Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Sloan Digital Sky Survey Reverberation Mapping Project: Sample
  Characterization   We present a detailed characterization of the 849 broad-line quasars from the
Sloan Digital Sky Survey Reverberation Mapping (SDSS-RM) project. Our quasar
sample covers a redshift range of 0.1<z<4.5 and is flux-limited to i_PSF<21.7
without any other cuts on quasar properties. The main sample characterization
includes: 1) spectral measurements of the continuum and broad emission lines
for individual objects from the coadded first-season spectroscopy in 2014; 2)
identification of broad and narrow absorption lines in the spectra; 3) optical
variability properties for continuum and broad lines from multi-epoch
spectroscopy. We provide improved systemic redshift estimates for all quasars,
and demonstrate the effects of signal-to-noise ratio on the spectral
measurements. We compile measured properties for all 849 quasars along with
supplemental multi-wavelength data for subsets of our sample from other
surveys. The SDSS-RM sample probes a diverse range in quasar properties, and
shows well detected continuum and broad-line variability for many objects from
first-season monitoring data. The compiled properties serve as the benchmark
for follow-up work based on SDSS-RM data. The spectral fitting tools are made
public along with this work.

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The categories of this paper are: hep-ph
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The categories of this paper are: alg-geom
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The categories of this paper are: eess
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The categories of this paper are: q-alg
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The categories of this paper are: solv-int
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The categories of this paper are: bayes-an
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The categories of this paper are: nlin
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The categories of this paper are: q-fin
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The categories of this paper are: comp-gas
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The categories of this paper are: cond-mat
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The categories of this paper are: quant-ph
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The categories of this paper are: cs
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The categories of this paper are: math-ph
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The categories of this paper are: chao-dyn
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The categories of this paper are: cmp-lg
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The categories of this paper are: adap-org