Results 151 to 160 of about 32,797 (265)

Double “acct”: A Distinct Double-peaked Supernova Matching Pulsational Pair Instability Models

open access: yesThe Astrophysical Journal Letters
We present multiwavelength data of SN 2020acct, a double-peaked stripped-envelope supernova (SN) in NGC 2981 at ∼150 Mpc. The two peaks are temporally distinct, with maxima separated by 58 rest-frame days and a factor of 20 reduction in flux between. The
C. R. Angus   +37 more
doaj   +1 more source

Neutrinos and core-collapse supernovae

open access: yes, 2011
10 pages, 5 figures, Proceedings for the XIV International Workshop on "Neutrino Telescopes", March 15-18, 2011 ...
openaire   +3 more sources

Dramatic Rebrightening of the Type-changing Stripped-envelope Supernova SN 2023aew

open access: yesThe Astrophysical Journal
Multipeaked supernovae with precursors, dramatic light-curve rebrightenings, and spectral transformation are rare, but are being discovered in increasing numbers by modern night-sky transient surveys like the Zwicky Transient Facility.
Yashvi Sharma   +35 more
doaj   +1 more source

Calibration relations for core-collapse supernovae [PDF]

open access: yesMonthly Notices of the Royal Astronomical Society, 2013
PUMO, MARIA LETIZIA, Zampieri L.
openaire   +2 more sources

Neutrinos from core-collapse supernovae

open access: yes
The core of a massive star (M > 8 Msun) eventually collapses. This implosion usually triggers a supernova (SN) explosion that ejects most of the stellar envelope and leaves behind a neutron star (NS) with a mass of up to about 2 Msun. Sometimes the explosion fails and a black hole forms instead.
Raffelt, Georg G.   +2 more
openaire   +2 more sources

An Extended Closure Relation by LightGBM for Neutrino Radiation Transport in Core-collapse Supernovae

open access: yesThe Astrophysical Journal
We developed a machine learning model using LightGBM, one of the most popular gradient-boosting decision tree methods these days, to predict the Eddington tensor, or the second-order angular moment, for neutrino radiation transport in core-collapse ...
Shota Takahashi   +2 more
doaj   +1 more source

A metal-poor star with abundances from a pair-instability supernova. [PDF]

open access: yesNature, 2023
Xing QF   +9 more
europepmc   +1 more source

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