Peekaboo: the extremely metal poor dwarf galaxy HIPASS J1131-31

• Published in: arXiv.org
• Main Authors: Karachentsev, I D, Makarova, L N, Koribalski, B S, Anand, G S, Tully, R B, Kniazev, A Y
• Format: Paper Journal Article
• Language: English
• Published: Ithaca Cornell University Library, arXiv.org 07.12.2022
• Subjects: Color-magnitude diagram; Dwarf galaxies; Hubble Space Telescope; Irregular galaxies; Physics - Astrophysics of Galaxies; Red giant stars; Red shift; Star formation

The dwarf irregular galaxy HIPASS J1131-31 was discovered as a source of HI emission at low redshift in such close proximity of a bright star that we call it Peekaboo. The galaxy resolves into stars in images with Hubble Space Telescope, leading to a distance estimate of 6.8+-0.7 Mpc. Spectral optic...