We present the online and the offline data reduction system for OSIRIS,
the optical multi-mode instrument for GranTeCan. The software is written
in Python and invokes PyRAF tasks which have been optimized for the
instrument. We review the characteristics of the instrument and of the
software. We will also present the improvements which are foreseen for
both the instrument and the software. The flexibility of the software
makes it easy to be adapted to other telescopes/instruments.
Physical parameters for 135 early-type galaxies in the Extended Groth
Strip (EGS). For each galaxy equatorial coordinates, total magnitudes in
B and g-bands, redshift, velocity dispersion, effective radius, surface
brightness, stellar mass, Sersic index, type (elliptical or lenticular)
and signal-to-noise of the spectrum are given.
Context. Star formation rate (SFR), metallicity, and stellar mass are
among the most important parameters of star-forming (SF) galaxies
characterizing their formation and evolution. They are known to be
related to each other both at low and high redshift in the
mass-metallicity, mass-SFR, and metallicity-SFR relations. <BR /> Aims:
We demonstrate the existence of a plane in a 3D parameter space defined
by the axes SFR [log (SFR)(M<SUB>ȯ</SUB> yr<SUP>-1</SUP>)] , gas
metallicity [12 + log (O/H)], and stellar mass…
