Hostname: page-component-cd9895bd7-mkpzs Total loading time: 0 Render date: 2024-12-12T16:58:53.810Z Has data issue: false hasContentIssue false

Mass Functions & Stellar Populations of Globular Clusters

Published online by Cambridge University Press:  14 August 2015

P. Guhathakurta
Affiliation:
UCO/Lick Observatory, Univ. of California, Santa Cruz, CA 95064, USA
G. Piotto
Affiliation:
Dipartimento di Astronomia, Vicolo dell’Osservatorio, 5, I-35128 Padova, Italy
E. Vesperini
Affiliation:
Dept of Physics & Astronomy, Univ. of Massachusetts, Amherst, MA 01003, USA

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

I present a summary of results from various HST photometric studies of the dense central regions of Galactic globular clusters that my collaborators and I have carried out over the last 6 years. The dataset includes short exposures of 47 Tuc, M15, M3 and M13 obtained with the aberrated Planetary Camera-I (PC-I) and F555W (“V”) and F785LP (“I”) filters, as well as post-refurbishment Wide Field Planetary Camera 2 (WFPC2) snapshots of the post core collapse clusters M15, M30, and NGC 6624 in F336W (“U”), F439W (“B”), and V. Recently, a very deep, doubly oversampled PC-I U image of the core of 47 Tuc, and accompanying B and V images, have also been analyzed. In addition, we have carried out extensive checks of incompleteness and photometric error with the help of multiband image simulations that mimic the relevant characteristics of the HST PC-I and WFPC2 images: empirical point spread function, crowding effects based on a realistic density profile and stellar luminosity function (LF), noise, undersampling, A/D saturation, etc..

Type
II. Joint Discussions
Copyright
Copyright © Kluwer 1998

References

References

Bailyn, C.D., & Pinsonneault, M.H., 1995, ApJ, 439, 705 CrossRefGoogle Scholar
Calzetti, D., De Marchi, G., Paresce, F., & Shara, M., 1993, ApJ, 402, LI CrossRefGoogle Scholar
Cohen, R.L., Guhathakurta, P., Yanny, B., Schneider, D.P., & Bahcall, J.N., 1997, AJ, 113, 669 CrossRefGoogle Scholar
De Marchi, G., Paresce, F., Stratta, M.G., Gilliland, R.L., & Bohlin, R.C., 1996, ApJ, 468, L51 CrossRefGoogle Scholar
Edmonds, P.D., Gilliland, R.L., Guhathakurta, P., Petro, L.D., Saha, A., & Shara, M.M., 1996, ApJ, 468, 241 CrossRefGoogle Scholar
Ferraro, F.R., Fusi Pecci, F., Cacciari, C., Corsi, C., Buonanno, R., Fahlman, G.G., & Richer, H.B., 1993, AJ, 106, 2324 CrossRefGoogle Scholar
Guhathakurta, P., Gilliland, R.L., & Edmonds, P.D., 1998, AJ, in prepGoogle Scholar
Guhathakurta, P., Yanny, B., Bahcall, J.N., & Schneider, D.P., 1994, AJ, 108, 1786 CrossRefGoogle Scholar
Guhathakurta, P., Yanny, B., Bahcall, J.N., & Schneider, D.P., 1996a, in Dynamical Evolution of Star Clusters, eds. Hut, P. & Makino, J. (Kluwer: Dordrecht), 333 Google Scholar
Guhathakurta, P., Yanny, B., Schneider, D.P., & Bahcall, J.N., 1992, AJ, 104, 1790 CrossRefGoogle Scholar
Guhathakurta, P., Yanny, B., Schneider, D.P., & Bahcall, J.N., 1993, in Blue Stragglers, ed. Saffer, R.A. (ASP Conference Series, Vol. 53), 60 Google Scholar
Guhathakurta, P., Yanny, B., Schneider, D.P., & Bahcall, J.N., 1996b, AJ, 111, 267 CrossRefGoogle Scholar
Guhathakurta, P., Yanny, B., Schneider, D.P., & Bahcall, J.N., 1996c, in Dynamical Evolution of Star Clusters, eds. Hut, P. & Makino, J. (Kluwer: Dordrecht), 19 Google Scholar
King, I.R., Sosin, C., & Cool, A.M., 1995, ApJ, 452, L33 CrossRefGoogle Scholar
Lauer, T.R., et al., 1991, ApJ, 369, L45 CrossRefGoogle Scholar
Meylan, G., & Heggie, D.C., 1997, A&A Rev., 8, 1 Google Scholar
Piotto, G., King, I.R., & Djorgovski, S., 1988, AJ, 96, 1918 CrossRefGoogle Scholar
Sosin, C., & King, I.R., 1997, AJ, 113, 1328 CrossRefGoogle Scholar
Webster, Z.T., Guhathakurta, P., Yanny, B., Schneider, D.P., & Bahcall, J.N., 1998, AJ, in prepGoogle Scholar
Yanny, B., Guhathakurta, P., Bahcall, J.N., & Schneider, D.P., 1994a, AJ, 107, 1745 CrossRefGoogle Scholar
Yanny, B., Guhathakurta, P., Schneider, D.P., & Bahcall, J.N., 1994b, ApJ, 435, L59 CrossRefGoogle Scholar

References

Dauphole, B., Geffert, M., Colin, J., Ducourant, C., Odenkirchen, M., & Tucholke, H.J., 1996, A&A, 313, 119 Google Scholar
Ferraro, F.R., Carretta, E., Bragaglia, A., Renzini, A., & Ortolani, S., 1997, MNRAS, 286, 1012 CrossRefGoogle Scholar
Piotto, G., Cool, A.M., & King, I.R., 1997, AJ, 113, 134 CrossRefGoogle Scholar
Zaggia, S., Piotto, C., & Capaccioli, M., 1997, A&A, in pressGoogle Scholar

References

Aarseth, S.J., 1985, in Multiple Time Scales, eds. Brackbill, J.U. & Cohen, B.I. (Academic Press, New York), 377 Google Scholar
Capaccioli, M., Piotto, G., & Stiavelli, M., 1993, MNRAS, 261, 819 CrossRefGoogle Scholar
Chernoff, D.F., Kochanek, C.S., & Shapiro, S.L., 1986, ApJ, 309, 183 CrossRefGoogle Scholar
Chernoff, D.F., & Weinberg, M.D., 1990, ApJ, 351, 121 CrossRefGoogle Scholar
De Marchi, G., & Paresce, F., 1995, A&A, 304, 211 Google Scholar
Djorgovski, S., Piotto, G., & Capaccioli, M., 1993, AJ, 105, 2148 CrossRefGoogle Scholar
Piotto, G., Cool, A.M., & King, I.R., 1997, AJ, 113, 1345 CrossRefGoogle Scholar
Vesperini, E., & Heggie, D.C., 1997, MNRAS, 289, 898 CrossRefGoogle Scholar