On the occurrence of tidal tails in the Carina dSph

Monelli, M.; Walker, A. R.; Bono, G.; Buonanno, R.; Caputo, F.; Corsi, C. E.; Pulone, M. Dall'Ora L.; Smith, H.; Stetson, P. B.
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Memorie della Società Astronomica Italiana Supplement, v.5, p.65 (2004)

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Wide field B,V photometry of the outer regions of the Carina dwarf spheroidal galaxy is presented. Six fields were observed to a distance from the centre up to 4.5 degrees. We detected a sizable sample of faint blue objects, with V> 23 and B-V< 0.4. These objects populate the same region of the color magnitude diagram of the Carina old Main Sequence stars. However, it is not clear whether they are tracing a tidal stream connecting Carina to the Galaxy. We also present some plausible working hypothesis concerning the nature of the objects.