Results 31 to 40 of about 695 (169)
SN 2021dbg: A Luminous Type IIP–IIL Supernova Exploding from a Massive Star with a Layered Shell
The Astrophysical JournalWe present extensive observations and analysis of supernova (SN) SN 2021dbg, utilizing optical photometry and spectroscopy. For approximately 385 days following the explosion, SN 2021dbg exhibited remarkable luminosity, surpassing most Type II SNe (SNe ...
Zeyi Zhao +11 more
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Type-II supernovae and neutrino magnetic moments [PDF]
Astroparticle Physics, 1999 11 pages, 5 figures, latex file, final version, references ...
Nunokawa, Hiroshi +2 more
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Dust formation in primordial Type II supernovae [PDF]
Monthly Notices of the Royal Astronomical Society, 2001 11 pages, LaTeX, 11 figures, MNRAS ...
Todini, Paolo, Ferrara, Andrea
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The Astrophysical JournalWe present James Webb Space Telescope (JWST) Near-Infrared Spectrograph observations of SN 2024ggi, spanning wavelengths of 1.7–5.5 μ m at +285.51 and +385.27 days postexplosion.
T. Mera +22 more
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The Prevalence and Influence of Circumstellar Material around Hydrogen-rich Supernova Progenitors
The Astrophysical Journal, 2023 Narrow transient emission lines (flash-ionization features) in early supernova (SN) spectra trace the presence of circumstellar material (CSM) around the massive progenitor stars of core-collapse SNe.
Rachel J. Bruch +47 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.
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The Astrophysical Journal, 1985 In this paper we exploit the fact that the collapsing core of a massive star, at the endpoint of its thermonuclear life, rapidly becomes hydrostatic after bouncing at nuclear densities. The energy transferred by pdV work from the inner unshocked core as it becomes hydrostatic to the bounce shock in the outer core is, to a good approximation, the ...
J. M. Lattimer, A. Burrows, A. Yahil
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Long Plateau Doth So: How Internal Heating Sources Affect Hydrogen-rich Supernova Light Curves
The Astrophysical JournalSome hydrogen-rich core-collapse supernovae (SNeIIP) exhibit evidence of a sustained energy source powering their light curves, resulting in a brighter and/or longer-lasting hydrogen recombination plateau phase.
Tatsuya Matsumoto +2 more
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ON THE INTRINSIC DIVERSITY OF TYPE II-PLATEAU SUPERNOVAE [PDF]
The Astrophysical Journal, 2015 8 pages, 5 figures, accepted to ...
Pejcha, Ondrej, Prieto, Jose L.
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SN 2019tua: A Type IIb Supernova with Multiple Bumps in the Light Curves
The Astrophysical JournalWe present photometric and spectroscopic observations and analysis of the Type IIb supernova (SN) SN 2019tua, which exhibits multiple bumps in its declining light curves between 40 and 65 days after discovery.
Xin-Bo Huang +11 more
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