Blue Large-amplitude Pulsators: The Possible Surviving Companions of Type Ia Supernovae
Blue Large-amplitude Pulsators: The Possible Surviving Companions of Type Ia Supernovae
复制标题
蓝色大振幅脉动器:Ia 型超新星可能幸存的伴星
DOI:
10.3847/1538-4357/abbb8e
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发表时间:
2020-09
期刊:
影响因子:
--
通讯作者:
李蛟
中科院分区:
文献类型:
--
作者:
孟祥存;韩占文;Philipp Podsiadlowski;李蛟
The single degenerate (SD) model, one of the leading models for the progenitors of Type Ia supernovae (SNe Ia),.predicts that there should be binary companions that survive the supernova explosion, which, in principle, should.be detectable in the Galaxy. The discovery of such surviving companions could therefore provide conclusive.support for the SD model. Several years ago, a new type of mysterious variable was discovered, the so-called blue.large-amplitude pulsators (BLAPs). Here we show that all the properties of BLAPs can be reasonably well.reproduced if they are indeed such surviving companions, in contrast to other proposed channels. This suggests.that BLAPs could potentially be the long-sought surviving companions of SNe Ia. Our model also predicts a new.channel for forming single hot subdwarf stars, consistent with a small group in the present sample of hot subdwarf.stars.
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期刊:
The Astrophysical Journal Letters
影响因子:
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