Erratum: Supernovae in the nuclear regions of starburst galaxies
Erratum: Supernovae in the nuclear regions of starburst galaxies
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勘误表：星暴星系核区的超新星
DOI：
10.1046/j.1365-8711.2001.04867.x
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发表时间：
2001
影响因子：
4.8
通讯作者：
W. Meikle
中科院分区：
文献类型：
--
作者：
S. Mattila;W. Meikle
研究了利用近红外观测发现附近星暴星系核区和核周区超新星的可行性。我们提供了这些区域内在核心塌陷超新星发生率的最新估计。我们讨论了灭绝问题，并提出了对星爆星系 M 82 中 33 个超新星遗迹的灭绝的新估计。这是使用 H I 和 H_2 柱密度测量来完成的。我们估计 M 82 中分子与原子氢的质量比为 7.4 ± 1.0。我们收集了总共 13 颗核心塌陷超新星的近红外光度数据，其中一些迄今尚未发表。这构成了此类事件的最大红外光曲线数据库。我们表明，红外光变曲线分为两类：“普通”和“缓慢下降”。模板 JHKL 光曲线是为这两个类别导出的。对于普通核心塌缩超新星，平均峰值 JHKL 绝对星等分别为 -18.4、-18.6、-18.6 和 -19.0。人们发现，即使在早期，缓慢下降的核心塌陷超新星也比普通事件更亮，平均峰值 JHKL 绝对星等分别为 -19.9、-20.0、-20.0 和 -20.4。我们研究了计算机图像减法在超新星探测中的效率。然后，我们使用 NGC 5962 的 K 波段图像对超新星搜索进行蒙特卡罗模拟。讨论了消光和观测策略的影响。我们的结论是，一个适度的观测计划将能够发现许多核超新星。
The feasibility of using near-infrared observations to discover supernovae in the nuclear and circumnuclear regions of nearby starburst galaxies is investigated. We provide updated estimates of the intrinsic core-collapse supernova rates in these regions. We discuss the problem of extinction, and present new estimates of the extinction towards 33 supernova remnants in the starburst galaxy M 82. This is done using H I and H_2 column density measurements. We estimate the molecular to atomic hydrogen mass ratio to be 7.4 +- 1.0 in M 82. We have assembled near-infrared photometric data for a total of 13 core-collapse supernovae, some unpublished hitherto. This constitutes the largest database of IR light curves for such events. We show that the IR light curves fall into two classes, ``ordinary'' and ``slow-declining''. Template JHKL light curves are derived for both classes. For ordinary core-collapse supernovae, the average peak JHKL absolute magnitudes are -18.4, -18.6, -18.6, and -19.0 respectively. The slow-declining core-collapse SNe are found to be significantly more luminous than the ordinary events, even at early times, having average peak JHKL absolute magnitudes of -19.9, -20.0, -20.0, and -20.4 respectively. We investigate the efficiency of a computerised image subtraction method in supernova detection. We then carry out a Monte Carlo simulation of a supernova search using K-band images of NGC 5962. The effects of extinction and observing strategy are discussed. We conclude that a modest observational programme will be able to discover a number of nuclear supernovae.