2006ApJ...651L.133C

Query : 2006ApJ...651L.133C

2006ApJ...651L.133C - Astrophys. J., 651, L133-L136 (2006/November-2)

Deep HST photometry of NGC 6388: age and horizontal-branch luminosity.

CATELAN M., STETSON P.B., PRITZL B.J., SMITH H.A., KINEMUCHI K., LAYDEN A.C., SWEIGART A.V. and RICH R.M.

Abstract (from CDS):

Using the Hubble Space Telescope, we have obtained the first color-magnitude diagram (CMD) to reach the main-sequence turnoff of the Galactic globular cluster NGC 6388. From a comparison between the cluster CMD and that of 47 Tucanae, we find that the bulk of the stars in these two clusters have nearly the same age and chemical composition. On the other hand, our results indicate that the blue horizontal branch and RR Lyrae components in NGC 6388 are intrinsically overluminous, which must be due to one or more, still undetermined, noncanonical second parameter(s) affecting a relatively minor fraction of the stars in NGC 6388.

Abstract Copyright: ∼

Journal keyword(s): Galaxy: Globular Clusters: General - globular clusters: individual (47 Tucanae) - globular clusters: individual (NGC 6388) - globular clusters: individual (NGC 6441) - Stars: Horizontal-Branch - Stars: Variables: Other

Simbad objects: 6

goto Full paper

goto View the references in ADS

Number of rows : 6
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 2419 GlC 07 38 08.51 +38 52 54.9     10.05     ~ 998 0
3 M 92 GlC 17 17 07.39 +43 08 09.4     6.52     ~ 2240 0
4 NGC 6388 GlC 17 36 17.461 -44 44 08.34           ~ 988 1
5 NGC 6441 GlC 17 50 13.06 -37 03 05.2           ~ 940 0
6 NGC 6752 GlC 19 10 52.11 -59 59 04.4           ~ 2121 0

To bookmark this query, right click on this link: simbad:objects in 2006ApJ...651L.133C and select 'bookmark this link' or equivalent in the popup menu