通过Ia超新星原生体在寄主星系盘中的位置对其进行约束

IF 1.1 4区物理与天体物理 Q3 ASTRONOMY & ASTROPHYSICS Astronomy Reports Pub Date : 2024-02-25 DOI:10.1134/S1063772923140081

A. A. Hakobyan, A. G. Karapetyan, L. V. Barkhudaryan

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引用次数: 0

摘要

摘要在导致Ia型超新星（SNe Ia）的各种原生渠道中，有一些爆炸源自质量低于钱德拉塞卡的白矮星。这些白矮星的氦壳由伴星吸积的原爆引发爆炸。双引爆模型预言了原生星系统的年龄与近峰值亮度之间的相关性：爆炸原生星越年轻，SNe 就越亮。在本文中，我们介绍了我们最近在研究SNe Ia在宿主星系盘内不同位置的特性以及估计其原生星群年龄方面取得的成果。通过观测，我们证实了所预期的SN光度测量与其祖先年龄之间相关性的有效性。

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Constraining Supernova Ia Progenitors by Their Locations in Host Galactic Discs

Among the diverse progenitor channels leading to Type Ia Supernovae (SNe Ia), there are explosions originating from white dwarfs with sub-Chandrasekhar masses. These white dwarfs undergo detonation and explosion triggered by primary detonation in the helium shell, which has been accreted from a companion star. The double-detonation model predicts a correlation between the age of the progenitor system and the near peak brightness: the younger the exploding progenitors, the brighter the SNe. In this paper, we present our recent achievements on the study of SNe Ia properties in different locations within host galactic discs and the estimation of their progenitor population ages. Observationally, we confirm the validity of the anticipated correlation between the SN photometry and the age of their progenitors.

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来源期刊

Astronomy Reports 地学天文-天文与天体物理

CiteScore

1.40

自引率

20.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Astronomy Reports is an international peer reviewed journal that publishes original papers on astronomical topics, including theoretical and observational astrophysics, physics of the Sun, planetary astrophysics, radio astronomy, stellar astronomy, celestial mechanics, and astronomy methods and instrumentation.