keyword
MENU ▼
Read by QxMD icon Read
search

Neutron star

keyword
https://www.readbyqxmd.com/read/30462612/stochastic-gravitational-wave-backgrounds
#1
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://www.readbyqxmd.com/read/30405228/universal-prethermal-dynamics-of-bose-gases-quenched-to-unitarity
#2
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://www.readbyqxmd.com/read/30387654/gw170817-measurements-of-neutron-star-radii-and-equation-of-state
#3
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://www.readbyqxmd.com/read/30357728/o-2-co-2-biological-detection-to-homeostatic-control
#4
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://www.readbyqxmd.com/read/30333699/hyperons-the-strange-ingredients-of-the-nuclear-equation-of-state
#5
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://www.readbyqxmd.com/read/30333628/a-two-per-cent-hubble-constant-measurement-from-standard-sirens-within-five-years
#6
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://www.readbyqxmd.com/read/30327476/a-luminous-blue-kilonova-and-an-off-axis-jet-from-a-compact-binary-merger-at-z-0-1341
#7
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://www.readbyqxmd.com/read/30312063/elasticity-of-nuclear-pasta
#8
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://www.readbyqxmd.com/read/30312047/disentangling-coalescing-neutron-star-white-dwarf-binaries-for-lisa
#9
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://www.readbyqxmd.com/read/30309948/a-hot-and-fast-ultra-stripped-supernova-that-likely-formed-a-compact-neutron-star-binary
#10
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://www.readbyqxmd.com/read/30299918/dynamics-of-architecturally-engineered-all-polymer-nanocomposites
#11
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
https://www.readbyqxmd.com/read/30283106/very-high-energy-particle-acceleration-powered-by-the-jets-of-the-microquasar-ss-433
#12
A U Abeysekara, A Albert, R Alfaro, C Alvarez, J D Álvarez, R Arceo, J C Arteaga-Velázquez, D Avila Rojas, H A Ayala Solares, E Belmont-Moreno, S Y BenZvi, C Brisbois, K S Caballero-Mora, T Capistrán, A Carramiñana, S Casanova, M Castillo, U Cotti, J Cotzomi, S Coutiño de León, C De León, E De la Fuente, J C Díaz-Vélez, S Dichiara, B L Dingus, M A DuVernois, R W Ellsworth, K Engel, C Espinoza, K Fang, H Fleischhack, N Fraija, A Galván-Gámez, J A García-González, F Garfias, A González-Muñoz, M M González, J A Goodman, Z Hampel-Arias, J P Harding, S Hernandez, J Hinton, B Hona, F Hueyotl-Zahuantitla, C M Hui, P Hüntemeyer, A Iriarte, A Jardin-Blicq, V Joshi, S Kaufmann, P Kar, G J Kunde, R J Lauer, W H Lee, H León Vargas, H Li, J T Linnemann, A L Longinotti, G Luis-Raya, R López-Coto, K Malone, S S Marinelli, O Martinez, I Martinez-Castellanos, J Martínez-Castro, J A Matthews, P Miranda-Romagnoli, E Moreno, M Mostafá, A Nayerhoda, L Nellen, M Newbold, M U Nisa, R Noriega-Papaqui, J Pretz, E G Pérez-Pérez, Z Ren, C D Rho, C Rivière, D Rosa-González, M Rosenberg, E Ruiz-Velasco, F Salesa Greus, A Sandoval, M Schneider, H Schoorlemmer, M Seglar Arroyo, G Sinnis, A J Smith, R W Springer, P Surajbali, I Taboada, O Tibolla, K Tollefson, I Torres, G Vianello, L Villaseñor, T Weisgarber, F Werner, S Westerhoff, J Wood, T Yapici, G Yodh, A Zepeda, H Zhang, H Zhou
SS 433 is a binary system containing a supergiant star that is overflowing its Roche lobe with matter accreting onto a compact object (either a black hole or neutron star)1-3 . Two jets of ionized matter with a bulk velocity of approximately 0.26c (where c is the speed of light in vacuum) extend from the binary, perpendicular to the line of sight, and terminate inside W50, a supernova remnant that is being distorted by the jets2,4-8 . SS 433 differs from other microquasars (small-scale versions of quasars that are present within our own Galaxy) in that the accretion is believed to be super-Eddington9-11 , and the luminosity of the system is about 1040 ergs per second2,9,12,13 ...
October 2018: Nature
https://www.readbyqxmd.com/read/30258226/an-evolving-jet-from-a-strongly-magnetized-accreting-x-ray-pulsar
#13
J van den Eijnden, N Degenaar, T D Russell, R Wijnands, J C A Miller-Jones, G R Sivakoff, J V Hernández Santisteban
Relativistic jets are observed throughout the Universe and strongly affect their surrounding environments on a range of physical scales, from Galactic binary systems1 to galaxies and clusters of galaxies2 . All types of accreting black hole and neutron star have been observed to launch jets3 , with the exception of neutron stars with strong magnetic fields4,5 (higher than 1012 gauss), leading to the conclusion that their magnetic field strength inhibits jet formation6 . However, radio emission recently detected from two such objects could have a jet origin, among other possible explanations7,8 , indicating that this long-standing idea might need to be reconsidered...
October 2018: Nature
https://www.readbyqxmd.com/read/30240262/resolving-the-%C3%AE-hypernuclear-overbinding-problem-in-pionless-effective-field-theory
#14
L Contessi, N Barnea, A Gal
We address the Λ hypernuclear "overbinding problem" in light hypernuclei which stands for a 1-3 MeV excessive Λ separation energy calculated in _{Λ}^{5}He. This problem arises in most few-body calculations that reproduce ground-state Λ separation energies in the lighter Λ hypernuclei within various hyperon-nucleon interaction models. Recent pionless effective field theory (πEFT) nuclear few-body calculations are extended in this work to Λ hypernuclei. At leading order, the ΛN low-energy constants are associated with ΛN scattering lengths, and the ΛNN low-energy constants are fitted to Λ separation energies (B_{Λ}^{exp}) for A≤4...
September 7, 2018: Physical Review Letters
https://www.readbyqxmd.com/read/30230872/tidal-deformabilities-and-radii-of-neutron-stars-from-the-observation-of-gw170817
#15
Soumi De, Daniel Finstad, James M Lattimer, Duncan A Brown, Edo Berger, Christopher M Biwer
We use gravitational-wave observations of the binary neutron star merger GW170817 to explore the tidal deformabilities and radii of neutron stars. We perform a Bayesian parameter estimation with the source location and distance informed by electromagnetic observations. We also assume that the two stars have the same equation of state; we demonstrate that, for stars with masses comparable to the component masses of GW170817, this is effectively implemented by assuming that the stars' dimensionless tidal deformabilities are determined by the binary's mass ratio q by Λ_{1}/Λ_{2}=q^{6}...
August 31, 2018: Physical Review Letters
https://www.readbyqxmd.com/read/30185904/superluminal-motion-of-a-relativistic-jet-in-the-neutron-star-merger-gw170817
#16
K P Mooley, A T Deller, O Gottlieb, E Nakar, G Hallinan, S Bourke, D A Frail, A Horesh, A Corsi, K Hotokezaka
The binary neutron-star merger GW1708171 was accompanied by radiation across the electromagnetic spectrum2 and localized2 to the galaxy NGC 4993 at a distance3 of about 41 megaparsecs from Earth. The radio and X-ray afterglows of GW170817 exhibited delayed onset4-7 , a gradual increase8 in the emission with time (proportional to t0.8 ) to a peak about 150 days after the merger event9 , followed by a relatively rapid decline9,10 . So far, various models have been proposed to explain the afterglow emission, including a choked-jet cocoon4,8,11-13 and a successful-jet cocoon4,8,11-18 (also called a structured jet)...
September 5, 2018: Nature
https://www.readbyqxmd.com/read/30169084/testing-gravitational-memory-generation-with-compact-binary-mergers
#17
Huan Yang, Denis Martynov
Gravitational memory is an important prediction of General Relativity, which is intimately related to asymptotic symmetries at null infinity and the so-called soft graviton theorem. For a given transient astronomical event, the angular distribution of energy and angular momentum fluxes uniquely determine the displacement and spin memory effect in the sky. We investigate the possibility of using the binary black hole merger events detected by Advanced LIGO/Virgo to test the relation between the source's energy emission and the gravitational memory measured on Earth, as predicted by General Relativity...
August 17, 2018: Physical Review Letters
https://www.readbyqxmd.com/read/30169068/correlations-imposed-by-the-unitary-limit-between-few-nucleon-systems-nuclear-matter-and-neutron-stars
#18
A Kievsky, M Viviani, D Logoteta, I Bombaci, L Girlanda
The large values of the singlet and triplet two-nucleon scattering lengths locate the nuclear system close to the unitary limit. This particular position strongly constrains the low-energy observables in the three-nucleon system as depending on one parameter, the triton binding energy, and introduces correlations in the low-energy sector of light nuclei. Here we analyze the propagation of these correlations to infinite nuclear matter showing that its saturation properties, the equation of state of β-stable nuclear matter, and several properties of neutron stars, as their maximum mass, are well determined solely by a few number of low-energy quantities of the two- and three-nucleon systems...
August 17, 2018: Physical Review Letters
https://www.readbyqxmd.com/read/30141676/testing-dark-decays-of-baryons-in-neutron-stars
#19
Gordon Baym, D H Beck, Peter Geltenbort, Jessie Shelton
The observation of neutron stars with masses greater than one solar mass places severe demands on any exotic neutron decay mode that could explain the discrepancy between beam and bottle measurements of the neutron lifetime. If the neutron can decay to a stable, feebly interacting dark fermion, the maximum possible mass of a neutron star is 0.7M_{⊙}, while all well-measured neutron star masses exceed one M_{⊙}. The existence of 2M_{⊙} neutron stars further indicates that any explanation beyond the standard model for the neutron lifetime puzzle requires dark matter to be part of a multiparticle dark sector with highly constrained interactions...
August 10, 2018: Physical Review Letters
https://www.readbyqxmd.com/read/30141655/neutron-stars-exclude-light-dark-baryons
#20
David McKeen, Ann E Nelson, Sanjay Reddy, Dake Zhou
Exotic particles carrying baryon number and with a mass of the order of the nucleon mass have been proposed for various reasons including baryogenesis, dark matter, mirror worlds, and the neutron lifetime puzzle. We show that the existence of neutron stars with a mass greater than 0.7  M_{⊙} places severe constraints on such particles, requiring them to be heavier than 1.2 GeV or to have strongly repulsive self-interactions.
August 10, 2018: Physical Review Letters
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"