Results 21 to 30 of about 745,401 (375)

Gravitational collapse in cubic Horndeski theories [PDF]

Classical and quantum gravity, 2020
We study spherically symmetric gravitational collapse in cubic Horndeski theories of gravity. By varying the coupling constants and the initial amplitude of the scalar field, we determine the region in the space of couplings and amplitudes for which it ...
P. Figueras, Tiago França
semanticscholar   +1 more source

Investigating gravitational collapse of a pebble cloud to form transneptunian binaries [PDF]

Astronomy & Astrophysics, 2020
Context. A large fraction of transneptunian objects are found in binary pairs, ~30% in the cold classical population between ahel ~ 39 and ~48 AU. Observationally, these binaries generally have components of similar size and colour.
James E. Robinson, W. Fraser, A. Fitzsimmons, P. Lacerda   +3 more
semanticscholar   +1 more source

Stellar collapse and gravitational waves [PDF]

, 2002
31 pages, 9 figures, to appear in "Stellar Collapse" (Astrophysics and Space Science), edited by C.
Chris L. Fryer, D. E. Holz, Scott A. Hughes, Michael S. Warren   +3 more
openalex   +4 more sources

Gravitational Waves from Neutrino Emission Asymmetries in Core-collapse Supernovae [PDF]

Astrophysical Journal, 2020
We present a broadband spectrum of gravitational waves (GWs) from core-collapse supernovae (CCSNe) sourced by neutrino emission asymmetries for a series of full 3D simulations.
D. Vartanyan, A. Burrows
semanticscholar   +1 more source

Gravitational-wave signal of a core-collapse supernova explosion of a 15 M⊙ star [PDF]

Physical Review D, 2020
We report on the gravitational-wave signal computed in the context of a three-dimensional simulation of a core-collapse supernova explosion of a $15\text{ }{M}_{\ensuremath{\bigodot}}$ star.
K. Yakunin, A. Mezzacappa, P. Marronetti, E. Lentz, S. Bruenn, W. Hix, O. E. Bronson Messer, E. Endeve, J. Blondin, J. A. Harris   +9 more
semanticscholar   +1 more source

Gravitational collapse in Einstein dilaton-Gauss–Bonnet gravity [PDF]

Classical and quantum gravity, 2019
We present results from a numerical study of spherical gravitational collapse in shift symmetric Einstein dilaton Gauss–Bonnet (EdGB) gravity. This modified gravity theory has a single coupling parameter that when zero reduces to general relativity (GR ...
Justin L. Ripley, F. Pretorius
semanticscholar   +1 more source

Gravitational collapse: expanding and collapsing regions [PDF]

General Relativity and Gravitation, 2010
12 pages, 4 figures, accepted for publication in Gen.
Sharif, M., Abbas, G.
openaire   +2 more sources

Hyperbolicity in spherical gravitational collapse in a Horndeski theory [PDF]

Physical Review D, 2019
We numerically study spherical gravitational collapse in shift symmetric Einstein dilaton Gauss Bonnet (EdGB) gravity. We find evidence that there are open sets of initial data for which the character of the system of equations changes from hyperbolic to
Justin L. Ripley, F. Pretorius
semanticscholar   +1 more source

Gravitational quantum collapse in dilute systems

Comptes Rendus. Physique, 2022
Penrose has suggested that large fluctuations of the gravitational energy of quantum systems, resulting from fluctuations of its density in space, may induce a quantum collapse mechanism [1], but he did not propose a precise dynamics for this process. We
Laloë, Franck
doaj   +1 more source

Gravitational Waves from Gravitational Collapse [PDF]

, 2002
Gravitational wave emission from the gravitational collapse of massive stars has been studied for more than three decades. Current state of the art numerical investigations of collapse include those that use progenitors with realistic angular momentum ...
A Buonanno, A Burrows, A Burrows, A Burrows, A Burrows, A Hayashi, A Hayashi, A Heger, A Heger, A Heger, A Heger, A Hungerford, A Hungerford, A Loeb, A Mezzacappa, A Mezzacappa, AI MacFadyen, AK Schenk, AL Watts, AR King, BF Schutz, BJ Carr, BK Pickett, California Institute of Technology, CD Ott, CJ Hogan, CL Fryer, CL Fryer, CL Fryer, CL Fryer, CL Fryer, CL Fryer, CL Fryer, CL Fryer, CL Fryer, CL Fryer, CL Fryer, CL Fryer, CL Fryer, CL Fryer, CL Fryer, CL Fryer, CW Misner, D Lai, D Lai, D Lai, D Proga, DJ Eisenstein, DK Nadyozhin, DT Wickramasinghe, E Baron, E Baron, E Baron, E Berger, E Bravo, E Cappellaro, E Müller, E Müller, E Müller, E Müller, E Müller, E Müller, E Müller, E Seidel, E Seidel, EE Salpeter, EMD Symbalisty, EW Leaver, F Brachwitz, FA Jenet, FD Macchetto, FD Swesty, G Bazan, GB Cook, H Dimmelmeier, H Dimmelmeier, H Dimmelmeier, H Dimmelmeier, H-T Janka, H-T Janka, H-T Janka, H-T Janka, H-T Janka, HA Bethe, HA Bethe, Hannover University, HC Spruit, I Baraffe, I Hachisu, I Iben, ID Novikov, J Isern, J Kormendy, J Toman, J Woodward, J-A Marck, J-L Tassoul, JC Wheeler, JD Brown, JD Brown, JE Tohline, JE Tohline, JL Friedman, JL Houser, JM Blondin, JM Centrella, JN Imamura, JN Imamura, JR Wilson, JR Wilson, K Kifonidis, K Kotake, K Kotake, K Kotake, K Nomoto, KCB New, KCB New, KCB New, KS Thorne, KS Thorne, KS Thorne, KS Thorne, L Blanchet, L Ferrarese, L Lindblom, L Lindblom, L Lindblom, L Lindblom, L Rezzolla, L Rezzolla, L Rezzolla, L Scheck, L Villain, LC Loveridge, LR Yungelson, LS Finn, LS Finn, LS Finn, M Alcubierre, M Bardeen, M Hamuy, M Herant, M Herant, M Kato, M Liebendörfer, M Rampp, M Rampp, M Saijo, M Saijo, M Saijo, M Shibata, M Shibata, M Shibata, M Shibata, M Shibata, M Shibata, M Shibata, M Shibata, M Shibata, Max Planck Institute for Astrophysics, Max Planck Institute for Astrophysics, MC Begelman, MD Duez, MG Haehnelt, MG Haehnelt, MG Haehnelt, MHPM Putten van, MHPM Putten van, MJ Rees, MS Turner, N Andersson, N Andersson, N Arnaud, N Stergioulas, N Stergioulas, NASA/ESA, National Astronomical Observatory, O Zanotti, P Arras, P Bodenheimer, P Gressman, P Haensel, P Podsiadlowski, PA Young, PB Jones, PB Jones, R Buras, R Epstein, R Epstein, R Maiolino, R Mayle, R Mönchmeyer, R Popham, R Ruffini, R Walder, RA Managan, RA Saenz, RA Saenz, RA Saenz, RF Stark, RH Durisen, RH Sanders, RL Bowers, RL Bowers, S Akiyama, S Bonazzola, S Cassisi, S Chandrasekhar, S Chandrasekhar, S Chandrasekhar, S Detweiler, S Kobayashi, S Kobayashi, S Ou, S Smith, S Starrfield, S Yamada, S Yu-ichirou, SA Colgate, SA Colgate, SA Colgate, SA Hughes, SC Yooun, SE Woosley, SE Woosley, SE Woosley, SL Shapiro, SL Shapiro, SL Shapiro, SL Shapiro, SN Nazin, SW Bruenn, SW Bruenn, T Abel, T Abel, T Foglizzo, T Nakamura, T Nakamura, T Piran, T Zwerger, TA Thompson, TW Baumgarte, TW Baumgarte, TW Baumgarte, TW Baumgarte, TW Baumgarte, TX Thuan, V Bromm, V Ferrari, V Ferrari, W Hillebrandt, WCG Ho, WD Arnett, Y Eriguchi, Y Sekiguchi, YT Liu, YT Liu   +256 more
core   +3 more sources