FULL SPECTRAL SURVEY OF ACTIVE GALACTIC NUCLEI IN THE ROSSI X-RAY TIMING EXPLORER ARCHIVE

We have analyzed spectra for all active galactic nuclei (AGNs) in the Rossi X-ray Timing Explorer archive. We present long-term average values of absorption, Fe line equivalent width (EW), Compton reflection, and photon index, and calculate fluxes and luminosities in the 2–10 keV band for 100 AGN with sufficient brightness and overall observation time to yield high-quality spectral results. We compare these parameters across the different classifications of Seyferts and blazars. Our distributions of photon indices for Seyfert 1s and 2s are consistent with the idea that Seyferts share a common central engine; however, our distributions of Compton reflection hump strengths do not support the classical picture of absorption by a torus and reflection off a Compton-thick disk with type depending only on inclination angle. We conclude that a more complex reflecting geometry such as a combined disk and torus or clumpy torus is likely a more accurate picture of the Compton-thick material. We find that Compton reflection is present in ∼85% of Seyferts and by comparing Fe line EW's to Compton reflection hump strengths we have found that on average 40% of the Fe line arises in Compton thick material; however, this ratio was not consistent from object to object and did not seem to be dependent on optical classification.

[1]  J. H. Yang,et al.  THE SPECTRAL INDEX PROPERTIES OF FERMI BLAZARS , 2012 .

[2]  A. Markowitz,et al.  A Suzaku survey of Fe K lines in Seyfert 1 active galactic nuclei , 2012, 1208.1150.

[3]  A. Rosa,et al.  Broadband study of hard X-ray selected absorbed AGN , 2011, 1111.1946.

[4]  Stephane Paltani,et al.  Reflection in Seyfert galaxies and the unified model of AGN , 2011, 1104.3676.

[5]  N. A. Levenson,et al.  TESTING THE UNIFICATION MODEL FOR ACTIVE GALACTIC NUCLEI IN THE INFRARED: ARE THE OBSCURING TORI OF TYPE 1 AND 2 SEYFERTS DIFFERENT? , 2011, 1101.3335.

[6]  A. Markowitz,et al.  SPECTRAL SURVEY OF X-RAY BRIGHT ACTIVE GALACTIC NUCLEI FROM THE ROSSI X-RAY TIMING EXPLORER , 2011, 1101.1545.

[7]  T. Sakamoto,et al.  THE 22 MONTH SWIFT-BAT ALL-SKY HARD X-RAY SURVEY , 2009, 0903.3037.

[8]  I. Papadakis,et al.  The long-term X-ray spectral variability of AGN , 2009, 0911.0265.

[9]  T. Yaqoob,et al.  An X-ray spectral model for Compton-thick toroidal reprocessors , 2009, 0905.3188.

[10]  S. Bianchi,et al.  HOW COMPLEX IS THE OBSCURATION IN ACTIVE GALACTIC NUCLEI? NEW CLUES FROM THE SUZAKU MONITORING OF THE X-RAY ABSORBERS IN NGC 7582 , 2009, 0901.1973.

[11]  A. Markowitz,et al.  A COMPREHENSIVE X-RAY SPECTRAL ANALYSIS OF THE SEYFERT 1.5 NGC 3227 , 2008, 0810.1249.

[12]  G. Matt,et al.  Suzaku Observations of the Circinus Galaxy , 2008, 0809.4656.

[13]  L. Winter,et al.  X-RAY SPECTRAL PROPERTIES OF THE BAT AGN SAMPLE , 2008, 0808.0461.

[14]  R. Sato,et al.  Suzaku Observation of the TeV Blazar 1ES 1218+304: Clues on Particle Acceleration in an Extreme TeV Blazar , 2008, ECSA 2010.

[15]  L. Miller,et al.  Tracing a Disk Wind in NGC 3516 , 2008, 0803.0080.

[16]  M. Dadina.  Seyfert galaxies in the local Universe (z ≤ 0.1) : the average X-ray spectrum as seen by BeppoSAX , 2008, 0801.4338.

[17]  B. McKernan,et al.  A soft X-ray study of type I active galactic nuclei observed with Chandra high-energy transmission grating spectrometer , 2007 .

[18]  B. McKernan,et al.  A soft X-ray study of Type I AGN observed with Chandra HETGS , 2007, 0705.2542.

[19]  S. Bianchi,et al.  XMM-Newton broad-band observations of NGC 7582: N$_{\mathsf{H}}$ variations and fading out of the active nucleus , 2007, astro-ph/0702564.

[20]  A. Markowitz,et al.  The Energy-dependent X-Ray Timing Characteristics of the Narrow-Line Seyfert 1 Mrk 766 , 2006, astro-ph/0611072.

[21]  A. Comastri,et al.  The synthesis of the cosmic X-ray background in the Chandra and XMM-Newton era , 2006, astro-ph/0610939.

[22]  S. Bianchi,et al.  A multiwavelength map of the nuclear region of NGC 7582 , 2006, astro-ph/0610277.

[23]  M. Dadina.  BeppoSAX observations in the 2–100 keV band of the nearby Seyfert galaxies: an atlas of spectra , 2007 .

[24]  C. Crawford,et al.  A very deep Chandra observation of the Perseus cluster: shocks, ripples and conduction , 2005, astro-ph/0510476.

[25]  D. Grupe,et al.  A Variability Study of the Seyfert 2 Galaxy NGC 6300 with XMM-Newton , 2005, astro-ph/0507469.

[26]  W. B. Burton,et al.  The Leiden/Argentine/Bonn (LAB) Survey of Galactic HI - Final data release of the combined LDS and IAR surveys with improved stray-radiation corrections , 2005, astro-ph/0504140.

[27]  A. Fabian,et al.  The XMM-Newton view of Mrk 3 and IXO 30 , 2005, astro-ph/0503623.

[28]  R. V. Meer,et al.  Simultaneous X-ray and UV spectroscopy of the Seyfert galaxy NGC 5548 - II. Physical conditions in the X-ray absorber , 2005, astro-ph/0501122.

[29]  M. Page,et al.  The nature and origin of Seyfert warm absorbers , 2004, astro-ph/0411297.

[30]  P. Giommi,et al.  The Sedentary Survey of Extreme High Energy Peaked BL Lacs. II. The Catalog and Spectral Properties , 2004, astro-ph/0411093.

[31]  M. Page,et al.  Intrinsic absorbers in BL Lac objects: The XMM-Newton view , 2003, astro-ph/0312599.

[32]  R. Maiolino,et al.  Local supermassive black holes, relics of active galactic nuclei and the X-ray background , 2003, astro-ph/0311619.

[33]  B. Dai,et al.  Gamma-ray-bright blazars: The spectral properties in X-rays and gamma-rays , 2003 .

[34]  J. C. Shields,et al.  The Ionized Gas and Nuclear Environment in NGC 3783. IV. Variability and Modeling of the 900 Kilosecond Chandra Spectrum , 2003, astro-ph/0309096.

[35]  K. Mukai,et al.  X-Ray Variability of the Magnetic Cataclysmic Variable V1432 Aquilae and the Seyfert Galaxy NGC 6814 , 2003, astro-ph/0307195.

[36]  M. Sako,et al.  Chandra LETGS and XMM-Newton observations of NGC 4593 , 2003, astro-ph/0306336.

[37]  P. O’Brien,et al.  Evidence of a high-velocity ionized outflow in a second narrow-line quasar PG 0844+349 , 2003, astro-ph/0305571.

[38]  T. D. Matteo,et al.  A Fundamental plane of black hole activity , 2003, astro-ph/0305261.

[39]  S. Komossa,et al.  Discovery of a Binary Active Galactic Nucleus in the Ultraluminous Infrared Galaxy NGC 6240 Using Chandra , 2002, astro-ph/0212099.

[40]  J. Krolik,et al.  The X-Ray Reflectors in the Nucleus of the Seyfert Galaxy NGC 1068 , 2002, astro-ph/0208158.

[41]  R. Maiolino,et al.  NGC 5506 unmasked as a Narrow Line Seyfert 1:. A direct view of the broad line region using near-IR , 2002, astro-ph/0207432.

[42]  P. Lira,et al.  Chandra HRC and HST observations of NGC 6240: resolving the active galactic nucleus and starburst , 2002 .

[43]  Chiharu Tanihata,et al.  RXTE observations of 3C 273 between 1996 and 2000: variability time-scale and jet power , 2002, astro-ph/0207003.

[44]  Leicester,et al.  High-resolution X-ray imaging and spectroscopy of the core of NGC 4945 with XMM-Newton and Chandra , 2002, astro-ph/0204361.

[45]  B. Peterson,et al.  Determining Central Black Hole Masses in Distant Active Galaxies and Quasars. II. Improved Optical and UV Scaling Relationships , 2002, astro-ph/0601303.

[46]  Cfa,et al.  Chandra HRC and HST observations of NGC6240: resolving the AGN and Starburst , 2002, astro-ph/0202308.

[47]  P. MatteoGuainazzi.  The formerly X-ray reflection-dominated Seyfert 2 galaxy NGC 6300 , 2002 .

[48]  M. Guainazzi.  The formerly X-ray reflection-dominated Seyfert 2 galaxy NGC 6300 , 2002 .

[49]  G. Tagliaferri,et al.  Hard X-ray properties of blazars , 2001 .

[50]  M. Sako,et al.  The Chandra High-Energy Transmission Grating Observation of an X-Ray Ionization Cone in Markarian 3 , 2000, astro-ph/0009323.

[51]  R. McCray,et al.  Astrophysical Journal, in press Preprint typeset using L ATEX style emulateapj v. 26/01/00 ON THE ABSORPTION OF X-RAYS IN THE INTERSTELLAR MEDIUM , 2000 .

[52]  B. M. Peterson,et al.  The Origin of the X-Ray and Ultraviolet Emission in NGC 7469 , 2000, astro-ph/0006339.

[53]  Juri Poutanen,et al.  Observations of Seyfert Galaxies by OSSE and Parameters of Their X-Ray/Gamma-Ray Sources , 2000 .

[54]  W. Brandt,et al.  High-Resolution X-Ray Spectroscopy of the Seyfert 2 Galaxy Circinus with Chandra , 2000, astro-ph/0010356.

[55]  G. Matt,et al.  BeppoSAX Observation of NGC 7582: Constraints on the X-Ray Absorber , 1999, astro-ph/9910216.

[56]  K. Makishima,et al.  The ASCA Medium-Sensitivity Survey (The GIS Catalog Project): Source Counts and Evidence for Emerging Population of Hard Sources , 1999, astro-ph/9908128.

[57]  K. Leighly,et al.  An RXTE Observation of NGC 6300: A New Bright Compton-Reflection Dominated Seyfert 2 Galaxy , 1999, astro-ph/9904155.

[58]  Italy.,et al.  A unifying view of the spectral energy distributions of blazars , 1998, astro-ph/9804103.

[59]  D. Gruber,et al.  In-Flight Performance of the High Energy X-Ray Timing Experiment on the Rossi X-Ray Timing Explorer , 1997, astro-ph/9710328.

[60]  C. B. Markwardt,et al.  Calibration of the Rossi X-Ray Timing Explorer Proportional Counter Array , 2005, astro-ph/0511531.

[61]  D. Smith,et al.  The average X-ray/gamma-ray spectrum of radio-quiet Seyfert 1s , 1996, astro-ph/9607016.

[62]  D. A. Verner,et al.  Atomic data for astrophysics. II. New analytic fits for photoionization cross sections of atoms and ions , 1996 .

[63]  A. Zdziarski,et al.  Angle-dependent Compton reflection of X-rays and gamma-rays , 1995 .

[64]  K. Nandra,et al.  GINGA observations of the X-ray spectra of Seyfert galaxies. , 1994 .

[65]  Robert Antonucci,et al.  Unified models for active galactic nuclei and quasars , 1993 .

[66]  Andrew C. Fabian,et al.  X-ray reflection from cold matter in Active Galactic Nuclei and X-ray binaries , 1991 .

[67]  Martin P. Ward,et al.  Seyfert galaxies as X-ray sources , 1978 .