Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Stellar masses, star formation rates, metallicities and AGN properties
  for 200,000 galaxies in the SDSS Data Release Two (DR2)   By providing homogeneous photometric and spectroscopic data of high quality
for very large and objectively selected samples of galaxies, the Sloan Digital
Sky Survey allows statistical studies of the physical properties of galaxies
and AGN to be carried out at an unprecedented level of precision and detail.
Here we publicly release catalogues of derived physical properties for 211,894
galaxies, including 33,589 narrow-line AGN. These are complete samples with
well understood selection criteria drawn from the normal galaxy spectroscopic
sample in the second SDSS public data release (DR2). We list properties
obtained from the SDSS spectroscopy and photometry using modelling techniques
presented in papers already published by our group. These properties include:
stellar masses; stellar mass-to-light ratios; attenuation of the starlight by
dust; indicators of recent major starbursts; current total and specific
star-formation rates, both for the regions with spectroscopy and for the
galaxies as a whole; gas-phase metallicities; AGN classifications based on the
standard emission line ratio diagnostic diagrams and AGN [OIII] emission line
luminosities. We also list our own measurements of absorption line indices and
emission line fluxes from which these quantities were derived, together with a
few quantities from the standard SDSS pipelines which play an important role in
our work. Many other observed properties of these galaxies can be obtained from
the SDSS DR2 catalogues themselves. We will add further physical properties to
this release site as the relevant papers are accepted for publication.
Catalogies containing these parameters may be accessed at
http://www.mpa-garching.mpg.de/SDSS/.

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The categories of this paper are: supr-con
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The categories of this paper are: gr-qc
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The categories of this paper are: hep-lat
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The categories of this paper are: econ
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The categories of this paper are: math
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The categories of this paper are: math-ph
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The categories of this paper are: q-fin
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The categories of this paper are: cond-mat
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The categories of this paper are: physics
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The categories of this paper are: nucl-ex
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The categories of this paper are: quant-ph
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The categories of this paper are: patt-sol
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The categories of this paper are: alg-geom
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The categories of this paper are: chem-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: q-bio