The Local Volume HI Survey

HIPASS J1526-51 , also known as HIZOA J1526-51, appears to be a dwarf irregular galaxy located in the Zone-of-Avoidance. It was first discovered in the Parkes HI multibeam survey of the Zone of Avoidance (Juraszek et al. 2000). No optical counterpart has been identified due to the high optical extinction (A_B = 2.30 mag) and high stellar density (Ryan-Weber et al. 2002). Using our ATCA HI maps we measure a centre position of α,δ(J2000) = 15:26:22.4, -51:10:30.2. The Local Group velocity of HIPASS J1526-51 is 438 km/s which corresponds to a Hubble distance of 5.7 Mpc. The ATCA data reveal an extended HI distribution and a peculiar velocity field, hinting at two distinct components. Its nearest known neighbours are ESO 274-G001 (HIPASS J1514-46) and ESO 223-G009 (HIPASS J1501-48), both close to 5 degr away. We measure F_HI = 5.0 Jy km/s for HIPASS J1526-51, in agreement with HIPASS (Koribalski et al. 2004), and derive M_HI = 3.8 × 10⁷ M_☉.

Reference: Koribalski et al. 2018 * LVHIS database * LVHIS homepage * next