The Local Volume HI Survey (LVHIS)

HIPASS J1247-77

HIPASS J1247-77 is a highly obscured (AB = 2.75) dwarf irregular galaxy located at α,δ(J2000) = 12:47:32.4, -77:34:53.9 as measured using our ATCA HI distribution (see also Kilborn et al. 2002). HST ACS images show a young stellar population and one bright star cluster; the galaxy's TRGB distance is 3.16 ± 0.25 Mpc (Karachentsev et al. 2006). Our ATCA HI data reveal a resolved source, centred on the faint optical counterpart, with a regular velocity field (PA ~ 55 degr). We measure vhel = 413 km/s and FHI = 4.2 Jy km/s, in agreement with HIPASS (Koribalski et al. 2004), and derive MHI = 107 M.
Furthermore, our ATCA data reveal a neighbouring HI source (not shown here) at α,δ(J2000) = 12:48:50.3, -77:49:30.6 without any obvious optical counterpart. It has a systemic velocity of ~402 km/s and FHI = 0.3 Jy km/s. We derive MHI = 7 × 105 M, assuming the same distance as above. GALEX UV images are not available at either position.
The nearest neighbour to HIPASS J1247-77 is IC 3104.

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

Last updated on 18 Feb 2018. © Copyright CSIRO