2000A&A...358..943Z

Query : 2000A&A...358..943Z

2000A&A...358..943Z - Astronomy and Astrophysics, volume 358943-955 (2000/6-3)

Comparison between observed and theoretical Red Giant Branch luminosity functions of galactic globular clusters.

ZOCCALI M. and PIOTTO G.

Abstract (from CDS):

V-band luminosity functions (LF) have been obtained for the upper main-sequence (MS), sub-giant branch (SGB) and red giant branch (RGB) of 18 galactic globular clusters (GGC) from HST data. A comparison with four sets of theoretical models has been performed. In contrast with what was found in several previous works, a good general agreement has been found between the observed and theoretical LF at any metallicity [M/H]←0.7. Possible discrepancies at higher metallicity, in the upper part of the RGB, need to be confirmed with further observational data and by extending all the models to the most metal rich regime. The SGB shape has been used to set an upper limit to the cluster age, and consequently a lower limit on the cluster distance. A discussion on the still open problem of the mismatch between the observed and theoretical RGB bump location is also presented.

Abstract Copyright: ∼

Journal keyword(s): stars: distances - stars: evolution - stars: luminosity function, mass function - stars: Population II - Galaxy: globular clusters: general

Simbad objects: 24

goto View the references in ADS

Number of rows : 24
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 362 GlC 01 03 14.26 -70 50 55.6     6.58     ~ 1167 0
3 NGC 1851 GlC 05 14 06.76 -40 02 47.6           ~ 1529 0
4 M 79 GlC 05 24 10.59 -24 31 27.3     8.16     ~ 883 0
5 NGC 2808 GlC 09 12 03.10 -64 51 48.6           ~ 1540 0
6 M 68 GlC 12 39 27.98 -26 44 38.6     7.96     ~ 1069 0
7 M 3 GlC 13 42 11.62 +28 22 38.2     6.39     ~ 2593 0
8 NGC 5694 GlC 14 39 36.52 -26 32 18.0           ~ 323 0
9 NGC 5824 GlC 15 03 58.612 -33 04 06.70   10.28 9.56     ~ 441 0
10 M 5 GlC 15 18 33.22 +02 04 51.7     5.95     ~ 2095 0
11 NGC 5927 GlC 15 28 00.69 -50 40 22.9           ~ 499 0
12 NGC 5986 GlC 15 46 03.00 -37 47 11.1     6.92     ~ 408 0
13 M 80 GlC 16 17 02.41 -22 58 33.9           ~ 780 0
14 M 19 GlC 17 02 37.69 -26 16 04.6   8.45 5.57     ~ 406 1
15 M 92 GlC 17 17 07.39 +43 08 09.4     6.52     ~ 2240 0
16 NGC 6356 GlC 17 23 34.99 -17 48 46.9   10.01 7.42     ~ 372 1
17 NGC 6388 GlC 17 36 17.461 -44 44 08.34           ~ 988 1
18 NGC 6397 GlC 17 40 42.09 -53 40 27.6     5.17     ~ 2103 0
19 NGC 6624 GlC 18 23 40.51 -30 21 39.7           ~ 939 1
20 NGC 6652 GlC 18 35 45.63 -32 59 26.6           ~ 474 0
21 NGC 6934 GlC 20 34 11.37 +07 24 16.1           ~ 459 0
22 M 72 GlC 20 53 27.70 -12 32 14.3     8.96     ~ 465 0
23 M 15 GlC 21 29 58.33 +12 10 01.2           ~ 3274 0
24 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 2000A&A...358..943Z and select 'bookmark this link' or equivalent in the popup menu