VizieR Online Data Catalog: A value-added catalog for SDSS DR16 quasars at z<0.7 (Toba+, 2021)
Abstract
In this work, we focus on spectroscopically confirmed type 1 quasars whose Lbol, MBH, and λEdd can be securely estimated. We sampled 37181 quasars from the SDSS DR16Q (v4; see VII/289) and compiled optical to mid-IR (MIR) photometry from 2MASS, UKIDSS and WISE; see Section 2.2.
To derive IR luminosity contributed only from AGN dust torus (LIRtorus), we conducted the SED fitting by considering the energy balance between the UV/optical and IR. We employed a new version of Code Investigating GALaxy Emission (CIGALE) so-called X-CIGALE (Yang+ 2020MNRAS.491..740Y), see Section 2.3. In order to derive MBH, Lbol, and λEdd of our quasar sample, we conducted a spectral fitting to SDSS spectra by using the Quasar Spectral Fitting package (QSFit v1.3.0; Calderone+ 2017MNRAS.472.4051C). See Section 2.4. (1 data file).- Publication:
-
VizieR Online Data Catalog
- Pub Date:
- October 2022
- DOI:
- 10.26093/cds/vizier.19120091
- Bibcode:
- 2022yCat..19120091T
- Keywords:
-
- QSOs;
- Redshifts;
- Photometry: SDSS;
- Photometry: infrared;
- Equivalent widths;
- Black holes