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arXiv 2602.23673astro-ph.HEastro-ph.GAastro-ph.SR
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中红外亮尘埃超新星的环境依赖性

The environmental dependence of mid-IR luminous dusty Supernovae

Hebei University(河北大学);Institute of Space Sciences (ICE, CSIC)(空间科学研究所(ICE,CSIC));University of Szeged(塞格德大学);Space Telescope Science Institute(太空望远镜科学研究所);Carnegie Mellon University(卡内基梅隆大学)

Lin Xiao, Zeyue Peng, Lluis Galbany, Tamas Szalai, Ori D. Fox, Lei Hu, Maokai Hu, Thallis Pessi, Yi Yang, Takashi J. Moriya, Zhanwen Han, Xiaofeng Wang, Shengyu Yan

AI总结:

研究发现尘埃超新星的环境特性与典型超新星不同,其尘埃生成过程可能不受金属licity和宿主环境影响。

摘要:

利用斯皮策和wise图像,我们发现了42个中红外亮尘埃超新星,这些超新星具有本地积分光谱数据。观测到的中红外发射表明存在新形成的尘埃,或由超新星或周围星际介质相互作用加热的原有尘埃。我们对超新星宿主环境及其尘埃特性进行了系统分析,以了解尘埃遮蔽的爆炸恒星,并确定这种强烈尘埃生成过程是否与其本地环境有关。我们发现尘埃超新星更倾向于位于EW(Hα)较高、金属licity较低、宿主消光较重的区域,与典型SN类型相比。它们在EW(Hα)和氧丰度值上表现出相同的增加序列,从氢丰富、IIn型和氢贫乏的尘埃超新星。不同尘埃SN类型的环境特性差异表明其前身的多样性。我们还发现一个边缘相关性是SN尘埃质量与恒星形成率之间的负相关性。这意味着在恒星形成率较低的区域,超新星会更中红外亮且更尘埃丰富。然而,SN尘埃质量与金属licity和宿主消光没有相关性,这些被认为是影响前身质量损失历史和SN周围环境的关键因素。因此,超新星中的尘埃形成过程可能对金属licity和宿主环境的尘埃状况不敏感。

英文摘要:

Using the Spitzer and WISE images, we discovered 42 mid-IR luminous dusty supernovae with local integral-field spectroscopy data. The observed mid-IR emission indicates the presence of newly formed dust, or pre-existing dust heated by the radiation from the supernovae or circumstellar medium interactions. We carried out a systematic analysis of the supernova host environments and their dust properties, for understanding the dust-veiled exploding stars, and whether such an intense dust production process is associated with their local environments. We find that dusty supernovae prefer the locations with higher EW(Hα), lower metallicity, and heavier host extinctions compared to typical SN types, and they show the same increasing sequence in the values of EW(Hα) and oxygen abundance from hydrogen-rich, type IIn and hydrogen-poor dusty supernovae. These differences in environmental properties of different dusty SN types indicate the diversity of their progenitors. We also found that one marginal correlation is a negative correlation between the SN dust mass and star formation rate. This means that SNe would be more mid-IR luminous and more dust-rich at the region with lower star formation rate. However, the SN dust mass show no correlation with the metallicity and the host extinction, which were thought to be key factors affecting the mass-loss history of progenitors and the CSM environment of SNe. Therefore, the dust formation process in SNe might be insensitive to metallicity and the dust condition of their host environments.

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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