PISN 2018ibb: Radioactive Emission of [O III] Lines

IF 1.1 4区物理与天体物理 Q3 ASTRONOMY & ASTROPHYSICS

Astronomy Letters-A Journal of Astronomy and Space Astrophysics Pub Date : 2025-03-25 DOI:10.1134/S106377372570001X

N. N. Chugai

引用次数: 0

Abstract

Supernova 2018ibb of the PISN category, related to the dynamical instability of oxygen core in a supermassive star induced by pair-creation shows at the nebular stage strong [O III] emission lines of an uncertain origin. I propose a simple model that demonstrates a possibility of [O III] lines emission from the supernova oxygen matter ionized and heated by the \({}^{56}\)Co radioactive decay. The reason is pinpointed by which the [O III] line luminosity among supernovae of PISN category can vary in a broad range.

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PISN 2018ibb: [O III]谱线的放射性发射

PISN类超新星2018ibb，与一对形成引起的超大质量恒星中氧核的动力学不稳定性有关，在星云阶段显示出来源不确定的强[O III]发射线。我提出了一个简单的模型，证明了超新星氧物质电离并被\({}^{56}\) Co放射性衰变加热的[O III]线发射的可能性。PISN类超新星的[O III]线光度可以在一个较大的范围内变化，从而明确了其原因。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Astronomy Letters-A Journal of Astronomy and Space Astrophysics 地学天文-天文与天体物理

CiteScore

1.70

自引率

22.20%

发文量

审稿时长

6-12 weeks

期刊介绍： Astronomy Letters is an international peer reviewed journal that publishes the results of original research on all aspects of modern astronomy and astrophysics including high energy astrophysics, cosmology, space astronomy, theoretical astrophysics, radio astronomy, extragalactic astronomy, stellar astronomy, and investigation of the Solar system.