Results 41 to 50 of about 31,180 (215)

Critical Conditions for Core-Collapse Supernovae [PDF]

Physical Review Letters, 2012
The explosion of a core-collapse supernova can be approximated by the breakdown of steady-state solutions for accretion onto a proto-neutron star (PNS). We analytically show that as the neutrino luminosity exceeds a critical value L_c, the neutrinosphere pressure exceeds the hydrostatic limit even for an optimal shock radius R.
Keshet, Uri, Balberg, Shmuel
openaire   +3 more sources

Essential ingredients in core-collapse supernovae

AIP Advances, 2014
Carrying 1044 joules of kinetic energy and a rich mix of newly synthesized atomic nuclei, core-collapse supernovae are the preeminent foundries of the nuclear species which make up our solar system and ourselves.
W. Raphael Hix, Eric J. Lentz, Eirik Endeve, Mark Baird, M. Austin Chertkow, J. Austin Harris, O. E. Bronson Messer, Anthony Mezzacappa, Stephen Bruenn, John Blondin   +9 more
doaj   +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

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

A New Monte Carlo Method for Time-Dependent Neutrino Radiation Transport [PDF]

, 2012
Monte Carlo approaches to radiation transport have several attractive properties compared to deterministic methods. These include simplicity of implementation, high accuracy, and good parallel scaling.
Adam Burrows, Bruenn, Bruenn, Burrows, Burrows, Burrows, Christian D. Ott, Erik Schnetter, Ernazar Abdikamalov, Evan O'Connor, Frank Löffler, Gentile, Goodale, Hanke, Hillebrandt, Hubeny, Hummer, Janka, Janka, Janka, Janka, Joshua C. Dolence, Kalos, Kasen, Keil, Liebendörfer, Liebendörfer, Marek, Martin, Mezzacappa, Mihalas, Morel, Murphy, Nordhaus, Ott, Pejcha, Pomraning, Rampp, Smit, Sumiyoshi, Sumiyoshi, Suwa, Swesty, Takahashi, Takiwaki, Thompson, Thompson, Wollaber, Wollaber, Yakunin, Yamada, Zink   +51 more
core   +2 more sources

Core-collapse supernovae missed by optical surveys [PDF]

, 2012
We estimate the fraction of core-collapse supernovae (CCSNe) that remain undetected by optical SN searches due to obscuration by large amounts of dust in their host galaxies.
A. Alonso-Herrero, A. Efstathiou, Alonso-Herrero, Alonso-Herrero, Alonso-Herrero, Arcavi, Berger, Beswick, Blondin, Bond, Branch, Cappellaro, Caputi, Charmandaris, Chornock, Dahlen, Dahlen, Dudley, E. Kankare, Efstathiou, Elias-Rosa, Farrah, Freedman, G. Östlin, García-Marín, Gieren, Grogin, Grossan, Heckman, Horiuchi, J. Melinder, Jha, Kankare, Kankare, Karachentsev, Karachentsev, Kartaltepe, Kashi, Kennicutt, Kochanek, Krisciunas, Le Floc'h, Leonard, Li, Lonsdale, M. Á. Pérez-Torres, Mattila, Mattila, Mattila, Mattila, Mattila, Melinder, Michałowski, Modjaz, Monard, Neff, Newton, P. Väisänen, Pietrzyński, Prieto, Pumo, Pérez-González, Reddy, Rodney, Rujopakarn, S. Mattila, S. Ryder, Sanders, Schiminovich, Schlegel, Schmidt, Smith, Soifer, Solanes, Szczygiel, T. Dahlen, Takada-Hidai, Tsvetkov, Ulvestad, van Buren, Van Dyk, Veilleux   +81 more
core   +2 more sources

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

Spectropolarimetry of Core-Collapse Supernovae [PDF]

, 2004
We briefly review the young field of spectropolarimetry of core-collapse supernovae (SNe). Spectropolarimetry provides the only direct known probe of early-time supernova (SN) geometry.
Filippenko, Alexei V., Leonard, Douglas C.   +1 more
core   +1 more source

Hitchhiker's Guide to the Swampland: The Cosmologist's Handbook to the String‐Theoretical Swampland Programme

Fortschritte der Physik, Volume 74, Issue 4, April 2026.
Abstract String theory has strong implications for cosmology, implying the absence of a cosmological constant, ruling out single‐field slow‐roll inflation, and that black holes decay. The origins of these statements are elucidated within the string‐theoretical swampland programme.
Kay Lehnert
wiley   +1 more source