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arXiv 1205.6973astro-ph.SR
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超新星2009NR的光度观测

Photometric observations of the supernova 2009nr

D. Yu. Tsvetkov, P. V. Balanutsa, V. M. Lipunov, I. M. Volkov, O. A. Tuchin, I. P. Kudelina, M. V. Pruzhinskaya, E. S. Gorbovskoy, V. G. Kornilov, A. A. Belinsk… 展开作者

D. Yu. Tsvetkov, P. V. Balanutsa, V. M. Lipunov, I. M. Volkov, O. A. Tuchin, I. P. Kudelina, M. V. Pruzhinskaya, E. S. Gorbovskoy, V. G. Kornilov, A. A. Belinskii, N. V. Tyurina, V. V. Yurkov, Yu. P. Sergienko, A. G. Tlatov, A. V. Parkhomenko, D. V. Dormidontov, V. A. Senik, V. V. Krushinskii

摘要:

我们目前的结果,我们的UBVRI CCD测光的第二个最亮的超新星的2009年,SN 2009nr,发现在天空调查与望远镜的MASTER机器人网络。绘制了它的光、色曲线和辐射热光变曲线。测定了光变曲线参数和最大光度。SN 2009 nr的光变曲线形状和最大光度与SN 1991 T相似,后者是Ia超新星的原型,但光度有所增强。SN 2009nr在距离螺旋星系UGC 8255中心很远的地方爆炸,很可能属于它的旧晕群。我们假设这次爆炸是白矮星合并的结果。

英文摘要:

We present the results of our UBVRI CCD photometry for the second brightest supernova of 2009, SN 2009nr, discovered during a sky survey with the telescopes of the MASTER robotic network. Its light and color curves and bolometric light curves have been constructed. The light-curve parameters and the maximum luminosity have been determined. SN 2009nr is shown to be similar in light-curve shape and maximum luminosity to SN 1991T, which is the prototype of the class of supernovae Ia with an enhanced luminosity. SN 2009nr exploded far from the center of the spiral galaxy UGC 8255 and most likely belongs to its old halo population. We hypothesize that this explosion is a consequence of the merger of white dwarfs.

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