type Ic supernova

type Ic supernova

[¦tīp ‚wən ′sē ¦sü·pər¦nō·və]
(astronomy)
A member of a subclass of the type I supernovae that resemble type Ib supernovae closely but have a weak or absent line of neutral helium at 587.6 nanometers.
References in periodicals archive ?
A nearby star ended its life as a Type Ic supernova. Two teams of astronomers pored through the archive of Hubble images to uncover the putative precursor star in pre-explosion photos taken in 2007.
"We were fortunate that the supernova was nearby and very bright, about 5 to 10 times brighter than other Type Ic supernovas, which may have made the progenitor easier to find," said Charles Kilpatrick of the University of California, Santa Cruz, leader of the second team.
Expectations on the identity of the progenitors of Type Ic supernovas have been a puzzle.
Type Ic supernovas are just one class of exploding star.
Schmidt, "Gamma-ray bursts and type Ic supernova SN 1998bw," The Astrophysical Journal, vol.
Levesque et al., "Spectroscopic discovery of the broad-lined type Ic supernova 2010bh associated with the low-redshift GRB 100316D," https://arxiv.org/abs/ 1004.2262.
Soderberg et al., "SN 2009bb: a peculiar broad-lined Type Ic supernova," Astrophysical Journal, vol.
Huang et al., "Optical observations of the broad-lined type Ic supernova SN 2012ap," Research in Astronomy and Astrophysics, vol.
Maeda et al., "An asymmetric energetic type Ic supernova viewed off-axis, and a link to gamma ray bursts," Science, vol.
Wheeler, "Spectropolarimetry of the type Ic supernova SN 2002ap in M74: more evidence for asymmetric core collapse," Astrophysical Journal, vol.
On the other hand, the idea that every Type Ic supernova produces a gamma-ray burst, as proposed by Donald Q.
Lamb proposes that every Type Ic supernova produces a gamma-ray burst and a black hole.