Results 81 to 90 of about 30,104 (177)

Superluminous Supernovae No Threat From Eta Carinae [PDF]

, 2018
Recently Supernova 2006gy was noted as the most luminous ever recorded, with a total radiated energy of -10(44) Joules. It was proposed that the progenitor may have been a massive evolved star similar to n Carinae, which resides in our own galaxy at a ...
Thomas, Brian C., Melott, Adrian L., Fields, Brian D., and Anthony-Twarog, Barbara J.
core  

Light element production in the big bang and the synthesis of heavy elements in 3D MHD jets from core-collapse supernovae [PDF]

, 2013
In this dissertation we present the main features of a new nuclear reaction network evolution code. This new code allows nucleosynthesis calculations for large numbers of nuclides.
Winteler, Christian
core   +1 more source

Strong Progenitor Age Bias in Supernova Cosmology and Alignment with DESI BAO

Universe
Supernova (SN) cosmology is based on the assumption that the luminosity of type Ia SNe, after the luminosity standardization process, remains invariant with progenitor age.
Chul Chung, Young-Wook Lee, Junhyuk Son, Seunghyun Park, Hyejeon Cho   +4 more
doaj   +1 more source

EXPLOSIVE NUCLEOSYNTHESIS AT STRONG STELLAR MAGNETIZATION

Odessa Astronomical Publications, 2014
Synthesis of iron group nuclides is considered for the ultra-magnetized astrophysical plasma in supernovae. Magnetic modification of nuclear structure is shown to shift maximum of nucleosynthesis products towards smaller mass numbers enhancing titanium ...
V. N. Kondratyev, Yu. V. Korovina
doaj   +1 more source

Spectra of High-Redshift Type Ia Supernovae and a Comparison with their Low-Redshift Counterparts

, 2005
Accepted for publication in AJ. Also available at http://supernova.lbl.gov/We present spectra for 14 high-redshift (0.17 < z < 0.83) supernovae, which were discovered by the Supernova Cosmology Project as part of a campaign to measure cosmological ...
Nobili, S., Thomas, R. C., Amanullah, R., Garavini, G., Kowalski, M., Goldhaber, G., Wang, L., Wood-Vasey, W. M., Stanishev, V., Fabbro, S., Lidman, C., Aldering, G., Ellis, R., Nugent, P. E., Hook, I. M., Smith, E., Perlmutter, S., Conley, A., Spadafora, A. L., Deustua, S. E., Gibbons, R., Groom, D. E., Schaefer, B. E., Ruiz-Lapuente, P., Pain, R., Pennypacker, C. R., Burns, M. S., Fadeyev, V., Sainton, G., Kim, A. G., Walton, N. A., Howell, D. A., Goobar, A., Knop, R. A., Folatelli, G.   +34 more
core   +1 more source

Multiwavelength View of Circumstellar Interaction in Supernovae

Universe
The interaction of post-explosion supernova ejecta with the surrounding circumstellar medium creates emissions across the electromagnetic spectrum. Since the circumstellar medium is created by the mass lost from the progenitor star, it carries tell-tale ...
Poonam Chandra
doaj   +1 more source

Cosmic ray contributions from rapidly rotating stellar mass black holes: cosmic Ray GeV to EeV proton and anti-proton sources

Frontiers in Astronomy and Space Sciences
In Radio Super Novae (RSNe) a magnetic field of (B × r) = 1016.0±0.12 Gauss × cm is observed; these are the same numbers for Blue Super Giant (BSG) star explosions as for Red Super Giant (RSG) star explosions, despite their very different wind properties.
M. Allen, P. L. Biermann, P. L. Biermann, A. Chieffi, R. Chini, R. Chini, R. Chini, D. Frekers, L. Gergely, L. Gergely, Gopal-Krishna, B. Harms, I. Jaroschewski, P. S. Joshi, P. P. Kronberg, E. Kun, A. Meli, A. Meli, E.-S. Seo, T. Stanev   +19 more
doaj   +1 more source

Turbulence-Flame Interaction on the Early Evolution of Flames in Type Ia Supernovae

, 2011
Type Ia supernovae are bright stellar explosions thought to occur when a runaway thermonuclear reaction incinerates a compact star known as white dwarf (WD).
Jackson, Aaron P., Chamulak, David A., Townsley, Dean M., Timmes, F.X., Calder, Alan C., Brown, Edward F.   +5 more
core  

Supernovae

, 2003
This course reviews our present knowledge about the physical processes behind the supernovae explosions, stressing the difficulties encountered in the quest to describe the latter ...
R. Schaeffer
core   +1 more source

The interaction of Type Ia supernovae with their circumstellar medium [PDF]

, 2013
This thesis is focused on the study of a specific class of supernovae, named Type Ia (or thermonuclear) supernovae. In particular, we attempt to gain information about their origin through the study of the interaction of these supernovae with ...
Chiotellis, A.
core   +2 more sources