Results 41 to 50 of about 7,219,823 (215)
Searching for hydrogen in Type Ib supernovae, and for helium and hydrogen in Type Ic supernovae [PDF]
Symposium - International Astronomical Union, 2003 Identifying the progenitors of Type Ib and Type Ic supernovae requires knowing, among other things, whether SNe Ib eject hydrogen, and whether SNe Ic eject helium, and perhaps even hydrogen. Recently it has become clear that some SNe Ib do eject hydrogen, and it may be that all SNe Ib do.
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The ``Type IIb'' Supernova 1993J in M81: A Close Relative of Type Ib Supernovae
The Astrophysical Journal, 1993 Spectra of SN 1993J at three epochs within the first 1.5 months after the explosion reveal the onset of a remarkable transformation. The prominent Hα emission line visible at early times became progressively weaker as P Cygni features of He I gradually appeared; SN 1993J is therefore a hydrogen-poor, helium-rich Type IIb supernova. The progenitor of SN
Alexei V. Filippenko +2 more
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The rise and fall of the Type Ib supernova iPTF13bvn [PDF]
Astronomy and Astrophysics, 2014 7 pages, 6 figures.
C. Fremling +11 more
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Type Ia supernovae from sub-Chandrasekhar mass white dwarfs
, 2016 We argue that detonations of sub-Chandrasekhar mass white dwarfs can lead to bright explosions with light curves and spectra similar to those of observed Type Ia supernovae.
Ruiter, A. J. +7 more
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Evidence against an association between gamma-ray bursts and Type I supernovae
, 1999 We use 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.
G. H. Marion, D. Q. Lamb, C. Graziani
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Topics in Core-Collapse Supernova Theory: The Formation of Black Holes and the Transport of Neutrinos [PDF]
, 2012 Core-Collapse Supernovae are one of the most complex astrophysical systems in the universe. They deeply entwine aspects of physics and astrophysics that are rarely side by side in nature.
O'Connor, Evan Patrick
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SN 2014C: A Metamorphic Supernova Exploded in the Intricate and Hydrogen-rich Surroundings
The Astrophysical JournalWe present photometric and spectroscopic observations of supernova (SN) SN 2014C, primarily emphasizing the initial month after the explosion at approximately daily intervals.
Qian Zhai +8 more
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WHY NS AND BH MASS DISTRIBUTION IS BIMODAL?
Odessa Astronomical Publications, 2017 The observed mass distribution for the compact remnants of massive stars (neutron stars and black holes) and its relationship to possible mechanisms for the ejection of the envelopes of type II and Ib/c supernovae is analyzed.
M. E. Prokhorov, K. A. Postnov
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Dramatic Rebrightening of the Type-changing Stripped-envelope Supernova SN 2023aew
The Astrophysical JournalMultipeaked supernovae with precursors, dramatic light-curve rebrightenings, and spectral transformation are rare, but are being discovered in increasing numbers by modern night-sky transient surveys like the Zwicky Transient Facility.
Yashvi Sharma +35 more
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The type Ib supernova 1984L in NGC 991
The Astronomical Journal, 1989 SN 1984L in NGC 991 is a temporarily unique object for the Type Ib subclass of supernovae. It remains the only “fully” observed SN Ib to date, where “fully” means photometry and spectroscopy at early and late times.
Eric M. Schlegel, Robert P. Kirshner
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