2013ApJ...770...45D


Query : 2013ApJ...770...45D

2013ApJ...770...45D - Astrophys. J., 770, 45 (2013/June-2)

Ultraviolet observations of the globular cluster M10 from HST and GALEX: the BSS population.

DALESSANDRO E., FERRARO F.R., LANZONI B., SCHIAVON R.P., O'CONNELL R.W. and BECCARI G.

Abstract (from CDS):

We present a combination of high-resolution Hubble Space Telescope and wide-field ground-based and Galaxy Evolution Explorer data of the Galactic globular cluster M10 (NGC 6254). By using this large data set, we determined the center of gravity of the cluster and we built its density profile from star counts over its entire radial extension. We find that the density profile is well reproduced by a single-mass King model with structural parameters c = 1.41 and rc= 41''. We also studied the blue straggler star (BSS) population and its radial distribution. We count a total number of 120 BSS within the tidal radius. Their radial distribution is bimodal: highly peaked in the cluster center, decreasing at intermediate distances, and rising again outward. We discuss these results in the context of the dynamical clock scheme presented by Ferraro et al. and of recent results about the radial distribution of binary systems in this cluster.

Abstract Copyright:

Journal keyword(s): binaries: close - blue stragglers - globular clusters: individual (M10, NGC 6254) - stars: evolution

Simbad objects: 12

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Number of rows : 12
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 NGC 104 GlC 00 24 05.359 -72 04 53.20   5.78 4.09     ~ 3654 0
2 M 79 GlC 05 24 10.59 -24 31 27.3   9.21 8.16     ~ 743 0
3 NGC 2419 GlC 07 38 08.51 +38 52 54.9     10.05     ~ 853 0
4 NGC 5139 GlC 13 26 47.28 -47 28 46.1   6.12 5.33     ~ 3122 0
5 GCl 38 GlC 16 10 59.00 +14 57 42.0           ~ 336 0
6 M 80 GlC 16 17 02.41 -22 58 33.9           ~ 648 0
7 M 4 GlC 16 23 35.22 -26 31 32.7           ~ 1724 0
8 M 10 GlC 16 57 09.05 -04 06 01.1     4.98     ~ 721 0
9 Cl* NGC 6254 VMC V1 EB* 16 57 39.1288890192 -04 16 04.185656100           ~ 2 0
10 Cl* NGC 6254 VMC V2 RR* 16 57 41.5476450422 -04 08 25.285990720           ~ 3 0
11 M 75 GlC 20 06 04.841 -21 55 20.14     8.26     ~ 326 0
12 M 30 GlC 21 40 22.12 -23 10 47.5     7.10     ~ 952 0

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2021.08.06-04:37:03

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