The Local Volume HI Survey (LVHIS)

ESO 324-G024

ESO 324-G024 (HIPASS J1327-41) is a Magellanic irregular galaxy located near or within the northern radio lobe of Cen A (Johnson et al. 2015). Its TRGB distance of 3.73 ± 0.43 Mpc (Karachentsev et al. 2002; Jacobs et al. 2009) places it ≳ 100 kpc from the centre of Cen A, making it the closest dIrr companion. Numerous dSph galaxies (eg., KKs 55, AM 1318-444, KK 197) are possibly located even closer to Cen A than ESO324-G024. Our ATCA data show a tadpole-shaped HI distribution, the head of which agrees with the stellar body. The HI tail points in a north-east direction and shows a disturbed velociy field. Cote et al. (2009) detect just a few HII regions, mostly outside the bright stellar disc. For a detailed analysis of ESO324-G024's HI morphology, kinematics, star formation and polarisation properties see Johnson et al. (2015). We measure FHI = 52.0 Jy km/s, in agreement with HIPASS (Koribalski et al. 2004), and derive MHI = 1.70 × 108 M.

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

Last updated on 18 Feb 2018. © Copyright CSIRO