1999AJ....117..277D

Query : 1999AJ....117..277D

1999AJ....117..277D - Astron. J., 117, 277-285 (1999/January-0)

Space velocities of southern globular clusters. II. New results for 10 clusters.

DINESCU D.I., VAN ALTENA W.F., GIRARD T.M. and LOPEZ C.E.

Abstract (from CDS):

Absolute proper motions have been measured for 10 clusters, in addition to the sample of five clusters presented in an earlier paper. These newly measured clusters are NGC 1904 (M79), NGC 2298, NGC 4590 (M68), NGC 5139 (ω Cen), NGC 5897, NGC 6093 (M80), NGC 6121 (M4), NGC 6144, NGC 6809 (M55), and NGC 7099 (M30). The correction to absolute proper motion is determined based on galaxies, except for one field with high extinction, for which we used the Hipparcos system. This latter correction proves to be very useful for fields at low Galactic latitude, provided magnitude-dependent systematics are well controlled. The errors in absolute proper motion per cluster range between 0.4 and 1.0 mas.yr–1. Space velocities are also determined, and the kinematics are briefly discussed; a companion paper will present a detailed analysis of orbits in conjunction with other physical parameters of clusters.

Abstract Copyright: ∼

Journal keyword(s): Astrometry - Galaxy: Globular Clusters: General - Galaxy: Globular Clusters: Individual: NGC Number: NGC 1904 - Galaxy: Globular Clusters: Individual: NGC Number: NGC 2298 - Galaxy: Globular Clusters: Individual: NGC Number: NGC 4590 - Galaxy: Globular Clusters: Individual: NGC Number: NGC 5139 - Galaxy: Globular Clusters: Individual: NGC Number: NGC 5897 - Galaxy: Globular Clusters: Individual: NGC Number: NGC 6093 - Galaxy: Globular Clusters: Individual: NGC Number: NGC 6121 - Galaxy: Globular Clusters: Individual: NGC Number: NGC 6144 - Galaxy: Globular Clusters: Individual: NGC Number: NGC 6809 - Galaxy: Globular Clusters: Individual: NGC Number: NGC 7099

Simbad objects: 10

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Number of rows : 10
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 M 79 GlC 05 24 10.59 -24 31 27.3     8.16     ~ 883 0
2 NGC 2298 GlC 06 48 59.41 -36 00 19.1     8.89     ~ 547 0
3 M 68 GlC 12 39 27.98 -26 44 38.6     7.96     ~ 1069 0
4 NGC 5139 GlC 13 26 47.28 -47 28 46.1           ~ 3677 0
5 NGC 5897 GlC 15 17 24.40 -21 00 36.4   10.16 8.52     ~ 424 0
6 M 80 GlC 16 17 02.41 -22 58 33.9           ~ 780 0
7 M 4 GlC 16 23 35.22 -26 31 32.7           ~ 1978 0
8 NGC 6144 GlC 16 27 13.86 -26 01 24.6           ~ 268 0
9 M 55 GlC 19 39 59.71 -30 57 53.1     6.49     ~ 913 0
10 M 30 GlC 21 40 22.12 -23 10 47.5     7.10     ~ 1121 0

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