20 citations · 52 across the 6 of their papers we have counts for
6 papers
Exploring the X-ray-radio connection for AGN via measurements of the multi-dimensional luminosity function
Clara M. Pennock, James Aird, Cassandra L. Barlow-Hall
We present new methods to quantify the AGN population in terms of a multi-dimensional luminosity function that describes the space density of sources as a function of both X-ray an…
Measurements of the z=4-10 X-ray Luminosity Function: the high space density of moderate-luminosity, obscured AGN
C. L. Barlow-Hall, J. Aird
SMBHs are theorised to undergo significant growth in the early Universe, however, the X-ray Luminosity Function (XLF), used as a principal tracer of the SMBH accretion density, lac…
X-ray AGN in Boötes: The lack of growth of the most massive black holes since z=4
Paloma Guetzoyan, James Aird, Antonis Georgakakis +5
Supermassive Black Holes (BHs) are known to efficiently grow through gas accretion, but even sustained and intense mass build-up through this mechanism struggles to explain the ass…
The Extragalactic Serendipitous Swift Survey (ExSeSS) -- I. Survey definition and measurements of the X-ray number counts
Jack N. Delaney, James Aird, Phil A. Evans +3
We present the Extragalactic Serendipitous Swift Survey (ExSeSS), providing a new well-defined sample constructed from the observations performed using the Swift X-ray Telescope. T…
Constraints on the X-ray Luminosity Function of AGN at z=5.7-6.4 with the Extragalactic Serendipitous Swift Survey
Cassandra L. Barlow-Hall, Jack Delaney, James Aird +3
X-ray luminosity functions (XLFs) of Active Galactic Nuclei (AGN) trace the growth and evolution of supermassive black hole populations across cosmic time, however, current XLF mod…
The X-ray and radio activity of typical and luminous Lya emitters from z~2 to z~6: evidence for a diverse, evolving population
João Calhau, David Sobral, Sérgio Santos +6
Despite recent progress in understanding Lyman-alpha (Lya) emitters (LAEs), relatively little is known regarding their typical black hole activity across cosmic time. Here, we stud…