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Infrared Selection of Obscured Active Galactic Nuclei in the COSMOS Field
Yu-Yen Chang, Emeric Le Floc'h, Stéphanie Juneau +13
We present a study of the connection between black hole accretion, star formation, and galaxy morphology at z<=2.5. We focus on active galactic nuclei (AGNs) selected by their mid-…
AGN Populations in Large Volume X-ray Surveys: Photometric Redshifts and Population Types found in the Stripe 82X Survey
Tonima Tasnim Ananna, Mara Salvato, Stephanie LaMassa +16
Multi-wavelength surveys covering large sky volumes are necessary to obtain an accurate census of rare objects such as high luminosity and/or high redshift active galactic nuclei (…
Near Infrared Variability of obscured and unobscured X-ray selected AGN in the COSMOS field
P. Sánchez, P. Lira, R. Cartier +9
We present our statistical study of near infrared (NIR) variability of X-ray selected Active Galactic Nuclei (AGN) in the COSMOS field, using UltraVISTA data. This is the largest s…
The NuSTAR Extragalactic Survey: Average broad-band X-ray spectral properties of the NuSTAR detected AGN
A. Del Moro, D. M. Alexander, J. A. Aird +18
We present a study of the average X-ray spectral properties of the sources detected by the NuSTAR extragalactic survey, comprising observations of the E-CDFS, EGS and COSMOS fields…
Chandra and NuSTAR follow-up observations of Swift-BAT selected AGN
Stefano Marchesi, Luke Tremblay, Marco Ajello +5
Based on current models of the Cosmic X-ray Background (CXB), heavily obscured Active Galactic Nuclei (AGN) are expected to make up ~10% of the peak emission of the CXB and ~20% of…
An ALMA survey of submillimeter galaxies in the COSMOS field: Multiwavelength counterparts and redshift distribution
Drew Brisbin, Oskari Miettinen, Manuel Aravena +28
We carried out targeted ALMA observations of 129 fields in the COSMOS region at 1.25 mm, detecting 152 galaxies at S/N5 with an average continuum RMS of 150 Jy. These fiel…
The Hunt for Red Quasars: Luminous Obscured Black Hole Growth Unveiled in the Stripe 82 X-ray Survey
Stephanie M. LaMassa, Eilat Glikman, Marcella Brusa +18
We present results of a ground-based near-infrared campaign with Palomar TripleSpec, Keck NIRSPEC, and Gemini GNIRS to target two samples of reddened active galactic nucleus (AGN)…
The NuSTAR Serendipitous Survey: Hunting for The Most Extreme Obscured AGN at >10 keV
G. B. Lansbury, D. M. Alexander, J. Aird +27
We identify sources with extremely hard X-ray spectra (i.e., with photon indices of Gamma<0.6 in the 13 sq. deg. NuSTAR serendipitous survey, to search for the most highly obscured…
Inferring Compton-thick AGN candidates at z>2 with Chandra using the >8 keV restframe spectral curvature
L. Baronchelli, M. Koss, K. Schawinski +10
To fully understand cosmic black hole growth we need to constrain the population of heavily obscured active galactic nuclei (AGN) at the peak of cosmic black hole growth (1-…
The VLA-COSMOS 3~GHz Large Project: Cosmic evolution of radio AGN and implications for radio-mode feedback since z~5
V. Smolcic, M. Novak, I. Delvecchio +8
Based on a sample of over 1,800 radio AGN at redshifts out to z~5, which have typical stellar masses within ~3x(10^{10}-10^{11}) Msol, and 3 GHz radio data in the COSMOS field, we…
Type 2 AGN host galaxies in the Chandra-COSMOS Legacy Survey: No Evidence of AGN-driven Quenching
Hyewon Suh, Francesca Civano, Guenther Hasinger +16
We investigate the star formation properties of a large sample of ~2300 X-ray-selected Type 2 Active Galactic Nuclei (AGNs) host galaxies out to z~3 in the Chandra COSMOS Legacy Su…
The VLA-COSMOS 3 GHz Large Project: Multiwavelength counterparts and the composition of the faint radio population
V. Smolcic, I. Delvecchio, G. Zamorani +18
(abridged) We study the composition of the faint radio population selected from the VLA-COSMOS 3GHz Large Project. The survey covers a 2.6sq.deg. area with a mean rms of ~2.3uJy/b,…
The VLA-COSMOS 3 GHz Large Project: The cosmic star formation history since z~5
M. Novak, V. Smolcic, J. Delhaize +19
We make use of the deep Karl G. Jansky Very Large Array (VLA) COSMOS radio observations at 3 GHz to infer radio luminosity functions of star-forming galaxies up to redshifts of z~5…
The VLA-COSMOS 3~GHz Large Project: AGN and host-galaxy properties out to z6
I. Delvecchio, V. Smolcic, G. Zamorani +29
We explore the multiwavelength properties of AGN host galaxies for different classes of radio-selected AGN out to z6 via a multiwavelength analysis of about 7700 radio so…
VLA-COSMOS 3GHz Large Project: The infrared-radio correlation of star-forming galaxies and AGN to
J. Delhaize, V. Smolcic, I. Delvecchio +22
We examine the behaviour of the infrared-radio correlation (IRRC) over the range using new, highly sensitive 3GHz observations with the Karl G. Jansky Very Large Array (VLA…
An ALMA survey of submillimetre galaxies in the COSMOS field: The extent of the radio-emitting region revealed by 3 GHz imaging with the Very Large Array
Oskari Miettinen, Mladen Novak, Vernesa Smolčić +32
We determine the radio size distribution of a large sample of 152 SMGs in COSMOS that were detected with ALMA at 1.3 mm. For this purpose, we used the observations taken by the VLA…
AGN vs. host galaxy properties in the COSMOS field
G. Lanzuisi, I. Delvecchio, S. Berta +13
The coeval AGN and galaxy evolution and the observed local relations between SMBHs and galaxy properties suggest some connection or feedback between SMBH growth and galaxy build-up…
The Chandra COSMOS legacy survey: Energy Spectrum of the Cosmic X-ray Background and constraints on undetected populations
Nico Cappelluti, Yanxia Li, Angelo Ricarte +15
Using {\em Chandra} observations in the 2.15 deg COSMOS legacy field, we present one of the most accurate measurements of the Cosmic X-ray Background (CXB) spectrum to date i…
X-ray spectral properties of seven heavily obscured Seyfert 2 galaxies
Stefano Marchesi, Marco Ajello, Andrea Comastri +3
We present the combined Chandra and Swift-BAT spectral analysis of seven Seyfert 2 galaxies selected from the Swift-BAT 100-month catalog. We selected nearby (z<=0.03) sources lack…