arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1803.02571astro-ph.HEastro-ph.SR
收藏

斯皮策超新星综合分析

A Comprehensive Analysis of Spitzer Supernovae

Tamás Szalai, Szanna Zsíros, Ori D. Fox, Ondřej Pejcha, Tomás Müller

摘要:

中红外波段为追踪超新星的晚期演化提供了几个优势。首先,SN光谱能量分布的峰值随着光球相位向长波长移动。其次,中红外观测受星际消光影响较小。第三,也许是最重要的,中红外线追踪尘埃的形成和在放射性喷出物成分消失后的后期(>100天)的星周相互作用。自2003年发射以来,斯皮策太空望远镜已经提供了大量的SNe中红外观测。已经有超过200个SNe被瞄准,但偶然发现的SNe甚至更多。在这里,我们提出了一个全面的研究结果的基础上档案斯皮策/IRAC图像的超过1100 SN的位置,从这个样本中,119 SNe的各种子类已被检测到,包括45 SNe与以前未发表的中红外测光。光度测量显示在某些情况下有大量的热尘埃。我们进行了深入的分析,以约束尘埃的起源和加热机制,并提出了由此产生的统计数据。

英文摘要:

The mid-infrared (mid-IR) wavelength regime offers several advantages for following the late-time evolution of supernovae (SNe). First, the peaks of the SN spectral energy distributions shift toward longer wavelengths following the photospheric phase. Second, mid-IR observations suffer less from effects of interstellar extinction. Third, and perhaps most important, the mid-IR traces dust formation and circumstellar interaction at late-times (>100 days) after the radioactive ejecta component fades. The Spitzer Space Telescope has provided substantial mid-IR observations of SNe since its launch in 2003. More than 200 SNe have been targeted, but there are even more SNe that have been observed serendipitously. Here we present the results of a comprehensive study based on archival Spitzer/IRAC images of more than 1100 SN positions; from this sample, 119 SNe of various subclasses have been detected, including 45 SNe with previously unpublished mid-IR photometry. The photometry reveal significant amounts of warm dust in some cases. We perform an in-depth analysis to constrain the origin and heating mechanism of the dust, and present the resulting statistics.

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。

↑