New Local Volume Dwarf Galaxy Candidates from the DESI Legacy Imaging Surveys

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.

21 pages, 4 figures, 2 tables, 1 Appendix (Images of candidate satellites for nearby massive galaxies, taken from DESI Legacy Imaging Surveys), accepted in Astrophysical Bulletin

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Cited by in corpus (7)

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• Formation of Transitional cE/UCD Galaxies through Massive/Dwarf Disc Galaxy Mergers
• 100 Proof: HI Observations of 100 Nearby Dwarf Galaxies with the 100-meter Green Bank Telescope
• The pride of lions around Messier 105
• Environmental Quenching of Low Surface Brightness Galaxies near Milky Way mass Hosts
• Tracing satellite planes in the Sculptor group: II. Discovery of five faint dwarf galaxies in the DESI Legacy Survey
• Dwarf Galaxy Number Counts within 25 Mpc: Predictions from Local Group Analogues in TNG50