The importance of galaxy interactions in triggering type II quasar activity

Abstract

We present deep Gemini GMOS-S optical broad-band images for a complete sample of 20 SDSS selected type II quasars with redshifts 0.3 < z < 0.41 and [OIII] emission line luminosities greater than 10^8.5 solar luminosities. We use these images to determine the significance of galaxy interactions in triggering nuclear activity, finding that 15 (75%) show evidence for interaction in the form of tails, shells, double nuclei etc. The median surface brightness of the features is 23.4 mag arcsec sq and the range is 20.9-24.7 mag arcsec sq. We find a similar rate of interaction in the type II quasars as in a comparison sample of quiescent early-type galaxies at similar redshift (67 +/- 14%). However the surface brightness of the detected features is up to 2 magnitudes brighter for the type II quasars than for the quiescent early-types, which have surface brightnesses in the range 22.1-26.1 mag arcsec sq and a median surface brightness 24.3 mag arcsec sq. This may indicate that the mergers witnessed in the comparison sample galaxies could have different progenitors, or we may be viewing the interactions at different stages. We also compare our results with a sample of radio-loud AGN and find a higher rate of interaction signatures (95 +/- 21%) than in the type II quasars, but a very similar range of surface brightnesses for the morphological features (20.9-24.8 mag arcsec sq), possibly indicating a similarity in the types of triggering interactions. The range of features detected in the type II quasars suggests that AGN activity can be triggered before, during or after the coalescence of the black holes. Overall, our results are consistent with the idea that galaxy interaction plays an important role in the triggering of quasar activity.

22 pages,8 figures, accepted for publication in MNRAS

References in corpus (13)

• A Cosmological Framework for the Co-Evolution of Quasars, Supermassive Black Holes, and Elliptical Galaxies: I. Galaxy Mergers & Quasar Activity
• Radio-Loudness of Active Galactic Nuclei: Observational Facts and Theoretical Implications
• Galaxy Merger Morphologies and Time-Scales from Simulations of Equal-Mass Gas-Rich Disc Mergers
• The bulk of the black hole growth since z~1 occurs in a secular universe: No major merger-AGN connection
• Ongoing Assembly of Massive Galaxies by Major Merging in Large Groups and Clusters from the SDSS
• Evidence for Merger Remnants in Early-Type Host Galaxies of Low-Redshift QSOs
• Type II Quasars from the Sloan Digital Sky Survey: V. Imaging host galaxies with the Hubble Space Telescope
• The duty cycle of local radio galaxies
• Exploring the evolutionary paths of the most massive galaxies since z~2
• The properties of the young stellar populations in powerful radio galaxies at low and intermediate redshifts
• Tidal debris in elliptical galaxies as tracers of mergers with disks
• The Growth of Black Holes: Insights From Obscured Active Galaxies
• On the nature of the extragalactic number counts in the K-band

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• Testing the Evolutionary Link between Type 1 and Type 2 Quasars with Measurements of the Interstellar Medium
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• A Multiwavelength Study of Active Galactic Nuclei in Post-Merger Remnants
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• The interconnection between galaxy mergers, AGN activity and rapid quenching of star formation in simulated post-merger galaxies
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• The Connection between Mergers and AGN Activity in Simulated and Observed Massive Galaxies
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• The Relation between Morphological Asymmetry and Nuclear Activity in Low-redshift Galaxies
• The host galaxies of luminous type 2 AGN at $z\sim$0.3-0.4
• A Tale of Two Narrow-Line Regions: Ionization, Kinematics, and Spectral Energy Distributions for a Local Pair of Merging Obscured Active Galaxies
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• Semi-analytic modelling of AGNs: auto-correlation function and halo occupation
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• Measurable Relationship Between Bright Galaxies and Their Faint Companions in WHL J085910.0+294957, a Galaxy Cluster at z = 0.30: Vestiges of Infallen Groups?
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• Host galaxy and nuclear properties of IR-selected AGNs with and without outflow signatures
• Exploring the physical properties of Type II Quasar candidates at intermediate redshifts with CIGALE
• Interactions among intermediate redshift galaxies. The case of SDSSJ134420.86+663717.8
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