2006ApJ...648.1026W


Query : 2006ApJ...648.1026W

2006ApJ...648.1026W - Astrophys. J., 648, 1026-1036 (2006/September-2)

The blue straggler population of the globular cluster M5: comparison with M3.

WARREN S.R., SANDQUIST E.L. and BOLTE M.

Abstract (from CDS):

We have surveyed the blue straggler star population of the Galactic globular cluster M5 using high-resolution images of the core along with wide-field ground-based images reaching to more than 19 core radii. To gauge M5's relative efficiency of producing stragglers, we compared our sample to five studies of other globular clusters. Using a ``bright'' sample selected in the same way as that of Ferraro and coworkers, we found a bimodal radial distribution similar to those found in three other luminous clusters. When the radial distributions for different clusters are scaled using the core radius, there is good cluster-to-cluster agreement in the size of the core straggler sample and the center of the ``zone of avoidance.'' However, M5 has the smallest fraction of stragglers in the zone of avoidance of any of the clusters measured to date, and its zone of avoidance appears to be wider (in r/r_c_) than that of M3, which has a very similar surface brightness profile. Both of these facts indicate that M5's straggler population has dynamically evolved to a larger extent than M3's. Using an ultraviolet sample from Hubble Space Telescope selected in the same way as that of Ferraro and coworkers, we find that the frequency of blue stragglers in M5 is lower than in all but two of the clusters examined. We also identified seven bright blue stragglers that were previously misidentified as HB stars by Sandquist & Bolte. These bright stragglers are most likely the result of stellar collisions involving binary stars.

Abstract Copyright:

Journal keyword(s): Stars: Blue Stragglers - Galaxy: Globular Clusters: General - Galaxy: Globular Clusters: Individual: Messier Number: M5 - Galaxy: Globular Clusters: Individual: Messier Number: M3

VizieR on-line data: <Available at CDS (J/ApJ/648/1026): table2.dat>

Nomenclature: Table 2: Cl* NGC 5904 BBSS CNN (Nos C1-C48), Cl* NGC 5904 FBSS CNN (Nos C49-C95), Cl* NGC 5904 BBSS GNN (Nos G1-G11), Cl* NGC 5904 FBSS GNN (Nos G12-G24). Table 3: Cl* NGC 5904 NHBS N (Nos 1-3).

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

Simbad objects: 22

goto Full paper

goto View the references in ADS

Number of rows : 22
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2022
#notes
1 NGC 104 GlC 00 24 05.359 -72 04 53.20   5.78 4.09     ~ 3740 0
2 NGC 288 GlC 00 52 45.24 -26 34 57.4   10 8.13     ~ 988 0
3 M 53 GlC 13 12 55.25 +18 10 05.4   8.95 7.79     ~ 776 0
4 M 3 GlC 13 42 11.62 +28 22 38.2     6.39     ~ 2378 0
5 NGC 5824 GlC 15 03 58.612 -33 04 06.70   10.28 9.56     ~ 379 0
6 Cl* NGC 5904 SB 4-107 HB* 15 18 30.34 +02 05 45.7   16.3278 16.2801   16.1343 ~ 2 0
7 Cl* NGC 5904 SB 4-201 HB* 15 18 32.50 +02 05 02.4   14.9893 13.6832   15.6999 ~ 2 0
8 Cl* NGC 5904 SB 4-221 HB* 15 18 32.84 +02 05 22.3   16.3130 16.1620   16.0013 ~ 2 0
9 M 5 GlC 15 18 33.22 +02 04 51.7   7.34 5.95     ~ 1880 0
10 Cl* NGC 5904 SB 4-250 HB* 15 18 33.38 +02 05 06.5   16.2768 15.8436   15.1902 ~ 2 0
11 Cl* NGC 5904 SB 4-268 HB* 15 18 33.82 +02 05 24.1   16.0518 15.5975   15.0094 ~ 2 0
12 Cl* NGC 5904 SB 4-276 HB* 15 18 33.98 +02 05 00.8   15.8335 15.8513   15.3379 ~ 2 0
13 Cl* NGC 5904 SB 4-302 HB* 15 18 34.58 +02 03 44.2   16.1933 16.1722   15.9562 ~ 2 0
14 M 80 GlC 16 17 02.41 -22 58 33.9           ~ 671 0
15 M 13 GlC 16 41 41.634 +36 27 40.75     5.8     ~ 2108 0
16 M 10 GlC 16 57 09.05 -04 06 01.1     4.98     ~ 746 0
17 M 92 GlC 17 17 07.39 +43 08 09.4     6.52     ~ 2001 0
18 NGC 6752 GlC 19 10 52.11 -59 59 04.4   6.96 6.28     ~ 1904 0
19 M 55 GlC 19 39 59.71 -30 57 53.1     6.49     ~ 810 0
20 M 2 GlC 21 33 27.02 -00 49 23.7     6.25     ~ 968 1
21 GCl 124 GlC 23 06 44.48 +12 46 19.2   15.6       ~ 255 1
22 Cl* NGC 5904 NHBS 1 ? ~ ~           ~ 1 0

To bookmark this query, right click on this link: simbad:objects in 2006ApJ...648.1026W and select 'bookmark this link' or equivalent in the popup menu


2022.08.18-07:35:27

© Université de Strasbourg/CNRS

    • Contact