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New Local Volume Dwarf Galaxy Candidates from the DESI Legacy Imaging Surveys
Astrophysical Bulletin ( IF 1.2 ) Pub Date : 2023-02-08 , DOI: 10.1134/s1990341322040058
I. D. Karachentsev , E. I. Kaisina

Abstract—We undertook a search for new dwarf galaxies in the vicinity of relatively isolated nearby galaxies with distances \(D < 12\) Mpc and stellar masses in the (\(2 \times {{10}^{{11}}}\)\(3 \times {{10}^{8}} {{M}_{ \odot }}\)) interval, using the data from the DESI Legacy Imaging Surveys. Around the 46 considered Local Volume galaxies, \(67\) new candidates for satellites of these galaxies were found. About half of them are classified as spheroidal dwarfs of low surface brightness. The new galaxies are included in the Local Volume database (LVGDB), which now contains 1421 objects, being 63% more than the Updated Nearby Galaxy Catalog.



中文翻译:

来自 DESI 遗留成像调查的新本地体积矮星系候选者

摘要——我们在距离\(D < 12\) Mpc 和恒星质量在 ( \(2 \times {{10}^{{11}}} \)\(3 \times {{10}^{8}} {{M}_{ \odot }}\) )间隔,使用来自 DESI Legacy Imaging Surveys 的数据。在 46 个被考虑的局部体积星系周围,\(67\)个新的候选星系被发现。其中大约一半被归类为低表面亮度的球状矮星。新星系包含在本地体积数据库 (LVGDB) 中,该数据库现在包含 1421 个对象,比更新的附近星系目录多 63%。

更新日期:2023-02-10
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