Star count ratios in the Galactic globular cluster M92.

Bibcode
2009MmSAI..80...81D
Di Cecco, A.; Bono, G.; Monelli, M.; Calamida, A.; Nonino, M.; Stetson, P. B.; Buonanno, R.; Caputo, F.; Corsi, C. E.; Ferraro, I.; Iannicola, G.; Pulone, L.; Walker, A. R.
Bibliographical reference

Memorie della Società Astronomica Italiana, v.80, p.81 (2009)

Advertised on:
0
2009
Number of authors
13
IAC number of authors
0
Citations
1
Refereed citations
1
Description
We present both space (ACS@HST: F814W, F606W, F475W) and ground-based (MEGACAM@CFHT: u*, g',i',r',z') photometry of the Galactic Globular Cluster (GGC) M92. Space data are located close to the cluster center, while the ground-based data cover one square degree around the cluster center. We investigate the ratios between Horizontal Branch (HB), Main Sequence (MS) and Red Giant Branch (RGB) stars across the body of the cluster. We found that the star counts agree quite well with the predicted evolutionary lifetimes.
Type
Non-refereed

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