SDSS-IV/SPIDERS: A Catalogue of X-Ray Selected AGN Properties; Spectral Properties and Black Hole Mass Estimates for SPIDERS SDSS DR14 Type 1 AGN

Abstract

This work presents the catalogue of optical spectral properties for all X-ray selected SPIDERS active galactic nuclei (AGN) up to SDSS DR14. SPIDERS (SPectroscopic IDentification of eROSITA Sources) is an SDSS-IV programme that is currently conducting optical spectroscopy of the counterparts to the X-ray selected sources detected in the ROSAT all-sky survey and the XMM-Newton slew survey in the footprint of the Extended Baryon Oscillation Spectroscopic Survey (eBOSS). The SPIDERS DR14 sample is the largest sample of X-ray selected AGN with optical spectroscopic follow-up to date. The catalogue presented here is based on a clean sample of 7344 2RXS ($\bar{\mathrm{z}}$ = 0.5) and 1157 XMM-Newton slew survey ($\bar{\mathrm{z}}$ = 0.4) type 1 AGN with spectroscopic coverage of the H$\beta$ and/or MgII emission lines. Visual inspection results for each object in this sample are available from a combination of literature sources and the SPIDERS group, which provide both reliable redshifts and source classifications. The spectral regions around the H$\beta$ and MgII emission lines have been fit in order to measure both line and continuum properties, estimate bolometric luminosities, and provide black hole mass estimates using the single-epoch (or photoionisation) method. The use of both H$\beta$ and MgII allows black hole masses to be estimated up to z $\simeq$ 2.5. A comparison is made between the spectral properties and black hole mass estimates derived from H$\beta$ and MgII using the subsample of objects which have coverage of both lines in their spectrum. These results have been made publicly available as an SDSS-IV DR14 value added catalogue.

References in corpus (22)

• The 2.5 m Telescope of the Sloan Digital Sky Survey
• The Cosmic Evolution Survey (COSMOS) -- Overview
• A Catalog of Quasar Properties from SDSS DR7
• Some Aspects of Measurement Error in Linear Regression of Astronomical Data
• The X-ray-to-Optical Properties of Optically-Selected Active Galaxies Over Wide Luminosity and Redshift Ranges
• The Chandra Deep Field-South Survey: 7 Ms Source Catalogs
• Second ROSAT all-sky survey (2RXS) source catalogue
• The Sloan Digital Sky Survey Quasar Catalog: twelfth data release
• The X-ray Properties of the Most-Luminous Quasars from the Sloan Digital Sky Survey
• The Radius-Luminosity Relationship for Active Galactic Nuclei: The Effect of Host-Galaxy Starlight on Luminosity Measurements
• The AGN Black Hole Mass Database
• The first XMM-Newton slew survey catalogue: XMMSL1
• The Sloan Digital Sky Survey Reverberation Mapping Project: Technical Overview
• Correcting CIV-Based Virial Black Hole Masses
• A new method for determining the sensitivity of X-ray imaging observations and the X-ray number counts
• The Chandra COSMOS-Legacy survey: Source X-ray spectral properties
• AEGIS: Host Galaxy Morphologies of X-ray and Infrared-selected AGN at 0.2 < z < 1.2
• Observational Constraints on the Dependence of Radio-Quiet Quasar X-ray Emission on Black Hole Mass and Accretion Rate
• XMM-Newton observations of the Lockman Hole: X-ray source catalogue and number counts
• A Large, Uniform Sample of X-ray Emitting AGN from the ROSAT All-Sky and Sloan Digital Sky Surveys: the Data Release 5 Sample
• A Full Year's Chandra Exposure on SDSS Quasars from the Chandra Multiwavelength Project
• The sizes of BLRs and BH masses of double-peaked broad low-ionization emission line objects

Cited by in corpus (1)

• Exploring the Diversity of Type 1 Active Galactic Nuclei Identified in SDSS-IV/SPIDERS