SHORTEST RECURRENCE PERIODS OF NOVAE
SHORTEST RECURRENCE PERIODS OF NOVAE
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DOI:
10.1088/0004-637x/793/2/136
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发表时间:
2014-04
期刊:
影响因子:
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通讯作者:
M. Kato;H. Saio;I. Hachisu;K. Nomoto
中科院分区:
文献类型:
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作者:
M. Kato;H. Saio;I. Hachisu;K. Nomoto
Stimulated by the recent discovery of the 1 yr recurrence period nova M31N 2008-12a, we examined the shortest recurrence periods of hydrogen shell flashes on mass-accreting white dwarfs (WDs). We discuss the mechanism that yields a finite minimum recurrence period for a given WD mass. Calculating the unstable flashes for various WD masses and mass accretion rates, we identified a shortest recurrence period of about two months for a non-rotating 1.38 M☉ WD with a mass accretion rate of 3.6 × 10−7 M☉ yr−1. A 1 yr recurrence period is realized for very massive (≳ 1.3 M☉) WDs with very high accretion rates (≳ 1.5 × 10−7 M☉ yr−1). We revised our stability limit of hydrogen shell burning, which will be useful for binary evolution calculations toward Type Ia supernovae.