English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We study the 850um emission in X-ray selected AGN in the 2 sq-deg COSMOSfield using new data from the SCUBA-2 Cosmology Legacy Survey. We find 19 850umbright X-ray AGN in a high-sensitivity region covering 0.89 sq-deg with fluxdensities of S850=4-10 mJy. The 19 AGN span the full range in redshift and hardX-ray luminosity covered by the sample - 0.7<z<3.5 and 43.2<log10(LX) <45. Wereport a highly significant stacked 850um detection of a hard X-rayflux-limited population of 699 z>1 X-ray AGN - S850=0.71+/-0.08mJy. We exploretrends in the stacked 850um flux densities with redshift, finding no evolutionin the average cold dust emission over the redshift range probed. For Type 1AGN, there is no significant correlation between the stacked 850um flux andhard X-ray luminosity. However, in Type 2 AGN the stacked submm flux is afactor of 2 higher at high luminosities. When averaging over all X-rayluminosities, no significant differences are found in the stacked submm fluxesof Type 1 and Type 2 AGN as well as AGN separated on the basis of X-rayhardness ratios and optical-to-infrared colours. However, at log10(LX) >44.4,dependences in average submm flux on the optical-to-infrared colours becomemore pronounced. We argue that these high luminosity AGN represent a transitionfrom a secular to a merger-driven evolutionary phase where the star formationrates and accretion luminosities are more tightly coupled. Stacked AGN 850umfluxes are compared to the stacked fluxes of a mass-matched sample of K-bandselected non-AGN galaxies. We find that at 10.5<log10(M*/M0)<11.5, the non-AGN850um fluxes are 1.5-2x higher than in Type 2 AGN of equivalent mass. Wesuggest these differences are due to the presence of massive dusty, redstarburst galaxies in the K-band selected non-AGN sample, which are not presentin optically selected catalogues covering a smaller area.

Cold Dust Emission from X-ray AGN in the SCUBA-2 Cosmology Legacy Survey: Dependence on Luminosity, Obscuration & AGN Activity