Optical Spectra and Light Curves of Supernovae
Optical Spectra and Light Curves of Supernovae
复制标题
超新星的光谱和光曲线
DOI：
10.1007/10828549_23
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
A. Filippenko
中科院分区：
文献类型：
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作者：
A. Filippenko
我回顾了我的小组最近对超新星（SNe）的光学观测。使用0.76米卡兹曼自动成像望远镜的利克天文台超新星搜索是目前世界上对附近SNe最成功的搜索。我们还利用该望远镜获得了SNe的多色光曲线。我们发现的一个更有趣的超新星是SN 2000cx，它不同于之前观测到的超新星Ia。我们研究的另一个非常奇怪的SN Ia是SN 2002cx，它的许多性质与SN 2000cx相反。利用snii - p SN 1999em和SN 1999gi的大量资料，用展开光球法推导了距离。光谱偏振分析结果表明，我们对核心坍缩SNe的抛射物观察得越深，非球状性越大。我们正在使用哈勃太空望远镜的数据来识别或限制核心坍缩SNe的前身。
I review recent optical observations of supernovae (SNe) conducted by my group. The Lick Observatory Supernova Search with the 0.76-m Katzman Automatic Imaging Telescope is currently the world’s most successful search for nearby SNe. We also use this telescope to obtain multicolor light curves of SNe. One of the more interesting SNe we discovered is SN 2000cx, which differs from all previously observed SNe Ia. Another very strange SN Ia that we studied is SN 2002cx, many of whose properties are opposite those of SN 2000cx. Extensive data on the SNe II-P SN 1999em and SN 1999gi were used to derive distances with the expanding photosphere method. Results from spectropolarimetry suggest that the deeper we peer into the ejecta of core-collapse SNe, the greater the asphericity. We are usingHubble Space Telescopedata to identify, or set limits on, the progenitors of core-collapse SNe.