Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006aipc..847..371c&link_type=abstract
ORIGIN OF MATTER AND EVOLUTION OF GALAXIES: International Symposium on Origin of Matter and Evolution of Galaxies 2005: New Hori
Astronomy and Astrophysics
Astrophysics
Star Formation, Luminosities, Magnitudes, Effective Temperatures, Colors, And Spectral Classification, Supernovae, Origin, Formation, Evolution, Age, And Star Formation
Scientific paper
By means of detailed galactic chemical and photometric evolution models, we study the star formation and metal production in galaxies of different morphpological types, namely elliptical, spirals and dwarf irregulars. We analyze the cosmic evolution of the galaxy luminosity density in various bands, comparing the predictions by our pure-luminosity evolution (PLE) scenario with the ones coming from a semi-analythical hierarchical model (SAM), predicting strong galaxy density evolution. Once corrections for dust extinction are taken into account, the PLE models can reproduce the UV luminosity density observed at z >= 3, whereas the hierarchical SAM underestimates it. We study the evolution of the cosmic type Ia and II Supernova rate, showing that our pure-luminosity evolution picture accounts for most of the current observations. Finally, we estimate the total metal density at redshift z = 0, showing that a Salpeter IMF allows us to reproduce the local metal inventory.
Calura Francesco
Matteucci Francesca
No associations
LandOfFree
Cosmic history of star formation and metal production does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Cosmic history of star formation and metal production, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cosmic history of star formation and metal production will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1136803