Mould, Jeremy R. and Watson, Alan M. and Gallagher, John S., III and Ballester, Gilda E. and Burrows, Christopher J. and Casertano, Stefano and Clarke, John T. and Crisp, David and Griffiths, Richard E. and Hester, J. Jeff and Hoessel, John G. and Holtzman, Jon A. and Scowen, Paul A. and Stapelfeldt, Karl R. and Trauger, John T. and Westphal, James A. (1996) Low-Mass Stars in an Outer Field in NGC 6397. Publications of the Astronomical Society of the Pacific, 108 (726). pp. 682-687. ISSN 0004-6280. doi:10.1086/133785. https://resolver.caltech.edu/CaltechAUTHORS:20150114-094315944
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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.
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| 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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| Issue or Number: | 726 | ||||||||||||
| DOI: | 10.1086/133785 | ||||||||||||
| Record Number: | CaltechAUTHORS:20150114-094315944 | ||||||||||||
| Persistent URL: | https://resolver.caltech.edu/CaltechAUTHORS:20150114-094315944 | ||||||||||||
| Official Citation: | Low Mass Stars in an Outer Field in NGC 6397 Mould, J. R., Watson, A. M., Gallagher, J. S., III, Ballester, G. E., Burrows, C. J., Casertano, S., , Publications of the Astronomical Society of the Pacific, v.108, p.682 | ||||||||||||
| Usage Policy: | No commercial reproduction, distribution, display or performance rights in this work are provided. | ||||||||||||
| ID Code: | 53680 | ||||||||||||
| Collection: | CaltechAUTHORS | ||||||||||||
| Deposited By: | Ruth Sustaita | ||||||||||||
| Deposited On: | 14 Jan 2015 20:57 | ||||||||||||
| Last Modified: | 10 Nov 2021 20:05 |
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