[OIII] Emission Line Properties in a New Sample of Heavily Reddened Quasars at $z>2$

Abstract

We present VLT-SINFONI near infra-red spectra of 26 new heavily reddened quasar candidates selected from the UKIDSS-LAS, VISTA VHS and VIKING imaging surveys. This new sample extends our reddened quasar search to both brighter and fainter luminosities. 25 of the 26 candidates are confirmed to be broad line quasars with redshifts $0.7<z<2.6$ and dust extinctions $0.5<E(B-V)<3.0$. Combining with previously identified samples, we study the H$\alpha$, H$\beta$ and [OIII] emission line properties in 22 heavily reddened quasars with $L_{bol}\approx 10^{47}$ erg/s and $z>2$. We present the first comparison of the [OIII] line properties in high luminosity obscured quasars to a large sample of 111 unobscured quasars in the same luminosity and redshift range. Broad wings extending to velocities of 2500 km/s are seen in the [OIII] emission line profiles of our reddened quasars, suggesting that strong outflows are affecting the ionised gas kinematics. However, we find no significant difference between the kinematics of the [OIII] emission in reddened and unobscured quasars when the two samples are matched in luminosity and redshift. Our results are consistent with a model where quasar-driven outflows persist for some time after the obscuring dust has been cleared from along the line of sight. Assuming the amount of ionised gas in obscured and unobscured quasars is similar, we use the equivalent width distribution of the [OIII] emission to constrain the location of the obscuring dust in our reddened quasars. We find that the dust is most likely to be located on galactic scales, outside the [OIII] emitting region.

12 pages, 7 figures, plus Appendices. Accepted for publication in MNRAS

References in corpus (18)

• Cosmic Star Formation History
• A Cosmological Framework for the Co-Evolution of Quasars, Supermassive Black Holes, and Elliptical Galaxies: I. Galaxy Mergers & Quasar Activity
• A Catalog of Quasar Properties from SDSS DR7
• The Illustris simulation: the evolving population of black holes across cosmic time
• Kiloparsec-scale outflows are prevalent among luminous AGN: outflows and feedback in the context of the overall AGN population
• The WISSH Quasars Project I. Powerful ionised outflows in hyper-luminous quasars
• Correcting CIV-Based Virial Black Hole Masses
• X-shooter reveals powerful outflows in z~1.5 X-ray selected obscured quasi stellar objects
• Extremely Red Quasars in BOSS
• Heavily reddened type 1 quasars at z > 2 I: Evidence for significant obscured black-hole growth at the highest quasar luminosities
• Luminous K-band Selected Quasars from UKIDSS
• Spitzer Observations of Young Red Quasars
• The Discovery of Gas-Rich, Dusty Starbursts in Luminous Reddened Quasars at $z\sim 2.5$ with ALMA
• What produces the far-infrared/submm emission in the most luminous QSOs?
• Extreme star formation events in quasar hosts over $0.5<\text{z}<4$
• Kinematics of CIV and [OIII] emission in luminous high-redshift quasars
• UV-Luminous, Star-Forming Hosts of z~2 Reddened Quasars in the Dark Energy Survey
• Far-infrared emission in luminous quasars accompanied by nuclear outflows

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