Results 11 to 20 of about 695 (169)
Comparing the Locations of Supernovae to CO (2–1) Emission in Their Host Galaxies
The Astrophysical Journal, 2023 We measure the molecular gas environment near recent (
Ness Mayker Chen +21 more
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Cosmology with Type II supernovae [PDF]
International Journal of Modern Physics D, 2019 With the recent progresses on the Type II supernovae, we attempt to investigate whether there does exist new physics beyond the standard cosmological paradigm, i.e. the cosmological constant [Formula: see text] plus cold dark matter ([Formula: see text]CDM).
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Understanding Type II Supernovae [PDF]
International Astronomical Union Colloquium, 2005 SummaryWe present the results of a systematic analysis of a group of Type II plateau supernovae that span a large range in luminosities, from faint objects like SN 1997D and 1999br to very luminous events like SN 1992am. The physical properties of the supernovae appear to be related to the plateau luminosity or the expansion velocity.
Zampieri, L., Ramina, M., Pastorello, A.
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The Astrophysical Journal, 2023 Previous numerical simulations of double-peaked Type IIb supernova (SN IIb) light curves have demonstrated that the radius and mass of the hydrogen-rich envelope of the progenitor star can significantly influence the brightness and timescale of the early-
Seong Hyun Park +2 more
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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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Dynamics of Type-II Supernovae [PDF]
International Astronomical Union Colloquium, 1996 Hydrodynamical simulations of type-II supernovae in one and two dimensions are performed for the revival phase of the delayed shock by neutrino energy deposition. Starting with a post-collapse model of the 1.31 Mʘ iron core of a 15 Mʘ star immediately after the stagnation of the prompt shock about 10 ms after core bounce, the models are followed for ...
H.-TH. Janka, E. M. Müller
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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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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
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Type II Supernova Photospheres and the Distance to Supernova 1987A [PDF]
International Astronomical Union Colloquium, 1988 Among the many historic opportunities provided by the recent supernova in the LMC is that to improve our understanding of the physical conditions in the neighborhood of supernova photospheres, even though 1987A was initially characterized by radial and time scales smaller (by a factor 5–10) than “standard” more luminous SNII.
Manorama Chilukuri, Robert V. Wagoner
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