The Local Volume HI Survey

ESO 294-G010 is a dwarf galaxy at a TRGB distance of 1.92 ± 0.10 Mpc (Karachentsev et al. 2002). It is a member of the NGC 55 / NGC 300 subgroup in Sculptor. Optical images show a rather smooth stellar body typical of dwarf spheroidal galaxies, whereas GALEX UV images clearly reveal a clumpy inner structure. Some signs of star formation are present (Jerjen et al. 1998, Karachentsev et al. 2002). ATCA HI data show a weak source around ~106 km/s, slightly offset from its optical position as already indicated by Bouchard et al. (2005). It remains unclear if the detected HI emission belongs to the dwarf galaxy. The optical velocity of 117 ± 5 km/s (Jerjen et al. 1998) is also slightly offset. We measure F_HI = 0.1 Jy km/s and derive M_HI = 9 × 10⁴ M_☉. ESO 294-G010 appears to be similar to dwarf galaxies of mixed type like Phoenix, LGS 3 and KK 3.

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