1995A&A...294...80F

Query : 1995A&A...294...80F

1995A&A...294...80F - Astronomy and Astrophysics, volume 29480-88 (1995/2-1)

Blue stragglers in Galactic globular clusters: playing with specific quantities.

FERRARO F.R., FUSI PECCI F. and BELLAZZINI M.

Abstract (from CDS):

We present preliminary results obtained from the comparison of the specific frequencies of blue straggler stars (BSS) detected so far in a sample of 26 Galactic globular clusters. The number of BSS seems to increase almost linearly with increasing the amount of sampled light in loose clusters, while it drops abruptly for clusters having intermediate-high central densities. In particular, a simple interpretative scenario where the BSS in loose clusters are produced from primordial binaries and those detected in high density globulars are due to star interactions leading to binary formation, merging. etc. seems compatible with these early results. The possibility that this observational evidence could be ascribed to systematic biases mostly related to the increasing difficulty to detect BSS candidates with increasing cluster concentration, is also discussed

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Journal keyword(s): globular clusters: general - blue stragglers

Simbad objects: 26

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Number of rows : 26
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 NGC 288 GlC 00 52 45.24 -26 34 57.4   10 8.13     ~ 1130 0
3 NGC 2419 GlC 07 38 08.51 +38 52 54.9     10.05     ~ 998 0
4 NAME Sextans C GlC 10 05 30.96 +00 04 15.4   15.5 13.9     ~ 354 1
5 NGC 3201 GlC 10 17 36.82 -46 24 44.9           ~ 1001 0
6 GCl 17 GlC 11 29 16.80 +28 58 25.0   14.4       ~ 379 1
7 NGC 4372 GlC 12 25 45.43 -72 39 32.7   10.86 9.85     ~ 327 0
8 Cl Ruprecht 106 GlC 12 38 40.20 -51 09 01.0           ~ 413 0
9 M 53 GlC 13 12 55.25 +18 10 05.4     7.79     ~ 907 0
10 NGC 5053 GlC 13 16 27.09 +17 42 00.9     9.96     ~ 675 0
11 M 3 GlC 13 42 11.62 +28 22 38.2     6.39     ~ 2593 0
12 NGC 5466 GlC 14 05 27.29 +28 32 04.0     9.70     ~ 887 0
13 IC 4499 GlC 15 00 18.57 -82 12 49.6     8.56     ~ 375 0
14 Cl Pal 5 GlC 15 16 05.30 -00 06 41.0   15.1       ~ 797 1
15 NGC 5897 GlC 15 17 24.40 -21 00 36.4   10.16 8.52     ~ 424 0
16 GCl 38 GlC 16 10 59.00 +14 57 42.0           ~ 399 0
17 NGC 6101 GlC 16 25 48.12 -72 12 07.9           ~ 337 0
18 M 107 GlC 16 32 31.86 -13 03 13.6           ~ 835 0
19 NGC 6229 GlC 16 46 58.641 +47 31 36.38   9.38 9.86     ~ 397 0
20 GCl 50 GlC 16 59 51.1 -00 32 00   15.70       ~ 224 1
21 NGC 6366 GlC 17 27 44.24 -05 04 47.5           ~ 344 0
22 NGC 6397 GlC 17 40 42.09 -53 40 27.6     5.17     ~ 2103 0
23 M 71 GlC 19 53 46.49 +18 46 45.1           ~ 1190 0
24 M 15 GlC 21 29 58.33 +12 10 01.2           ~ 3274 0
25 Cl Pal 12 GlC 21 46 38.84 -21 15 09.4     11.89     ~ 548 0
26 NGC 7492 GlC 23 08 26.68 -15 36 41.3     10.48     ~ 330 0

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