Title:  

Star Formation Rate in Nearby and z~0.7 Galaxies


Marianne Takamiya
University of Hawaii at Hilo


Abstract:

From the morphology of galaxies at z~0,  I will present how 
the average star formation rate could be estimated from one-band 
imagery. This method is extended to moderate redshift galaxies in the 
HDF-N (B<25mag) and the results are compared to simulated images (with 
no evolution) of the low redshift galaxy population. The main result is 
that most of the HDF-N galaxies are similar to nearby normal galaxies. 
Dwarf galaxies with high star formation rates (like NGC 4449) are not 
detectable at z~0.5 and therefore can not account for the blue excess in 
the galaxy counts at this flux limit.