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Observations of multiple populations in star clusters

Published online by Cambridge University Press:  01 October 2008

Giampaolo Piotto*
Affiliation:
Dipartimento di Astronomia, Università di Padova, Vicolo dell'Osservatorio, 3, I-35122, Padova, Italy email: giampaolo.piotto@unipd.it
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Abstract

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An increasing number of photometric observations of multiple stellar populations in Galactic globular clusters is seriously challenging the paradigm of GCs hosting single, simple stellar populations. These multiple populations manifest themselves in a split of different evolutionary sequences as observed in the cluster color-magnitude diagrams. Multiple stellar populations have been identified in Galactic and Magellanic Cloud clusters. In this paper we will summarize the observational scenario.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2009

References

Anderson, J. et al. 2008, AJ, 135, 2114Google Scholar
Bedin, L. R., Piotto, G., Anderson, J., Cassisi, S., King, I. R., Momany, Y., & Carraro, G. 2004, ApJ, 605, L125Google Scholar
Bekki, K. & Mackey, A. D. 2008, arXiv/0812.0631Google Scholar
Bekki, K. & Norris, J. E. 2006, ApJ (Letters), 637, L109Google Scholar
Bellazzini, M. et al. 2008, AJ, 136, 1147Google Scholar
Busso, G. et al. 2007, A&A, 474, 105Google Scholar
Caloi, V. & D'Antona, F. 2007, A&A, 463, 949Google Scholar
Carretta, E., Bragaglia, A., Gratton, R. G., Leone, F., Recio-Blanco, A., & Lucatello, S. 2006, A&A, 450, 523Google Scholar
Carretta, E. et al. 2007, A&A, 464, 957Google Scholar
Cassisi, S., Salaris, M., Pietrinferni, A., Piotto, G., Milone, A. P., Bedin, L. R., & Anderson, J. 2007, ApJ, 672, L115Google Scholar
Cohen, J. G., Briley, M. M., & Stetson, P. B. 2002, AJ, 123, 2525Google Scholar
D'Antona, F. & Caloi, V. 2004, ApJ, 611, 871Google Scholar
D'Antona, F., Bellazzini, M., Caloi, V., Pecci, F. Fusi, Galleti, S., & Rood, R. T. 2006, ApJ, 631, 868Google Scholar
Decressin, T., Meynet, G., Charbonnel, C., Prantzos, N., & Ekstrm, S. 2007, A&A, 464, 1029Google Scholar
Glatt, et al. 2008, AJ, 136, 1703Google Scholar
Gratton, R. et al. 2001, A&A, 369, 87Google Scholar
Gratton, R., Sneden, C., & Carretta, E. 2004, ARAA, 42, 385Google Scholar
Hesser, J. E., Bell, R. A., Harris, G. L. H., & Cannon, R. D. 1982, AJ, 87, 1470Google Scholar
Mackey, A. D. & Broby Nielsen, P. 2007, MNRAS, 379, 151Google Scholar
Milone, A. P. et al. 2008a, ApJ, 673, 241Google Scholar
Milone, A. P. et al. 2008b, in press, arXiv0810.2558Google Scholar
Moretti, A. et al. 2008, in press, arXiv0810.2248Google Scholar
Piotto, G. et al. , 2005, ApJ, 621, 777 (P05)Google Scholar
Piotto, G. et al. , 2007, ApJ, 661, L53 (P07)Google Scholar
Prantzos, N., Charbonnel, C., & Iliadis, C. 2007, A&A, 470, 179Google Scholar
Recio-Blanco, A., Aparicio, A., Piotto, G., de Angeli, F., & Djorgovski, S. G. 2006, A&A, 452, 875Google Scholar
Renzini, A. 2008, MNRAS, 391, 354Google Scholar
Richer, H. et al. 2008, AJ, 135, 2141Google Scholar
Sandage, A. & Wildey, R. 1967, ApJ, 150, 469Google Scholar
Siegel, et al. 2007, ApJ, 667, L57Google Scholar
Sollima, A., Pancino, E., Ferraro, F. R., Bellazzini, M., Straniero, O., & Pasquini, L. 2005, ApJ, 634, 332Google Scholar
Sollima, A., Ferraro, F. R., Bellazzini, M., Origlia, L., Straniero, O., & Pancino, E. 2007, ApJ, 654, 915Google Scholar
Sweigart, A. V. & Mengel, J. G. 1979, ApJ, 229, 624Google Scholar
Ventura, P., D'Antona, F., Mazzitelli, I., & Gratton, R. 2001, ApJ (Letters), 550, L65Google Scholar
Vallenari, A., Aparicio, A., Fagotto, F., Chiosi, C., Ortolani, S., & Meylan, G. 1994, A&A, 284, 447Google Scholar
Villanova, S. et al. , 2007, ApJ, 663, 296Google Scholar
van den Bergh, S. 1967, AJ, 72, 70Google Scholar
Yong, D. & Grundahl, F. 2008, ApJ, 672, L29Google Scholar