论文标题
蓝色大振幅脉动器:IA型超新星可能幸存的伴侣
Blue Large-Amplitude Pulsators: the Possible Surviving Companions of Type Ia Supernovae
论文作者
论文摘要
单个脱位(SD)模型是IA型超新星(SNE IA)祖细胞的主要模型之一,它预测,应该有二元同伴在绝对中可以在银河系中检测到的超新星爆炸。因此,发现这种尚存的同伴可以为SD模型提供结论性的支持。几年前,发现了一种新型的神秘变量,即所谓的蓝色大振幅脉动器(BLAPS)。在这里,我们表明,与其他提议的渠道相比,如果它们确实是这种幸存的伴侣,则可以合理地再现了所有空白的特性。这表明,空白可能是长期以来尚存的IA的同伴。我们的模型还预测了一个新的通道,用于形成单个热点恒星,这与当前热量沃尔夫星样品中的一小组一致。
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 variables 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 hot-subdwarf-star sample.