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The X-ray Spectral Properties and Variability of Luminous High-Redshift Active Galactic Nuclei

Description: This article contains a detailed investigation of moderate- to high-quality X-ray spectra of 10 of the most luminous active galactic nuclei known at z > 4.
Date: May 20, 2005
Creator: Shemmer, Ohad; Brandt, William Nielsen; Vignali, Christian; Schneider, Donald P.; Fan, Xiaohui; Richards, Gordon T. et al.
Partner: UNT College of Arts and Sciences

Variability-Selected Low-Luminosity Active Galactic Nuclei in the 4 Ms Chandra Deep Field-South

Description: This article demonstrates that the observed variability cannot be explained by X-ray Binary populations or ultraluminous X-ray sources, so the variability is most likely caused by accretion onto a supermassive black hole.
Date: January 18, 2012
Creator: Young, Monica; Brandt, William Nielsen; Xue, Yongquan; Alexander, David M.; Bauer, Franz E.; Lehmer, Bret et al.
Partner: UNT College of Arts and Sciences

High-redshift AGN in the Chandra Deep Fields: the obscured fraction and space density of the sub-L∗ population

Description: This article investigates the population of high-redshift (3≤z<6) active galactic nuclei (AGN) selected in the two deepest X-ray surveys, the 7 Ms Chandra Deep Field-South and 2 Ms Chandra Deep Field-North.
Date: September 26, 2017
Creator: Vito, F.; Brandt, William Nielsen; Yang, G.; Gilli, Roberto; Luo, Bin; Vignali, Christian et al.
Partner: UNT College of Arts and Sciences

The 4Ms Chandra Deep Field-South Number Counts Apportioned By Source Class: Pervasive Active Galactic Nuclei and the Ascent of Normal Galaxies

Description: This article presents cumulative and differential number-count measurements for the recently completed 4 Ms Chandra Deep Field-South survey.
Date: April 9, 2012
Creator: Lehmer, Bret; Xue, Yongquan; Brandt, William Nielsen; Alexander, David M.; Bauer, Franz E.; Brusa, Marcella et al.
Partner: UNT College of Arts and Sciences

Long-Term X-Ray Variability of Typical Active Galactic Nuclei in the Distant Universe

Description: This article discusses the long-term (≈15 years, observed frame) X-ray variability analyses of the 68 brightest radio-quiet active galactic nuclei (AGNs) in the 6 Ms Chandra Deep Field-South survey.
Date: November 3, 2016
Creator: Yang, G.; Brandt, William Nielsen; Luo, Bin; Xue, Yongquan; Bauer, Franz E.; Sun, M. et al.
Partner: UNT College of Arts and Sciences

Tracing the accretion history of supermassive black holes through X-ray variability: results from the Chandra Deep Field-South

Description: This article studies the X-ray variability properties of distant active galactic nuclei (AGNs) in the Chandra Deep Field-South region over 17 yr, up to z ~ 4, and compare them with those predicted by models based on local samples.
Date: July 14, 2017
Creator: Paolillo, Maurizio; Papadakis, I.; Brandt, William Nielsen; Luo, Bin; Xue, Yongquan; Tozzi, Paolo et al.
Partner: UNT College of Arts and Sciences

X-Ray Spectral Constraints for z ≈ 2 Massive Galaxies: The Identification of Reflection-Dominated Active Galactic Nuclei

Description: This article uses the 4 Ms Chandra Deep Field-South survey to place direct constraints on the ubiquity of z ≈ 2 heavily obscured active galactic nuclei.
Date: June 6, 2011
Creator: Alexander, David M.; Bauer, Franz E.; Brandt, William Nielsen; Daddi, Emanuele; Hickox, Ryan; Lehmer, Bret et al.
Partner: UNT College of Arts and Sciences

The deepest X-ray view of high-redshift galaxies: constraints on low-rate black hole accretion

Description: This article exploits the 7 Ms Chandra observations in the Chandra Deep Field-South (CDF-S), the deepest X-ray survey to date, coupled with CANDELS/GOODS-S data, to measure the total X-ray emission arising from 2076 galaxies at 3.5 ≤ z ≤ 6.5.
Date: August 5, 2016
Creator: Vito, F.; Gilli, Roberto; Vignali, Christian; Brandt, William Nielsen; Comastri, Andrea; Yang, G. et al.
Partner: UNT College of Arts and Sciences

A new, faint population of X-ray transients

Description: This article reports on the detection of a remarkable new fast high-energy transient found in the Chandra Deep Field-South, robustly associated with a faint host in the CANDELS survey.
Date: February 15, 2017
Creator: Bauer, Franz E.; Treister, Ezequiel; Schawinski, K.; Schulze, S.; Luo, Bin; Alexander, David M. et al.
Partner: UNT College of Arts and Sciences

The Evolution of Normal Galaxy X-Ray Emission Through Cosmic History: Constraints from the 6 Ms Chandra Deep Field-South

Description: This article presents measurements of the evolution of normal-galaxy X-ray emission from z ≈ 0-7 using local galaxies and galaxy samples in the ≈6 Ms Chandra Deep Field-South (CDF-S) survey.
Date: June 24, 2016
Creator: Lehmer, Bret; Basu-Zych, A.; Mineo, S.; Brandt, William Nielsen; Eufrasio, R. T.; Fragos, T. et al.
Partner: UNT College of Arts and Sciences

Black Hole Growth Is Mainly Linked to Host-galaxy Stellar Mass Rather Than Star Formation Rate

Description: This article investigates the dependence of black hole accretion rate (BHAR) on host-galaxy star formation rate (SFR) and stellar mass in the CANDELS/GOODS-South field in the redshift range of 0.5 ⩽ z < 2.0.
Date: June 15, 2017
Creator: Yang, G.; Chen, C. -T. J.; Vito, F.; Brandt, William Nielsen; Alexander, David M.; Luo, Bin et al.
Partner: UNT College of Arts and Sciences

The XMM-SERVS survey: new XMM–Newton point-source catalogue for the XMM-LSS field

Description: This article presents an X-ray point-source catalogue from the XMM-Large Scale Structure (XMMLSS) survey region, one of the XMM-Spitzer Extragalactic Representative Volume Survey (XMM-SERVS) fields.
Date: April 25, 2018
Creator: Chen, C. -T. J.; Brandt, William Nielsen; Luo, Bin; Ranalli, P.; Yang, G.; Alexander, David M. et al.
Partner: UNT College of Arts and Sciences