Abstract
We present abundance studies of dwarf irregular galaxies in the Local Group which appear to have undergone very slow chemical evolution since they have low nebular abundances, but have had ongoing star formation over the past 15 Gyr. They are too distant for red giant abundance analyses to examine the details of their chemical evolution. However the isolated, bright blue supergiants do allow us to determine their present-day iron abundances. We compare the [α/Fe] ratios in the dwarf irregulars to those from recent analyses of red giant branch stars in dwarf spheroidal galaxies, damped Lyman α absorption systems, and the latest model predictions.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
Similar content being viewed by others
References
1. F. Calura, F. Matteucci, G. Vladilo: MNRAS 340, 59 (2003)
2. A.E. Dolphin, A. Saha, E.D. Skillman: AJ, 125, 1261 (2003)
3. B. Edvardsson, J. Andersen, B. Gustafsson, et al.: A & A, 275, 101 (1993)
4. C. Gallart, A. Aparicio, G. Bertelli, C. Chiosi: AJ, 112, 1950 (1996)
5. G. Gilmore, R.F.G. Wyse: ApJ, 367, L55 (1991)
6. A. Kaufer, K.A. Venn, E. Tolstoy, C. Pinte, R. Kudritzki: AJ, 127, 2723 (2004)
7. C. Ledoux, J. Bergeron, P. Petitjean: A & A, 385, 802 (2002)
8. F. Matteucci, M. Tosi: MNRAS, 217, 391 (1985)
9. F. Matteucci: APSS, 284, 539 (2003)
10. M. Mateo: Annual Review A & A, 36, 435 (1998)
11. P.E. Nissen, W.J. Schuster: A & A, 326, 751 (1997)
12. P.E. Nissen, Y.Q. Chen, M. Asplund, M. Pettini: A & A, 415, 993 (2004)
13. J.X. Prochaska, E. Gawiser, A.M. Wolfe, et al.: ApJ, 595, L5 (2003)
14. M.D. Shetrone, P. Côté, W.L.W. Sargent: ApJ, 548, 592 (2001)
15. M.D. Shetrone, K.A. Venn, E. Tolstoy, et al.: AJ, 125, 684 (2003)
16. M. Steinmetz, J.F. Navarro: ApJ, 513, 555 (1999)
17. E. Tolstoy, K.A. Venn, M. Shetrone, et al.: AJ, 125, 707 (2003)
18. K.A. Venn, A. Kaufer, J.M. McCarthy, et al.: ApJ, 547, 765 (2001)
19. K.A. Venn, E. Tolstoy, A. Kaufer, et al.: AJ, 126, 1326 (2003)
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2006 Springer
About this paper
Cite this paper
Kaufer, A., Venn, K., Tolstoy, E., Kudritzki, R. (2006). Abundances in Local Group Early-Type Stars. In: Randich, S., Pasquini, L. (eds) Chemical Abundances and Mixing in Stars in the Milky Way and its Satellites. ESO ASTROPHYSICS SYMPOSIA. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-34136-9_74
Download citation
DOI: https://doi.org/10.1007/978-3-540-34136-9_74
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-34135-2
Online ISBN: 978-3-540-34136-9
eBook Packages: Physics and AstronomyPhysics and Astronomy (R0)