Results 31 to 40 of about 59,386 (288)

Explosion Mechanism of Core-collapse Supernovae: Role of the Si/Si–O Interface [PDF]

Astrophysical Journal, 2022
We present a simple criterion to predict the explodability of massive stars based on the density and entropy profiles before collapse. If a pronounced density jump is present near the Si/Si–O interface, the star will likely explode.
L. Boccioli, L. Roberti, M. Limongi, G. Mathews, A. Chieffi   +4 more
semanticscholar   +1 more source

Equation-of-state Dependence of Gravitational Waves in Core-collapse Supernovae [PDF]

Astrophysical Journal, 2021
Gravitational waves (GWs) provide unobscured insight into the birthplace of neutron stars and black holes in core-collapse supernovae (CCSNe). The nuclear equation of state (EOS) describing these dense environments is yet uncertain, and variations in its
Oliver Eggenberger Andersen, S. Zha, André da Silva Schneider, Aurore Betranhandy, S. Couch, E. O’Connor   +5 more
semanticscholar   +1 more source

Hydrodynamics of core-collapse supernovae and their progenitors [PDF]

Living Reviews in Computational Astrophysics, 2020
Multi-dimensional fluid flow plays a paramount role in the explosions of massive stars as core-collapse supernovae. In recent years, three-dimensional (3D) simulations of these phenomena have matured significantly.
B. Müller
semanticscholar   +2 more sources

Binary-stripped Stars as Core-collapse Supernovae Progenitors [PDF]

Astrophysical Journal Letters, 2021
Most massive stars experience binary interactions in their lifetimes that can alter both the surface and core structure of the stripped star with significant effects on their ultimate fate as core-collapse supernovae.
D. Vartanyan, E. Laplace, M. Renzo, Y. Götberg, A. Burrows, S. D. de Mink   +5 more
semanticscholar   +1 more source

Carnegie Supernova Project-II: Near-infrared Spectroscopy of Stripped-envelope Core-collapse Supernovae [PDF]

Astrophysical Journal, 2021
We present 75 near-infrared (NIR; 0.8−2.5 μm) spectra of 34 stripped-envelope core-collapse supernovae (SESNe) obtained by the Carnegie Supernova Project-II (CSP-II), encompassing optical spectroscopic Types IIb, Ib, Ic, and Ic-BL.
M. Shahbandeh, E. Hsiao, C. Ashall, J. Teffs, P. Hoeflich, N. Morrell, M. Phillips, J. Anderson, E. Baron, C. Burns, C. Contreras, S. Davis, T. Diamond, G. Folatelli, L. Galbany, C. Gall, S. Hachinger, S. Holmbo, E. Karamehmetoglu, M. Kasliwal, R. Kirshner, K. Krisciunas, S. Kumar, J. Lu, G. H. Marion, P. Mazzali, A. Piro, D. Sand, M. Stritzinger, N. Suntzeff, F. Taddia, S. Uddin   +31 more
semanticscholar   +1 more source

Revealing the Progenitor of SN 2021zby through Analysis of the TESS Shock-cooling Light Curve

The Astrophysical Journal Letters, 2023
We present early observations and analysis of the double-peaked Type IIb supernova (SN IIb) SN 2021zby. TESS captured the prominent early shock-cooling peak of SN 2021zby within the first ∼10 days after explosion with a 30 minute cadence.
Qinan Wang, Patrick Armstrong, Yossef Zenati, Ryan Ridden-Harper, Armin Rest, Iair Arcavi, Charles D. Kilpatrick, Ryan J. Foley, Brad E. Tucker, Chris Lidman, Thomas L. Killestein, Melissa Shahbandeh, Joseph P Anderson, Rodrigo Angulo, Chris Ashall, Jamison Burke, Ting-Wan Chen, Sophie von Coelln, Kyle A. Dalrymple, Kyle W. Davis, Michael D. Fulton, Lluís Galbany, Estefania Padilla Gonzalez, Bore Gao, Mariusz Gromadzki, D. Andrew Howell, Nada Ihanec, Jacob E. Jencson, David O. Jones, Joseph D. Lyman, Curtis McCully, Tomás E. Müller-Bravo, Megan Newsome, Matt Nicholl, David O’Neill, Craig Pellegrino, Sofia Rest, Stephen J. Smartt, Ken Smith, Shubham Srivastav, Giacomo Terreran, Samaporn Tinyanont, David R. Young, Alfredo Zenteno   +43 more
doaj   +1 more source

Nonlinear evolution of fast neutrino flavor conversion in the preshock region of core-collapse supernovae [PDF]

Physical Review D, 2021
In environments with high dense neutrino gases, such as in core-collapse supernovae, the neutrinos can experience collective neutrino oscillation due to their self-interactions.
Masamichi Zaizen, Taiki Morinaga
semanticscholar   +1 more source

Three-dimensional models of core-collapse supernovae from low-mass progenitors with implications for Crab [PDF]

Monthly notices of the Royal Astronomical Society, 2020
We present 3D full-sphere supernova simulations of non-rotating low-mass (∼9 M⊙) progenitors, covering the entire evolution from core collapse through bounce and shock revival, through shock breakout from the stellar surface, until fallback is ...
G. Stockinger, H. Janka, D. Kresse, T. Melson, T. Ertl, M. Gabler, A. Gessner, A. Wongwathanarat, A. Tolstov, S. Leung, K. Nomoto, A. H. M. Astrophysics, Garching, Tu Muenchen, Universidade Estadual de Santa Cruz, Ilheus, U. Tuebingen, Mpi Intelligent Systems, Tuebingen, The Open University of Japan, Chiba, Tapir, Caltech, K. Institute, U. Tokyo, Monash Univ., Jina, Michigan State, Tsung-Dao Lee Institute, Shanghai, ASTRO-3D, Australia, Arccegwd, Clayton   +33 more
semanticscholar   +1 more source

Prospects for Extending the Core-collapse Supernova Detection Horizon Using High-energy Neutrinos

The Astrophysical Journal, 2023
Large neutrino detectors like IceCube monitor for core-collapse supernovae using low-energy (MeV) neutrinos with a detection reach from a supernova neutrino burst to the Magellanic Cloud. However, some models predict the emission of high-energy neutrinos
Nora Valtonen-Mattila, Erin O’Sullivan
doaj   +1 more source

Three-dimensional core-collapse supernovae with complex magnetic structures – I. Explosion dynamics [PDF]

Monthly notices of the Royal Astronomical Society, 2021
Magnetic fields can play a major role in the dynamics of outstanding explosions associated to violent events such as gamma-ray bursts and hypernovae, since they provide a natural mechanism to harness the rotational energy of the central proto-neutron ...
M. Bugli, J. Guilet, M. Obergaulinger
semanticscholar   +1 more source