English

QSOs in the combined SDSS/GALEX database

Astrophysics 2009-11-13 v1

Abstract

We discuss selection of QSO candidates from the combined SDSS and GALEX catalogues. We discuss properties of QSOs within the combined sample, and note uncertainties in number counts and completeness, compared with other SDSS-based samples. We discuss colour and other properties with redshift within the sample and the SEDs for subsets. We estimate the numbers of faint QSOs that are classified as extended objects in the SDSS, and consequent uncertainties that follow.

Cite

@article{arxiv.0803.1177,
  title  = {QSOs in the combined SDSS/GALEX database},
  author = {J. B. Hutchings and L. Bianchi},
  journal= {arXiv preprint arXiv:0803.1177},
  year   = {2009}
}

Comments

To appear in PASP

R2 v1 2026-06-21T10:19:43.673Z