A statistical relation between the X-ray spectral index and Eddington ratio of active galactic nuclei in deep surveys

@article{Brightman2013ASR,
  title={A statistical relation between the X-ray spectral index and Eddington ratio of active galactic nuclei in deep surveys},
  author={Murray Brightman and John D. Silverman and Vincenzo Mainieri and Yoshihiro Ueda and Malte Schramm and Kenta Matsuoka and Tohru Nagao and Charles L. Steinhardt and Jeyhan S. Kartaltepe and David B. Sanders and Ezequiel Treister and Ohad Shemmer and W. N. Brandt and Marcella Brusa and Andrea Comastri and Luis C. Ho and Giorgio Lanzuisi and Elisabeta Lusso and K. Nandra and Mara Salvato and Gianni Zamorani and Masayuki Akiyama and D M Alexander and Angelo Bongiorno and Peter Capak and Francesca Maria Civano and Agnese Del Moro and Akihiro Doi and Martin Elvis and G. Hasinger and Elise S. Laird and Daniel C. Masters and Marco Mignoli and Kouji Ohta and Kevin Schawinski and Yoshiaki Taniguchi},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2013},
  volume={433},
  pages={2485-2496}
}
We present an investigation into how well the properties of the accretion flow on to a supermassive black hole may be coupled to those of the overlying hot corona. To do so, we specifically measure the characteristic spectral index, Γ, of a power-law energy distribution, over an energy range of 2–10 keV, for X-ray selected, broad-lined radio-quiet active galactic nuclei (AGN) up to z ∼ 2 in Cosmic Evolution Survey (COSMOS) and Extended Chandra Deep Field South (E-CDF-S). We test the previously… Expand
BAT AGN Spectroscopic Survey – XII. The relation between coronal properties of active galactic nuclei and the Eddington ratio
  • C. Ricci, L. Ho, +12 authors K. Oh
  • Physics
  • Monthly Notices of the Royal Astronomical Society
  • 2018
The bulk of the X-ray emission in active galactic nuclei (AGNs) is produced very close to the accreting supermassive black hole (SMBH), in a corona of hot electrons which up scatters optical andExpand
X-ray spectral modelling of the AGN obscuring region in the CDFS: Bayesian model selection and catalogue
Aims. Active galactic nuclei are known to have complex X-ray spectra that depend on both the properties of the accreting super-massive black hole (e.g. mass, accretion rate) and the distribution ofExpand
A Long Hard-X-Ray Look at the Dual Active Galactic Nuclei of M51 with NuSTAR
We present a broadband X-ray spectral analysis of the M51 system, including the dual active galactic nuclei (AGN) and several off-nuclear point sources. Using a deep observation by NuSTAR, newExpand
A Chandra survey of z ≥ 4.5 quasars
X-ray observations provide a unique probe of the accretion disc corona of supermassive black holes (SMBHs). In this paper, we present a uniform Chandra X-ray data analysis of a sample of 152 z ≥Expand
X-ray spectral analyses of AGNs from the 7Ms Chandra Deep Field-South Survey : the distribution, variability, and evolutions of AGN obscuration.
We present a detailed spectral analysis of the brightest active galactic nuclei (AGNs) identified in the 7Ms Chandra Deep Field-South (CDF-S) survey over a time span of 16 years. Using a model of anExpand
X-ray spectral and eclipsing model of the clumpy obscurer in active galactic nuclei
We present a unification model for a clumpy obscurer in active galactic nuclei (AGN) and investigate the properties of the resulting X-ray spectrum. Our model is constructed to reproduce the columnExpand
Hard X-Ray Emission of the Luminous Infrared Galaxy NGC 6240 as Observed by Nustar
We present a broadband (~0.3−70 keV) spectral and temporal analysis of NuSTAR observations of the luminous infrared galaxy NGC 6240 combined with archival Chandra, XMM-Newton, and BeppoSAX data. NGCExpand
Compton thick active galactic nuclei in Chandra surveys
We present the results from an X-ray spectral analysis of active galactic nuclei (AGN) in the Chandra Deep Field-South, AEGIS-XD and Chandra-COSMOS surveys, fo- cussing on the identication andExpand
The Variable Hard X-Ray Emission of NGC 4945 as Observed by NuSTAR
We present a broadband (~0.5-79 keV) spectral and temporal analysis of multiple NuSTAR observations combined with archival Suzaku and Chandra data of NGC 4945, the brightest extragalactic source atExpand
On the contribution of active galactic nuclei to reionization (Research Note)
Theelectron scattering optical depth constraints on reionization suggest that there may be other sources that contributeto theionization of hydrogen aside from observable star forming galaxies. OftenExpand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 61 REFERENCES
X-ray spectral properties of active galactic nuclei in the Chandra deep field south
We present a detailed X-ray spectral analysis of the sources in the 1Ms catalog of the Chandra Deep Field South (CDFS) taking advantage of optical spectroscopy and photometric redshifts for 321Expand
The Hard X-Ray Spectral Slope as an Accretion Rate Indicator in Radio-quiet Active Galactic Nuclei
We present new XMM-Newton observations of two luminous and high accretion rate radio-quiet active galactic nuclei (AGNs) at z ~ 2. Together with archival X-ray and rest-frame optical spectra of threeExpand
An XMM–Newton spectral survey of 12 μm selected galaxies – I. X-ray data
We present an X-ray spectral analysis of 126 galaxies of the 12 μm galaxy sample. By studying this sample at X-ray wavelengths, we aim to determine the intrinsic power, continuum shape andExpand
The XMM-Newton Wide-Field Survey in the COSMOS Field. IV. X-Ray Spectral Properties of Active Galactic Nuclei
We present a detailed spectral analysis of pointlike X-ray sources in the XMM-NewtonCOSMOS field. Our sample of 135 sources only includes those that have more than 100 net counts in the 0.3-10 keVExpand
The Hot Disk Corona and Magnetic Turbulence in Radio-quiet Active Galactic Nuclei: Observational Constraints
We compile a sample consisting of 56 radio-quiet active galactic nuclei so as to investigate the statistical properties of the hot corona in accretion disks from ASCA observations. The black holeExpand
X-ray spectra and time variability of active galactic nuclei
Abstract The X-ray spectra of broad line active galactic nuclei of all types (Seyfert I's, NELG's, Broadline radio galaxies) is well fit by a power law in the .5–100 keV band of mean energy slope α =Expand
Bolometric luminosities and Eddington ratios of X-ray selected active galactic nuclei in the XMM-COSMOS survey
Bolometric luminosities and Eddington ratios of both X-ray selected broad-line (Type-1) and narrow-line (Type-2) active galactic nuclei (AGN) from the XMM–Newton survey in the Cosmic Evolution SurveyExpand
A correlation between the spectral and timing properties of AGN
Context. We present the results from a combined study of the average X-ray spectral and timing properties of 14 nearby AGN. Aims. We investigate whether a "spectral-timing" AGN correlation exists,Expand
Cosmological Evolution of the Hard X-Ray Active Galactic Nucleus Luminosity Function and the Origin of the Hard X-Ray Background
We investigate the cosmological evolution of the hard X-ray luminosity function (HXLF) of active galactic nuclei (AGNs) in the 2-10 keV luminosity range of 1041.5-1046.5 ergs s-1 as a function ofExpand
The evolution of the Compton thick fraction and the nature of obscuration for AGN in the Chandra Deep Field South
(Abridged) We present the results from the X-ray spectral analysis of high-z AGN in the CDFS, making use of the new 4Ms data set and new X-ray spectral models from Brightman & Nandra, which accountExpand
...
1
2
3
4
5
...