CONSTRAINING THE SPIN-DOWN TIMESCALE OF THE WHITE DWARF PROGENITORS OF TYPE Ia SUPERNOVAE

Journal Article · Sun Dec 01 00:00:00 EST 2013 · Astrophysical Journal Letters

DOI:https://doi.org/10.1088/2041-8205/778/2/L35· OSTI ID:22364117

Meng, Xiangcun ^[1]; Podsiadlowski, Philipp ^[2]

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1. School of Physics and Chemistry, Henan Polytechnic University, Jiaozuo 454000 (China)
2. Department of Astronomy, Oxford University, Oxford OX1 3RH (United Kingdom)

Justham and Di Stefano et al. proposed that the white dwarf progenitor of a Type Ia supernova (SN Ia) may have to spin down before it can explode. As the white dwarf spin-down timescale is not well known theoretically, here we try to constrain it empirically (within the framework of this spin-down model) for progenitor systems that contain a giant donor and for which circumbinary material has been detected after the explosion: we obtain an upper limit of a few 10{sup 7}yr. Based on the study of Di Stefano and Kilic, this means that it is too early to rule out the existence of a surviving companion in SNR 0509–67.5.

• OSTI ID: 22364117
• Journal Information: Astrophysical Journal Letters, Vol. 778, Issue 2; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 2041-8205
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ASTRONOMY
ASTROPHYSICS
EXPLOSIONS
SPIN
STAR EVOLUTION
STAR MODELS
SUPERNOVAE
WHITE DWARF STARS