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
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