Abstract
HST has recently revealed that many among the most massive globular clusters harbor multiple stellar populations, and — most surprisingly — some of them are extremely helium rich. How these clusters managed to generate such complex stellar populations, and what processes let to so dramatic helium enrichment, is today one of the most exciting puzzles in the astrophysics of stellar systems. HST has also been instrumental in demonstrating that both the bulge of our own Galaxy and that of M31 are dominated by old stellar populations, coeval to galactic globular clusters. Ultradeep HST imaging has also demonstrated that a major component of the M31 halo is metal rich and much younger than old globular clusters.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Bedin, L.R., Anderson, J., King, I.R., Piotto, G., 2001. Astrophys. J. 560, L75.
Bedin, L.R., Piotto, G., Anderson, J., Cassisi, S., King, I.R., Momany, Y., Carraro, G., 2004. Astrophys. J. 605, L125.
Brown, T.M., Ferguson, H.C., Smith, E., Kimble, R.A., Sweigart, A.V., Renzini, A., Rich, R.M., VandenBerg, D.A., 2003. Astrophys. J. 592, L17.
Brown, T.M., et al., 2004. Astrophys. J. 613, L125.
Caloi, V., D’Antona, F., 2007. Astron. Astrophys. 463, 949.
Carretta, E., Bragaglia, A., Gratton, R.G., Leone, F., Recio-Blanco, A., Lucatello, S., 2006. Astron. Astrophys. 450, 523.
Cimatti, A., Daddi, E., Renzini, A., Cassata, P., Vanzella, E., Pozzetti, L., Cristiani, S., Fontana, A., Rodighiero, G., et al., 2004. Nature 430, 184.
Daddi, E., Renzini, A., Pirzkal, N., Cimatti, A., Malhotra, S., Stiavelli, M., Xu, C., Pasquali, A., Rhoads, J.E., Brusa, M., et al., 2005. Astrophys. J. 626, 680.
D’Antona, F., Caloi, V., 2004. Astrophys. J. 611, 871.
Kuijken, K., Rich, R.M., 2002. Astron. J. 123, 2054.
Lee, Y.-W., Joo, S.-J., Han, S.-I., Chung, C., et al., 2005. Astrophys. J. 621, L57.
Möhler, S., Sweigart, A.V., 2006. Astron. Astrophys. 455, 943.
Norris, J.E., 2004. Astrophys. J. 612, L25.
Ortolani, S., Renzini, A., Gilmozzi, R., Marconi, G., Barbuy, B., Bica, E., Rich, R.M., 1995. Nature 377, 701.
Pancino, E., Ferraro, F.R., Bellazzini, M., Piotto, G., Zoccali, M., 2000. Astrophys. J. 534, L83.
Piotto, G., Villanova, S., Bedin, L.R., Gratton, R., Cassisi, S., Momany, Y., Recio-Blanco, A., Lucatello, S., Anderson, J., et al., 2005. Astrophys. J. 621, 777.
Piotto, G., Bedin, L.R., Anderson, J., King, I.R., Cassisi, S., Milone, A.P., Villanova, S., Pietrinferni, A., Renzini, A., 2007. Astrophys. J. 661, L53.
Sollima, A., Ferraro, F.R., Pancino, E., Bellazzini, M., 2005. Mon. Not. R. Astron. Soc. 357, 265.
Sollima, A., Pancino, E., Ferraro, F.R., Bellazzini, M., Straniero, O., Pasquini, L., 2005. Astrophys. J. 634, 332.
Sosin, C., Dorman, B., Djorgovski, S.G., Piotto, G., et al., 1997. Astrophys. J. 480, L35.
Stephens, A.W., Frogel, J.A., DePoy, D.L., Freedman, W., Gallart, C., Jablonka, P., Renzini, A., Rich, R.M., Davies, R., 2003. Astron. J. 125, 2473.
Villanova, S., Piotto, G., King, I.R., Anderson, J., Bedin, L.R., Gratton, R.G., Cassisi, S., Momany, Y., Bellini, A., Cool, A.M., et al., 2007. Astrophys. J. 663, 296.
Zoccali, M., Renzini, A., Ortolani, S., Greggio, L., Saviane, I., Cassisi, S., Rejkuba, M., Barbuy, B., Rich, R.M., Bica, E., 2003. Astron. Astrophys. 399, 931.
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2010 Springer Science+Business Media B.V.
About this paper
Cite this paper
Renzini, A. (2010). New HST Views at Old Stellar Systems. In: Macchetto, F. (eds) The Impact of HST on European Astronomy. Astrophysics and Space Science Proceedings. Springer, Dordrecht. https://doi.org/10.1007/978-90-481-3400-7_16
Download citation
DOI: https://doi.org/10.1007/978-90-481-3400-7_16
Published:
Publisher Name: Springer, Dordrecht
Print ISBN: 978-90-481-3399-4
Online ISBN: 978-90-481-3400-7
eBook Packages: Physics and AstronomyPhysics and Astronomy (R0)