Low-mass stars in an outer field in NGC 6397

Jeremy R. Mould; Alan M. Watson; John S. Gallagher; Gilda E. Ballester; Christopher J. Burrows; Stefano Casertano; John T. Clarke; David Crisp; Richard E. Griffiths; J. Jeff Hester; John G. Hoessel; Jon A. Holtzman; Paul A. Scowen; Karl R. Stapelfeld; John T. Trauger; James A. Westphal

doi:10.1086/133785

Research output: Contribution to journal › Article › peer-review

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 HST. At a level which is severely limited by counting statistics in the small area so far studied, this field is richer in dwarfs with I>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.

Original language	English (US)
Pages (from-to)	682-687
Number of pages	6
Journal	Publications of the Astronomical Society of the Pacific
Volume	108
Issue number	726
DOIs	https://doi.org/10.1086/133785
State	Published - Aug 1996
Externally published	Yes

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

Access to Document

10.1086/133785

Cite this

Mould, J. R., Watson, A. M., Gallagher, J. S., Ballester, G. E., Burrows, C. J., Casertano, S., Clarke, J. T., Crisp, D., Griffiths, R. E., Hester, J. J., Hoessel, J. G., Holtzman, J. A., Scowen, P. A., Stapelfeld, K. R., Trauger, J. T., & Westphal, J. A. (1996). Low-mass stars in an outer field in NGC 6397. Publications of the Astronomical Society of the Pacific, 108(726), 682-687. https://doi.org/10.1086/133785

Mould, JR, Watson, AM, Gallagher, JS, Ballester, GE, Burrows, CJ, Casertano, S, Clarke, JT, Crisp, D, Griffiths, RE, Hester, JJ, Hoessel, JG, Holtzman, JA, Scowen, PA, Stapelfeld, KR, Trauger, JT & Westphal, JA 1996, 'Low-mass stars in an outer field in NGC 6397', Publications of the Astronomical Society of the Pacific, vol. 108, no. 726, pp. 682-687. https://doi.org/10.1086/133785

@article{61e16315f745431db2c79b30a7a2d9d5,

title = "Low-mass stars in an outer field in NGC 6397",

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 HST. At a level which is severely limited by counting statistics in the small area so far studied, this field is richer in dwarfs with I>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.",

author = "Mould, \{Jeremy R.\} and Watson, \{Alan M.\} and Gallagher, \{John S.\} and Ballester, \{Gilda E.\} and Burrows, \{Christopher J.\} and Stefano Casertano and Clarke, \{John T.\} and David Crisp and Griffiths, \{Richard E.\} and Hester, \{J. Jeff\} and Hoessel, \{John G.\} and Holtzman, \{Jon A.\} and Scowen, \{Paul A.\} and Stapelfeld, \{Karl R.\} and Trauger, \{John T.\} and Westphal, \{James A.\}",

year = "1996",

month = aug,

doi = "10.1086/133785",

language = "English (US)",

volume = "108",

pages = "682--687",

journal = "Publications of the Astronomical Society of the Pacific",

issn = "0004-6280",

publisher = "Institute of Physics Publishing",

number = "726",

}

TY - JOUR

T1 - Low-mass stars in an outer field in NGC 6397

AU - Mould, Jeremy R.

AU - Watson, Alan M.

AU - Gallagher, John S.

AU - Ballester, Gilda E.

AU - Burrows, Christopher J.

AU - Casertano, Stefano

AU - Clarke, John T.

AU - Crisp, David

AU - Griffiths, Richard E.

AU - Hester, J. Jeff

AU - Hoessel, John G.

AU - Holtzman, Jon A.

AU - Scowen, Paul A.

AU - Stapelfeld, Karl R.

AU - Trauger, John T.

AU - Westphal, James A.

PY - 1996/8

Y1 - 1996/8

N2 - 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 HST. At a level which is severely limited by counting statistics in the small area so far studied, this field is richer in dwarfs with I>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.

AB - 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 HST. At a level which is severely limited by counting statistics in the small area so far studied, this field is richer in dwarfs with I>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.

UR - https://www.scopus.com/pages/publications/0030487262

UR - https://www.scopus.com/pages/publications/0030487262#tab=citedBy

U2 - 10.1086/133785

DO - 10.1086/133785

M3 - Article

AN - SCOPUS:0030487262

SN - 0004-6280

VL - 108

SP - 682

EP - 687

JO - Publications of the Astronomical Society of the Pacific

JF - Publications of the Astronomical Society of the Pacific

IS - 726

ER -

Low-mass stars in an outer field in NGC 6397

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this