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Nucleosynthesis in type II supernovae [PDF]

open access: greenNuclear Physics A, 1997
Presupernova evolution and explosive nucleosynthesis in massive stars for main-sequence masses from 13 $M_\odot$ to 70 $M_\odot$ are calculated. We examine the dependence of the supernova yields on the stellar mass, $^{12}C(\alpha, \gamma) ^{16}O}$ rate,
K. Nomoto   +6 more
core   +6 more sources

Peculiar Type II supernovae from blue supergiants [PDF]

open access: green, 2011
The vast majority of Type II supernovae (SNe) are produced by red supergiants (RSGs), but SN 1987A revealed that blue supergiants (BSGs) can produce members of this class as well, albeit with some peculiar properties.
I. K. W. Kleiser   +12 more
openalex   +4 more sources

The quiescent progenitors of four Type II-P/L supernovae [PDF]

open access: bronze, 2018
We present Large Binocular Telescope difference imaging data for the final years of four Type II-P/L supernovae progenitors. For all four, we find no significant evidence for stochastic or steady variability in the U, B, V, or R-bands.
Samson A. Johnson   +2 more
openalex   +6 more sources

Binary progenitor systems for Type Ic supernovae [PDF]

open access: yesNature Communications
Core-collapse supernovae are explosions of massive stars at the end of their evolution. They are responsible for metal production and for halting star formation, having a significant impact on galaxy evolution.
Martín Solar   +20 more
doaj   +2 more sources

Type II Supernovae as Probes of Cosmology [PDF]

open access: green, 2009
- Constraining the cosmological parameters and understanding Dark Energy have tremendous implications for the nature of the Universe and its physical laws.
D. Poznanski   +28 more
openalex   +3 more sources

The Iron Yield of Core-collapse Supernovae

open access: yesThe Astrophysical Journal, 2023
We present a systematic analysis of 191 stripped-envelope supernovae (SE SNe), aimed at computing their ^56 Ni masses from the luminosity in their radioactive tails ( ${M}_{\mathrm{Ni}}^{\mathrm{tail}}$ ) and/or in their maximum light, and the mean ^56 ...
Ósmar Rodríguez, Dan Maoz, Ehud Nakar
doaj   +1 more source

Possible Detection of the Progenitor of the Type II Supernova SN 2023ixf

open access: yesThe Astrophysical Journal Letters, 2023
Stellar evolution theory predicts multiple pathways to the explosive deaths of stars as supernovae. Locating and characterizing the progenitors of well-studied supernovae is important to constrain the theory and to justify and design future surveys to ...
Joanne L Pledger, Michael M Shara
doaj   +1 more source

Comparing the Locations of Supernovae to CO (2–1) Emission in Their Host Galaxies

open access: yesThe Astrophysical Journal, 2023
We measure the molecular gas environment near recent (
Ness Mayker Chen   +21 more
doaj   +1 more source

The Effects of Thomson Scattering and Chemical Mixing on Early-time Light Curves of Double-peaked Type IIb Supernovae

open access: yesThe Astrophysical Journal, 2023
Previous numerical simulations of double-peaked Type IIb supernova (SN IIb) light curves have demonstrated that the radius and mass of the hydrogen-rich envelope of the progenitor star can significantly influence the brightness and timescale of the early-
Seong Hyun Park   +2 more
doaj   +1 more source

Inferencing Progenitor and Explosion Properties of Evolving Core-collapse Supernovae from Zwicky Transient Facility Light Curves

open access: yesThe Astrophysical Journal, 2023
We analyze a sample of 45 Type II supernovae from the Zwicky Transient Facility public survey using a grid of hydrodynamical models in order to assess whether theoretically driven forecasts can intelligently guide follow-up observations supporting all ...
Bhagya M. Subrayan   +11 more
doaj   +1 more source

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