The Local Volume HI Survey (LVHIS)

IC 4247

IC 4247 (HIPASS J1326-30) is a dwarf irregular galaxy in the M83 sub-group with a TRGB} distance of 4.97 ± 0.49 Mpc (Karachentsev et al. 2007). Its systemic velocity is 420 km/s (Banks et al. 1999; Minchin et al. 2003). IC 4247's nearest neighbours are AM 1321-304 (45.8 arcmin), HIPASS J1321-31 (100.5 arcmin), KKs 54 (113.2 arcmin) and M 83 (136.6 arcmin); projected distances are given in brackets. Our low-resolution ATCA HI data show a marginally resolved source with a velocity gradient along the major axis. Higher resolution ATCA HI images reveal a tear-drop shaped gas distribution, hinting at tidal interactions. We measure FHI = 3.3 Jy km/s, in agreement with HIDEEP (Minchin et al. 2003), and derive an HI mass of 1.9 × 107 M. Lee et al. (2007) measure the properties of two HII regions in IC 4247. There are luminous AGB stars, helium-burning stars and some early type stars detected in this galaxy, indicating ongoing star formation. A detailed analysis of its star formation history shows the galaxy was constantly forming stars during its lifetime (Crnojevic et al. 2011).

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

Last updated on 18 Feb 2018. © Copyright CSIRO