Astronomy and Astrophysics – Astrophysics
Scientific paper
2004-10-06
Astronomy and Astrophysics
Astrophysics
accepted for publication in the PASP (November 2004)
Scientific paper
10.1086/426123
The galaxy CFC97 Cen 05 has in the past been considered an HI-rich dwarf galaxy in the nearby Centaurus A group. We have used Australia Telescope Compact Array observations to show that the HI associated with CFC97 Cen 05 by Cote et al. (1997) is most likely a Galactic High Velocity Cloud that is centered ~17' from the optical image of the galaxy. At the optical location of the galaxy, which is not that tabulated by Banks et al. (1999), there is no indication of the presence of HI for velocities less than the upper limit of the HIPASS survey at ~12,500 km/s. In addition, WFPC2 images of CFC97 Cen 05 obtained from the HST Archive reveal that this galaxy is in fact not a dwarf at all, but rather is a distant background spiral not associated with the Centaurus A group.
Bouchard Antoine
Da Costa Gary S.
Jerjen Helmut
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