Absrtact

Stellar photometry of 24 dwarf galaxies was carried out using the archival images of the Hubble Space Telescope. The resulting Hertzsprung–Russell diagrams reveal branches of young and old stars. Using the results of photometry and applying the TRGB method, we have for the first time determined exact distances to 13 galaxies. Galaxy PGC 704814 is located at the closest distance (\(D = 3.73\) Mpc), while SDSS J115 840.37+153 533.7 is located the farthest from us (\(D = 11.95\) Mpc). The distances to other galaxies lie in the range from 7 to 11 Mpc. The object SDSS J140 457.78+534 128.2, as follows from the distribution of red giants, is not a galaxy, but rather a young star complex on the periphery of the neighboring galaxy NGC 5474.

中文翻译：

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到 24 个矮星系的距离

文摘

使用哈勃太空望远镜的档案图像对 24 个矮星系进行了恒星光度测量。由此产生的 Hertzsprung-Russell 图揭示了年轻和年老恒星的分支。使用测光结果并应用 TRGB 方法，我们首次确定了到 13 个星系的准确距离。Galaxy PGC 704814 距离我们最近（\(D = 3.73\) Mpc），而 SDSS J115 840.37+153 533.7 距离我们最远（\(D = 11.95\) Mpc）。与其他星系的距离在 7 到 11 Mpc 之间。从红巨星的分布来看，SDSS J140 457.78+534 128.2 并不是一个星系，而是邻近星系 NGC 5474 外围的年轻恒星复合体。