ESO 270-G017 (HIPASS
J1334-45) , also known as the Fourcade-Figueroa galaxy, is a highly
obscured edge-on spiral. Karachentsev et al. (2013) assigned a distance of
Dmem = 3.6 Mpc based on the assumption that it is a member of the
Cen A subgroup. Here we adopt the TRGB distance of 6.95 ± 0.16 Mpc
derived by Jacobs et al. (2009), in agreement with the Hubble distance obtained
from ESO 270-G017's Local Group velocity (vLG = 611 km/s). Our ATCA
HI maps reveal a well-resolved disc with a mostly regular rotation pattern (see
also Koribalski 2008). Some peculiar motions are discernible on the western
(approaching) side, which also shows a higher velocity dispersion. The observed
HI extent of ESO 270-G017 is only slightly larger than the stellar disc
detected in deep optical images by David Malin. Mild asymmetries in the stellar
disc (typical for SBm type galaxies) match those in the HI distribution. We
measure FHI = 224.7 Jy km/s, ~10% higher than the HIPASS
FHI (Koribalski et al. 2004), and derive MHI =
2.6 × 109 M☉.
Reference:
Koribalski et al. 2018
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