Hostname: page-component-cd9895bd7-jkksz Total loading time: 0 Render date: 2024-12-27T07:21:25.588Z Has data issue: false hasContentIssue false
  • English
  • Français

Abundances & Abundance Ratios in our Galaxy & the Local Group

Published online by Cambridge University Press:  01 December 2006

Eline Tolstoy
Eline Tolstoy*
Affiliation:
Kapteyn Astronomical Institute, University of Groningen, Postbus 800, 9700AV Groningen, the Netherlands
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.

This is a review of the progress of ESO/WFI Imaging and VLT/FLAMES spectroscopy of large numbers of individual stars in nearby dwarf spheroidal galaxies primarily by the Dwarf Abundances and Radial-velocities Team (DART). These observations have allowed us to show that neither the kinematics nor the abundance nor the spatial distributions are easy to explain in a straight forward manner for these smallest galaxies. The main result is that dwarf galaxies show complex and highly specific evolutionary and metal enrichment processes, especially at ancient times. This conclusively proves that these small galaxies are not the building blocks of the larger galaxies in the Local Group.

Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S241: Stellar Populations as Building Blocks of Galaxies , December 2006 , pp. 279 - 285
Copyright
Copyright © International Astronomical Union 2007

References

Armandroff, , & Da Costa, 1991 AJ, 101, 1329CrossRefGoogle Scholar
Battaglia, G. & DART 2006, A&A, 459, 423Google Scholar
Belokurov, V. et al. 2006, ApJ, 647, L111CrossRefGoogle Scholar
Christlieb, N. et al. 2002, Nature, 419, 904CrossRefGoogle Scholar
Cole, A.A., Smecker-Hane, T.A., Tolstoy, E., Bosler, T.L. & Gallagher, J.S. 2004 MNRAS, 347, 367CrossRefGoogle Scholar
Cole, A.A., Tolstoy, E., Gallagher, J.S. & Smecker-Hane, T.A. 2005 AJ, 129, 1465CrossRefGoogle Scholar
Dolphin, A.E., Weisz, D.R., Skillman, E.D. & Holtzman, J.A. 2005 Resolved Stellar Populations, eds. Valls-Gabaud, D. & Chavez, M. (astro-ph/0506430)Google Scholar
Einasto, J., Saar, E., Kaasik, A. & Chermin, A.D. 1974 Nature, 252, 111CrossRefGoogle Scholar
Geisler, D., Smith, V., Wallerstein, G., Gonzalez, G. & Charbonnel, C. 2005 AJ, 129, 1428CrossRefGoogle Scholar
Helmi, A., Irwin, M.J., Tolstoy, E., Battaglia, G., Hill, V. et al. , 2006 ApJ, 651, L121CrossRefGoogle Scholar
Irwin, M. & Hatzidimitriou, D. 1995 MNRAS, 277, 1354CrossRefGoogle Scholar
Koch, A., Grebel, E.K., Wyse, R.F.G., Kleyna, J.T., Wilkinson, M.I., Harbeck, D., Gilmore, G.F. & Evans, N.W. (2006) AJ, 131, 1405CrossRefGoogle Scholar
Lee, Y-W., Yoon, S-J., Rey, S-C. & Chaboyer, B. 2001 Astrophysical Ages & Time Scales, eds. Hippel, T. von, Mansen, N. & Simpson, C.Google Scholar
Mayer, L., Governato, F., Colpi, M., Moore, B., Quinn, T., Wadsley, J., Stadel, J. & Lake, G. 2001 ApJ, 547, L123CrossRefGoogle Scholar
McWilliam, A. 1997 ARA&A 35, 503Google Scholar
Mori, M., Ferrara, A. & Madau, P. 2002 ApJ, 571, 40CrossRefGoogle Scholar
Shetrone, M.D., Venn, K.A., Tolstoy, E., Primas, F., Hill, V. & Kaufer, A. 2003 AJ, 125, 684CrossRefGoogle Scholar
Skillman, E.D., Tolstoy, E., Cole, A.A., Dolphin, A.E., Saha, A., Gallagher, J. S., Dohm-Palmer, R.C. & Mateo, M. 2003 ApJ, 596, 253CrossRefGoogle Scholar
Tolstoy, E., Venn, K.A., Shetrone, M.D., Primas, F., Hill, V., Kaufer, A. & Szeifert, T. 2003 AJ, 125, 707CrossRefGoogle Scholar
Tolstoy, E., Irwin, M.J., Helmi, A., Battaglia, G., Jablonka, P., Hill, V., Venn, K.A., Shetrone, M.D., Letarte, B., Cole, A.A., Primas, F., Francois, P., Arimoto, N., Sadakane, K., Kaufer, A., Szeifert, T. & Abel, T. 2004 ApJ, 617, l119CrossRefGoogle Scholar
Venn, K., Irwin, M., Shetrone, M.D., Tout, C.A., Hill, V. & Tolstoy, E. 2004 AJ, 128, 1177CrossRefGoogle Scholar
Wilkinson, M., Kleyna, J.T., Evans, N.W., Gilmore, G., Irwin, M. J. & Grebel, E.K. 2004 ApJ, 611, L21CrossRefGoogle Scholar