3 papers
astro-ph2005
The Carina dSph galaxy: where is the edge?
G. Bono, M. Monelli, A. R. Walker +13
Recent cosmological N-body simulations suggest that current empirical estimates of tidal radii in dSphs might be underestimated by at least one order of magnitude. To constrain the…
astro-ph1998
Properties of a Proper-Motion Selected Sample of Giants in the Small Magellanic Cloud near NGC 121
Nicholas B. Suntzeff, Alistair R. Walker, Verne V. Smith +3
We present both low and high-dispersion abundance analyses of giants drawn from the zero proper motion sample near NGC 121. For the sample of 35 stars, the mean metallicity of the…
astro-ph1998
An Extremely Red r^{1/4} Galaxy in the Test Image of the Hubble Deep Field South
T. Treu, M. Stiavelli, A. R. Walker +14
We report the serendipitous discovery of an extremely red object in the Hubble Deep Field South (HDFS) Test NICMOS (Near Infrared Camera and Multi Object Spectrograph) field of vie…