Hostname: page-component-7c8c6479df-27gpq Total loading time: 0 Render date: 2024-03-29T10:36:36.587Z Has data issue: false hasContentIssue false

Studying Milky Way structure using stellar populations

Published online by Cambridge University Press:  01 December 2006

J. T. A. de Jong
Affiliation:
Max-Planck-Institut für Astronomie, Königstuhl 17, 69117 Heidelberg, Germany email: dejong@mpia.de
D. J. Butler
Affiliation:
Max-Planck-Institut für Astronomie, Königstuhl 17, 69117 Heidelberg, Germany email: dejong@mpia.de
H-W. Rix
Affiliation:
Max-Planck-Institut für Astronomie, Königstuhl 17, 69117 Heidelberg, Germany email: dejong@mpia.de
A. E. Dolphin
Affiliation:
Steward Observatory, Univ. of Arizona, 933 N. Cherry Ave, Tucson, AZ, 85721, United States
D. Martínez-Delgado
Affiliation:
Instituto de Astrofísica de Canarias, C/Vía Láctea, E38200, La Laguna, Spain
Rights & Permissions [Opens in a new window]

Abstract

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.

With the advent of large wide-field cameras and deep, CCD-based “all-sky” surveys, the study of the structure of the Milky Way (MW) through its stellar populations has become feasible. We are developing tools to apply CMD fitting techniques for this purpose. Here we present two applications. First we constrain the properties of the old and young stellar populations of the Canis Major overdensity. Secondly, we demonstrate how CMD fitting can be used to detect faint overdensities in the halo of the MW and determine their properties, using data from the Sloan Digital Sky Survey (SDSS).

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2007

References

Adelman-McCarthy, et al. , 2007, ApJS, subm.Google Scholar
Butler, D. J., Martínez-Delgado, D., Rix, H-W., Penarrubia, J., & DeJong, J. T. A. Jong, J. T. A., 2007, AJ accepted, astro-ph/0609316Google Scholar
deJong, J. T. A. Jong, J. T. A., Butler, D. J., Rix, H-W., Dolphin, A. E., & Martínez-Delgado, D., 2007, ApJ, subm., astro-ph/0701140Google Scholar
Dolphin, A. E. 1997, New Astron., 2, 397CrossRefGoogle Scholar
Dolphin, A. E. 2002, MNRAS, 332, 91CrossRefGoogle Scholar
Girardi, L., Bertelli, G., Bressan, A., Chiosi, C., Groenewegen, M. A. T., Marigo, P., Salasnich, B. & Weiss, A., 2002, A&A, 391, 195Google Scholar
Girardi, L., Grebel, E. K., Odenkirchen, M., & Chiosi, C., 2004, A&A, 422, 205Google Scholar
Martin, N. F., Ibata, R. A., Bellazzini, M., Irwin, M. J., Lewis, G. F., & Dehnen, W., 2004a, MNRAS, 348, 12CrossRefGoogle Scholar
Zucker, D. B., Belokurov, V., Evans, N. W., Wilkinson, M. I., Irwin, M. J., Sivarani, T., Hodgkin, S. et al. , 2006, ApJ, 643, L103CrossRefGoogle Scholar