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  Partner: UNT College of Arts and Sciences
 Collection: UNT Scholarly Works
Observational Evidence of Quasar Feedback Quenching Star Formation at High Redshift

Observational Evidence of Quasar Feedback Quenching Star Formation at High Redshift

Date: December 16, 2011
Creator: Cano-Díaz, Mariana; Maiolino, Roberto; Marconi, Alessandro; Netzer, Hagai; Shemmer, Ohad & Cresci, Giovanni
Description: This Letter to the Editor discusses an observational proof of quasar feedback quenching the star formation at high redshift.
Contributing Partner: UNT College of Arts and Sciences
High-Redshift SDSS Quasars With Weak Emission Lines

High-Redshift SDSS Quasars With Weak Emission Lines

Date: April 16, 2009
Creator: Diamond-Stanic, Aleksandar M.; Fan, Xiaohui; Brandt, William Nielsen; Shemmer, Ohad; Strauss, Michael A.; Anderson, Scott F. et al.
Description: This article identifies a sample of 74 high-redshift quasars with weak emission lines from the Fifth Data Release of the Sloan Digital Sky Survey and present infrared, optical, and radio observations of a subsample of four objects at z > 4.
Contributing Partner: UNT College of Arts and Sciences
Multiwavelength Observations of Radio-Quiet Quasars with Weak Emission Lines

Multiwavelength Observations of Radio-Quiet Quasars with Weak Emission Lines

Date: July 26, 2010
Creator: Plotkin, Richard M.; Anderson, Scott F.; Brandt, William Nielsen; Diamond-Stanic, Aleksandar M.; Fan, Xiaohui; MacLeod, Chelsea L. et al.
Description: This article presents radio and X-ray observations, as well as optical light curves, for a subset of 26 BL Lac candidates from the Sloan Digital Sky Survey lacking strong radio emission and with z < 2.2.
Contributing Partner: UNT College of Arts and Sciences
A Comprehensive Analysis of Groundwater Quality in the Barnett Shale Region

A Comprehensive Analysis of Groundwater Quality in the Barnett Shale Region

Date: June 16, 2015
Creator: Hildenbrand, Zacariah Louis; Carlton Jr., Doug D.; Fontenot, Brian; Meik, Jesse M.; Walton, Jayme; Taylor, Josh et al.
Description: This article presents an analysis of 550 groundwater samples collected from private and public supply water wells drawing from aquifers overlying the Barnett shale formation of Texas.
Contributing Partner: UNT College of Arts and Sciences
The X-Ray Properties of Typical High-Redshift Radio-Loud Quasars

The X-Ray Properties of Typical High-Redshift Radio-Loud Quasars

Date: June 12, 2011
Creator: Saez, Christian; Brandt, William Nielsen; Shemmer, Ohad; Chomiuk, Laura; Lopez, Laura A.; Marshall, Herman L. et al.
Description: This article reports spectral, imaging, and variability results from four XMM-Newton observations and two Chandra observations of high-redshift radio-loud quasars.
Contributing Partner: UNT College of Arts and Sciences
X-Ray and Multiwavelength Insights into the Nature of Weak Emission-Line Quasars at Low Redshift

X-Ray and Multiwavelength Insights into the Nature of Weak Emission-Line Quasars at Low Redshift

Date: December 9, 2011
Creator: Wu, Jianfeng; Brandt, William Nielsen; Anderson, Scott F.; Diamond-Stanic, Aleksandar M.; Hall, Patrick B.; Plotkin, Richard M. et al.
Description: This article reports on the X-ray and multiwavelength properties of 11 radio-quiet quasars with weak or no emission lines identified by the Sloan Digital Sky Survey with redshift.
Contributing Partner: UNT College of Arts and Sciences
Black Hole Mass and Growth Rate at z ≃4.8: A Short Episode of Fast Growth Followed by Short Duty Cycle Activity

Black Hole Mass and Growth Rate at z ≃4.8: A Short Episode of Fast Growth Followed by Short Duty Cycle Activity

Date: December 10, 2010
Creator: Trakhtenbrot, Benny; Netzer, Hagai; Lira, Paulina & Shemmer, Ohad
Description: This article presents H-band spectroscopy for a flux-limited sample of 40 z≃ 4.8 active galactic nuclei, selected from the Sloan Digital Sky Survey.
Contributing Partner: UNT College of Arts and Sciences
The Chandra Deep Field-South Survey: 4 Ms Source Catalogs

The Chandra Deep Field-South Survey: 4 Ms Source Catalogs

Date: May 24, 2011
Creator: Xue, Yongquan; Luo, Bin; Brandt, William Nielsen; Bauer, Franz E.; Lehmer, Bret; Broos, Patrick et al.
Description: This article presents source catalogs for the 4 Ms Chandra Deep Field-South.
Contributing Partner: UNT College of Arts and Sciences
Performance Comparison of Passive Structures with Multiple Gates and Funnels for Capturing Contaminated Groundwater

Performance Comparison of Passive Structures with Multiple Gates and Funnels for Capturing Contaminated Groundwater

Date: September 2007
Creator: Hudak, Paul F.
Description: This article describes the evaluation of the capability of passive interceptors with multiple gates for directing the flow of contaminated groundwater.
Contributing Partner: UNT College of Arts and Sciences
Geophysical Prospecting for Oil and Gas Well Effluent

Geophysical Prospecting for Oil and Gas Well Effluent

Date: December 1997
Creator: Hudak, Paul F. & Maxey, George
Description: This article describes the evaluation of the utility of an earth resistivity system for detecting drilling effluent at a site in the Trinity Group outcrop zone.
Contributing Partner: UNT College of Arts and Sciences