2015AJ....149...53K

Query : 2015AJ....149...53K

2015AJ....149...53K - Astron. J., 149, 53 (2015/February-0)

Measuring consistent masses for 25 Milky Way globular clusters.

KIMMIG B., SETH A., IVANS I.I., STRADER J., CALDWELL N., ANDERTON T. and GREGERSEN D.

Abstract (from CDS):

We present central velocity dispersions, masses, mass-to-light ratios (M/LS), and rotation strengths for 25 Galactic globular clusters (GCs). We derive radial velocities of 1951 stars in 12 GCs from single order spectra taken with Hectochelle on the MMT telescope. To this sample we add an analysis of available archival data of individual stars. For the full set of data we fit King models to derive consistent dynamical parameters for the clusters. We find good agreement between single-mass King models and the observed radial dispersion profiles. The large, uniform sample of dynamical masses we derive enables us to examine trends of M/L with cluster mass and metallicity. The overall values of M/L and the trends with mass and metallicity are consistent with existing measurements from a large sample of M31 clusters. This includes a clear trend of increasing M/L with cluster mass and lower than expected M/L for the metal-rich clusters. We find no clear trend of increasing rotation with increasing cluster metallicity suggested in previous work.

Abstract Copyright: ∼

Journal keyword(s): globular clusters: general - globular clusters: individual: (M2, M3, M14, M71, NGC 4147, NGC 5053, NGC 5466, NGC 6934, 47Tuc, M5, NGC 6441, M12, M15, M53, M92, NGC 6752, M4, M22, M30, M54, M55, M68, NGC 288, NGC 362)

VizieR on-line data: <Available at CDS (J/AJ/149/53): table1.dat table5.dat>

Simbad objects: 27

goto Full paper

goto View the references in ADS

Number of rows : 27
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 NGC 104 GlC 00 24 05.359 -72 04 53.20     4.09     ~ 4158 0
2 M 31 AGN 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 13622 1
3 NGC 288 GlC 00 52 45.24 -26 34 57.4   10 8.13     ~ 1130 0
4 NGC 362 GlC 01 03 14.26 -70 50 55.6     6.58     ~ 1167 0
5 NGC 2808 GlC 09 12 03.10 -64 51 48.6           ~ 1540 0
6 NGC 4147 GlC 12 10 06.149 +18 32 31.78   11.45 10.74     ~ 616 0
7 M 68 GlC 12 39 27.98 -26 44 38.6     7.96     ~ 1069 0
8 M 53 GlC 13 12 55.25 +18 10 05.4     7.79     ~ 907 0
9 NGC 5053 GlC 13 16 27.09 +17 42 00.9     9.96     ~ 675 0
10 M 3 GlC 13 42 11.62 +28 22 38.2     6.39     ~ 2593 0
11 NGC 5466 GlC 14 05 27.29 +28 32 04.0     9.70     ~ 887 0
12 Cl Pal 5 GlC 15 16 05.30 -00 06 41.0   15.1       ~ 797 1
13 M 5 GlC 15 18 33.22 +02 04 51.7     5.95     ~ 2095 0
14 M 4 GlC 16 23 35.22 -26 31 32.7           ~ 1978 0
15 M 12 GlC 16 47 14.18 -01 56 54.7     6.07     ~ 736 0
16 M 92 GlC 17 17 07.39 +43 08 09.4     6.52     ~ 2240 0
17 M 14 GlC 17 37 36.15 -03 14 45.3   9.55 5.73     ~ 420 0
18 NGC 6441 GlC 17 50 13.06 -37 03 05.2           ~ 940 0
19 M 22 GlC 18 36 23.94 -23 54 17.1           ~ 1459 0
20 M 54 GlC 18 55 03.33 -30 28 47.5           ~ 1164 0
21 NGC 6752 GlC 19 10 52.11 -59 59 04.4           ~ 2121 0
22 M 55 GlC 19 39 59.71 -30 57 53.1     6.49     ~ 913 0
23 M 71 GlC 19 53 46.49 +18 46 45.1           ~ 1190 0
24 NGC 6934 GlC 20 34 11.37 +07 24 16.1           ~ 459 0
25 M 15 GlC 21 29 58.33 +12 10 01.2           ~ 3274 0
26 M 2 GlC 21 33 27.02 -00 49 23.7     6.25     ~ 1114 1
27 M 30 GlC 21 40 22.12 -23 10 47.5     7.10     ~ 1121 0

To bookmark this query, right click on this link: simbad:objects in 2015AJ....149...53K and select 'bookmark this link' or equivalent in the popup menu