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arXiv 2302.05124astro-ph.SRastro-ph.HE
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旋转25 M $_{\odot}$星族III的演化:物理性质和产生的超新星

Evolution of Rotating 25 M$_{\odot}$ Population III star: Physical Properties and Resulting Supernovae

Amar Aryan, Shashi Bhushan Pandey, Rahul Gupta, Amit Kumar Ror

摘要:

在这封信中,我们报告的1-D建模的旋转25 M $_{\odot}$零年龄主序人口III星的核心崩溃的发病阶段的结果。快速旋转的模型在主序星阶段之后显示出剧烈和零星的质量损失。与太阳金属丰度模型相比,Pop III模型显示出非常小的超新星前半径。此外,在核心崩溃的发病阶段的模型,我们模拟由此产生的超新星的流体动力学模拟。根据相应的旋转和恒星风造成的质量损失,所产生的超新星跨越了从弱II型到Ib/c型的类别。我们发现,由Pop III型恒星产生的核心坍缩超新星的绝对星等比由太阳金属丰度恒星产生的要暗得多。从我们的模拟结果中,我们还得出结论,在爆炸能量和镍质量的考虑范围内,这些瞬态事件是非常微弱的,使得它们很难被检测到在高红移。

英文摘要:

In this Letter, we report the outcomes of 1-D modelling of a rotating 25 M$_{\odot}$ zero-age main-sequence Population III star up to the stage of the onset of core collapse. Rapidly rotating models display violent and sporadic mass losses after the Main-Sequence stage. In comparison to the solar metallicity model, Pop III models show very small pre-supernova radii. Further, with models at the stage of the onset of core collapse, we simulate the hydrodynamic simulations of resulting supernovae. Depending upon the mass losses due to corresponding rotations and stellar winds, the resulting supernovae span a class from weak Type II to Type Ib/c. We find that the absolute magnitudes of the core-collapse supernovae resulting from Pop III stars are much fainter than that resulting from a solar metallicity star. From our simulation results, we also conclude that within the considered limits of explosion energies and Nickel masses, these transient events are very faint, making it difficult for them to be detected at high redshifts.

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。

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