The SUMO project: a SUrvey of Multiple pOpulations in globular clusters

Bibcode
2013MmSAI..84...71M
Monelli, M.; Milone, A. P.; Stetson, P. B.; Marino, A. F.; Cassisi, S.; Del Pino Molina, A.; Salaris, M.; Aparicio, A.; Asplund, M.; Grundahl, F.; Piotto, G.; Weiss, A.; Carrera, R.; Cebrián, M.; Murabito, S.; Pietrinferni, A.; Sbordone, L.
Bibliographical reference

Memorie della Societa Astronomica Italiana, v.84, p.71 (2013)

Advertised on:
0
2013
Number of authors
17
IAC number of authors
7
Citations
0
Refereed citations
0
Description
We present the first results of the SUMO project, aimed at studying multiple populations in globular clusters. For this purpose we obtained wide-field photometry in a large sample of clusters using both archival and proprietary U, B, V, and I data from ground-based telescopes. We have defined a new photometric index c_U,B,I=(U-B)-(B-I), that we show is very effective to split multiple sequences along the red giant branch (RGB). We found a direct connection with the chemical properties of different sequences, that display different abundances of light elements.
Type
Non-refereed
Techniques

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