Resource Type

The Chandra Deep Field-South Survey: 2 Ms Source Catalogs (open access)

The Chandra Deep Field-South Survey: 2 Ms Source Catalogs

This article presents point-source catalogs for the ≈2 Ms exposure of the Chandra Deep Field-South.
Date: April 21, 2008
Creator: Luo, Bin; Bauer, Franz E.; Brandt, William Nielsen; Alexander, David M.; Lehmer, Bret; Schneider, Donald P. et al.
System: The UNT Digital Library
Chandra Observations of the Highest Redshift Quasars from the Sloan Digital Sky Survey (open access)

Chandra Observations of the Highest Redshift Quasars from the Sloan Digital Sky Survey

This article presents Chandra observations of 21 z > 4 quasars, including 11 sources at z > 5.
Date: February 17, 2006
Creator: Shemmer, Ohad; Brandt, William Nielsen; Schneider, Donald P.; Fan, Xiaohui; Strauss, Michael A.; Diamond-Stanic, Aleksandar M. et al.
System: The UNT Digital Library
A Chandra Survey of the X-Ray Properties of Board Absorption Line Radio-Loud Quasars (open access)

A Chandra Survey of the X-Ray Properties of Board Absorption Line Radio-Loud Quasars

This article presents the results of a Chandra study of 21 broad absorption line radio-loud quasars.
Date: July 14, 2009
Creator: Miller, Brendan; Brandt, William Nielsen; Gibson, Robert R.; Garmire, Gordon P. & Shemmer, Ohad
System: The UNT Digital Library
Complex optical-X-ray correlations in the narrow-line Seyfert 1 galaxy NGC 4051 (open access)

Complex optical-X-ray correlations in the narrow-line Seyfert 1 galaxy NGC 4051

This article presents the results of a dense and intensive X-ray and optical monitoring of the narrow-line Seyfert 1 galaxy NGC 4051 carried out in 2000.
Date: May 6, 2003
Creator: Shemmer, Ohad; Uttley, P.; Netzer, Hagai & McHardy, I.M.
System: The UNT Digital Library
First-principles analysis of lattice thermal conductivity in monolayer and bilayer graphene (open access)

First-principles analysis of lattice thermal conductivity in monolayer and bilayer graphene

Article on first-principles analysis of lattice thermal conductivity in monolayer and bilayer graphene.
Date: July 9, 2009
Creator: Kong, Byoung Don; Paul, S.; Buongiorno Nardelli, Marco & Kim, Ki Wook
System: The UNT Digital Library
The X-ray Spectral Properties and Variability of Luminous High-Redshift Active Galactic Nuclei (open access)

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

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.
System: The UNT Digital Library
Spontaneous Brain Activity as a Source of Ideal 1/f Noise (open access)

Spontaneous Brain Activity as a Source of Ideal 1/f Noise

In this article, the authors study the electroencephalogram (EEG) of 30 closed-eye subjects with a technique of analysis recently proposed to detect punctual events signaling rapid transitions between different metastable states.
Date: December 18, 2009
Creator: Allegrini, Paolo; Menicucci, Danilo; Bedini, Remo; Fronzoni, Leone; Gemignani, Angelo; Grigolini, Paolo et al.
System: The UNT Digital Library
The X-Ray Properties of the Most Luminous Quasars From the Sloan Digital Sky Survey (open access)

The X-Ray Properties of the Most Luminous Quasars From the Sloan Digital Sky Survey

This article studies the X-ray properties of a representative sample of 59 of the most optically luminous quasars in the universe spanning a redshift range of z ≈ 1.5-4.5.
Date: May 18, 2007
Creator: Just, Dennis W.; Brandt, William Nielsen; Shemmer, Ohad; Steffen, Aaron; Schneider, Donald P.; Chartas, George et al.
System: The UNT Digital Library
XMM-Newton spectroscopy of the highly polarized and luminous broad absorption line quasar CSO 755 (open access)

XMM-Newton spectroscopy of the highly polarized and luminous broad absorption line quasar CSO 755

This article presents results from the XMM-Newton observations of the highly optically polarized broad absorption line quasar CSO 755.
Date: September 4, 2005
Creator: Shemmer, Ohad; Brandt, William Nielsen; Gallagher, S.C.; Vignali, Christian; Boller, Thomas; Chartas, George et al.
System: The UNT Digital Library
Reverberation Mapping of High-Luminosity Quasars: First Results (open access)

Reverberation Mapping of High-Luminosity Quasars: First Results

This article discusses reverberation mapping of quasars of high luminosity or high redshift.
Date: December 19, 2006
Creator: Kaspi, Shai; Brandt, William Nielsen; Maoz, Dan; Netzer, Hagai; Schneider, Donald P. & Shemmer, Ohad
System: The UNT Digital Library
The Spectral Energy Distribution and Emission-Line Properties of the Narrow-Line Seyfert 1 Galaxy Arakelian 564 (open access)

The Spectral Energy Distribution and Emission-Line Properties of the Narrow-Line Seyfert 1 Galaxy Arakelian 564

This article presents the intrinsic spectral energy distribution of the narrow-line Seyfert 1 galaxy Ark 564, constructed with contemporaneous data obtained during a multiwavelength, multisatellite observing campaign in 2000 and 2001.
Date: November 7, 2003
Creator: Romano, P.; Mathur, S.; Turner, T.J.; Kraemer, S.B.; Crenshaw, D.M.; Peterson, Bradley M. et al.
System: The UNT Digital Library
Star Formation in the Hosts of High-z QSOs: Evidence from Spitzer PAH Detections (open access)

Star Formation in the Hosts of High-z QSOs: Evidence from Spitzer PAH Detections

This article presents Spitzer rest frame mid-infrared spectroscopy of 12z~2 millimeter-bright type 1 QSOs.
Date: May 17, 2008
Creator: Lutz, Dieter; Sturm, Eckhard; Tacconi, Linda; Valiante, Elisabetta; Schweitzer, Mario; Netzer, Hagai et al.
System: The UNT Digital Library
X-Ray Insights Into the Nature of Weak Emission-Line Quasars at High Redshift (open access)

X-Ray Insights Into the Nature of Weak Emission-Line Quasars at High Redshift

This article presents Chandra observations of nine high-redshift quasars discovered by the Sloan Digital Sky Survey with weak or undetectable high-ionization emission lines in their UV spectra.
Date: February 8, 2009
Creator: Shemmer, Ohad; Brandt, William Nielsen; Anderson, Scott F.; Diamond-Stanic, Aleksandar M.; Fan, Xiaohui; Richards, Gordon T. et al.
System: The UNT Digital Library
Memory Beyond Memory in Heart Beating, a Sign of a Healthy Physiological Condition (open access)

Memory Beyond Memory in Heart Beating, a Sign of a Healthy Physiological Condition

In this article, the authors describe two types of memory and illustrate each using artificial and actual heartbeat data sets.
Date: April 11, 2002
Creator: Allegrini, Paolo; Grigolini, Paolo; Hamilton, P.; Palatella, Luigi & Raffaelli, G.
System: The UNT Digital Library
Dynamical Origin of Memory and Renewal (open access)

Dynamical Origin of Memory and Renewal

This article discusses a dynamical origin of memory and renewal.
Date: August 8, 2006
Creator: Cakir, Rasit; Grigolini, Paolo & Krokhin, Arkadii A.
System: The UNT Digital Library
Non-Poisson distribution of the time distances between two consecutive clusters of earthquakes (open access)

Non-Poisson distribution of the time distances between two consecutive clusters of earthquakes

Article discussing non-Poisson distribution of the time distances between two consecutive clusters of earthquakes.
Date: 2004
Creator: Palatella, Luigi; Allegrini, Paolo; Grigolini, Paolo; Latora, Vito; Mega, Mirko S.; Rapisarda, Andrea et al.
System: The UNT Digital Library
Nova Sagittarii 1998 (V4633 Sgr): a permanent superhump system or an asynchronous polar? (open access)

Nova Sagittarii 1998 (V4633 Sgr): a permanent superhump system or an asynchronous polar?

This article reports the results of observations of V4633 Sgr (Nova Sagittarii 1998) during 1998-2000.
Date: August 23, 2001
Creator: Lipkin, Yaacov; Leibowitz, E. M.; Retter, A. & Shemmer, Ohad
System: The UNT Digital Library
Anomalous diffusion associated with nonlinear fractional derivative Fokker-Planck-like equation: Exact time-dependent solutions (open access)

Anomalous diffusion associated with nonlinear fractional derivative Fokker-Planck-like equation: Exact time-dependent solutions

Article discussing research on anomalous diffusion associated with nonlinear fractional derivative Fokker-Planck-like equation.
Date: August 2000
Creator: Bologna, Mauro; Tsallis, Constantino & Grigolini, Paolo
System: The UNT Digital Library
Mega et al. Reply (open access)

Mega et al. Reply

This article is a reply to a comment by A. Helmstetter and D. Sornette about the article 'Power-Law Time Distribution of Large Earthquakes' from 2003.
Date: March 26, 2004
Creator: Mega, Mirko S.; Allegrini, Paolo; Grigolini, Paolo; Latora, Vito; Palatella, Luigi; Rapisarda, Andrea et al.
System: The UNT Digital Library
First principles theory of artificial metal chains on NiAl(110) surface (open access)

First principles theory of artificial metal chains on NiAl(110) surface

Article on the first principles theory of artificial metal chains on NiAl(110) surface.
Date: July 8, 2005
Creator: Calzolari, Arrigo & Buongiorno Nardelli, Marco
System: The UNT Digital Library
Renewal and memory properties in the random growth of surfaces (open access)

Renewal and memory properties in the random growth of surfaces

Article discussing the renewal and memory properties in the random growth of surfaces.
Date: February 4, 2008
Creator: Cakir, Rasit; Grigolini, Paolo & Ignaccolo, Massimiliano
System: The UNT Digital Library
Excitation of atomic coherence using off-resonant strong laser pulses (open access)

Excitation of atomic coherence using off-resonant strong laser pulses

Article on the excitation of atomic coherence using off-resonant strong laser pulses.
Date: June 24, 2009
Creator: Rostovtsev, Yuri V.
System: The UNT Digital Library
High Sensitivity Measurement of Implanted as in the Presence of Ge in Ge(x)Si(1-x)/Si Layered Alloys Using Trace Element Accelerator Mass Spectrometry (open access)

High Sensitivity Measurement of Implanted as in the Presence of Ge in Ge(x)Si(1-x)/Si Layered Alloys Using Trace Element Accelerator Mass Spectrometry

This article discusses high sensitivity measurement of implanted As in the presence of Ge in Ge(x)Si(1-x)/Si layered alloys using trace element accelerator mass spectrometry.
Date: December 11, 2000
Creator: Datar, Sameer A.; Wu, Liying; Guo, Baonian N.; Nigam, Mohit; Necsoiu, Daniela; Zhai, Y. J. et al.
System: The UNT Digital Library
Effects of Cs deposition on the field-emission properties of single-walled carbon-nanotube bundles (open access)

Effects of Cs deposition on the field-emission properties of single-walled carbon-nanotube bundles

This article discusses the effects of Cs deposition on the field-emission properties of single-walled carbon-nanotube bundles.
Date: January 1, 2001
Creator: Wadhawan, Atul; Stallcup, Richard E. & Pérez, José M.
System: The UNT Digital Library