Astronomy and Astrophysics – Astrophysics
Scientific paper
May 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001sf2a.conf..323p&link_type=abstract
Abstracts from SF2A-2001: Semaine de l'Astrophysique Francaise, meeting held in Lyon, France, May 28-June 1st, 2001, Eds.: F. Co
Astronomy and Astrophysics
Astrophysics
Scientific paper
I'll show how we can estimate the evolution of the star formation rate with the redshift thanks to several samples at low redshift (z < 1). These galaxies observations in the visible (spectra from ESO) and in the IR (IRAS, ISO) enable us to compare three important indicators: - Hα line, a very direct observation, though we cannot explore a vast domain of lambda with it, - IR flux, - OII line, often used when Hα is not visible. The comparison of these methods leads to the estimation of the role of dust in this kind of observations. Also, we will see the importance of observing large samples at many wavelengths, as well as the importance of making consistent models.
Dennefeld Michel
Patris Julie
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