Palomar 5 and its tidal tails: New observational results

Details Palomar 5 and its tidal tails: New observational results Palomar 5 and its tidal tails: New observational results

2002-09-26

arxiv.org/abs/astro-ph/0209555v1

Astronomy and Astrophysics

Astrophysics

2 pages. To appear in "New Horizons in Globular Cluster Astronomy", eds. G. Piotto. G. Meylan, G. Djorgovski, M. Riello, ASP C

Scientific paper

Sloan Digital Sky Survey data for the field of the globular cluster Pal 5 reveal the existence of a long massive stream of tidal debris spanning an arc of 10 degrees on the sky. Pal 5 thus provides an outstanding example for tidal disruption of globular clusters in the Milky Way. Radial velocities from VLT spectra show that Pal 5 has an extremely low velocity dispersion, in accordance with the very low mass derived from its total luminosity.

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