论文标题
重新访问低亮度II型超新星的祖先，SN 2008BK
Revisiting the progenitor of the low-luminosity type II-plateau supernova, SN 2008bk
论文作者
论文摘要
对红色超级巨头的更新模型气氛的可用性以及单个和二进制恒星进化模型的改进以及以前未发布的数据促使我们重新审视了低亮度II-Plateau Supernova的祖细胞，SN 2008BK。使用MID-IR数据与灰尘模型结合使用，我们发现高温（4250-4500 K），高灭绝（E（B-V）> 0.7）溶液与数据不兼容。因此，我们赞成具有log（l/lsun）亮度〜4.53的凉爽（〜3500-3700 K）祖细胞。与进化轨道相比，我们推断出8-10 MSUN范围内的祖细胞质量与以前的一些研究一致。该质量与观察到的低亮度型IIP SNE的模式一致，来自下极端极端物的RSG爆炸，以造成核心爆发。我们还介绍了祖细胞的多上述数据，但找不到可变性的明确证据。
The availability of updated model atmospheres for red supergiants and improvements in single and binary stellar evolution models, as well as previously unpublished data prompted us to revisit the progenitor of low-luminosity type II-Plateau supernova, SN 2008bk. Using mid-IR data in combination with dust models, we find that high temperature (4250-4500 K), high extinction (E(B-V)>0.7) solutions are incompatible with the data. We therefore favour a cool (~3500-3700 K) progenitor with a luminosity of log(L/Lsun)~4.53. Comparing with evolutionary tracks, we infer progenitor masses in the 8-10 Msun range in agreement with some previous studies. This mass is consistent with the observed pattern of low-luminosity Type IIP SNe coming from the explosion of RSGs at the lower extremum for core-collapse. We also present multi-epoch data of the progenitor, but do not find clear evidence of variability.
