VizieR Online Data Catalog: A complete sample of broad-line AGN from SDSS-DR7 (Liu+, 2019)
Abstract
The SDSS is a comprehensive imaging and spectroscopic survey using a dedicated 2.5m telescope located at Apache Point Observatory to image over 10000deg2 of sky and to perform follow-up spectroscopic observations. The telescope uses a wide-field imager (filters ugriz) and a 640-fiber-fed pair of multiobjects double spectrographs covering the wavelength 3800-9200Å with a resolution varying from 1850 to 2200.
We have compiled a sample of 14584 type 1 AGNs based on detection of a broad Hα line from a total of about one million SDSS DR7 spectroscopic objects. Part I of the catalog (see Table 1) is composed of the basic information of these sources. Part II of the catalog (see Table 2) includes the emission line measurements derived from the spectral analysis in this work. Finally, in part III of the catalog (Table 3), we supplement photometric measurements in the optical, ultraviolet (UV), near-infrared (NIR), mid-infrared (MIR), X-ray, and radio drawn from GALEX, 2MASS, WISE, ROSAT, and FIRST; see Section 4.3.3 for further details. (3 data files).- Publication:
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VizieR Online Data Catalog
- Pub Date:
- November 2019
- DOI:
- 10.26093/cds/vizier.22430021
- Bibcode:
- 2019yCat..22430021L
- Keywords:
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- Active gal. nuclei;
- Spectra: optical;
- Redshifts;
- Equivalent widths;
- Photometry: SDSS;
- Photometry: infrared;
- Ultraviolet;
- Radio sources;
- X-ray sources;
- Surveys