The Impact of Disturbed Galaxy Clusters on the Kinematics of Active Galactic Nuclei
arXiv:2010.04498 · doi:10.1093/mnras/staa3154
Abstract
We produce a kinematic analysis of AGN-hosting cluster galaxies from a sample 33 galaxy clusters selected using the X-ray Clusters Database (BAX) and populated with galaxies from the Sloan Digital Sky Survey (SDSS) Data Release 8 (DR8). The 33 galaxy clusters are delimited by their relative intensity of member galaxy substructuring as a proxy to core merging to derive two smaller sub-samples of 8 dynamically active (merging) and 25 dynamically relaxed (non-merging) states. The AGN were selected for each cluster sub-sample by employing the WHAN diagram to the strict criteria of log([NII]/H) and EW 6Å, providing pools of 70 merging and 225 non-merging AGN sub-populations. By co-adding the clusters to their respective dynamical states to improve the signal-to-noise of our AGN sub-populations we find that merging galaxy clusters on average host kinematically active AGN between 0-1.5 as , where their velocity dispersion profile (VDP) presents a significant deviation from the non-AGN sub-population VDP by . This result is indicative that the AGN-hosting cluster galaxies have recently coalesced onto a common potential. Further analysis of the composite distributions illustrate non-merging AGN-hosting sub-populations have, on average, already been accreted and predominantly lie within backsplash regions of the projected phase-space. This suggests merging cluster dynamical states hold relatively younger AGN sub-populations kinematically compared with those found in non-merging cluster dynamical states.
Accepted for publication in the Monthly Notices of the Royal Astronomical Society; 14 pages, 6 figures
References in corpus (27)
- UV Star Formation Rates in the Local Universe
- Galaxy Zoo: the dependence of morphology and colour on environment
- The Importance of Satellite Quenching for the Build-Up of the Red Sequence of Present Day Galaxies
- Hot and cold gas accretion and feedback in radio-loud active galaxies
- On the prevalence of radio-loud AGN in brightest cluster galaxies: implications for AGN heating of cooling flows
- LoCuSS: The slow quenching of star formation in cluster galaxies and the need for pre-processing
- Ram pressure stripping of disc galaxies orbiting in clusters. I. Mass and radius of the remaining gas disc
- Ram pressure feeding super-massive black holes
- Are galactic star formation and quenching governed by local, global or environmental phenomena?
- The Three Hundred Project: Backsplash galaxies in simulations of clusters
- RASS-SDSS Galaxy Cluster Survey. V. The X-ray-Underluminous Abell Clusters
- The origin of HI-deficiency in galaxies on the outskirts of the Virgo cluster. I. How far can galaxies bounce out of clusters?
- MC: Boosted AGN and star-formation activity in CIZA J2242.8+5301, a massive post-merger cluster at z=0.19
- Galaxy pairs in the Sloan Digital Sky Survey - XII: The fuelling mechanism of low excitation radio-loud AGN
- Galaxy And Mass Assembly (GAMA): Active Galactic Nuclei in Pairs of Galaxies
- Star formation in the massive cluster merger Abell 2744
- GASP XIX: AGN and their outflows at the center of jellyfish galaxies
- A Link Between Ram Pressure Stripping and Active Galactic Nuclei
- Triggering Active Galactic Nuclei in galaxy clusters
- Galaxy And Mass Assembly (GAMA): The environments of high- and low- excitation radio galaxies
- Modelling narrow-line regions of active galaxies in the Sloan Digital Sky Survey - I.Sample selection and physical conditions
- Galaxy cluster mergers as triggers for the formation of jellyfish galaxies: case study of the A901/2 system
- Galaxy And Mass Assembly (GAMA): The effect of galaxy group environment on active galactic nuclei
- Chandra Observation of Abell 2065: An Unequal Mass Merger?
- Dynamical history of a binary cluster: Abell 3653
- Classification and Evolution of Galaxies According to the Dynamical State of Host Clusters and Galaxy Luminosities
- The Rotational Profiles of Cluster Galaxies