Results 111 to 120 of about 8,434 (211)
Fast radio bursts as standard candles for cosmology
Recently, fast radio bursts (FRBs) have become a thriving field in astronomy and cosmology. Due to their extragalactic and cosmological origin, they are useful to study the cosmic expansion and the intergalactic medium (IGM).
Han-Yue Guo, Hao Wei
doaj +1 more source
Core-Collapse Supernovae and Host Galaxy Stellar Populations
We have used images and spectra of the Sloan Digital Sky Survey to examine the host galaxies of 519 nearby supernovae. The colors at the sites of the explosions, as well as chemical abundances, and specific star formation rates of the host galaxies ...
Aldering +75 more
core +1 more source
Multifilter UV to Near-infrared Data-driven Light-curve Templates for Stripped-envelope Supernovae
While the spectroscopic classification scheme for stripped-envelope supernovae (SESNe) is clear, and we know that they originate from massive stars that lost some or all of their envelopes of hydrogen and helium, the photometric evolution of classes ...
Somayeh Khakpash +6 more
doaj +1 more source
SN 2023zaw: An Ultrastripped, Nickel-poor Supernova from a Low-mass Progenitor
We present SN 2023zaw—a subluminous ( M _r = −16.7 mag) and rapidly evolving supernova ( t _1/2, _r = 4.9 days), with the lowest nickel mass (≈0.002 M _⊙ ) measured among all stripped-envelope supernovae discovered to date.
Kaustav K. Das +36 more
doaj +1 more source
Modeling of Radio Supernovae: Including the Effects of Inhomogeneities and Radiative Cooling
The presence of inhomogeneities in a spatially unresolved source is often hard to establish. This limits the accuracy with which the source properties can be determined.
C.-I. Björnsson
doaj +1 more source
Classifications of the Host Galaxies of Supernovae
Classifications on the DDO system are given for the host galaxies of 177 supernovae (SNe) that have been discovered since 1997 during the course of the Lick Observatory Supernova Search with the Katzman Automatic Imaging Telescope.
Alexei V. Filippenko +5 more
core +2 more sources
A binary progenitor for the Type Ib Supernova iPTF13bvn [PDF]
AbstractThe recent detection in archival HST images of an object at the the location of supernova (SN) iPTF13bvn may represent the first direct evidence of the progenitor of a Type Ib SN. The object's photometry was found to be compatible with a Wolf-Rayet pre-SN star mass of ≈ 11 M⊙.
openaire +1 more source
Hydrogen-rich to stripped-envelope: observational continuity and biases in CCSNe
Although historically classified into discrete subclasses, there is growing evidence that indicates that core-collapse supernovae (CCSNe) categories often overlap, reflecting continuous variations in progenitor structure, mass-loss history, and ...
Anjasha Gangopadhyay +2 more
doaj +1 more source
Long Gamma-Ray Bursts and Type Ic Core Collapse Supernovae Have Similar Locations in Hosts
When the afterglow fades at the site of a long-duration gamma-ray burst (LGRB), Type Ic supernovae (SN Ic) are the only type of core collapse supernova observed. Recent work found that a sample of LGRB in high-redshift galaxies had different environments
Benetti S. +6 more
core +2 more sources

