observation-of-gw170817-phys-rev-lett-121-091102-2018
#4
Soumi De, Daniel Finstad, James M Lattimer, Duncan A Brown, Edo Berger, Christopher M Biwer
This corrects the article DOI: 10.1103/PhysRevLett.121.091102.
December 21, 2018: Physical Review Letters
https://read.qxmd.com/read/30608750/radio-signals-from-axion-dark-matter-conversion-in-neutron-star-magnetospheres
#5
Anson Hook, Yonatan Kahn, Benjamin R Safdi, Zhiquan Sun
We show that axion dark matter may be detectable through narrow radio lines emitted from neutron stars. Neutron star magnetospheres host both a strong magnetic field and a plasma frequency that increases towards the neutron star surface. As the axions pass through the magnetosphere, they can resonantly convert into radio photons when the plasma frequency matches the axion mass. We solve the axion-photon mixing equations, including a full treatment of the magnetized plasma, to obtain the conversion probability...
December 14, 2018: Physical Review Letters
https://read.qxmd.com/read/30576173/search-for-subsolar-mass-ultracompact-binaries-in-advanced-ligo-s-first-observing-run
#6
B P Abbott, R Abbott, T D Abbott, F Acernese, K Ackley, C Adams, T Adams, P Addesso, R X Adhikari, V B Adya, C Affeldt, B Agarwal, M Agathos, K Agatsuma, N Aggarwal, O D Aguiar, L Aiello, A Ain, P Ajith, B Allen, G Allen, A Allocca, M A Aloy, P A Altin, A Amato, A Ananyeva, S B Anderson, W G Anderson, S V Angelova, S Antier, S Appert, K Arai, M C Araya, J S Areeda, M Arène, N Arnaud, K G Arun, S Ascenzi, G Ashton, M Ast, S M Aston, P Astone, D V Atallah, F Aubin, P Aufmuth, C Aulbert, K AultONeal, C Austin, A Avila-Alvarez, S Babak, P Bacon, F Badaracco, M K M Bader, S Bae, P T Baker, F Baldaccini, G Ballardin, S W Ballmer, S Banagiri, J C Barayoga, S E Barclay, B C Barish, D Barker, K Barkett, S Barnum, F Barone, B Barr, L Barsotti, M Barsuglia, D Barta, J Bartlett, I Bartos, R Bassiri, A Basti, J C Batch, M Bawaj, J C Bayley, M Bazzan, B Bécsy, C Beer, M Bejger, I Belahcene, A S Bell, D Beniwal, M Bensch, B K Berger, G Bergmann, S Bernuzzi, J J Bero, C P L Berry, D Bersanetti, A Bertolini, J Betzwieser, R Bhandare, I A Bilenko, S A Bilgili, G Billingsley, C R Billman, J Birch, R Birney, O Birnholtz, S Biscans, S Biscoveanu, A Bisht, M Bitossi, M A Bizouard, J K Blackburn, J Blackman, C D Blair, D G Blair, R M Blair, S Bloemen, O Bock, N Bode, M Boer, Y Boetzel, G Bogaert, A Bohe, F Bondu, E Bonilla, R Bonnand, P Booker, B A Boom, C D Booth, R Bork, V Boschi, S Bose, K Bossie, V Bossilkov, J Bosveld, Y Bouffanais, A Bozzi, C Bradaschia, P R Brady, A Bramley, M Branchesi, J E Brau, T Briant, F Brighenti, A Brillet, M Brinkmann, V Brisson, P Brockill, A F Brooks, D D Brown, S Brunett, C C Buchanan, A Buikema, T Bulik, H J Bulten, A Buonanno, D Buskulic, C Buy, R L Byer, M Cabero, L Cadonati, G Cagnoli, C Cahillane, J Calderón Bustillo, T A Callister, E Calloni, J B Camp, M Canepa, P Canizares, K C Cannon, H Cao, J Cao, C D Capano, E Capocasa, F Carbognani, S Caride, M F Carney, J Casanueva Diaz, C Casentini, S Caudill, M Cavaglià, F Cavalier, R Cavalieri, G Cella, C B Cepeda, P Cerdá-Durán, G Cerretani, E Cesarini, O Chaibi, S J Chamberlin, M Chan, S Chao, P Charlton, E Chase, E Chassande-Mottin, D Chatterjee, B D Cheeseboro, H Y Chen, X Chen, Y Chen, H-P Cheng, H Y Chia, A Chincarini, A Chiummo, T Chmiel, H S Cho, M Cho, J H Chow, N Christensen, Q Chu, A J K Chua, S Chua, K W Chung, S Chung, G Ciani, A A Ciobanu, R Ciolfi, F Cipriano, C E Cirelli, A Cirone, F Clara, J A Clark, P Clearwater, F Cleva, C Cocchieri, E Coccia, P-F Cohadon, D Cohen, A Colla, C G Collette, C Collins, L R Cominsky, M Constancio, L Conti, S J Cooper, P Corban, T R Corbitt, I Cordero-Carrión, K R Corley, N Cornish, A Corsi, S Cortese, C A Costa, R Cotesta, M W Coughlin, S B Coughlin, J-P Coulon, S T Countryman, P Couvares, P B Covas, E E Cowan, D M Coward, M J Cowart, D C Coyne, R Coyne, J D E Creighton, T D Creighton, J Cripe, S G Crowder, T J Cullen, A Cumming, L Cunningham, E Cuoco, T Dal Canton, G Dálya, S L Danilishin, S D'Antonio, K Danzmann, A Dasgupta, C F Da Silva Costa, V Dattilo, I Dave, M Davier, D Davis, E J Daw, B Day, D DeBra, M Deenadayalan, J Degallaix, M De Laurentis, S Deléglise, W Del Pozzo, N Demos, T Denker, T Dent, R De Pietri, J Derby, V Dergachev, R De Rosa, C De Rossi, R DeSalvo, A S Deutsch, O de Varona, S Dhurandhar, M C Díaz, L Di Fiore, M Di Giovanni, T Di Girolamo, A Di Lieto, B Ding, S Di Pace, I Di Palma, F Di Renzo, A Dmitriev, Z Doctor, V Dolique, F Donovan, K L Dooley, S Doravari, I Dorrington, M Dovale Álvarez, T P Downes, M Drago, C Dreissigacker, J C Driggers, Z Du, P Dupej, S E Dwyer, P J Easter, T B Edo, M C Edwards, A Effler, H-B Eggenstein, P Ehrens, J Eichholz, S S Eikenberry, M Eisenmann, R A Eisenstein, R C Essick, H Estelles, D Estevez, Z B Etienne, T Etzel, M Evans, T M Evans, V Fafone, H Fair, S Fairhurst, X Fan, S Farinon, B Farr, W M Farr, E J Fauchon-Jones, M Favata, M Fays, C Fee, H Fehrmann, J Feicht, M M Fejer, F Feng, A Fernandez-Galiana, I Ferrante, E C Ferreira, F Ferrini, F Fidecaro, I Fiori, D Fiorucci, M Fishbach, R P Fisher, J M Fishner, M Fitz-Axen, R Flaminio, M Fletcher, H Fong, J A Font, P W F Forsyth, S S Forsyth, J-D Fournier, S Frasca, F Frasconi, Z Frei, A Freise, R Frey, V Frey, P Fritschel, V V Frolov, P Fulda, M Fyffe, H A Gabbard, B U Gadre, S M Gaebel, J R Gair, L Gammaitoni, M R Ganija, S G Gaonkar, A Garcia, C García-Quirós, F Garufi, B Gateley, S Gaudio, G Gaur, V Gayathri, G Gemme, E Genin, A Gennai, D George, J George, L Gergely, V Germain, S Ghonge, Abhirup Ghosh, Archisman Ghosh, S Ghosh, B Giacomazzo, J A Giaime, K D Giardina, A Giazotto, K Gill, G Giordano, L Glover, E Goetz, R Goetz, B Goncharov, G González, J M Gonzalez Castro, A Gopakumar, M L Gorodetsky, S E Gossan, M Gosselin, R Gouaty, A Grado, C Graef, M Granata, A Grant, S Gras, C Gray, G Greco, A C Green, R Green, E M Gretarsson, P Groot, H Grote, S Grunewald, P Gruning, G M Guidi, H K Gulati, X Guo, A Gupta, M K Gupta, K E Gushwa, E K Gustafson, R Gustafson, O Halim, B R Hall, E D Hall, E Z Hamilton, H F Hamilton, G Hammond, M Haney, M M Hanke, J Hanks, C Hanna, O A Hannuksela, J Hanson, T Hardwick, J Harms, G M Harry, I W Harry, M J Hart, C-J Haster, K Haughian, J Healy, A Heidmann, M C Heintze, H Heitmann, P Hello, G Hemming, M Hendry, I S Heng, J Hennig, A W Heptonstall, F J Hernandez, M Heurs, S Hild, T Hinderer, D Hoak, S Hochheim, D Hofman, N A Holland, K Holt, D E Holz, P Hopkins, C Horst, J Hough, E A Houston, E J Howell, A Hreibi, E A Huerta, D Huet, B Hughey, M Hulko, S Husa, S H Huttner, T Huynh-Dinh, A Iess, N Indik, C Ingram, R Inta, G Intini, H N Isa, J-M Isac, M Isi, B R Iyer, K Izumi, T Jacqmin, K Jani, P Jaranowski, D S Johnson, W W Johnson, D I Jones, R Jones, R J G Jonker, L Ju, J Junker, C V Kalaghatgi, V Kalogera, B Kamai, S Kandhasamy, G Kang, J B Kanner, S J Kapadia, S Karki, K S Karvinen, M Kasprzack, M Katolik, S Katsanevas, E Katsavounidis, W Katzman, S Kaufer, K Kawabe, N V Keerthana, F Kéfélian, D Keitel, A J Kemball, R Kennedy, J S Key, F Y Khalili, B Khamesra, H Khan, I Khan, S Khan, Z Khan, E A Khazanov, N Kijbunchoo, Chunglee Kim, J C Kim, K Kim, W Kim, W S Kim, Y-M Kim, E J King, P J King, M Kinley-Hanlon, R Kirchhoff, J S Kissel, L Kleybolte, S Klimenko, T D Knowles, P Koch, S M Koehlenbeck, S Koley, V Kondrashov, A Kontos, M Korobko, W Z Korth, I Kowalska, D B Kozak, C Krämer, V Kringel, A Królak, G Kuehn, P Kumar, R Kumar, S Kumar, L Kuo, A Kutynia, S Kwang, B D Lackey, K H Lai, M Landry, R N Lang, J Lange, B Lantz, R K Lanza, A Lartaux-Vollard, P D Lasky, M Laxen, A Lazzarini, C Lazzaro, P Leaci, S Leavey, C H Lee, H K Lee, H M Lee, H W Lee, K Lee, J Lehmann, A Lenon, M Leonardi, N Leroy, N Letendre, Y Levin, J Li, T G F Li, X Li, S D Linker, T B Littenberg, J Liu, X Liu, R K L Lo, N A Lockerbie, L T London, A Longo, M Lorenzini, V Loriette, M Lormand, G Losurdo, J D Lough, G Lovelace, H Lück, D Lumaca, A P Lundgren, R Lynch, Y Ma, R Macas, S Macfoy, B Machenschalk, M MacInnis, D M Macleod, I Magaña Hernandez, F Magaña-Sandoval, L Magaña Zertuche, R M Magee, E Majorana, I Maksimovic, N Man, V Mandic, V Mangano, G L Mansell, M Manske, M Mantovani, F Marchesoni, F Marion, S Márka, Z Márka, C Markakis, A S Markosyan, A Markowitz, E Maros, A Marquina, F Martelli, L Martellini, I W Martin, R M Martin, D V Martynov, K Mason, E Massera, A Masserot, T J Massinger, M Masso-Reid, S Mastrogiovanni, A Matas, F Matichard, L Matone, N Mavalvala, N Mazumder, J J McCann, R McCarthy, D E McClelland, S McCormick, L McCuller, S C McGuire, J McIver, D J McManus, T McRae, S T McWilliams, D Meacher, G D Meadors, M Mehmet, J Meidam, E Mejuto-Villa, A Melatos, G Mendell, D Mendoza-Gandara, R A Mercer, L Mereni, E L Merilh, M Merzougui, S Meshkov, C Messenger, C Messick, R Metzdorff, P M Meyers, H Miao, C Michel, H Middleton, E E Mikhailov, L Milano, A L Miller, A Miller, B B Miller, J Miller, M Millhouse, J Mills, M C Milovich-Goff, O Minazzoli, Y Minenkov, J Ming, C Mishra, S Mitra, V P Mitrofanov, G Mitselmakher, R Mittleman, D Moffa, K Mogushi, M Mohan, S R P Mohapatra, M Montani, C J Moore, D Moraru, G Moreno, S Morisaki, B Mours, C M Mow-Lowry, G Mueller, A W Muir, Arunava Mukherjee, D Mukherjee, S Mukherjee, N Mukund, A Mullavey, J Munch, E A Muñiz, M Muratore, P G Murray, A Nagar, K Napier, I Nardecchia, L Naticchioni, R K Nayak, J Neilson, G Nelemans, T J N Nelson, M Nery, A Neunzert, L Nevin, J M Newport, K Y Ng, S Ng, P Nguyen, T T Nguyen, D Nichols, A B Nielsen, S Nissanke, A Nitz, F Nocera, D Nolting, C North, L K Nuttall, M Obergaulinger, J Oberling, B D O'Brien, G D O'Dea, G H Ogin, J J Oh, S H Oh, F Ohme, H Ohta, M A Okada, M Oliver, P Oppermann, Richard J Oram, B O'Reilly, R Ormiston, L F Ortega, R O'Shaughnessy, S Ossokine, D J Ottaway, H Overmier, B J Owen, A E Pace, G Pagano, J Page, M A Page, A Pai, S A Pai, J R Palamos, O Palashov, C Palomba, A Pal-Singh, Howard Pan, Huang-Wei Pan, B Pang, P T H Pang, C Pankow, F Pannarale, B C Pant, F Paoletti, A Paoli, M A Papa, A Parida, W Parker, D Pascucci, A Pasqualetti, R Passaquieti, D Passuello, M Patil, B Patricelli, B L Pearlstone, C Pedersen, M Pedraza, R Pedurand, L Pekowsky, A Pele, S Penn, C J Perez, A Perreca, L M Perri, H P Pfeiffer, M Phelps, K S Phukon, O J Piccinni, M Pichot, F Piergiovanni, V Pierro, G Pillant, L Pinard, I M Pinto, M Pirello, M Pitkin, R Poggiani, P Popolizio, E K Porter, L Possenti, A Post, J Powell, J Prasad, J W W Pratt, G Pratten, V Predoi, T Prestegard, M Principe, S Privitera, G A Prodi, L G Prokhorov, O Puncken, M Punturo, P Puppo, M Pürrer, H Qi, V Quetschke, E A Quintero, R Quitzow-James, F J Raab, D S Rabeling, H Radkins, P Raffai, S Raja, C Rajan, B Rajbhandari, M Rakhmanov, K E Ramirez, A Ramos-Buades, Javed Rana, P Rapagnani, V Raymond, M Razzano, J Read, T Regimbau, L Rei, S Reid, D H Reitze, W Ren, F Ricci, P M Ricker, K Riles, M Rizzo, N A Robertson, R Robie, F Robinet, T Robson, A Rocchi, L Rolland, J G Rollins, V J Roma, R Romano, C L Romel, J H Romie, D Rosińska, M P Ross, S Rowan, A Rüdiger, P Ruggi, G Rutins, K Ryan, S Sachdev, T Sadecki, M Sakellariadou, L Salconi, M Saleem, F Salemi, A Samajdar, L Sammut, L M Sampson, E J Sanchez, L E Sanchez, N Sanchis-Gual, V Sandberg, J R Sanders, N Sarin, B Sassolas, B S Sathyaprakash, P R Saulson, O Sauter, R L Savage, A Sawadsky, P Schale, M Scheel, J Scheuer, P Schmidt, R Schnabel, R M S Schofield, A Schönbeck, E Schreiber, D Schuette, B W Schulte, B F Schutz, S G Schwalbe, J Scott, S M Scott, E Seidel, D Sellers, A S Sengupta, D Sentenac, V Sequino, A Sergeev, Y Setyawati, D A Shaddock, T J Shaffer, A A Shah, M S Shahriar, M B Shaner, L Shao, B Shapiro, P Shawhan, H Shen, D H Shoemaker, D M Shoemaker, K Siellez, X Siemens, M Sieniawska, D Sigg, A D Silva, L P Singer, A Singh, A Singhal, A M Sintes, B J J Slagmolen, T J Slaven-Blair, B Smith, J R Smith, R J E Smith, S Somala, E J Son, B Sorazu, F Sorrentino, T Souradeep, A P Spencer, A K Srivastava, K Staats, M Steinke, J Steinlechner, S Steinlechner, D Steinmeyer, B Steltner, S P Stevenson, D Stocks, R Stone, D J Stops, K A Strain, G Stratta, S E Strigin, A Strunk, R Sturani, A L Stuver, T Z Summerscales, L Sun, S Sunil, J Suresh, P J Sutton, B L Swinkels, M J Szczepańczyk, M Tacca, S C Tait, C Talbot, D Talukder, D B Tanner, M Tápai, A Taracchini, J D Tasson, J A Taylor, R Taylor, S V Tewari, T Theeg, F Thies, E G Thomas, M Thomas, P Thomas, K A Thorne, E Thrane, S Tiwari, V Tiwari, K V Tokmakov, K Toland, M Tonelli, Z Tornasi, A Torres-Forné, C I Torrie, D Töyrä, F Travasso, G Traylor, J Trinastic, M C Tringali, L Trozzo, K W Tsang, M Tse, R Tso, D Tsuna, L Tsukada, D Tuyenbayev, K Ueno, D Ugolini, A L Urban, S A Usman, H Vahlbruch, G Vajente, G Valdes, N van Bakel, M van Beuzekom, J F J van den Brand, C Van Den Broeck, D C Vander-Hyde, L van der Schaaf, J V van Heijningen, A A van Veggel, M Vardaro, V Varma, S Vass, M Vasúth, A Vecchio, G Vedovato, J Veitch, P J Veitch, K Venkateswara, G Venugopalan, D Verkindt, F Vetrano, A Viceré, A D Viets, S Vinciguerra, D J Vine, J-Y Vinet, S Vitale, T Vo, H Vocca, C Vorvick, S P Vyatchanin, A R Wade, L E Wade, M Wade, R Walet, M Walker, L Wallace, S Walsh, G Wang, H Wang, J Z Wang, W H Wang, Y F Wang, R L Ward, J Warner, M Was, J Watchi, B Weaver, L-W Wei, M Weinert, A J Weinstein, R Weiss, F Wellmann, L Wen, E K Wessel, P Weßels, J Westerweck, K Wette, J T Whelan, B F Whiting, C Whittle, D Wilken, D Williams, R D Williams, A R Williamson, J L Willis, B Willke, M H Wimmer, W Winkler, C C Wipf, H Wittel, G Woan, J Woehler, J K Wofford, W K Wong, J Worden, J L Wright, D S Wu, D M Wysocki, S Xiao, W Yam, H Yamamoto, C C Yancey, L Yang, M J Yap, M Yazback, Hang Yu, Haocun Yu, M Yvert, A Zadrożny, M Zanolin, T Zelenova, J-P Zendri, M Zevin, J Zhang, L Zhang, M Zhang, T Zhang, Y-H Zhang, C Zhao, M Zhou, Z Zhou, S J Zhu, X J Zhu, M E Zucker, J Zweizig, S Shandera
We present the first Advanced LIGO and Advanced Virgo search for ultracompact binary systems with component masses between 0.2  M_{⊙}-1.0  M_{⊙} using data taken between September 12, 2015 and January 19, 2016. We find no viable gravitational wave candidates. Our null result constrains the coalescence rate of monochromatic (delta function) distributions of nonspinning (0.2  M_{⊙}, 0.2  M_{⊙}) ultracompact binaries to be less than 1.0×10^{6}  Gpc^{-3}  yr^{-1} and the coalescence rate of a similar distribution of (1...
December 7, 2018: Physical Review Letters
https://read.qxmd.com/read/30547636/gravitational-rainbows-ligo-and-dark-energy-at-its-cutoff
#7
Claudia de Rham, Scott Melville
The recent direct detection of gravitational waves from a neutron star merger with optical counterpart has been used to severely constrain models of dark energy that typically predict a modification of the gravitational wave speed. However, the energy scales observed at LIGO, and the particular frequency of the neutron star event, lie very close to the strong coupling scale or cutoff associated with many dark energy models. While it is true that at very low energies one expects gravitational waves to travel at a speed different than light in these models, the same is no longer necessarily true as one reaches energy scales close to the cutoff...
November 30, 2018: Physical Review Letters
https://read.qxmd.com/read/30547602/nonprimordial-solar-mass-black-holes
#8
Chris Kouvaris, Peter Tinyakov, Michel H G Tytgat
We propose a mechanism that can convert a sizable fraction of neutron stars into black holes with mass ∼1  M_{⊙}, too light to be produced via stellar evolution. We show that asymmetric fermionic dark matter of mass on the teraelectron volt scale, with attractive self-interaction within the range that alleviates the problems of collisionless cold dark matter, can accumulate in a neutron star and collapse, forming a black hole that converts the rest of the star to a solar mass black hole. We estimate the fraction of neutron stars that can become black holes without contradicting neutron star observations...
November 30, 2018: Physical Review Letters
https://read.qxmd.com/read/30524193/tidal-love-numbers-of-neutron-stars-in-f-r-gravity
#9
Stoytcho S Yazadjiev, Daniela D Doneva, Kostas D Kokkotas
The recent detection of gravitational waves from a neutron star merger was a significant step towards constraining the nuclear matter equation of state by using the tidal Love numbers (TLNs) of the merging neutron stars. Measuring or constraining the neutron star TLNs allows us in principle to exclude or constraint many equations of state. This approach, however, has the drawback that many modified theories of gravity could produce deviations from General Relativity similar to the deviations coming from the uncertainties in the equation of state...
2018: European Physical Journal. C, Particles and Fields
https://read.qxmd.com/read/30462612/stochastic-gravitational-wave-backgrounds
#10
Nelson Christensen
A stochastic background of gravitational waves could be created by the superposition of a large number of independent sources. The physical processes occurring at the earliest moments of the universe certainly created a stochastic background that exists, at some level, today. This is analogous to the cosmic microwave background, which is an electromagnetic record of the early universe. The recent observations of gravitational waves by the Advanced LIGO and Advanced Virgo detectors imply that there is also a stochastic background that has been created by binary black hole and binary neutron star mergers over the history of the universe...
November 21, 2018: Reports on Progress in Physics
https://read.qxmd.com/read/30405228/universal-prethermal-dynamics-of-bose-gases-quenched-to-unitarity
#11
Christoph Eigen, Jake A P Glidden, Raphael Lopes, Eric A Cornell, Robert P Smith, Zoran Hadzibabic
Understanding strongly correlated phases of matter, such as the quark-gluon plasma and neutron stars, and in particular the dynamics of such systems, for example, following a Hamiltonian quench (a sudden change in some Hamiltonian parameter, such as the strength of interparticle interactions) is a fundamental challenge in modern physics. Ultracold atomic gases are excellent quantum simulators for these problems, owing to their tunable interparticle interactions and experimentally resolvable intrinsic timescales...
November 2018: Nature
https://read.qxmd.com/read/30387654/gw170817-measurements-of-neutron-star-radii-and-equation-of-state
#12
B P Abbott, R Abbott, T D Abbott, F Acernese, K Ackley, C Adams, T Adams, P Addesso, R X Adhikari, V B Adya, C Affeldt, B Agarwal, M Agathos, K Agatsuma, N Aggarwal, O D Aguiar, L Aiello, A Ain, P Ajith, B Allen, G Allen, A Allocca, M A Aloy, P A Altin, A Amato, A Ananyeva, S B Anderson, W G Anderson, S V Angelova, S Antier, S Appert, K Arai, M C Araya, J S Areeda, M Arène, N Arnaud, K G Arun, S Ascenzi, G Ashton, M Ast, S M Aston, P Astone, D V Atallah, F Aubin, P Aufmuth, C Aulbert, K AultONeal, C Austin, A Avila-Alvarez, S Babak, P Bacon, F Badaracco, M K M Bader, S Bae, P T Baker, F Baldaccini, G Ballardin, S W Ballmer, S Banagiri, J C Barayoga, S E Barclay, B C Barish, D Barker, K Barkett, S Barnum, F Barone, B Barr, L Barsotti, M Barsuglia, D Barta, J Bartlett, I Bartos, R Bassiri, A Basti, J C Batch, M Bawaj, J C Bayley, M Bazzan, B Bécsy, C Beer, M Bejger, I Belahcene, A S Bell, D Beniwal, M Bensch, B K Berger, G Bergmann, S Bernuzzi, J J Bero, C P L Berry, D Bersanetti, A Bertolini, J Betzwieser, R Bhandare, I A Bilenko, S A Bilgili, G Billingsley, C R Billman, J Birch, R Birney, O Birnholtz, S Biscans, S Biscoveanu, A Bisht, M Bitossi, M A Bizouard, J K Blackburn, J Blackman, C D Blair, D G Blair, R M Blair, S Bloemen, O Bock, N Bode, M Boer, Y Boetzel, G Bogaert, A Bohe, F Bondu, E Bonilla, R Bonnand, P Booker, B A Boom, C D Booth, R Bork, V Boschi, S Bose, K Bossie, V Bossilkov, J Bosveld, Y Bouffanais, A Bozzi, C Bradaschia, P R Brady, A Bramley, M Branchesi, J E Brau, T Briant, F Brighenti, A Brillet, M Brinkmann, V Brisson, P Brockill, A F Brooks, D D Brown, S Brunett, C C Buchanan, A Buikema, T Bulik, H J Bulten, A Buonanno, D Buskulic, C Buy, R L Byer, M Cabero, L Cadonati, G Cagnoli, C Cahillane, J Calderón Bustillo, T A Callister, E Calloni, J B Camp, M Canepa, P Canizares, K C Cannon, H Cao, J Cao, C D Capano, E Capocasa, F Carbognani, S Caride, M F Carney, G Carullo, J Casanueva Diaz, C Casentini, S Caudill, M Cavaglià, F Cavalier, R Cavalieri, G Cella, C B Cepeda, P Cerdá-Durán, G Cerretani, E Cesarini, O Chaibi, S J Chamberlin, M Chan, S Chao, P Charlton, E Chase, E Chassande-Mottin, D Chatterjee, K Chatziioannou, B D Cheeseboro, H Y Chen, X Chen, Y Chen, H-P Cheng, H Y Chia, A Chincarini, A Chiummo, T Chmiel, H S Cho, M Cho, J H Chow, N Christensen, Q Chu, A J K Chua, S Chua, K W Chung, S Chung, G Ciani, A A Ciobanu, R Ciolfi, F Cipriano, C E Cirelli, A Cirone, F Clara, J A Clark, P Clearwater, F Cleva, C Cocchieri, E Coccia, P-F Cohadon, D Cohen, A Colla, C G Collette, C Collins, L R Cominsky, M Constancio, L Conti, S J Cooper, P Corban, T R Corbitt, I Cordero-Carrión, K R Corley, N Cornish, A Corsi, S Cortese, C A Costa, R Cotesta, M W Coughlin, S B Coughlin, J-P Coulon, S T Countryman, P Couvares, P B Covas, E E Cowan, D M Coward, M J Cowart, D C Coyne, R Coyne, J D E Creighton, T D Creighton, J Cripe, S G Crowder, T J Cullen, A Cumming, L Cunningham, E Cuoco, T Dal Canton, G Dálya, S L Danilishin, S D'Antonio, K Danzmann, A Dasgupta, C F Da Silva Costa, V Dattilo, I Dave, M Davier, D Davis, E J Daw, B Day, D DeBra, M Deenadayalan, J Degallaix, M De Laurentis, S Deléglise, W Del Pozzo, N Demos, T Denker, T Dent, R De Pietri, J Derby, V Dergachev, R De Rosa, C De Rossi, R DeSalvo, O de Varona, S Dhurandhar, M C Díaz, T Dietrich, L Di Fiore, M Di Giovanni, T Di Girolamo, A Di Lieto, B Ding, S Di Pace, I Di Palma, F Di Renzo, A Dmitriev, Z Doctor, V Dolique, F Donovan, K L Dooley, S Doravari, I Dorrington, M Dovale Álvarez, T P Downes, M Drago, C Dreissigacker, J C Driggers, Z Du, P Dupej, S E Dwyer, P J Easter, T B Edo, M C Edwards, A Effler, H-B Eggenstein, P Ehrens, J Eichholz, S S Eikenberry, M Eisenmann, R A Eisenstein, R C Essick, H Estelles, D Estevez, Z B Etienne, T Etzel, M Evans, T M Evans, V Fafone, H Fair, S Fairhurst, X Fan, S Farinon, B Farr, W M Farr, E J Fauchon-Jones, M Favata, M Fays, C Fee, H Fehrmann, J Feicht, M M Fejer, F Feng, A Fernandez-Galiana, I Ferrante, E C Ferreira, F Ferrini, F Fidecaro, I Fiori, D Fiorucci, M Fishbach, R P Fisher, J M Fishner, M Fitz-Axen, R Flaminio, M Fletcher, H Fong, J A Font, P W F Forsyth, S S Forsyth, J-D Fournier, S Frasca, F Frasconi, Z Frei, A Freise, R Frey, V Frey, P Fritschel, V V Frolov, P Fulda, M Fyffe, H A Gabbard, B U Gadre, S M Gaebel, J R Gair, L Gammaitoni, M R Ganija, S G Gaonkar, A Garcia, C García-Quirós, F Garufi, B Gateley, S Gaudio, G Gaur, V Gayathri, G Gemme, E Genin, A Gennai, D George, J George, L Gergely, V Germain, S Ghonge, Abhirup Ghosh, Archisman Ghosh, S Ghosh, B Giacomazzo, J A Giaime, K D Giardina, A Giazotto, K Gill, G Giordano, L Glover, E Goetz, R Goetz, B Goncharov, G González, J M Gonzalez Castro, A Gopakumar, M L Gorodetsky, S E Gossan, M Gosselin, R Gouaty, A Grado, C Graef, M Granata, A Grant, S Gras, C Gray, G Greco, A C Green, R Green, E M Gretarsson, P Groot, H Grote, S Grunewald, P Gruning, G M Guidi, H K Gulati, X Guo, A Gupta, M K Gupta, K E Gushwa, E K Gustafson, R Gustafson, O Halim, B R Hall, E D Hall, E Z Hamilton, H F Hamilton, G Hammond, M Haney, M M Hanke, J Hanks, C Hanna, M D Hannam, O A Hannuksela, J Hanson, T Hardwick, J Harms, G M Harry, I W Harry, M J Hart, C-J Haster, K Haughian, J Healy, A Heidmann, M C Heintze, H Heitmann, P Hello, G Hemming, M Hendry, I S Heng, J Hennig, A W Heptonstall, F J Hernandez, M Heurs, S Hild, T Hinderer, W C G Ho, D Hoak, S Hochheim, D Hofman, N A Holland, K Holt, D E Holz, P Hopkins, C Horst, J Hough, E A Houston, E J Howell, A Hreibi, E A Huerta, D Huet, B Hughey, M Hulko, S Husa, S H Huttner, T Huynh-Dinh, A Iess, N Indik, C Ingram, R Inta, G Intini, B S Irwin, H N Isa, J-M Isac, M Isi, B R Iyer, K Izumi, T Jacqmin, K Jani, P Jaranowski, D S Johnson, W W Johnson, D I Jones, R Jones, R J G Jonker, L Ju, J Junker, C V Kalaghatgi, V Kalogera, B Kamai, S Kandhasamy, G Kang, J B Kanner, S J Kapadia, S Karki, K S Karvinen, M Kasprzack, M Katolik, S Katsanevas, E Katsavounidis, W Katzman, S Kaufer, K Kawabe, N V Keerthana, F Kéfélian, D Keitel, A J Kemball, R Kennedy, J S Key, F Y Khalili, B Khamesra, H Khan, I Khan, S Khan, Z Khan, E A Khazanov, N Kijbunchoo, Chunglee Kim, J C Kim, K Kim, W Kim, W S Kim, Y-M Kim, E J King, P J King, M Kinley-Hanlon, R Kirchhoff, J S Kissel, L Kleybolte, S Klimenko, T D Knowles, P Koch, S M Koehlenbeck, S Koley, V Kondrashov, A Kontos, M Korobko, W Z Korth, I Kowalska, D B Kozak, C Krämer, V Kringel, B Krishnan, A Królak, G Kuehn, P Kumar, R Kumar, S Kumar, L Kuo, A Kutynia, S Kwang, B D Lackey, K H Lai, M Landry, P Landry, R N Lang, J Lange, B Lantz, R K Lanza, A Lartaux-Vollard, P D Lasky, M Laxen, A Lazzarini, C Lazzaro, P Leaci, S Leavey, C H Lee, H K Lee, H M Lee, H W Lee, K Lee, J Lehmann, A Lenon, M Leonardi, N Leroy, N Letendre, Y Levin, J Li, T G F Li, X Li, S D Linker, T B Littenberg, J Liu, X Liu, R K L Lo, N A Lockerbie, L T London, A Longo, M Lorenzini, V Loriette, M Lormand, G Losurdo, J D Lough, C O Lousto, G Lovelace, H Lück, D Lumaca, A P Lundgren, R Lynch, Y Ma, R Macas, S Macfoy, B Machenschalk, M MacInnis, D M Macleod, I Magaña Hernandez, F Magaña-Sandoval, L Magaña Zertuche, R M Magee, E Majorana, I Maksimovic, N Man, V Mandic, V Mangano, G L Mansell, M Manske, M Mantovani, F Marchesoni, F Marion, S Márka, Z Márka, C Markakis, A S Markosyan, A Markowitz, E Maros, A Marquina, F Martelli, L Martellini, I W Martin, R M Martin, D V Martynov, K Mason, E Massera, A Masserot, T J Massinger, M Masso-Reid, S Mastrogiovanni, A Matas, F Matichard, L Matone, N Mavalvala, N Mazumder, J J McCann, R McCarthy, D E McClelland, S McCormick, L McCuller, S C McGuire, J McIver, D J McManus, T McRae, S T McWilliams, D Meacher, G D Meadors, M Mehmet, J Meidam, E Mejuto-Villa, A Melatos, G Mendell, D Mendoza-Gandara, R A Mercer, L Mereni, E L Merilh, M Merzougui, S Meshkov, C Messenger, C Messick, R Metzdorff, P M Meyers, H Miao, C Michel, H Middleton, E E Mikhailov, L Milano, A L Miller, A Miller, B B Miller, J Miller, M Millhouse, J Mills, M C Milovich-Goff, O Minazzoli, Y Minenkov, J Ming, C Mishra, S Mitra, V P Mitrofanov, G Mitselmakher, R Mittleman, D Moffa, K Mogushi, M Mohan, S R P Mohapatra, M Montani, C J Moore, D Moraru, G Moreno, S Morisaki, B Mours, C M Mow-Lowry, G Mueller, A W Muir, Arunava Mukherjee, D Mukherjee, S Mukherjee, N Mukund, A Mullavey, J Munch, E A Muñiz, M Muratore, P G Murray, A Nagar, K Napier, I Nardecchia, L Naticchioni, R K Nayak, J Neilson, G Nelemans, T J N Nelson, M Nery, A Neunzert, L Nevin, J M Newport, K Y Ng, S Ng, P Nguyen, T T Nguyen, D Nichols, A B Nielsen, S Nissanke, A Nitz, F Nocera, D Nolting, C North, L K Nuttall, M Obergaulinger, J Oberling, B D O'Brien, G D O'Dea, G H Ogin, J J Oh, S H Oh, F Ohme, H Ohta, M A Okada, M Oliver, P Oppermann, Richard J Oram, B O'Reilly, R Ormiston, L F Ortega, R O'Shaughnessy, S Ossokine, D J Ottaway, H Overmier, B J Owen, A E Pace, G Pagano, J Page, M A Page, A Pai, S A Pai, J R Palamos, O Palashov, C Palomba, A Pal-Singh, Howard Pan, Huang-Wei Pan, B Pang, P T H Pang, C Pankow, F Pannarale, B C Pant, F Paoletti, A Paoli, M A Papa, A Parida, W Parker, D Pascucci, A Pasqualetti, R Passaquieti, D Passuello, M Patil, B Patricelli, B L Pearlstone, C Pedersen, M Pedraza, R Pedurand, L Pekowsky, A Pele, S Penn, A Perego, C J Perez, A Perreca, L M Perri, H P Pfeiffer, M Phelps, K S Phukon, O J Piccinni, M Pichot, F Piergiovanni, V Pierro, G Pillant, L Pinard, I M Pinto, M Pirello, M Pitkin, R Poggiani, P Popolizio, E K Porter, L Possenti, A Post, J Powell, J Prasad, J W W Pratt, G Pratten, V Predoi, T Prestegard, M Principe, S Privitera, G A Prodi, L G Prokhorov, O Puncken, M Punturo, P Puppo, M Pürrer, H Qi, V Quetschke, E A Quintero, R Quitzow-James, F J Raab, D S Rabeling, H Radkins, P Raffai, S Raja, C Rajan, B Rajbhandari, M Rakhmanov, K E Ramirez, A Ramos-Buades, Javed Rana, P Rapagnani, V Raymond, M Razzano, J Read, T Regimbau, L Rei, S Reid, D H Reitze, W Ren, F Ricci, P M Ricker, G M Riemenschneider, K Riles, M Rizzo, N A Robertson, R Robie, F Robinet, T Robson, A Rocchi, L Rolland, J G Rollins, V J Roma, R Romano, C L Romel, J H Romie, D Rosińska, M P Ross, S Rowan, A Rüdiger, P Ruggi, G Rutins, K Ryan, S Sachdev, T Sadecki, M Sakellariadou, L Salconi, M Saleem, F Salemi, A Samajdar, L Sammut, L M Sampson, E J Sanchez, L E Sanchez, N Sanchis-Gual, V Sandberg, J R Sanders, N Sarin, B Sassolas, B S Sathyaprakash, P R Saulson, O Sauter, R L Savage, A Sawadsky, P Schale, M Scheel, J Scheuer, P Schmidt, R Schnabel, R M S Schofield, A Schönbeck, E Schreiber, D Schuette, B W Schulte, B F Schutz, S G Schwalbe, J Scott, S M Scott, E Seidel, D Sellers, A S Sengupta, D Sentenac, V Sequino, A Sergeev, Y Setyawati, D A Shaddock, T J Shaffer, A A Shah, M S Shahriar, M B Shaner, L Shao, B Shapiro, P Shawhan, H Shen, D H Shoemaker, D M Shoemaker, K Siellez, X Siemens, M Sieniawska, D Sigg, A D Silva, L P Singer, A Singh, A Singhal, A M Sintes, B J J Slagmolen, T J Slaven-Blair, B Smith, J R Smith, R J E Smith, S Somala, E J Son, B Sorazu, F Sorrentino, T Souradeep, A P Spencer, A K Srivastava, K Staats, M Steinke, J Steinlechner, S Steinlechner, D Steinmeyer, B Steltner, S P Stevenson, D Stocks, R Stone, D J Stops, K A Strain, G Stratta, S E Strigin, A Strunk, R Sturani, A L Stuver, T Z Summerscales, L Sun, S Sunil, J Suresh, P J Sutton, B L Swinkels, M J Szczepańczyk, M Tacca, S C Tait, C Talbot, D Talukder, D B Tanner, M Tápai, A Taracchini, J D Tasson, J A Taylor, R Taylor, S V Tewari, T Theeg, F Thies, E G Thomas, M Thomas, P Thomas, K A Thorne, E Thrane, S Tiwari, V Tiwari, K V Tokmakov, K Toland, M Tonelli, Z Tornasi, A Torres-Forné, C I Torrie, D Töyrä, F Travasso, G Traylor, J Trinastic, M C Tringali, A Trovato, L Trozzo, K W Tsang, M Tse, R Tso, D Tsuna, L Tsukada, D Tuyenbayev, K Ueno, D Ugolini, A L Urban, S A Usman, H Vahlbruch, G Vajente, G Valdes, N van Bakel, M van Beuzekom, J F J van den Brand, C Van Den Broeck, D C Vander-Hyde, L van der Schaaf, J V van Heijningen, A A van Veggel, M Vardaro, V Varma, S Vass, M Vasúth, A Vecchio, G Vedovato, J Veitch, P J Veitch, K Venkateswara, G Venugopalan, D Verkindt, F Vetrano, A Viceré, A D Viets, S Vinciguerra, D J Vine, J-Y Vinet, S Vitale, T Vo, H Vocca, C Vorvick, S P Vyatchanin, A R Wade, L E Wade, M Wade, R Walet, M Walker, L Wallace, S Walsh, G Wang, H Wang, J Z Wang, W H Wang, Y F Wang, R L Ward, J Warner, M Was, J Watchi, B Weaver, L-W Wei, M Weinert, A J Weinstein, R Weiss, F Wellmann, L Wen, E K Wessel, P Weßels, J Westerweck, K Wette, J T Whelan, B F Whiting, C Whittle, D Wilken, D Williams, R D Williams, A R Williamson, J L Willis, B Willke, M H Wimmer, W Winkler, C C Wipf, H Wittel, G Woan, J Woehler, J K Wofford, W K Wong, J Worden, J L Wright, D S Wu, D M Wysocki, S Xiao, W Yam, H Yamamoto, C C Yancey, L Yang, M J Yap, M Yazback, Hang Yu, Haocun Yu, M Yvert, A Zadrożny, M Zanolin, T Zelenova, J-P Zendri, M Zevin, J Zhang, L Zhang, M Zhang, T Zhang, Y-H Zhang, C Zhao, M Zhou, Z Zhou, S J Zhu, X J Zhu, A B Zimmerman, Y Zlochower, M E Zucker, J Zweizig
On 17 August 2017, the LIGO and Virgo observatories made the first direct detection of gravitational waves from the coalescence of a neutron star binary system. The detection of this gravitational-wave signal, GW170817, offers a novel opportunity to directly probe the properties of matter at the extreme conditions found in the interior of these stars. The initial, minimal-assumption analysis of the LIGO and Virgo data placed constraints on the tidal effects of the coalescing bodies, which were then translated to constraints on neutron star radii...
October 19, 2018: Physical Review Letters
https://read.qxmd.com/read/30357728/o-2-co-2-biological-detection-to-homeostatic-control
#13
Robert S Fitzgerald
Oxygen (O2 ) and Carbon Dioxide (CO2 ) are the two gases to be detected and controlled. Of interest might be a query of the evolutionary origin of each. From the cooling of the Big Bang (~13.8 Billion Years Ago [BYA]) came a quark-gluon plasma from which protons and neutrons emerged, producing H, He, Li. As H and He collapsed into the first stars at ~13.3 BYA carbon and monatomic oxygen were generated. Some 3 billion years ago greater amounts of diatomic oxygen (O2 ) were provided by earth's photosynthesizing bacteria until earth's atmosphere had sufficient amounts to sustain the life processes of multicellular animals, and finally higher vertebrates...
2018: Advances in Experimental Medicine and Biology
https://read.qxmd.com/read/30333699/hyperons-the-strange-ingredients-of-the-nuclear-equation-of-state
#14
REVIEW
Isaac Vidaña
We review the role and properties of hyperons in finite and infinite nuclear systems. In particular, we present different production mechanisms of hypernuclei, as well as several aspects of hypernuclear γ -ray spectroscopy, and the weak decay modes of hypernuclei. Then we discuss the construction of hyperon-nucleon and hyperon-hyperon interactions on the basis of the meson-exchange and chiral effective field theories. Recent developments based on the so-called V low  k approach and lattice quantum chromodynamics will also be addressed...
September 2018: Proceedings. Mathematical, Physical, and Engineering Sciences
https://read.qxmd.com/read/30333628/a-two-per-cent-hubble-constant-measurement-from-standard-sirens-within-five-years
#15
Hsin-Yu Chen, Maya Fishbach, Daniel E Holz
Gravitational-wave detections provide a novel way to determine the Hubble constant1-3 , which is the current rate of expansion of the Universe. This 'standard siren' method, with the absolute distance calibration provided by the general theory of relativity, was used to measure the Hubble constant using the gravitational-wave detection of the binary neutron-star merger, GW170817, by the Laser Interferometer Gravitational-Wave Observatory (LIGO) and Virgo4 , combined with optical identification of the host galaxy5,6 NGC 4993...
October 2018: Nature
https://read.qxmd.com/read/30327476/a-luminous-blue-kilonova-and-an-off-axis-jet-from-a-compact-binary-merger-at-z-0-1341
#16
E Troja, G Ryan, L Piro, H van Eerten, S B Cenko, Y Yoon, S-K Lee, M Im, T Sakamoto, P Gatkine, A Kutyrev, S Veilleux
The recent discovery of a gamma-ray burst (GRB) coincident with the gravitational-wave (GW) event GW170817 revealed the existence of a population of low-luminosity short duration gamma-ray transients produced by neutron star mergers in the nearby Universe. These events could be routinely detected by existing gamma-ray monitors, yet previous observations failed to identify them without the aid of GW triggers. Here we show that GRB150101B is an analogue of GRB170817A located at a cosmological distance. GRB150101B is a faint short burst characterized by a bright optical counterpart and a long-lived X-ray afterglow...
October 16, 2018: Nature Communications
https://read.qxmd.com/read/30312063/elasticity-of-nuclear-pasta
#17
M E Caplan, A S Schneider, C J Horowitz
The elastic properties of neutron star crusts are relevant for a variety of currently observable or near-future electromagnetic and gravitational wave phenomena. These phenomena may depend on the elastic properties of nuclear pasta found in the inner crust. We present large-scale classical molecular dynamics simulations where we deform nuclear pasta. We simulate idealized samples of nuclear pasta and describe their breaking mechanism. We also deform nuclear pasta that is arranged into many domains, similar to what is known for the ions in neutron star crusts...
September 28, 2018: Physical Review Letters
https://read.qxmd.com/read/30312047/disentangling-coalescing-neutron-star-white-dwarf-binaries-for-lisa
#18
Thomas M Tauris
The prime candidate sources for the upcoming space-borne gravitational wave (GW) observatory LISA are the numerous Galactic tight binaries of white dwarfs (WDs) and neutron stars (NSs), many of which will coalesce and undergo mass transfer, leading to simultaneous emission of x rays and GWs. Here, detailed and coherent numerical stellar models are explored for the formation and evolution of these systems, including finite-temperature effects and complete calculations of mass transfer from a WD to a NS accretor...
September 28, 2018: Physical Review Letters
https://read.qxmd.com/read/30309948/a-hot-and-fast-ultra-stripped-supernova-that-likely-formed-a-compact-neutron-star-binary
#19
K De, M M Kasliwal, E O Ofek, T J Moriya, J Burke, Y Cao, S B Cenko, G B Doran, G E Duggan, R P Fender, C Fransson, A Gal-Yam, A Horesh, S R Kulkarni, R R Laher, R Lunnan, I Manulis, F Masci, P A Mazzali, P E Nugent, D A Perley, T Petrushevska, A L Piro, C Rumsey, J Sollerman, M Sullivan, F Taddia
Compact neutron star binary systems are produced from binary massive stars through stellar evolution involving up to two supernova explosions. The final stages in the formation of these systems have not been directly observed. We report the discovery of iPTF 14gqr (SN 2014ft), a type Ic supernova with a fast-evolving light curve indicating an extremely low ejecta mass (≈0.2 solar masses) and low kinetic energy (≈2 × 1050 ergs). Early photometry and spectroscopy reveal evidence of shock cooling of an extended helium-rich envelope, likely ejected in an intense pre-explosion mass-loss episode of the progenitor...
October 12, 2018: Science
https://read.qxmd.com/read/30299918/dynamics-of-architecturally-engineered-all-polymer-nanocomposites
#20
Erkan Senses, Madhusudan Tyagi, Madeleine Pasco, Antonio Faraone
We present nanocomposite materials formed by using glassy star-shaped polymers as nanofillers and dispersing them in soft matrices. The resulting "architecturally engineered" polymer nanocomposites structurally reside between the linear homopolymer blends and the conventional polymer nanocomposites with inorganic fillers, inducing reinforcement, which can be as strong as that of solid nanoparticles, or softening depending on the compactness and concentration of the nanoparticles. Such behavior can be traced back to the dynamical features at the local segmental and the chain level, which we investigated using neutron scattering over a wide range of time and length scales in the glassy and melt states of the nanocomposites...
November 27, 2018: ACS Nano
keyword
keyword
163009
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"