112 citations · 416 across the 8 of their papers we have counts for
8 papers
The X-ray and Mid-Infrared luminosities in Luminous Type 1 Quasars
Chien-Ting J. Chen, Ryan C. Hickox, Andrew D. Goulding +16
Several recent studies have reported different intrinsic correlations between the AGN mid-IR luminosity () and the rest-frame 2-10 keV luminosity () for luminous qu…
Revisiting the relationship between 6 μm and 2-10 keV continuum luminosities of AGN
S. Mateos, F. J. Carrera, A. Alonso-Herrero +7
We have determined the relation between the AGN luminosities at rest-frame 6 μm associated to the dusty torus emission and at 2-10 keV energies using a complete, X-ray flux limited…
A Connection between Obscuration and Star Formation in Luminous Quasars
Chien-Ting J. Chen, Ryan C. Hickox, Stacey Alberts +15
We present a measurement of the star formation properties of a uniform sample of mid-IR selected, unobscured and obscured quasars (QSO1s and QSO2s) in the Boötes survey region. We…
A wide search for obscured Active Galactic Nuclei using XMM-Newton and WISE
E. Rovilos, I. Georgantopoulos, A. Akylas +8
We use a combination of the XMM-Newton serendipitous X-ray survey with the optical SDSS, and the infrared WISE all-sky survey in order to check the efficiency of the low X-ray to i…
Molecular lines as tracers of Compton-thick AGN ?
I. Georgantopoulos, E. Rovilos, A. Akylas +1
Recently, Papadopoulos et al., 2010 using sub-mm CO molecular line observations of nearby ultra-luminous IRAS galaxies, (U)LIRGs, have found that exceptionally large gas column den…
Optical colours of AGN in the Extended Chandra Deep Field South: Obscured black holes in early type galaxies
E. Rovilos, I. Georgantopoulos
We investigate the optical colours of X-ray sources from the Extended Chandra Deep Field South (ECDFS) using photometry from the COMBO-17 survey, aiming to explore AGN - galaxy fee…
A search for extragalactic H2O maser emission towards IRAS galaxies II - Discovery of an H2O maser in the Seyfert 1 galaxy NGC 4051
Yoshiaki Hagiwara, Philip J Diamond, Makoto Miyoshi +2
Water vapor maser emission in the 6_{16}-5_{23} transition towards the narrow-line Seyfert 1 (NLS1) galaxy NGC 4051 has been discovered during an ongoing single-dish extragalactic…
Continuum and spectral line observations of the OH Megamaser galaxy Arp 220
Emmanouel Rovilos, Philip J. Diamond, Colin J. Lonsdale +2
We present MERLIN observations of the continuum (both 1.6 and 5 GHz) and OH maser emission towards Arp220. the correct spatial configuration of the various componnents of the galax…