The Local Volume HI Survey

ESO 272-G025 (HIPASS J1443-44) is a dwarf irregular galaxy located in the outskirts of the Cen A group at a Hubble distance of 5.9 Mpc. Its nearest neighbour is most likely the galaxy ESO 223-G009 (HIPASS J1501-48). Our ATCA data show a barely resolved HI source centred on the bright and compact optical body; no rotation is discernible in our velocity field (see also Bouchard et al. 2007). Galactic cirrus filaments are visible in the optical image. We measure F_HI = 1.6 Jy km/s, in agreement with HIPASS (Meyer et al. 2004), and derive M_HI = 1.3 × 10⁷ M_☉. Reduzzi & Rampazzo (1995) suggest ESO 272-G025 has an extended low-surface brightness disc or is possibly a galaxy pair. ESO 272-G025 shows clumpy and diffuse Hα emission (Kaisin et al. 2007; Cote et al. 2009), with an estimated star formation rate of 1.5 × 10^-3 M_☉/yr.

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