Results 81 to 90 of about 59,386 (288)

Fast-pairwise Collective Neutrino Oscillations Associated with Asymmetric Neutrino Emissions in Core-collapse Supernovae [PDF]

Astrophysical Journal, 2019
We present a linear stability analysis of the fast-pairwise neutrino flavor conversion based on a result of our latest axisymmetric core-collapse supernova (CCSN) simulation with full Boltzmann neutrino transport.
H. Nagakura, Taiki Morinaga, Chinami Kato, S. Yamada   +3 more
semanticscholar   +1 more source

Hydrogen-Rich Core-Collapse Supernovae [PDF]

, 2016
Hydrogen-rich core collapse supernovae, known as "Type II" supernovae, are the most common type of stellar explosion realized in nature. They are defined by the presence of prominent hydrogen lines in their spectra. Type II supernovae are observed only in star-forming galaxies, and several events have been directly linked to massive star progenitors ...
openaire   +2 more sources

The Innermost Ejecta of Core Collapse Supernovae [PDF]

, 2004
We ensure successful explosions (of otherwise non-explosive models) by enhancing the neutrino luminosity via reducing the neutrino scattering cross sections or by increasing the heating efficiency via enhancing the neutrino absorption cross sections in ...
Beloborodov, Buras, C. Fröhlich, E. Bravo, F.-K. Thielemann, Fröhlich, G. Martmez-Pinedo, Janka, Liebendörfer, Liebendörfer, M. Liebendörfer, Mezzacappa, Mezzacappa, N.T. Zinner, Nomoto, P. Hauser, Qian, Rampp, Thielemann, Thielemann, Thompson, Thompson, W.R. Hix, Woosley   +23 more
core   +2 more sources

Observational Constraints on the Progenitors of Core-Collapse Supernovae: The Case for Missing High-Mass Stars [PDF]

Publications Astronomical Society of Australia, 2015
Over the last 15 years, the supernova community has endeavoured to directly identify progenitor stars for core-collapse supernovae discovered in nearby galaxies.
S. Smartt
semanticscholar   +1 more source

Understanding Core-Collapse Supernovae

Nuclear Physics A, 2010
Our understanding of core-collapse supernovae continues to improve as better microphysics is included in increasingly realistic neutrino-radiationhydrodynamic simulations. Recent multi-dimensional models with spectral neutrino transport, which slowly develop successful explosions for a range of progenitors between 12 and 25 solar mass, have motivated ...
W.R. Hix, E.J. Lentz, M. Baird, O.E.B. Messer, A. Mezzacappa, C.-T. Lee, S.W. Bruenn, J.M. Blondin, P. Marronetti   +8 more
openaire   +2 more sources

Topics in core-collapse supernova-theory [PDF]

, 2004
10 pages, 2 color figures, to be published in the proceedings of ``3-D Signatures in Stellar Explosions: A Workshop honoring J.
Burrows, Adam, Ott, Christian D., Meakin, Casey   +2 more
openaire   +2 more sources

Long gamma-ray bursts and core-collapse supernovae have different environments [PDF]

, 2006
When massive stars exhaust their fuel they collapse and often produce the extraordinarily bright explosions known as core-collapse supernovae. On occasion, this stellar collapse also powers an even more brilliant relativistic explosion known as a long ...
A Heger, A Levan, A Panaitescu, A Zeh, A. G. Riess, A. J. Castro-Tirado, A. J. Levan, A. S. Fruchter, A. Smette, AG Riess, AG Riess, AI MacFadyen, AM Soderberg, AS Fruchter, C Kouveliotou, C Weidner, C. Conselice, C. Kouveliotou, CJ Conselice, D Branch, D Malesani, D. Bersier, DA Frail, DF Figer, DJ Schlegel, E Le Floc'h, E. Pian, F Mannucci, H-W Chen, H. C. Ferguson, HA Kobulnicky, I. Burud, J Hjorth, J. E. Rhoads, J. Gorosabel, J. Hjorth, J. M. Castro Cerón, J. P. U. Fynbo, JPU Fynbo, JS Bloom, JS Bloom, JS Bloom, JX Prochaska, K. C. Sahu, KZ Stanek, L Christensen, L. Petro, L. Strolger, LG Strolger, M Della Valle, M Giavalisco, M. Livio, M. R. Metzger, N Gehrels, N Mirabal, N. R. Tanvir, P Podsiadlowski, P. E. Nugent, P. M. Garnavich, P. M. Vreeswijk, PA Crowther, PM Vreeswijk, PM Vreeswijk, R. A. Gibbons, R. A. M. J. Wijers, S Klose, S Perlmutter, S van den Bergh, S van den Bergh, S Woosley, S-C Yoon, S. E. Thorsett, S. E. Woosley, S. T. Holland, SC Chapman, SD van Dyk, T. Dahlen, T. R. Gull, TJ Galama, VV Sokolov, Z. Levay   +80 more
core   +3 more sources

Toward Realistic Models of Core Collapse Supernovae: A Brief Review [PDF]

Proceedings of the International Astronomical Union, 2020
Motivated by their role as the direct or indirect source of many of the elements in the Universe, numerical modeling of core collapse supernovae began more than five decades ago.
A. Mezzacappa
semanticscholar   +1 more source

Production of Radioactive 22Na in Core-collapse Supernovae: The Ne-E(L) Component in Presolar Grains and Its Possible Consequences on Supernova Observations

The Astrophysical Journal
Presolar graphite grains carry the isotopic signatures of their parent stars. A significant fraction of presolar graphites show isotopic abundance anomalies relative to solar for elements such as O, Si, Mg, and Ca, which are compatible with ...
Marco Pignatari, Sachiko Amari, Peter Hoppe, C. Fryer, S. Jones, A. Psaltis, A. M. Laird, F. Herwig, L. Roberti, Thomas Siegert, Maria Lugaro   +10 more
doaj   +1 more source

Fast neutrino-flavor conversion in the preshock region of core-collapse supernovae [PDF]

Physical Review Research, 2019
We make a strong case that the fast neutrino-flavor conversion, one of the collective flavor oscillation modes, commonly occurs in core-collapse supernovae (CCSNe).
Taiki Morinaga, H. Nagakura, Chinami Kato, S. Yamada   +3 more
semanticscholar   +1 more source