A reconnaissance of the possible donor stars to the Kepler supernova
The identity of Type Ia supernova progenitors remains a mystery, with various lines of evidence pointing toward either accretion from a nondegenerate companion or the rapid merger of two degenerate stars leading to the thermonuclear destruction of a white dwarf. In this paper, we spectroscopically scrutinize 24 of the brightest stars residing in the central 38″ × 38″ of the SN 1604 (Kepler) supernova remnant to search for a possible surviving companion star. We can rule out, with high...[Show more]
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|Source:||Astrophysical Journal, The|
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