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Date and Time of the Query: 2019-07-19 T23:16:05 PDT
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For refcode 2003ApJ...584L..87T:
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Copyright by American Astronomical Society. Reproduced by permission
2003ApJ...584L..87T Relics of Subluminous Supernovae in Metal-poor Stars Takuji Tsujimoto and Toshikazu Shigeyama Received 2002 October 1; accepted 2003 January 10; published 2003 January 17 ABSTRACT The unique elemental abundance pattern of the carbon-rich stars CS 29498-043 and CS 22949-037 is characterized by a large excess of magnesium and silicon in comparison with iron. This excess is investigated in the context of a supernova-induced star formation scenario, and it is concluded that these stars were born from the matter swept up by supernova remnants containing little iron and that such supernovae are similar to the least luminous supernovae ever observed, SNe 1997D and 1999br. Comparison of the observed abundance pattern in iron group elements of subluminous supernovae with those of other supernovae leads to intriguing implications for explosion, nucleosynthesis, and mixing in supernovae. The observed invariance of these ratios cannot be accounted for by a spherically symmetric supernova model. Subject headings: nuclear reactions, nucleosynthesis, abundances - stars: abundances - stars: individual (CS 22949-037, CS 29498-043) - supernovae: general - supernovae: individual (SN 1997D, SN 1999br)
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