Astronomy and Astrophysics – Astrophysics – Solar and Stellar Astrophysics
Scientific paper
2009-10-13
Astronomy and Astrophysics
Astrophysics
Solar and Stellar Astrophysics
25 pages with 17 figures and 2 Appendices - To appear on Astronomy & Astrophysics
Scientific paper
We present a new homogeneous set of metallicity estimates based on Lick indices for 245 old globular clusters of the M31 galaxy comprised in the Revised Bologna Catalog. The metallicity distribution of the M31 globular clusters is briefly discussed and compared with that of the Milky Way. Simple parametric statistics suggests that the [Fe/H] distribution is likely not unimodal. The strong correlation between metallicity and kinematics found in previous studies is confirmed. The most metal-rich GCs tend to be packed at the center of the system and share the galactic rotation as traced by the HI disk. Although the velocity dispersion around the curve increases with decreasing metallicity, also clusters with [Fe/H]<-1.0 display a clear rotational pattern, at odds with their Milky Way counterparts.
Bellazzini Michele
Buzzoni Alberto
Federici Luciana
Fusi Pecci Flavio
Galleti Silvia
No associations
LandOfFree
An updated survey of globular clusters in M 31. III. A spectroscopic metallicity scale for the Revised Bologna Catalog does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with An updated survey of globular clusters in M 31. III. A spectroscopic metallicity scale for the Revised Bologna Catalog, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and An updated survey of globular clusters in M 31. III. A spectroscopic metallicity scale for the Revised Bologna Catalog will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-18300