The Active Galactic Nuclei in the Hobby-Eberly Telescope Dark Energy Experiment Survey (HETDEX) III. A red quasar with extremely high equivalent widths showing powerful outflows

Abstract

We report an Active Galactic Nucleus (AGN) with extremely high equivalent width (EW), EW(LyA+NV,rest)>921 AA in the rest-frame, at z~2.24 in the Hobby-Eberly Telescope Dark Energy Experiment Survey (HETDEX) as a representative case of the high EW AGN population. The continuum level is a non-detection in the HETDEX spectrum, thus the measured EW is a lower limit. The source is detected with significant emission lines (>7sigma) at LyA+NV, CIV, and moderate emission line (~4sigma) at HeII within the wavelength coverage of HETDEX (3500 AA - 5500 AA). The r-band magnitude is 24.57 from the Hyper Suprime-Cam-HETDEX joint survey with a detection limit of r=25.12 at 5sigma. The LyA emission line spans a clearly resolved region of ~10 arcsec (85 kpc) in diameter. The LyA line profile is strongly double peaked. The spectral decomposed blue gas and red gas Ly$\alpha$ emission are separated by ~1.2 arcsec (10.1 kpc) with a line-of-sight velocity offset of ~1100 km/s. This source is probably an obscured AGN with powerful winds.

arXiv comment10 pages, 5 figures, 1 table, accepted for publication in ApJ

References in corpus (27)

• Coevolution (Or Not) of Supermassive Black Holes and Host Galaxies
• The SDSS Quasar Survey: Quasar Luminosity Function from Data Release Three
• Mid-Infrared Selection of AGN with the Wide-Field Infrared Survey Explorer. I. Characterizing WISE-Selected AGN in COSMOS
• The Chandra Deep Field-South Survey: 7 Ms Source Catalogs
• Second Data Release of the Hyper Suprime-Cam Subaru Strategic Program
• The LOFAR Two-metre Sky Survey -- V. Second data release
• The Sloan Digital Sky Survey Quasar Catalog: Fourteenth Data Release
• A comparative HST imaging study of the host galaxies of radio-quiet quasars, radio-loud quasars and radio galaxies: Paper I
• The Population of Viscosity- and Gravitational Wave-Driven Supermassive Black Hole Binaries Among Luminous AGN
• Spectral properties of quasars from Sloan Digital Sky Survey data release 14: The catalog
• Observations of the Lyman-$\alpha$ Universe
• The 2 Ms Chandra Deep Field-North Survey and the 250 ks Extended Chandra Deep Field-South Survey: Improved Point-Source Catalogs
• The HETDEX Instrumentation: Hobby-Eberly Telescope Wide Field Upgrade and VIRUS
• Discovery of an Enormous Ly$\alpha$ nebula in a massive galaxy overdensity at $z=2.3$
• Observable Signatures of a Black Hole Ejected by Gravitational Radiation Recoil in a Galaxy Merger
• Properties of the Multiphase Outflows in Local (Ultra)luminous Infrared Galaxies
• The Hobby-Eberly Telescope Dark Energy Experiment (HETDEX) Survey Design, Reductions, and Detections
• Extremely Red Quasars in BOSS
• Extremely Red Quasars from SDSS, BOSS and WISE: Classification of Optical Spectra
• A Statistical Study of Rest-frame Optical Emission Properties in Luminous Quasars at 2.0 < z < 2.5
• Origins and Demographics of Wandering Black Holes
• HST Images of Nearby Luminous Quasars
• Metal enrichment in the circumgalactic medium and Lyα haloes around quasars at z $\sim$3
• Powerful winds in high-redshift obscured and red quasars
• B2 0902+34: A Collapsing Protogiant Elliptical Galaxy at z=3.4
• Probing the Inner Circumgalactic Medium and Quasar Illumination around the Reddest `Extremely Red Quasar' (ERQ)
• The Active Galactic Nuclei in the Hobby-Eberly Telescope Dark Energy Experiment Survey (HETDEX) I. Sample selection

Cited by in corpus (1)

• Using Lyman Alpha Absorption to Measure the Intensity and Variability of $z\sim 2.4$ Ultraviolet Background Light