Possible Evidence of the Radio AGN Quenching of Neighboring Galaxies at z $\sim$ 1

Abstract

Using 57 Radio Active Galactic nuclei (RAGN) at 0.55 $\le$ z $\le$ 1.3 drawn from five fields of the Observations of Redshift Evolution in Large Scale Environments (ORELSE) survey, we study the effect of injection of energy from outbursts of RAGN on their spectroscopically-confirmed neighboring galaxies (SNGs). We observe an elevated fraction of quenched neighbors (fq) within 500 kpc projected radius of RAGN in the most dense local environments compared to those of non-RAGN control samples matched to the RAGN population in colour, stellar mass, and local environment at 2$\sigma$ significance. Further analyses show that there are offsets at similar significance between fqs of RAGN-SNGs and the appropriate control samples for galaxies specifically in cluster environments and those hosted by most massive cluster galaxies, which tentatively suggests that some negative feedback from the RAGN is occurring in these dense environments. In addition, we find that the median radio power of RAGN increases with increasing local overdensity, an effect which may lend itself to the quenching of neighboring galaxies. Furthermore, we find that, in the highest local overdensities, the fq of the sub-sample of lower stellar mass RAGN-SNGs is larger than that of the higher stellar mass RAGN-SNGs sub-sample, which indicates a more pronounced effect from RAGN on lower stellar mass galaxies. We propose a scenario in which RAGN residing within clusters might heat the intracluster medium (ICM) affecting both in situ star formation and any inflowing gas that remains in their neighboring galaxies.

submitted to MNRAS, 15 pages, 2 tables and 6 figures, comments welcome

References in corpus (15)

• EAZY: A Fast, Public Photometric Redshift Code
• Heating Hot Atmospheres with Active Galactic Nuclei
• An ultra-deep near-infrared spectrum of a compact quiescent galaxy at z=2.2
• Subaru Deep Survey V. A Census of Lyman Break Galaxies at z=4 and 5 in the Subaru Deep Fields: Photometric Properties
• On the prevalence of radio-loud AGN in brightest cluster galaxies: implications for AGN heating of cooling flows
• The Galaxy Content of SDSS Clusters and Groups
• Star formation quenching in simulated group and cluster galaxies: When, how, and why?
• The Observations of Redshift Evolution in Large Scale Environments (ORELSE) Survey : I. The Survey Design and First Results on Cl 0023+0423 at z = 0.84 and RX J1821.6+6827 at z = 0.82
• VIMOS Ultra-Deep Survey (VUDS): Witnessing the Assembly of a Massive Cluster at z~3.3
• The Complex Structure of the Cl 1604 Supercluster at z~0.9
• Glimpsing the Imprint of Local Environment on the Galaxy Stellar Mass Function
• Suppressing cluster cooling flows by self-regulated heating from spatially distributed population of AGNs
• Serendipitous Discovery of an Overdensity of Lyman-Alpha Emitters at z~4.8 in the Cl1604 Supercluster Field
• The Properties of Radio Galaxies and the Effect of Environment in Large Scale Structures at $z\sim 1$
• X-Ray Emitting Active Galactic Nuclei from z = 0.6-1.3 in the Intermediate and High-Density Environments of the ORELSE Survey

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