The Overdense Environments of WISE-Selected, Ultra-Luminous, High-Redshift AGN in the Submillimeter
Artikel i vetenskaplig tidskrift, 2017

The environments around WISE-selected hot dust obscured galaxies (Hot DOGs) and WISE/radio-selected active galactic nuclei (AGNs) at average redshifts of z = 2.7 and z = 1.7, respectively, were found to have overdensities of companion Submillimeter-selected sources. The overdensities were of ~2–3 and ~5–6, respectively, compared with blank field submm surveys. The space densities in both samples were found to be overdense compared to normal star-forming galaxies and Submillimeter galaxies (SMGs). All of the companion sources have consistent mid-IR colors and mid-IR to submm ratios to SMGs. Monte Carlo simulations show no angular correlation, which could indicate protoclusters on scales larger than the SCUBA-2 1.5 arcmin scale maps. WISE-selected AGNs appear to be good indicators of overdense areas of active galaxies at high redshift.

submillimeter: galaxies

infrared: galaxies

galaxies: active

galaxies: quasars: general

galaxies: clusters: general

galaxies: high-redshift

Författare

Suzy Jones

Chalmers, Rymd- och geovetenskap, Extragalaktisk astrofysik

Frontiers in Astronomy and Space Sciences

2296-987X (ISSN)

Vol. 4 1-

Ämneskategorier

Fysik

Astronomi, astrofysik och kosmologi

Infrastruktur

Onsala rymdobservatorium

DOI

10.3389/fspas.2017.00051