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Globular clusters as laboratories for stellar evolution

Published online by Cambridge University Press:  18 January 2010

Márcio Catelan ,
Aldo A. R. Valcarce  and
Allen V. Sweigart
Márcio Catelan
Affiliation:
Pontificia Universidad Católica de Chile, Departamento de Astronomía y Astrofísica, Av. Vicuña Mackenna 4860, 782-0436 Macul, Santiago, Chile email: [email protected], [email protected]
Aldo A. R. Valcarce
Affiliation:
Pontificia Universidad Católica de Chile, Departamento de Astronomía y Astrofísica, Av. Vicuña Mackenna 4860, 782-0436 Macul, Santiago, Chile email: [email protected], [email protected]
Allen V. Sweigart
Affiliation:
NASA Goddard Space Flight Center, Exploration of the Universe Division, Code 667, Greenbelt, MD 20771, USA email: [email protected]
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Abstract

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Globular clusters have long been considered the closest approximation to a physicist's laboratory in astrophysics, and as such a near-ideal laboratory for (low-mass) stellar evolution. However, recent observations have cast a shadow on this long-standing paradigm, suggesting the presence of multiple populations with widely different abundance patterns, and—crucially– with widely different helium abundances as well. In this review we discuss which features of the Hertzsprung–Russel diagram may be used as helium-abundance indicators, and present an overview of available constraints on the helium abundance in globular clusters.

Keywords

Hertzsprung–Russell diagramstars: abundancesstars: evolutionstars: Population IIglobular clusters: general
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 5 , Symposium S266: Star clusters: basic galactic building blocks throughout time and space , August 2009 , pp. 281 - 292
Copyright
Copyright © International Astronomical Union 2010

References

Behr, B. B. 2003, ApJS, 149, 67CrossRefGoogle Scholar
Bono, G., Cassisi, S., Zoccali, M., & Piotto, G. 2001, ApJ (Letters), 546, L109Google Scholar
Bono, G., Castellani, V., Degl'Innocenti, S., & Pulone, L. 1995, A&A, 297, 115Google Scholar
Brown, T. M., Smith, E., Ferguson, H. C., Sweigart, A. V., Kimble, R. A., & Bowers, C. W. 2008, ApJ, 682, 319Google Scholar
Busso, G., et al. 2007, A&A, 474, 105Google Scholar
Caloi, V. & D'Antona, F. 2005, A&A, 435, 987Google Scholar
Caloi, V. & D'Antona, F. 2007, A&A, 463, 949Google Scholar
Caputo, F. & Castellani, V. 1975, Ap&SS, 38, 39Google Scholar
Caputo, F., Cayrel, R., & Cayrel de Strobel, G. 1983, A&A, 123, 135Google Scholar
Carretta, E., Bragaglia, A., Gratton, R., & Lucatello, S. 2009, A&A, in press (arXiv:0909.2941)Google Scholar
Carretta, E., et al. 2007, A&A, 464, 939Google Scholar
Cassisi, S., Salaris, M., Anderson, J., Piotto, G., Pietrinferni, A., Milone, A., Bellini, A., & Bedin, L. R. 2009, ApJ, 702, 1530Google Scholar
Cassisi, S., Salaris, M., Pietrinferni, A., Piotto, G., Milone, A. P., Bedin, L. R., & Anderson, J. 2008, ApJ (Letters), 672, L115CrossRefGoogle Scholar
Catelan, M. 2008, MemSAIt, 79, 388Google Scholar
Catelan, M. 2009, Ap&SS, 320, 261Google Scholar
Catelan, M., Grundahl, F., Sweigart, A. V., Valcarce, A. A. R., & Cortés, C. 2009, ApJ (Letters), 695, L97CrossRefGoogle Scholar
Crocker, D. A., Rood, R. T., & O'Connell, R. W. 1988, ApJ, 332, 236CrossRefGoogle Scholar
D'Antona, F., Bellazzini, M., Caloi, V., Fusi Pecci, F., Galleti, S., & Rood, R. T. 2005, ApJ, 631, 868Google Scholar
D'Antona, F. & Caloi, V. 2008, MNRAS, 390, 693CrossRefGoogle Scholar
Davis, D. S., Richer, H. B., Anderson, J., Brewer, J., Hurley, J., Kalirai, J. S., Rich, R. M., & Stetson, P. B. 2008, AJ, 135, 2155Google Scholar
Dupree, A. K., Smith, G. H., & Strader, J. 2009, AJ, 138, 1485Google Scholar
Ferraro, F. R., Valenti, E., Straniero, O., & Origlia, L. 2006, ApJ, 642, 225CrossRefGoogle Scholar
Fusi Pecci, F., Bellazzini, M., Ferraro, F. R., Buonanno, R., & Corsi, C. E. 1996, in: Morrison, H. & Sarajedini, A. (eds.) Formation of the Galactic Halo . . . . Inside and Out, ASP Conf. Ser., Vol. 92, p. 221 (San Francisco: ASP)Google Scholar
Girardi, L., Castelli, F., Bertelli, G., & Nasi, E. 2007, A&A, 468, 657Google Scholar
Gratton, R. G., Carretta, E., Matteucci, F., & Sneden, C. 2000, A&A, 358, 671Google Scholar
Grundahl, F., Catelan, M., Landsman, W. B., Stetson, P. B., & Andersen, M. I. 1999, ApJ, 524, 242Google Scholar
Iben, I. Jr. 1968, Nature, 220, 143CrossRefGoogle Scholar
Lee, J.-W., Lee, J., Kang, Y.-W., Lee, Y.-W., Han, S.-I., Joo, S.-J., Rey, S.-C., & Yong, D. 2009, ApJ (Letters), 695, L78Google Scholar
Marcolini, A., Gibson, B. K., Karakas, A. I., & Sánchez–Blázquez, P. 2009, MNRAS, 395, 719CrossRefGoogle Scholar
Marino, A. F., Villanova, S., Piotto, G., Milone, A. P., Momany, Y., Bedin, L. R., & Medling, A. M. 2008, A&A, 490, 625Google Scholar
Moehler, S. 2001, PASP, 113, 1162CrossRefGoogle Scholar
Moehler, S., Dreizler, S., Lanz, T., Bono, G., Sweigart, A. V., Calamida, A., Monelli, M., & Nonino, M. 2007, A&A (Letters), 475, L5Google Scholar
Moehler, S., Landsman, W. B., Sweigart, A. V., & Grundahl, F. 2003, A&A, 405, 135Google Scholar
Moehler, S., Sweigart, A. V., Landsman, W. B., & Dreizler, S. 2009, Ap&SS, 291, 231Google Scholar
Norris, J. E. 2004, ApJ (Letters), 612, L25CrossRefGoogle Scholar
Palmieri, R., Piotto, G., Saviane, I., Girardi, L., & Castellani, V. 2002, A&A, 392, 115Google Scholar
Pietrinferni, A., Cassisi, S., Salaris, M., Percival, S., & Ferguson, J. W. 2009, ApJ, 697, 275CrossRefGoogle Scholar
Piotto, G. 2009, Proc. Int'l Astron. Union, 4, 233CrossRefGoogle Scholar
Piotto, G., et al. 2005, ApJ, 621, 777Google Scholar
Piotto, G., et al. 2007, ApJ (Letters), 661, L53Google Scholar
Pritzl, B. J., Smith, H. A., Catelan, M., & Sweigart, A. V. 2002, AJ, 124, 949Google Scholar
Raffelt, G. G. 1996, Stars as Laboratories for Fundamental Physics: The Astrophysics of Neutrinos, Axions, and Other Weakly Interacting Particles (Chicago: Univ. of Chicago Press)Google Scholar
Raffelt, G. G. 2000, Phys. Rep., 333, 593CrossRefGoogle Scholar
Raffelt, G. G. 2008, Lect. Notes Phys., 741, 51Google Scholar
Riello, M., et al. 2003, A&A, 410, 553Google Scholar
Salaris, M., Cassisi, S., & Pietrinferni, A. 2008, ApJ (Letters), 678, L25Google Scholar
Salaris, M., Chieffi, A., & Straniero, O. 1993, ApJ, 414, 580Google Scholar
Salaris, M., Riello, M., Cassisi, S., & Piotto, G. 2004, A&A, 420, 911Google Scholar
Salaris, M., Weiss, A., Ferguson, J. W., & Fusilier, D. J. 2006, ApJ, 645, 1131Google Scholar
Sandquist, E. L. 2000, MNRAS, 313, 571CrossRefGoogle Scholar
Sollima, A., Borissova, J., Catelan, M., Smith, H. A., Minniti, D., Cacciari, C., & Ferraro, F. R. 2006, ApJ (Letters), 640, L43Google Scholar
Sollima, A., Ferraro, F. R., Pancino, E., & Bellazzini, M. 2005, MNRAS, 357, 265Google Scholar
Sweigart, A. V. 1987, ApJS, 65, 95CrossRefGoogle Scholar
Sweigart, A. V. & Catelan, M. 1998, ApJ, 501, L63CrossRefGoogle Scholar
Valcarce, A. A. R. 2010, Ph.D. Thesis, Pontificia Universidad Católica de Chile (in prep.)Google Scholar
Ventura, P., Caloi, V., D'Antona, F., Ferguson, J., Milone, A., & Piotto, G. P. 2009, MNRAS, 399, 934CrossRefGoogle Scholar
Villanova, S., Piotto, G., & Gratton, R. 2009, A&A, 499, 755Google Scholar
Yong, D., Grundahl, F., D'Antona, F., Karakas, A. I., Lattanzio, J. C., & Norris, J. E. 2009, ApJ (Letters), 695, L62CrossRefGoogle Scholar
Yong, D., Grundahl, F., Johnson, J. A., & Asplund, M. 2008, ApJ, 684, 1159Google Scholar
Yoon, S.-J., Joo, S.-J., Ree, C. H., Han, S.-I., Kim, D.-G., & Lee, Y.-W. 2008, ApJ, 677, 1080Google Scholar
Zoccali, M., Cassisi, S., Bono, G., Piotto, G., Rich, R. M., & Djorgovski, S. G. 2000, ApJ, 538, 289Google Scholar