Hostname: page-component-586b7cd67f-gb8f7 Total loading time: 0 Render date: 2024-11-29T13:55:46.948Z Has data issue: false hasContentIssue false
  • English
  • Français

Population Synthesis in a Universe of Interacting Galaxies

Published online by Cambridge University Press:  25 May 2016

Gustavo A. Bruzual
Gustavo A. Bruzual*
Affiliation:
Centro de Investigaciones de Astronomia (C.I.D.A.), Apartado Postal 264, Mérida, Venezuela

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.

The traditional view in population synthesis and evolutionary synthesis models assumes that galaxies can be considered closed systems. Thus, the evolution of the stellar population in galaxies which do not interact with the environment (including other galaxies) is described by the so called Pure Luminosity Evolution (PLE) model. As we have heard several times during this conference (and before), galaxies do interact and very few galaxies are expected to evolve passively. Early-type galaxies seem to behave closer to the PLE model than later types, but E galaxies in the bright phase predicted by this model at the galaxy formation epoch have not been observed. Most likely E galaxies do not form all their stars in short lived initial bursts (several talks in this conference). Number, size, and luminosity evolution is required to understand late-type and Irr galaxies. The PLE model is unable to reproduce the number counts, and color and redshift distributions of the galaxies in the HDF (Pozzetti et al. 1997).

Type
Deep Fields & Evolution
Information
Symposium - International Astronomical Union , Volume 186: Galaxy Interactions at High and Low Redshift , 1999 , pp. 459 - 466
Copyright
Copyright © Kluwer 1999 

References

Allard, F., & Hauschildt, P.H. 1995, ApJ, 445, 433 Google Scholar
Alongi, M., Bertelli, G., Bressan, A., Chiosi, C., Fagotto, F., Greggio, L., & Nasi, E. 1993, A&AS, 97, 851 Google Scholar
Bessell, M.S., Brett, J., Scholtz, M., & Wood, P. 1989, A&AS, 77, 1 Google Scholar
Bessell, M.S., Brett, J., Scholtz, M., & Wood, P. 1991, A&AS, 89, 335 Google Scholar
Bressan, A., Fagotto, F., Bertelli, G., & Chiosi, C. 1993, A&AS, 100, 647 Google Scholar
Bruzual, A.G. & Chariot, S. 1993, ApJ, 405, 538 (BC93) Google Scholar
Bruzual, A.G. & Chariot, S. 1997, ApJ, in preparation (BC97) Google Scholar
Charbonnel, C., Meynet, G., Maeder, A., & Schaerer, D., 1996, A&AS, 115, 339 Google Scholar
Fagotto, F., Bressan, A., Bertelli, G., & Chiosi, C. 1994a, A&AS, 100, 647 Google Scholar
Fagotto, F., Bressan, A., Bertelli, G., & Chiosi, C. 1994b, A&AS, 104, 365 Google Scholar
Fagotto, F., Bressan, A., Bertelli, G., & Chiosi, C. 1994c, A&AS, 105, 29 Google Scholar
Fluks, M. et al. 1994, A&AS, 105, 311 Google Scholar
Girardi, L., Bressan, A., Chiosi, C., Bertelli, G., & Nasi, E. 1996, A&AS, 117, 113 Google Scholar
Greggio, L., & Renzini, A. 1990, ApJ, 364, 35 Google Scholar
Gunn, J.E. & Stryker, L.L. 1983, ApJS, 52, 121 Google Scholar
Iglesias, C.A., Rogers, F.J., & Wilson, B.G. 1992, ApJ, 397, 717 CrossRefGoogle Scholar
Iglesias, C.A., & Rogers, F.J. 1993, ApJ, 412, 752 Google Scholar
Kurucz, R. 1995, private communication Google Scholar
Lejeune, T., Buser, R. 1996, Baltic Astronomy, 5, 399 Google Scholar
Lejeune, T., Cuisinier, F., & Buser, R. 1996, in “{A Data Base for Galaxy Evolution Modeling”{, eds. Leitherer, C. et al., PASP, 108, 996 Google Scholar
Lejeune, T., Cuisinier, F., & Buser, R. 1997a, A&AS, 125, 229 Google Scholar
Lejeune, T., Cuisinier, F., & Buser, R. 1997b, A&A, in preparation (LCB97b) Google Scholar
Pozzetti, L., Madau, P., Zamorani, G., Ferguson, H.C., & Bruzual, A. G. 1997, MNRAS, in press Google Scholar
Salpeter, E.E. 1955, ApJ, 121, 161 Google Scholar
Schaller, G., Schaerer, D., Meynet, G., & Maeder, A. 1992, A&AS 96, 269 Google Scholar
Smecker-Hane, T.A., Stetson, P.B., Hesser, J.E., and VandenBerg, D.A. 1995, in “{From Stars to Galaxies: The Impact of Stellar Physics on Galaxy Evolution”{, eds. Leitherer, C., Fritze-von Alvensleben, U., and Huchra, J., ASP Conf. Ser., 98, 328 Google Scholar
Worthey, G. 1994, ApJS, 95, 107 Google Scholar