arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1504.01205astro-ph.SRastro-ph.HE
收藏

Ib/c型超新星起源演化模型

Evolutionary Models for Type Ib/c Supernova Progenitors

Sung-Chul Yoon

摘要:

Ib/c型超新星(SNe Ib/c)标志着缺氢大质量恒星的死亡。SNe Ib/c祖先的演化情景涉及许多重要的物理过程,包括风引起的质量损失及其金属丰度依赖性、恒星自转和双星相互作用。这使得SNe Ib/c成为恒星演化理论的一个极好的试验平台。我们回顾了文献中SN Ib/c祖细胞进化模型的主要结果及其与最近观察的对抗。我们认为,SN Ib/c祖细胞的性质可以显着不同的单和二进制系统,和二进制演化模型可以解释喷出物的质量来自SN Ib/c光变曲线,SN Ib/c网站在其宿主星系的分布,和光学幅度的暂定祖候选人的iPTF 13 bvn。我们强调的重要性,早期观测的光变曲线和光谱,准确测量的氦质量在SN Ib/c喷出物,和系统的研究SN Ib/c属性的金属丰度依赖,以更好地约束理论。

英文摘要:

Type Ib/c supernovae (SNe Ib/c) mark the deaths of hydrogen-deficient massive stars. The evolutionary scenarios for SNe Ib/c progenitors involve many important physical processes including mass loss by winds and its metallicity dependence, stellar rotation, and binary interactions. This makes SNe Ib/c an excellent test bed for stellar evolution theory. We review the main results of evolutionary models for SN Ib/c progenitors available in the literature and their confrontation with recent observations. We argue that the nature of SN Ib/c progenitors can be significantly different for single and binary systems, and that binary evolution models can explain the ejecta masses derived from SN Ib/c light curves, the distribution of SN Ib/c sites in their host galaxies, and the optical magnitudes of the tentative progenitor candidate of iPTF13bvn. We emphasize the importance of early-time observations of light curves and spectra, accurate measurements of helium mass in SN Ib/c ejecta, and systematic studies about the metallicity dependence of SN Ib/c properties, to better constrain theories.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑