The Local Volume HI Survey (LVHIS)

ESO 222-G010

ESO 222-G010 (HIPASS J1434-49) is a dwarf irregular galaxy at low Galactic latitude, located in the outskirts of the Cen A group. Its systemic velocity of vhel = 622 ± 5 km/s (Koribalski et al. 2004) and vLG = 431 km/s suggest a Hubble distance of 5.8 Mpc. No TRGB distance is currently available. Our ATCA HI data show a resolved distribution and a regular velocity field (PA ~ 20 degr), aligned with the faint stellar body. Higher resolution maps are needed to study its HI morphology and velocity field in detail. We measure FHI = 6.1 Jy km/s, in agreement with HIPASS (Koribalski et al. 2004), and derive MHI = 4.8 × 107 M. Bright Hα emission detected by Kaisin et al. (2007) agrees with the centre of the ATCA HI distribution presented here.

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

Last updated on 18 Feb 2018. © Copyright CSIRO