Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999newa....4....1c&link_type=abstract
New Astronomy, vol. 4, no. 1, p. 1-20.
Astronomy and Astrophysics
Astronomy
8
Galaxies: Evolution, Galaxies: Formation, Galaxies: Halos, Galaxies: Photometry, Galaxies: Structure, Galaxies: Kinematics And Dynamics
Scientific paper
We performed smooth particle hydrodynamical simulations, including star formation and chemo-photometric evolution from the U to K band, of isolated collapsing triaxial systems. We analysed the dependence of the evolutionary paths on some initial conditions so far unexplored, such as the geometry of the collapsing system and the effect of a different ratio of baryonic mass to dark matter. We also outline the role of several parameters connected with the star formation rate, such as the initial mass function (IMF), which influences the energy input by supernovae explosions per stellar generation. By generating integrated colours and brightness profiles, which can be compared with the same observed galaxy properties, our results give further insight into the role of different parameters examined, such as the dependence of the star formation rate and related chemical enrichment on the IMF for systems with different total mass.
Curir Anna
Mazzei Paola
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