Results 11 to 20 of about 48,520 (216)
Recent Type II Radio Supernovae
AIP Conference Proceedings, 2007 We present the results of radio observations, taken primarily with the Very Large Array, of Supernovae 1993J, 2001gd, 2001em, 2002hh, 2004dj, and 2004et. We have fit a parameterized model to the multi-frequency observations of each supernova. We compare the observed and derived radio properties of these supernovae by optical classification and discuss ...
C. J. Stockdale +9 more
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Optical observations of Type II supernovae
AIP Conference Proceedings, 2000 18 pages, 10 embedded figures, latex with aipproc style file included, to appear in "Cosmic Explosions" -- eds. S. Holt and W. W.
Filippenko, A. V.
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SNe heating and the chemical evolution of the intra-cluster medium [PDF]
, 2002 We compute the chemical and thermal history of the intra-cluster medium in rich and poor clusters under the assumption that supernovae (I, II) are the major responsible both for the chemical enrichment and the heating of the intra-cluster gas.
Andrea Biviano +85 more
core +2 more sources
The 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
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SN 2018gk Revisited: the Photosphere, the Central Engine, and the Putative Dust
The Astrophysical Journal, 2023 We perform a comprehensive study of the physical properties of SN 2018gk, which is a luminous Type IIb supernova (SN). We find that the early-time photospheric velocity varies from a larger value to a smaller one before the photosphere reaches a ...
Tao Wang +3 more
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SN 2019hcc: a Type II supernova displaying early O
Monthly Notices of the Royal Astronomical Society, 2021 ABSTRACT We present optical spectroscopy together with ultraviolet, optical, and near-infrared photometry of SN 2019hcc, which resides in a host galaxy at redshift 0.044, displaying a sub-solar metallicity. The supernova spectrum near peak epoch shows a ‘w’ shape at around 4000 Å which is usually associated with O ii lines and is typical
Eleonora Parrag +20 more
openaire +7 more sources
JWST Imaging of the Cartwheel Galaxy Reveals Dust Associated with SN 2021afdx
The Astrophysical Journal Letters, 2023 We present near- and mid-infrared (0.9–18 μ m) photometry of supernova (SN) 2021afdx, which was imaged serendipitously with the James Webb Space Telescope (JWST) as part of its Early Release Observations of the Cartwheel Galaxy.
Griffin Hosseinzadeh +14 more
doaj +1 more source
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
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The Astrophysical Journal, 2023 We present photometric and spectroscopic data of SN 2018lab, a low-luminosity Type IIP supernova (LLSN) with a V -band peak luminosity of −15.1 ± 0.1 mag.
Jeniveve Pearson +23 more
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Type II Supernovae as Standardized Candles [PDF]
, 2002 We present evidence for a correlation between expansion velocities of the ejecta of Type II plateau supernovae and their bolometric luminosities during the plateau phase. This correlation permits one to standardize the candles and decrease the scatter in
Barbon R. +4 more
core +3 more sources