Asiago超新星分类计划:吹灭前两百支蜡烛
Asiago Supernova classification program: blowing out the first two hundred candles
摘要:
我们提出的汇编的第一个221超新星分类在Asiago分类计划(ACP)。瞬变分类的细节和初步简化的光谱,以拟合格式,立即张贴在帕多瓦-阿西亚戈SN组网站上。ACP的头2年实现的性能进行了分析,表明我们所有的分类中有一半是在5天内从瞬态检测。这个样本中超新星类型的分布类似于Asiago SN目录中列出的所有超新星的总列表的分布(ASNC,Barbon等人,1999)。最后,我们使用我们的子样本的78个核心坍缩超新星,我们检索的主机星系的形态和r-波段绝对星等,研究所观察到的子类型分布在矮星系相比,巨星系。这个正在进行的计划将为盖亚任务即将提供的大量瞬变的分类做出贡献。
英文摘要:
We present the compilation of the first 221 supernovae classified during the Asiago Classification Program (ACP). The details of transients classification and the preliminarily reduced spectra, in fits format, are immediately posted on the Padova-Asiago SN group web site. The achieved performances for the first 2 years of the ACP are analysed, showing that half of all our classifications were made within 5 days from transient detection. The distribution of the supernova types of this sample resembles the distribution of the general list of all the supernovae listed in the Asiago SN catalog (ASNC, Barbon et al. 1999). Finally, we use our sub-sample of 78 core-collapse supernovae, for which we retrieve the host-galaxy morphology and r-band absolute magnitudes, to study the observed subtype distribution in dwarf compared to giant galaxies. This ongoing program will give its contribution to the classification of the large number of transients that will be soon delivered by the Gaia mission.
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