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Cited by 216

The DOI matches its Crossref record; 9 of the 9 references it cites were found in a registry or an index.

THINK OUTSIDE THE COLOR BOX: PROBABILISTIC TARGET SELECTION AND THE SDSS-XDQSO QUASAR TARGETING CATALOG

Open access
Bovy, Jo, Hennawi, Joseph F., Hogg, David W., Myers, Adam D., Kirkpatrick, Jessica A., Schlegel, David J., Ross, Nicholas P., Sheldon, Erin S., McGreer, Ian D., Schneider, Donald P., Weaver, Benjamin A.·2011·The Astrophysical Journal

Abstract

We present the SDSS - XDQSO quasar targeting catalog for efficient flux-based quasar target selection down to the faint limit of the Sloan Digital Sky Survey ( SDSS ) catalog, even at medium redshifts (2.5 ≲ z ≲ 3) where the stellar contamination is significant. We build models of the distributions of stars and quasars in flux space down to the flux limit by applying the extreme-deconvolution method to estimate the underlying density. We convolve this density with the flux uncertainties when evaluating the probability that an object is a quasar. This approach results in a targeting algorithm that is more principled, more efficient, and faster than other similar methods. We apply the algorithm to derive low-redshift ( z < 2.2), medium-redshift (2.2 ⩽ z ⩽ 3.5), and high-redshift ( z >3.5) quasar probabilities for all 160,904,060 point sources with dereddened i -band magnitude between 17.75 and 22.45 mag in the 14,555 deg 2 of imaging from SDSS Data Release 8. The catalog can be used to define a uniformly selected and efficient low- or medium-redshift quasar survey, such as that needed for the SDSS-III 's Baryon Oscillation Spectroscopic Survey project. We show that the XDQSO technique performs as well as the current best photometric quasar-selection technique at low redshift, and outperforms all other flux-based methods for selecting the medium-redshift quasars of our primary interest. We make code to reproduce the XDQSO quasar target selection publicly available.

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Metadata

Authors
Bovy, J., Hennawi, J. F., Hogg, D. W., Myers, A. D., Kirkpatrick, J. A., Schlegel, D. J., Ross, N. P., Sheldon, E. S., McGreer, I. D., Schneider, D. P., & Weaver, B. A.
Venue
The Astrophysical Journal
Published
2011-02-22
Volume
729
Issue
2
Pages
141
ISSN
  • 0004-637X (ISSN-L)
  • 1538-4357
OpenAlex
W2026154763
Cited by
216
References
9
FWCI
12.62
Type
journal article
Language
en
Open access
bronze

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Bovy, J., Hennawi, J. F., Hogg, D. W., Myers, A. D., Kirkpatrick, J. A., Schlegel, D. J., Ross, N. P., Sheldon, E. S., McGreer, I. D., Schneider, D. P., & Weaver, B. A. (2011). THINK OUTSIDE THE COLOR BOX: PROBABILISTIC TARGET SELECTION AND THE SDSS-XDQSO QUASAR TARGETING CATALOG. The Astrophysical Journal. https://doi.org/10.1088/0004-637x/729/2/141

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