Hostname: page-component-6bb9c88b65-vmslq Total loading time: 0 Render date: 2025-07-24T03:03:54.162Z Has data issue: false hasContentIssue false

Bulges vs elliptical galaxies: some clues from their formation in a cosmological context

Published online by Cambridge University Press:  01 July 2007

R. Domínguez-Tenreiro
Affiliation:
Department of Theoretical Physics, Universidad Autónoma de Madrid, 28049 Madrid, Spain email: rosa.dominguez@uam.es
F. J. Martínez-Serrano
Affiliation:
Department of Physics and C.A., Universidad Miguel Hernández, 03206 Elche, Spain
A. Serna
Affiliation:
Department of Physics and C.A., Universidad Miguel Hernández, 03206 Elche, Spain
M. Mollá
Affiliation:
Department of Fundamental Research, CIEMAT, 28040 Madrid, Spain
J. Oñorbe
Affiliation:
Department of Theoretical Physics, Universidad Autónoma de Madrid, 28049 Madrid, Spain email: rosa.dominguez@uam.es
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.

We report on an extension, through cosmological simulations, of the two-phase formation scenario for elliptical galaxies to classical spiral bulges. In particular, we analyze the possibility that the old stellar population of bulges forms in a fast phase, while the younger stellar component forms or is assembled in a slow phase, in part from disk material suffering instabilities and in part through satellite capture or mergers.

References

Athanassoula, E. 2005, MNRAS 358, 1477CrossRefGoogle Scholar
Carollo, C. M., Scarlata, C., Stiavelli, M., Wyse, R. F. G., & Mayer, L. 2007, ApJ 658, 960CrossRefGoogle Scholar
Domínguez-Tenreiro, R., Sáiz, A., & Serna, A. 2004, ApJ 611, L5CrossRefGoogle Scholar
Domínguez-Tenreiro, R., Oñorbe, J., Sáiz, A., Artal, H., Serna, A. 2006, ApJ 636, L77CrossRefGoogle Scholar
Drory, N. & Fisher, D-B. 2007, ApJ 664, 640CrossRefGoogle Scholar
Eggen, O.J., Lynden-Bell, D., & Sandage, A. 1962, ApJ 136, 749Google Scholar
Eliche-Moral, M. C., Balcells, M., Aguerri, J. & González-García, A. C. 2006, A&A 457, 91Google Scholar
Ellis, R. S., Abraham, R. G. & Dickinson, M. E. 2001, ApJ 551, 111CrossRefGoogle Scholar
Ferreras, I., Wyse, R. F. G. & Silk, J. 2003, MNRAS 345, 1381CrossRefGoogle Scholar
Jablonka, P., Gorgas, J. & Goudfrooij, P. 2007, A&A in pressGoogle Scholar
Keres, D., Katz, N., Weinberg, D., & Davé, R. 2005, MNRAS 363, 2CrossRefGoogle Scholar
Kormendy, J. & Kennicutt, R. C. 2004, ARAA 42, 603CrossRefGoogle Scholar
Mollá, M., Ferrini, F. & Gozzi, G. 2000, MNRAS 316, 345CrossRefGoogle Scholar
Oñorbe, J., Domínguez-Tenreiro, R., Sáiz, A., Serna, A., & Artal, H. 2005, ApJ 632, L570CrossRefGoogle Scholar
Salvador-Solé, E., Manrique, A., & Solanes, J. M. 2005, MNRAS 358, 901CrossRefGoogle Scholar
Serna, A., Domínguez-Tenreiro, R. & Sáiz, A. 2003, ApJ 597, 878CrossRefGoogle Scholar
Thomas, D., Greggio, L. & Bender, R. 1999, MNRAS 302, 537CrossRefGoogle Scholar
Wechsler, R. H. et al. 2002, ApJ 568, 52CrossRefGoogle Scholar
Wyse, R. F. G., Gilmore, G. & Franx, M. 1997, ARAA 35, 637CrossRefGoogle Scholar
Zhao, D. H., Mo, H. J., Jing, Y. P., & Borner, G. 2003, MNRAS 339, 127Google Scholar