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arXiv 0803.1934astro-ph
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核心坍缩超新星宿主的尘埃含量

Dust content of core-collapse supernova hosts

A. -L. Melchior, F. Combes

摘要:

我们研究了一个z=0.1-0.6的核心坍缩超新星(CCSN)宿主星系的小样本。在IRAM-30米望远镜上用MAMBO进行了250 GHz的连续谱观测。这些源都没有被探测到,误差加权平均通量为0.25+/-0.32 mJy。得出了这些尘埃质量的上限,相应的样本平均值相当于1.4 +/- 2.2 x 10^8 Msol。这些结果与以前的亚毫米观测SN-Ia主机进行Farrah等人。和Clements等人。我们得出结论,CCSN主机是不是极端的毫米波长,并确认与我们的样本的一个子集的光学光度,他们是典型的本地星系人口。

英文摘要:

We study a small sample of z=0.1-0.6 core-collapse supernova (CCSN) host galaxies. Continuum observations at 250GHz have been performed with MAMBO at the IRAM-30m telescope. None of these sources has been detected and the error-weighted mean flux is 0.25+/-0.32 mJy. Upper limits on their dust masses are derived and the corresponding sample mean corresponds to 1.4 +/- 2.2 x 10^8 Msol. These results are comparable with previous submillimetre observations of SN-Ia hosts performed by Farrah et al. and by Clements et al. We conclude that CCSN hosts are not extreme at millimetre wavelengths, and as confirmed with the optical luminosities of a subset of our sample, they are typical of the local galaxy population.

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