214 citations · 2.1k across the 29 of their papers we have counts for
12 papers · 1 filter
The XMM-SERVS survey: XMM-Newton point-source catalogs for the W-CDF-S and ELAIS-S1 fields
Q. Ni, W. N. Brandt, C. -T. Chen +30
We present the X-ray point-source catalogs in two of the XMM-Spitzer Extragalactic Representative Volume Survey (XMM-SERVS) fields, W-CDF-S (4.6 deg) and ELAIS-S1 (3.2 deg)…
Luminous and obscured quasars and their host galaxies
Agnese Del Moro, David M. Alexander, Franz E. Bauer +4
The most heavily-obscured, luminous quasars might represent a specific phase of the evolution of actively accreting supermassive black holes and their host galaxies, possibly relat…
SPIDERS: Selection of spectroscopic targets using AGN candidates detected in all-sky X-ray surveys
T. Dwelly, M. Salvato, A. Merloni +19
SPIDERS (SPectroscopic IDentification of eROSITA Sources) is an SDSS-IV survey running in parallel to the eBOSS cosmology project. SPIDERS will obtain optical spectroscopy for larg…
AGN with discordant optical and X-ray classification are not a physical family: Diverse origin in two AGN
I. Ordovás-Pascual, S. Mateos, F. J. Carrera +7
Approximately 3-17 percent of Active Galactic Nuclei (AGN) without detected rest-frame UV/optical broad emission lines (type-2 AGN) do not show absorption in X-rays. The physical o…
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…
ALMA and Herschel reveal that X-ray selected AGN and main-sequence galaxies have different star formation rate distributions
J. R. Mullaney, D. M. Alexander, J. Aird +15
Using deep Herschel and ALMA observations, we investigate the star formation rate (SFR) distributions of X-ray selected AGN host galaxies at 0.5<z<1.5 and 1.5<z<4, comparing them t…
Mid-infrared luminous quasars in the GOODS-Herschel fields: a large population of heavily-obscured, Compton-thick quasars at z~2
A. Del Moro, D. M. Alexander, F. E. Bauer +10
We present the infrared (IR) and X-ray properties of a sample of 33 mid-IR luminous quasars (L(6 micron)>6x10 erg/s) at redshift z~1-3, identified through detailed spectr…
A remarkably flat relationship between the average star formation rate and AGN luminosity for distant X-ray AGN
F. Stanley, C. M. Harrison, D. M. Alexander +5
In this study we investigate the relationship between the star formation rate, SFR, and AGN luminosity, L(AGN), for ~2000 X-ray detected AGN. The AGN span over three orders of magn…
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…
Exploring the Active Galactic Nuclei population with extreme X-ray to optical flux ratios (Fx/Fo >50)
R. Della Ceca, F. J. Carrera, A. Caccianiga +8
The cosmic history of the growth of supermassive black holes in galactic centers parallels that of star-formation in the Universe. However, an important fraction of this growth occ…
NuSTAR and XMM-Newton Observations of Luminous, Heavily Obscured, WISE-Selected Quasars at z ~ 2
D. Stern, G. B. Lansbury, R. J. Assef +30
We report on a NuSTAR and XMM-Newton program that has observed a sample of three extremely luminous, heavily obscured WISE-selected AGN at z~2 in a broad X-ray band (0.1 - 79 keV).…
NuSTAR J033202-2746.8: direct constraints on the Compton reflection in a heavily obscured quasar at z~2
A. Del Moro, J. R. Mullaney, D. M. Alexander +25
We report NuSTAR observations of NuSTAR J033202-2746.8, a heavily obscured, radio-loud quasar detected in the Extended Chandra Deep Field-South, the deepest layer of the NuSTAR ext…