2007ApJ...671L.125C

Query : 2007ApJ...671L.125C

2007ApJ...671L.125C - Astrophys. J., 671, L125-L128 (2007/December-3)

The link between chemical anomalies along the red giant branch and the horizontal branch extension in globular clusters.

CARRETTA E., RECIO-BLANCO A., GRATTON R.G., PIOTTO G. and BRAGAGLIA A.

Abstract (from CDS):

We find a strong correlation between the extension of the Na-O anticorrelation observed in red giant branch (RGB) stars and the high-temperature extension of the horizontal branch (HB) blue tail of Galactic globular clusters (GCs). The longer is the O-depleted tail of the Na-O anticorrelation observed in the RGB stars, the higher the maximum temperature reached by the bluest HB stars in the GC. This result provides clear, empirical evidence of a link between the extension of the HB and the presence of star-to-star abundance variations of proton-capture elements in GC stars. We discuss the possible interpretation of this correlation.

Abstract Copyright: ∼

Journal keyword(s): Galaxy: Globular Clusters: General - Stars: Abundances - Stars: Evolution

Simbad objects: 18

goto Full paper

goto View the references in ADS

Number of rows : 18
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 NGC 3201 GlC 10 17 36.82 -46 24 44.9           ~ 1001 0
7 M 68 GlC 12 39 27.98 -26 44 38.6     7.96     ~ 1069 0
8 NGC 5139 GlC 13 26 47.28 -47 28 46.1           ~ 3677 0
9 M 5 GlC 15 18 33.22 +02 04 51.7     5.95     ~ 2095 0
10 M 13 GlC 16 41 41.634 +36 27 40.75     5.8     ~ 2291 0
11 M 12 GlC 16 47 14.18 -01 56 54.7     6.07     ~ 736 0
12 NGC 6388 GlC 17 36 17.461 -44 44 08.34           ~ 988 1
13 NGC 6397 GlC 17 40 42.09 -53 40 27.6     5.17     ~ 2103 0
14 NGC 6441 GlC 17 50 13.06 -37 03 05.2           ~ 940 0
15 NGC 6752 GlC 19 10 52.11 -59 59 04.4           ~ 2121 0
16 M 71 GlC 19 53 46.49 +18 46 45.1           ~ 1190 0
17 M 15 GlC 21 29 58.33 +12 10 01.2           ~ 3274 0
18 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 2007ApJ...671L.125C and select 'bookmark this link' or equivalent in the popup menu