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.
(1 data file).
IAUC 8268 available at Central Bureau for Astronomical Telegrams.
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…
Not Available
We report the discovery of peculiar features in the optical spectrum of
4C+22.25, a flat spectrum radio quasar at z = 0.4183 observed in the
Sloan Digital Sky Survey and in a dedicated spectroscopic follow-up from
the Nordic Optical Telescope. The Hβ and Hα lines show broad
profiles (FWHM ~ 12,000 km s<SUP>-1</SUP>), faint fluxes, and extreme
offsets (Δv = 8700 ± 1300 km s<SUP>-1</SUP>) with respect
to the narrow emission lines. These features show no significant
variation in a time lag of ~3.1 yr (rest frame). We rule out possible
interpretations based on the…
