Results 21 to 30 of about 8,434 (211)
On Core Collapse Supernovae in Normal and in Seyfert Galaxies [PDF]
, 2002 This paper estimates the relative frequency of different types of core-collapse supernovae, in terms of the ratio f between the number of type Ib--Ic and of type II supernovae.
Bressan, A. +2 more
core +2 more sources
Molecular Ecology Resources, Volume 21, Issue 1, Page 263-286, January 2021., 2021 Abstract Genome assemblies are currently being produced at an impressive rate by consortia and individual laboratories. The low costs and increasing efficiency of sequencing technologies now enable assembling genomes at unprecedented quality and contiguity.
Valentina Peona +11 more
wiley +1 more source
Evidence Against an Association Between Gamma-Ray Bursts and Type I Supernovae [PDF]
, 1998 We present a rigorous method, based on Bayesian inference, for calculating the odds favoring the hypothesis that any particular class of astronomical transients produce gamma-ray bursts over the hypothesis that they do not. We then apply this method to a
Graziani, C., Lamb, D. Q., Marion, G. H.
core +4 more sources
The Environments of Type Ib/c Supernovae [PDF]
Symposium - International Astronomical Union, 1996 Up to about 1985, supernovae (SNe) generally were placed into the two Minkowski classes, type I and type II, defined by the absence or presence, respectively, of hydrogen in their optical spectra. Around that time it was acknowledged that several type I SNe were systematically peculiar, both spectroscopically and photometrically (Elias et al.
S. D. Van Dyk +2 more
openaire +1 more source
Absolute-Magnitude Distributions and Light Curves of Stripped-Envelope Supernovae [PDF]
, 2006 The absolute visual magnitudes of three Type IIb, 11 Type Ib and 13 Type Ic supernovae (collectively known as stripped-envelope supernovae) are studied by collecting data on the apparent magnitude, distance, and interstellar extinction of each event ...
Barbon R. +14 more
core +4 more sources
Possible binary progenitors for the Type Ib supernova iPTF13bvn [PDF]
Monthly Notices of the Royal Astronomical Society, 2014 8 pages, 2 figures, Submitted to MNRAS, comment ...
Eldridge, J.J. +3 more
openaire +5 more sources
Branching ratio of Type Ib/c supernovae into GRB-supernovae [PDF]
The Astrophysical Journal, 2004 to appear in ApJ ...
openaire +3 more sources
He Abundance of Dense Circumstellar Clumps in the Cassiopeia A Supernova Remnant
The Astrophysical Journal, 2023 We report on the result of He abundance analysis of dense circumstellar clumps in the young supernova remnant Cassiopeia A. These clumps, which are called quasi-sta tionary flocculi (QSFs), are known from previous optical studies to be enriched in He ...
Bon-Chul Koo +3 more
doaj +1 more source
Observed and Physical Properties of Core-Collapse Supernovae [PDF]
, 2002 I use photometry and spectroscopy data for 24 Type II plateau supernovae to examine their observed and physical properties. This dataset shows that these objects encompass a wide range of ~5 mag in their plateau luminosities, their expansion velocities ...
Barbon R. +14 more
core +2 more sources
Hydrogen and helium traces in type Ib-c supernovae [PDF]
Astronomy & Astrophysics, 2006 26 pages, 37 figures, 2 tables.
Elmhamdi, A. +5 more
openaire +2 more sources