The Discovery of Tidal Tails Around NGC 5466

Details The Discovery of Tidal Tails Around NGC 5466 The Discovery of Tidal Tails Around NGC 5466

2005-11-28

arxiv.org/abs/astro-ph/0511767v1

Astrophys.J.637:L29-L32,2006

Astronomy and Astrophysics

Astrophysics

4 pages, 4 figures, submitted to The Astrophysical Journal (Letters)

Scientific paper

10.1086/500362

We report the discovery of tidal tails around the high-latitude Galactic globular cluster NGC 5466 in Sloan Digital Sky Survey (SDSS) data. Neural networks are used to reconstruct the probability distribution of cluster stars in u,g,r,i and z space. The tails are clearly visible, once extra-galactic contaminants and field stars have been eliminated. They extend roughly 4 degrees on the sky, corresponding to about 1 kpc in projected length. The orientation of the tails is in good agreement with the cluster's Galactic orbit, as judged from the proper motion data.

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