Results 111 to 120 of about 8,434 (211)

Fast radio bursts as standard candles for cosmology

open access: yesPhysics Letters B
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

open access: yes, 2012
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

open access: yesThe Astrophysical Journal Supplement Series
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

ISEV2025 Abstract Book

open access: yes
Journal of Extracellular Vesicles, Volume 14, Issue S1, October 2025.
wiley   +1 more source

SN 2023zaw: An Ultrastripped, Nickel-poor Supernova from a Low-mass Progenitor

open access: yesThe Astrophysical Journal Letters
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

open access: yesThe Astrophysical Journal
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

open access: yes, 2002
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]

open access: yesProceedings of the International Astronomical Union, 2014
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

open access: yesFrontiers in Astronomy and Space Sciences
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

open access: yes, 2008
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

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