2010MNRAS.409.1281F

Query : 2010MNRAS.409.1281F

2010MNRAS.409.1281F - Mon. Not. R. Astron. Soc., 409, 1281-1288 (2010/December-2)

Old star clusters in the FSR catalogue.

FROEBRICH D., SCHMEJA S., SAMUEL D. and LUCAS P.W.

Abstract (from CDS):

We investigate the old star clusters in the sample of cluster candidates from the Froebrich, Scholz & Raftery (FSR) list. Based on photometry from the Two-Micron All-Sky Survey, we generated decontaminated colour–magnitude and colour–colour diagrams to select a sample of 269 old stellar clusters. This sample contains 63 known globular clusters, 174 known open clusters and 32 so far unclassified objects. Isochrone fitting has been used to homogeneously calculate the age, distance and reddening to all clusters. The mean age of the open clusters in our sample is 1 Gyr. The positions of these clusters in the Galactic plane show that 80 per cent of open clusters older than 1 Gyr have a Galactocentric distance of more than 7 kpc. The scaleheight for the old open clusters above the Galactic plane is 375 pc, more than three times as large as 115 pc, which we obtain for the younger open clusters in our sample. We find that the mean optical extinction towards the open clusters in the disc of the Galaxy is 0.70 mag/kpc. The FSR sample has a strong selection bias towards objects with an apparent core radius of 30–50 arcsec and there is an unexplained paucity of old open clusters in the Galactic longitude range of 120° < l < 180°.

Abstract Copyright: 2010 The Authors. Journal compilation2010 RAS

Journal keyword(s): globular clusters: general - open clusters and associations: general

VizieR on-line data: <Available at CDS (J/MNRAS/409/1281): appena.dat appenb.dat notes.dat>

Status at CDS : All or part of tables of objects could be ingested in SIMBAD with priority 2.

Simbad objects: 23

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Number of rows : 23
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 [FSR2007] 0584 OpC 02 27 15.0 +61 37 28           ~ 23 0
2 NAME Gal Anticenter reg 05 46 +28.9           ~ 1024 0
3 NGC 2429 GiG 07 43 47.5775925120 +52 21 26.944226208   14.7       ~ 20 0
4 DSH J1059.3-5932 OpC 10 59 18.6 -59 32 41           ~ 20 1
5 Cl Trumpler 19 OpC 11 14 30.6 -57 33 49     9.6     ~ 33 0
6 Cl Loden 1101 OpC 13 58 10 -61 45.0           ~ 11 0
7 [FSR2007] 1716 OpC 16 10 33.0 -53 44 12           ~ 63 0
8 ESO 390-6 GlC 16 28 40.10 -35 21 13.0     12.0     ~ 113 0
9 NAME 2MASS-GC03 GlC 16 52 10.602 -47 03 29.00           ~ 68 0
10 NGC 6287 GlC 17 05 09.4906767360 -22 42 28.099250172   11.49 10.30     ~ 240 0
11 NGC 6325 GlC 17 17 59.27 -23 45 57.7           ~ 190 0
12 NAME Tonantzintla 2 GlC 17 36 10.500 -38 33 12.00           ~ 115 0
13 NAME Galactic Center reg 17 45 39.60213 -29 00 22.0000           ~ 16269 0
14 NGC 6569 GlC 18 13 38.88 -31 49 35.2   10.78 9.47     ~ 276 0
15 M 69 GlC 18 31 23.10 -32 20 53.1           ~ 492 0
16 NGC 6652 GlC 18 35 45.63 -32 59 26.6           ~ 474 0
17 M 54 GlC 18 55 03.33 -30 28 47.5           ~ 1164 0
18 NGC 6723 GlC 18 59 33.15 -36 37 56.1           ~ 543 0
19 DSH J1958.1+3053 OpC 19 58 08.5 +30 52 51           ~ 19 1
20 [FSR2007] 0190 OpC 20 05 31.3 +33 34 09           ~ 25 0
21 NGC 7006 GlC 21 01 29.465 +16 11 16.49     10.46     ~ 562 0
22 DSH J2126.1+5331 OpC 21 26 11.3 +53 32 02           ~ 17 0
23 NAME PWM 3 OpC 23 07 59 +60 52.4           ~ 14 0

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