Abstract

Based on archival Hubble Space Telescope images, we have performed stellar photometry for the spiral Seyfert galaxy NGC 1672 located in the Dorado (Goldfish) galaxy group. The distance to this galaxy measured by the TRGB method (\(D=15.8\pm 0.8\) Mpc) has shown that NGC 1672 does enter into the Dorado group. We have identified stars of various ages and luminosities on the Hertzsprung–Russell diagrams and studied their distribution over the body of the galaxy. Intense star formation and asymmetry in the distribution of young stars point to the interaction of NGC 1672 with the close galaxy NGC 1688 located at a distance of 200 kpc. We have found that several young star clusters contain stars of very high luminosities (as high as \(M_{I}={-}11^{m}\)) that can be defined as massive hypergiants.

中文翻译：

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距塞弗特星系NGC 1672及其恒星结构的距离1

摘要

根据档案哈勃太空望远镜的影像，我们对位于Dorado（金鱼）星系组中的螺旋塞弗特星系NGC 1672进行了恒星测光。通过TRGB方法测得的距该星系的距离（\（D = 15.8 \ pm 0.8 \） Mpc）表明NGC 1672确实进入了Dorado组。我们已经在赫兹普劳–拉塞尔图中确定了各种年龄和亮度的恒星，并研究了它们在银河系中的分布。强烈的恒星形成和年轻恒星分布的不对称性表明NGC 1672与位于200 kpc距离的近距离星系NGC 1688的相互作用。我们发现几个年轻的星团包含非常高的亮度的恒星（高达\（M_ {I} = {-} 11 ^ {m} \）），可以定义为大规模超人。