Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Redshift evolution of X-ray spectral index of quasars observed by XMM-NEWTON/SDSS

Journal Article · · Journal of High Energy Astrophysics
Not Available
Sponsoring Organization:
USDOE
OSTI ID:
1972264
Alternate ID(s):
OSTI ID: 1818613
Journal Information:
Journal of High Energy Astrophysics, Journal Name: Journal of High Energy Astrophysics Journal Issue: C Vol. 31; ISSN 2214-4048
Publisher:
ElsevierCopyright Statement
Country of Publication:
Netherlands
Language:
English

References (30)

3C 273 : A Star-Like Object with Large Red-Shift journal March 1963
The close environments of accreting massive black holes are shaped by radiative feedback journal September 2017
A long hard look at MCG-6-30-15 with XMM-Newton journal September 2002
Serendipitous active galactic nuclei in the XMM--Newton fields of Markarian 205 and QSO 0130-403 journal February 2003
The X-ray properties of z ~ 6 luminous quasars journal July 2017
Properties of radio-loud quasars in the Sloan Digital Sky Survey journal October 2019
The European Photon Imaging Camera on XMM-Newton: The pn-CCD camera journal January 2001
Parameter estimation in astronomy through application of the likelihood ratio journal March 1979
The ultraviolet excess of Seyfert 1 galaxies and quasars journal March 1982
Atlas of quasar energy distributions journal November 1994
On the Absorption of X‐Rays in the Interstellar Medium journal October 2000
Exploratory [ITAL]Chandra[/ITAL] Observations of the Three Highest Redshift Quasars Known journal April 2002
Chandra Survey of Radio‐quiet, High‐Redshift Quasars journal May 2003
X-Ray Lighthouses of the High-Redshift Universe. II. Further Snapshot Observations of the Most Luminous z ≳4 Quasars with Chandra journal June 2005
Chandra Observations of the Highest Redshift Quasars from the Sloan Digital Sky Survey journal June 2006
Evolution of the X‐ray Emission of Radio‐quiet Quasars journal March 2007
The X‐Ray Properties of the Most Luminous Quasars from the Sloan Digital Sky Survey journal August 2007
CONFIRMATION OF A CORRELATION BETWEEN THE X-RAY LUMINOSITY AND SPECTRAL SLOPE OF ACTIVE GALACTIC NUCLEI IN THE CHANDRA DEEP FIELDS journal March 2008
X-Ray Spectral Properties of the bat agn Sample journal December 2008
X-Ray Emission from Optically Selected Radio-Intermediate and Radio-Loud Quasars journal December 2010
The X-Ray Variability of a Large, Serendipitous Sample of Spectroscopic Quasars journal January 2012
THE FIFTH DATA RELEASE SLOAN DIGITAL SKY SURVEY/ XMM-NEWTON QUASAR SURVEY journal June 2009
X-ray reflection from cold matter in Active Galactic Nuclei and X-ray binaries journal March 1991
Soft versus hard X-ray emission in active galactic nuclei: partialcovering and warm-plus-cold absorber models journal September 1996
A statistical relation between the X-ray spectral index and Eddington ratio of active galactic nuclei in deep surveys journal June 2013
Nature and evolution of powerful radio galaxies at z ∼ 1 and their link with the quasar luminosity function journal December 2014
Covering factors of the dusty obscurers in radio-loud and radio-quiet quasars journal June 2016
An XMM-Newton survey of broad iron lines in Seyfert galaxies journal November 2007
The long-term X-ray spectral variability of AGN journal November 2009
The Supernova–Gamma-Ray Burst Connection journal September 2006

Similar Records

X-Rays in Cepheids: XMM-Newton Observations of η Aql
Journal Article · Wed Sep 01 00:00:00 EDT 2021 · The Astronomical Journal (Online) · OSTI ID:23159349

THE SLOAN DIGITAL SKY SURVEY/XMM-NEWTON QUASAR SURVEY: CORRELATION BETWEEN X-RAY SPECTRAL SLOPE AND EDDINGTON RATIO
Journal Article · Mon Jul 20 00:00:00 EDT 2009 · Astrophysical Journal (Online) · OSTI ID:21313923

Related Subjects