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Published August 1996 | Version Published
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Low-Mass Stars in an Outer Field in NGC 6397

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Abstract

We have imaged a field 10' from the center of the globular cluster NGC 6397 in the visible and I bands with WFPC2 on the Η ST. At a level which is severely limited by counting statistics in the small area so far studied, this field is richer in dwarfs with />21.5 than the 4:6 radius parallel field discussed by Paresce and colleagues. This indicates that the dynamical process of mass segregation is occurring in the cluster.

Additional Information

© 1996 Astronomical Society of the Pacific. Provided by the NASA Astrophysics Data System. Received 1996 February 29; accepted 1996 May 31. This research was carried out by the WFPC2 Investigation Definition Team for JPL and was sponsored by NASA through Contract No. NAS7-1260. J.R.M. wishes to thank Gary Da Costa for helpful discussions and the referee for useful comments.

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53680
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CaltechAUTHORS:20150114-094315944

Related works

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http://adsabs.harvard.edu/full/1996PASP..108..682M (URL)
http://www.jstor.org/stable/i40029746 (URL)

Funding

NASA
NAS7-1260

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2015-01-14
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2021-11-10
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