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254 Matching Results
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254
The X-Ray Properties of the Optically Brightest Mini-Bal Quasars from the Sloan Digital Sky Survey
This article compiles a sample of 14 of the optically brightest radio-quiet quasars in the Sloan Digital Sky Survey Data Release 5 quasar catalog that have mini-broad absorption lines present in their spectra.
Date:
September 12, 2010
Creator:
Wu, Jianfeng; Brandt, William Nielsen; Comins, M.L.; Gibson, Robert R.; Shemmer, Ohad; Garmire, Gordon P. et al.
Object Type:
Article
System:
The UNT Digital Library
A Population of X-Ray Weak Quasars: PHL 1811 Analogs at High Redshift
This article reports the results from Chandra and XMM-Newton observations of a sample of 10 type 1 quasars selected to have unusual UV emission-line properties similar to those of PHL 1811.
Date:
April 15, 2011
Creator:
Wu, Jianfeng; Brandt, William Nielsen; Hall, Patrick B.; Gibson, Robert R.; Richards, Gordon T.; Schneider, Donald P. et al.
Object Type:
Article
System:
The UNT Digital Library
The Chandra Deep Field-South Survey: 4 Ms Source Catalogs
This article presents source catalogs for the 4 Ms Chandra Deep Field-South.
Date:
May 24, 2011
Creator:
Xue, Yongquan; Luo, Bin; Brandt, William Nielsen; Bauer, Franz E.; Lehmer, Bret; Broos, Patrick et al.
Object Type:
Article
System:
The UNT Digital Library
Long-Term X-Ray Variability of Typical Active Galactic Nuclei in the Distant Universe
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.
Object Type:
Article
System:
The UNT Digital Library
Black Hole Growth Is Mainly Linked to Host-galaxy Stellar Mass Rather Than Star Formation Rate
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.
Object Type:
Article
System:
The UNT Digital Library
Locating Star-Forming Regions in Quasar Host Galaxies
This article presents a study of the morphology and intensity of star formation in the host galaxies of eight Palomar-Green quasars using observations with the Hubble Space Telescope.
Date:
November 5, 2013
Creator:
Young, Jason E.; Eracleous, Michael; Shemmer, Ohad; Netzer, Hagai; Gronwall, Caryl; Lutz, Dieter et al.
Object Type:
Article
System:
The UNT Digital Library
Variability-Selected Low-Luminosity Active Galactic Nuclei in the 4 Ms Chandra Deep Field-South
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.
Object Type:
Article
System:
The UNT Digital Library
Ion Beam Analysis of Microcrystalline Quartz Artifacts from the Reed Mound Site, Delaware County, Oklahoma
This paper from the 23rd Conference on Application of Accelerators in Research and Industry conference proceedings evaluates the potential of particle induced X-ray emission spectrometry as a tool for future Ozarks chert provenance studies based on its ability to facilitate discrimination of Ozarks chert materials from different geological formations and identification of discrete groups of artifacts from the same geological formation.
Date:
June 18, 2015
Creator:
Younger-Mertz, S. B.; Manuel, J. E.; Reinert, Tilo; Szilasi, S. Z.; Hammerstedt, S. W. & Glass, Gary A.
Object Type:
Article
System:
The UNT Digital Library
Femtosecond wave-packet dynamics in cesium dimers studied through controlled stimulated emission
Article on femtosecond wave-packet dynamics in cesium dimers studied through controlled stimulated emission.
Date:
May 12, 2010
Creator:
Yuan, Luqi; Ariunbold, Gombojav O.; Murawski, Robert K.; Pestov, Dmitry; Wang, Xi; Patnaik, Anil K. et al.
Object Type:
Article
System:
The UNT Digital Library
Tracking molecular wave packets in cesium dimers by coherent Raman scattering
Article discussing tracking molecular wave packets in cesium dimers by coherent Raman scattering.
Date:
August 31, 2012
Creator:
Yuan, Luqi; Murawski, Robert K.; Ariunbold, Gombojav O.; Zhi, Miaochan; Wang, Xi; Sautenkov, Vladimir A. et al.
Object Type:
Article
System:
The UNT Digital Library
Cooperation in neural systems: Bridging complexity and periodicity
Article discussing research on cooperation and neural systems and bridging complexity and periodicity.
Date:
November 29, 2012
Creator:
Zare, Marzieh & Grigolini, Paolo
Object Type:
Article
System:
The UNT Digital Library
Intraocular Pressure Changes: An Important Determinant of the Biocompatibility of Intravitreous Implants
Article discussing intraocular pressure changes and an important determinant of the biocompatibility of intravitreous implants.
Date:
December 14, 2011
Creator:
Zou, Ling; Nair, Ashwin; Weng, Hong; Tsai, Yi-Ting; Hu, Zhibing & Tang, Liping
Object Type:
Article
System:
The UNT Digital Library
Plasmon coupled super- and sub- radiance from dye shells
Article investigates cooperative spontaneous emission, theoretically and experimentally, for an ensemble of emitters coupled to a core-shell structure.
Date:
September 2018
Creator:
de Silva, Vashista C.; Moazzezi, Mojtaba; Rostovtsev, Yuri V. & Drachev, Vladimir P.
Object Type:
Article
System:
The UNT Digital Library
Scattering Suppression in Epsilon-Near-Zero Plasmonic Fractal Shells
This article studies silica-gold core-shell microspheres with plasmonic fractal shells to show that the forward scattering of the silica microspheres is strongly suppressed.
Date:
October 12, 2015
Creator:
de Silva, Vashista C.; Nyga, Piotr & Drachev, Vladimir P.
Object Type:
Article
System:
The UNT Digital Library