NUSTAR and SUZAKU X-ray spectroscopy of NGC 4151: Evidence for reflection from the inner accretion disk
Abstract
We present X-ray timing and spectral analyses of simultaneous 150 ks Nuclear Spectroscopic Telescope Array (NuSTAR) and Suzaku X-ray observations of the Seyfert 1.5 galaxy NGC 4151. We disentangle the continuum emission, absorption, and reflection properties of the active galactic nucleus (AGN) by applying inner accretion disk reflection and absorption-dominated models. With a time-averaged spectral analysis, we find strong evidence for relativistic reflection from the inner accretion disk. We find that relativistic emission arises from a highly ionized inner accretion disk with a steep emissivity profile, which suggests an intense, compact illuminating source. We find a preliminary, near-maximal black hole spin $$a\gt 0.9$$ accounting for statistical and systematic modeling errors. We find a relatively moderate reflection fraction with respect to predictions for the lamp post geometry, in which the illuminating corona is modeled as a point source. Through a time-resolved spectral analysis, we find that modest coronal and inner disk reflection (IDR) flux variation drives the spectral variability during the observations. As a result, we discuss various physical scenarios for the IDR model and we find that a compact corona is consistent with the observed features.
- Authors:
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- Boston Univ., Boston, MA (United States)
- Harvard-Smithsonian Center for Astrophysics, Cambridge, MA (United States)
- Georgia Inst. of Technology, Atlanta, GA (United States)
- Pontificia Univ. Catolica de Chile, Santiago (Chile); Millennium Institute of Astrophysics, Santiago (Chile); Space Science Institute, Boulder, CO (United States)
- Univ. of California, Berkeley, CA (United States)
- Technical Univ. of Denmark, Lyngby (Denmark)
- Dr. Karl Remis-Observatory and Erlangen Centre for Astroparticle Physics, Bamberg (Germany)
- Univ. of Cambridge, Cambridge (United Kingdom)
- California Inst. of Technology (CalTech), Pasadena, CA (United States)
- Columbia Univ., New York, NY (United States)
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Univ. degli Studi Roma Tre, Roma (Italy)
- Univ. of Maryland, College Park, MD (United States)
- Univ. of Michigan, Ann Arbor, MI (United States)
- Publication Date:
- Research Org.:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Org.:
- National Aeronautics and Space Administration (NASA); USDOE Office of Science (SC)
- OSTI Identifier:
- 1313953
- Report Number(s):
- SLAC-PUB-16789
Journal ID: ISSN 1538-4357; arXiv:1504.07950
- Grant/Contract Number:
- AC02-76SF00515
- Resource Type:
- Accepted Manuscript
- Journal Name:
- The Astrophysical Journal (Online)
- Additional Journal Information:
- Journal Name: The Astrophysical Journal (Online); Journal Volume: 806; Journal Issue: 2; Journal ID: ISSN 1538-4357
- Publisher:
- Institute of Physics (IOP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 79 ASTRONOMY AND ASTROPHYSICS; astrophysics; ASTRO; GRQC; accretion; accretion disks; black hole physics; galaxies: active; galaxies: individual (NGC 4151); galaxies: Seyfert; X-rays: galaxies
Citation Formats
Keck, M. L., Brenneman, L. W., Ballantyne, D. R., Bauer, F., Boggs, S. E., Christensen, F. E., Craig, W. W., Dauser, T., Elvis, M., Fabian, A. C., Fuerst, F., García, J., Grefenstette, B. W., Hailey, C. J., Harrison, F. A., Madejski, G., Marinucci, A., Matt, G., Reynolds, C. S., Stern, D., Walton, D. J., and Zoghbi, A. NUSTAR and SUZAKU X-ray spectroscopy of NGC 4151: Evidence for reflection from the inner accretion disk. United States: N. p., 2015.
Web. doi:10.1088/0004-637X/806/2/149.
Keck, M. L., Brenneman, L. W., Ballantyne, D. R., Bauer, F., Boggs, S. E., Christensen, F. E., Craig, W. W., Dauser, T., Elvis, M., Fabian, A. C., Fuerst, F., García, J., Grefenstette, B. W., Hailey, C. J., Harrison, F. A., Madejski, G., Marinucci, A., Matt, G., Reynolds, C. S., Stern, D., Walton, D. J., & Zoghbi, A. NUSTAR and SUZAKU X-ray spectroscopy of NGC 4151: Evidence for reflection from the inner accretion disk. United States. https://doi.org/10.1088/0004-637X/806/2/149
Keck, M. L., Brenneman, L. W., Ballantyne, D. R., Bauer, F., Boggs, S. E., Christensen, F. E., Craig, W. W., Dauser, T., Elvis, M., Fabian, A. C., Fuerst, F., García, J., Grefenstette, B. W., Hailey, C. J., Harrison, F. A., Madejski, G., Marinucci, A., Matt, G., Reynolds, C. S., Stern, D., Walton, D. J., and Zoghbi, A. Mon .
"NUSTAR and SUZAKU X-ray spectroscopy of NGC 4151: Evidence for reflection from the inner accretion disk". United States. https://doi.org/10.1088/0004-637X/806/2/149. https://www.osti.gov/servlets/purl/1313953.
@article{osti_1313953,
title = {NUSTAR and SUZAKU X-ray spectroscopy of NGC 4151: Evidence for reflection from the inner accretion disk},
author = {Keck, M. L. and Brenneman, L. W. and Ballantyne, D. R. and Bauer, F. and Boggs, S. E. and Christensen, F. E. and Craig, W. W. and Dauser, T. and Elvis, M. and Fabian, A. C. and Fuerst, F. and García, J. and Grefenstette, B. W. and Hailey, C. J. and Harrison, F. A. and Madejski, G. and Marinucci, A. and Matt, G. and Reynolds, C. S. and Stern, D. and Walton, D. J. and Zoghbi, A.},
abstractNote = {We present X-ray timing and spectral analyses of simultaneous 150 ks Nuclear Spectroscopic Telescope Array (NuSTAR) and Suzaku X-ray observations of the Seyfert 1.5 galaxy NGC 4151. We disentangle the continuum emission, absorption, and reflection properties of the active galactic nucleus (AGN) by applying inner accretion disk reflection and absorption-dominated models. With a time-averaged spectral analysis, we find strong evidence for relativistic reflection from the inner accretion disk. We find that relativistic emission arises from a highly ionized inner accretion disk with a steep emissivity profile, which suggests an intense, compact illuminating source. We find a preliminary, near-maximal black hole spin $a\gt 0.9$ accounting for statistical and systematic modeling errors. We find a relatively moderate reflection fraction with respect to predictions for the lamp post geometry, in which the illuminating corona is modeled as a point source. Through a time-resolved spectral analysis, we find that modest coronal and inner disk reflection (IDR) flux variation drives the spectral variability during the observations. As a result, we discuss various physical scenarios for the IDR model and we find that a compact corona is consistent with the observed features.},
doi = {10.1088/0004-637X/806/2/149},
journal = {The Astrophysical Journal (Online)},
number = 2,
volume = 806,
place = {United States},
year = {Mon Jun 15 00:00:00 EDT 2015},
month = {Mon Jun 15 00:00:00 EDT 2015}
}
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Works referenced in this record:
Unified Models for Active Galactic Nuclei and Quasars
journal, September 1993
- Antonucci, Robert
- Annual Review of Astronomy and Astrophysics, Vol. 31, Issue 1
A Photoionization Model for the Soft X‐Ray Spectrum of NGC 4151
journal, August 2007
- Armentrout, B. K.; Kraemer, S. B.; Turner, T. J.
- The Astrophysical Journal, Vol. 665, Issue 1
Astropy: A community Python package for astronomy
journal, September 2013
- Robitaille, Thomas P.; Tollerud, Erik J.; Greenfield, Perry
- Astronomy & Astrophysics, Vol. 558
X-ray reflection by photoionized accretion discs
journal, October 2001
- Ballantyne, D. R.; Ross, R. R.; Fabian, A. C.
- Monthly Notices of the Royal Astronomical Society, Vol. 327, Issue 1
The High‐Energy Spectrum of NGC 4151
journal, December 2005
- Beckmann, V.; Shrader, C. R.; Gehrels, N.
- The Astrophysical Journal, Vol. 634, Issue 2
The second INTEGRAL AGN catalogue
journal, August 2009
- Beckmann, V.; Soldi, S.; Ricci, C.
- Astronomy & Astrophysics, Vol. 505, Issue 1
Plasma Ejection from Magnetic Flares and the X-Ray Spectrum of Cygnus X-1
journal, January 1999
- Beloborodov, Andrei M.
- The Astrophysical Journal, Vol. 510, Issue 2
A Reverberation‐based Mass for the Central Black Hole in NGC 4151
journal, November 2006
- Bentz, Misty C.; Denney, Kelly D.; Cackett, Edward M.
- The Astrophysical Journal, Vol. 651, Issue 2
Cosmological Black Hole Spin Evolution by Mergers and Accretion
journal, September 2008
- Berti, Emanuele; Volonteri, Marta
- The Astrophysical Journal, Vol. 684, Issue 2
THE BROAD-BAND X-RAY SPECTRUM OF IC 4329A FROM A JOINT NuSTAR/SUZAKU OBSERVATION
journal, May 2014
- Brenneman, L. W.; Madejski, G.; Fuerst, F.
- The Astrophysical Journal, Vol. 788, Issue 1
A statistical relation between the X-ray spectral index and Eddington ratio of active galactic nuclei in deep surveys
journal, June 2013
- Brightman, M.; Silverman, J. D.; Mainieri, V.
- Monthly Notices of the Royal Astronomical Society, Vol. 433, Issue 3
Modelling the broad Fe Kα reverberation in the AGN NGC 4151
journal, January 2014
- Cackett, E. M.; Zoghbi, A.; Reynolds, C.
- Monthly Notices of the Royal Astronomical Society, Vol. 438, Issue 4
X-Ray Microlensing in Rxj1131-1231 and He1104-1805
journal, February 2009
- Chartas, G.; Kochanek, C. S.; Dai, X.
- The Astrophysical Journal, Vol. 693, Issue 1
Seyfert galaxies in the local Universe ( z ≤ 0.1): the average X-ray spectrum as seen by BeppoSAX
journal, April 2008
- Dadina, M.
- Astronomy & Astrophysics, Vol. 485, Issue 2
Mapping the Kinematics of the Narrow-Line Region in the Seyfert Galaxy NGC 4151
journal, September 2005
- Das, V.; Crenshaw, D. M.; Hutchings, J. B.
- The Astronomical Journal, Vol. 130, Issue 3
The role of the reflection fraction in constraining black hole spin
journal, August 2014
- Dauser, T.; García, J.; Parker, M. L.
- Monthly Notices of the Royal Astronomical Society: Letters, Vol. 444, Issue 1
Irradiation of an accretion disc by a jet: general properties and implications for spin measurements of black holes
journal, February 2013
- Dauser, T.; Garcia, J.; Wilms, J.
- Monthly Notices of the Royal Astronomical Society, Vol. 430, Issue 3
Broad emission lines for a negatively spinning black hole: Broad lines for negatively spinning BHs
journal, September 2010
- Dauser, T.; Wilms, J.; Reynolds, C. S.
- Monthly Notices of the Royal Astronomical Society, Vol. 409, Issue 4
The broad band spectrum and variability of NGC 4151 observed by BeppoSAX
journal, December 2006
- De Rosa, A.; Piro, L.; Perola, G. C.
- Astronomy & Astrophysics, Vol. 463, Issue 3
A Structure for Quasars
journal, December 2000
- Elvis, Martin
- The Astrophysical Journal, Vol. 545, Issue 1
Observational Evidence of Active Galactic Nuclei Feedback
journal, September 2012
- Fabian, A. C.
- Annual Review of Astronomy and Astrophysics, Vol. 50, Issue 1
On the determination of the spin and disc truncation of accreting black holes using X-ray reflection
journal, February 2014
- Fabian, A. C.; Parker, M. L.; Wilkins, D. R.
- Monthly Notices of the Royal Astronomical Society, Vol. 439, Issue 3
X-ray fluorescence from the inner disc in Cygnus X-1
journal, June 1989
- Fabian, A. C.; Rees, M. J.; Stella, L.
- Monthly Notices of the Royal Astronomical Society, Vol. 238, Issue 3
Improved Reflection Models of Black hole Accretion Disks: Treating the Angular Distribution of X-Rays
journal, January 2014
- García, J.; Dauser, T.; Lohfink, A.
- The Astrophysical Journal, Vol. 782, Issue 2
X-Ray Reflected Spectra from Accretion disk Models. iii. a Complete grid of Ionized Reflection Calculations
journal, April 2013
- García, J.; Dauser, T.; Reynolds, C. S.
- The Astrophysical Journal, Vol. 768, Issue 2
X-ray reflection from cold matter in Active Galactic Nuclei and X-ray binaries
journal, March 1991
- George, I. M.; Fabian, A. C.
- Monthly Notices of the Royal Astronomical Society, Vol. 249, Issue 2
Aborted jets and the X–ray emission of radio–quiet AGNs
journal, December 2003
- Ghisellini, G.; Haardt, F.; Matt, G.
- Astronomy & Astrophysics, Vol. 413, Issue 2
Jet and Accretion-Disk Emission Untangled in 3C 273
journal, November 2004
- Grandi, P.
- Science, Vol. 306, Issue 5698
A model for the X-ray and ultraviolet emission from Seyfert galaxies and galactic black holes
journal, September 1994
- Haardt, Francesco; Maraschi, Laura; Ghisellini, Gabriele
- The Astrophysical Journal, Vol. 432
THE NUCLEAR SPECTROSCOPIC TELESCOPE ARRAY ( NuSTAR ) HIGH-ENERGY X-RAY MISSION
journal, May 2013
- Harrison, Fiona A.; Craig, William W.; Christensen, Finn E.
- The Astrophysical Journal, Vol. 770, Issue 2
X-ray spectral constraints on the broad-line cloud geometry of NGC 4151
journal, October 1980
- Holt, S. S.; Mushotzky, R. F.; Boldt, E. A.
- The Astrophysical Journal, Vol. 241
The variability and absorption of the X-ray emission from NGC 4151
journal, July 1976
- Ives, J. C.; Sanford, P. W.; Penston, M. V.
- The Astrophysical Journal, Vol. 207
The Leiden/Argentine/Bonn (LAB) Survey of Galactic HI: Final data release of the combined LDS and IAR surveys with
improved stray-radiation corrections
journal, September 2005
- Kalberla, P. M. W.; Burton, W. B.; Hartmann, Dap
- Astronomy & Astrophysics, Vol. 440, Issue 2
SEVEN-YEAR WILKINSON MICROWAVE ANISOTROPY PROBE ( WMAP ) OBSERVATIONS: COSMOLOGICAL INTERPRETATION
journal, January 2011
- Komatsu, E.; Smith, K. M.; Dunkley, J.
- The Astrophysical Journal Supplement Series, Vol. 192, Issue 2
X-Ray Imaging Spectrometer (XIS) on Board Suzaku
journal, January 2007
- Koyama, Katsuji; Tsunemi, Hiroshi; Dotani, Tadayasu
- Publications of the Astronomical Society of Japan, Vol. 59, Issue sp1
Simultaneous Ultraviolet and X‐Ray Observations of Seyfert Galaxy NGC 4151. I. Physical Conditions in the X‐Ray Absorbers
journal, November 2005
- Kraemer, S. B.; George, I. M.; Crenshaw, D. M.
- The Astrophysical Journal, Vol. 633, Issue 2
Molecular tori in Seyfert galaxies - Feeding the monster and hiding it
journal, June 1988
- Krolik, Julian H.; Begelman, Mitchell C.
- The Astrophysical Journal, Vol. 329
Extreme flux states of NGC 4151 observed with INTEGRAL★: Extreme flux states of NGC 4151
journal, September 2010
- Lubiński, P.; Zdziarski, A. A.; Walter, R.
- Monthly Notices of the Royal Astronomical Society, Vol. 408, Issue 3
Angle-dependent Compton reflection of X-rays and gamma-rays
journal, April 1995
- Magdziarz, Paweł; Zdziarski, Andrzej A.
- Monthly Notices of the Royal Astronomical Society, Vol. 273, Issue 3
OSSE observations of NGC 4151
journal, April 1993
- Maisack, M.; Johnson, W. N.; Kinzer, R. L.
- The Astrophysical Journal, Vol. 407
X-ray spectra of accretion discs with dynamic coronae
journal, September 2001
- Malzac, Julien; Beloborodov, Andrei M.; Poutanen, Juri
- Monthly Notices of the Royal Astronomical Society, Vol. 326, Issue 2
Simultaneous NuSTAR and XMM–Newton 0.5–80舁keV spectroscopy of the narrow-line Seyfert 1 galaxy SWIFT J2127.4+5654
journal, April 2014
- Marinucci, A.; Matt, G.; Kara, E.
- Monthly Notices of the Royal Astronomical Society, Vol. 440, Issue 3
THE BROADBAND SPECTRAL VARIABILITY OF MCG–6-30-15 OBSERVED BY NUSTAR AND XMM-NEWTON
journal, May 2014
- Marinucci, A.; Matt, G.; Miniutti, G.
- The Astrophysical Journal, Vol. 787, Issue 1
Going with the Flow: Can the Base of Jets Subsume the Role of Compact Accretion Disk Coronae?
journal, December 2005
- Markoff, Sera; Nowak, Michael A.; Wilms, Jorn
- The Astrophysical Journal, Vol. 635, Issue 2
On the origin of the broad, relativistic iron line of MCG–6-30-15
observed by XMM-Newton
journal, March 2002
- Martocchia, A.; Matt, G.; Karas, V.
- Astronomy & Astrophysics, Vol. 383, Issue 3
The absorption-dominated model for the X-ray spectra of type I active galaxies: MCG-6-30-15
journal, October 2009
- Miller, L.; Turner, T. J.; Reeves, J. N.
- Monthly Notices of the Royal Astronomical Society: Letters, Vol. 399, Issue 1
A light bending model for the X-ray temporal and spectral properties of accreting black holes
journal, April 2004
- Miniutti, G.; Fabian, A. C.
- Monthly Notices of the Royal Astronomical Society, Vol. 349, Issue 4
The lack of variability of the iron line in MCG-6-30-15: general relativistic effects
journal, September 2003
- Miniutti, G.; Fabian, A. C.; Goyder, R.
- Monthly Notices of the Royal Astronomical Society, Vol. 344, Issue 2
The X-Ray Observatory Suzaku
journal, January 2007
- Mitsuda, Kazuhisa; Bautz, Mark; Inoue, Hajime
- Publications of the Astronomical Society of Japan, Vol. 59, Issue sp1
The Nuclear Regions of the Seyfert Galaxy NGC 4151: Parsec‐Scale H i Absorption and a Remarkable Radio Jet
journal, January 2003
- Mundell, C. G.; Wrobel, J. M.; Pedlar, A.
- The Astrophysical Journal, Vol. 583, Issue 1
An XMM-Newton survey of broad iron lines in Seyfert galaxies
journal, November 2007
- Nandra, K.; O'Neill, P. M.; George, I. M.
- Monthly Notices of the Royal Astronomical Society, Vol. 382, Issue 1
Accretion Disks with Coronae in Cygnus X‐1: The Role of a Transition Layer
journal, October 2001
- Nayakshin, Sergei; Dove, James B.
- The Astrophysical Journal, Vol. 560, Issue 2
A Suzaku survey of Fe K lines in Seyfert 1 active galactic nuclei: Suzaku observations of iron lines
journal, October 2012
- Patrick, A. R.; Reeves, J. N.; Porquet, D.
- Monthly Notices of the Royal Astronomical Society, Vol. 426, Issue 3
A neutral hydrogen study of NGC 4151
journal, November 1992
- Pedlar, A.; Howley, P.; Axon, D. J.
- Monthly Notices of the Royal Astronomical Society, Vol. 259, Issue 2
New results on the X-ray emission and its correlation with the ultraviolet in NGC 4151
journal, July 1986
- Perola, G. C.; Piro, L.; Altamore, A.
- The Astrophysical Journal, Vol. 306
Rapid N H changes in NGC 4151
journal, May 2007
- Puccetti, S.; Fiore, F.; Risaliti, G.
- Monthly Notices of the Royal Astronomical Society, Vol. 377, Issue 2
Resolved Mid‐Infrared Emission in the Narrow‐Line Region of NGC 4151
journal, April 2003
- Radomski, James T.; Pina, Robert K.; Packham, Christopher
- The Astrophysical Journal, Vol. 587, Issue 1
On the size and Location of the X-Ray Emitting Coronae Around Black Holes
journal, May 2013
- Reis, R. C.; Miller, J. M.
- The Astrophysical Journal, Vol. 769, Issue 1
The spin of supermassive black holes
journal, November 2013
- Reynolds, Christopher S.
- Classical and Quantum Gravity, Vol. 30, Issue 24
A Monte Carlo Markov Chain Based Investigation of Black hole spin in the Active Galaxy ngc 3783
journal, July 2012
- Reynolds, Christopher S.; Brenneman, Laura W.; Lohfink, Anne M.
- The Astrophysical Journal, Vol. 755, Issue 2
Broad Iron‐Kα Emission Lines as a Diagnostic of Black Hole Spin
journal, March 2008
- Reynolds, Christopher S.; Fabian, Andrew C.
- The Astrophysical Journal, Vol. 675, Issue 2
A rapidly spinning supermassive black hole at the centre of NGC 1365
journal, February 2013
- Risaliti, G.; Harrison, F. A.; Madsen, K. K.
- Nature, Vol. 494, Issue 7438
The effects of photoionization on X-ray reflection spectra in active galactic nuclei
journal, March 1993
- Ross, R. R.; Fabian, A. C.
- Monthly Notices of the Royal Astronomical Society, Vol. 261, Issue 1
The size of the X-ray emitting region in SWIFT J2127.4+5654 via a broad line region cloud X-ray eclipse
journal, October 2013
- Sanfrutos, M.; Miniutti, G.; Agís-González, B.
- Monthly Notices of the Royal Astronomical Society, Vol. 436, Issue 2
Iron K-features in the hard X-ray XMM-Newton spectrum of NGC 4151
journal, October 2003
- Schurch, N. J.; Warwick, R. S.; Griffiths, R. E.
- Monthly Notices of the Royal Astronomical Society, Vol. 345, Issue 2
Multidimensional modelling of X-ray spectra for AGN accretion disc outflows
journal, August 2008
- Sim, S. A.; Long, K. S.; Miller, L.
- Monthly Notices of the Royal Astronomical Society, Vol. 388, Issue 2
The disk of the Seyfert galaxy NGC 4151.
journal, September 1975
- Simkin, S. M.
- The Astrophysical Journal, Vol. 200
Feeding versus feedback in NGC 4151 probed with Gemini NIFS - I. Excitation
journal, April 2009
- Storchi-Bergmann, T.; McGregor, P. J.; Riffel, Rogemar A.
- Monthly Notices of the Royal Astronomical Society, Vol. 394, Issue 3
Role of emission angular directionality in spin determination of accreting black holes with a broad iron line
journal, September 2009
- Svoboda, J.; Dovčiak, M.; Goosmann, R.
- Astronomy & Astrophysics, Vol. 507, Issue 1
Hard X-Ray Detector (HXD) on Board Suzaku
journal, January 2007
- Takahashi, Tadayuki; Abe, Keiichi; Endo, Manabu
- Publications of the Astronomical Society of Japan, Vol. 59, Issue sp1
EVIDENCE FOR ULTRA-FAST OUTFLOWS IN RADIO-QUIET ACTIVE GALACTIC NUCLEI. II. DETAILED PHOTOIONIZATION MODELING OF Fe K-SHELL ABSORPTION LINES
journal, November 2011
- Tombesi, F.; Cappi, M.; Reeves, J. N.
- The Astrophysical Journal, Vol. 742, Issue 1
The active galaxy NGC 4151: Archetype or exception?
journal, June 2000
- Ulrich, M. -H.
- Astronomy and Astrophysics Review, Vol. 10, Issue 1-2
VLBA Identification of the Milliarcsecond Active Nucleus in the Seyfert Galaxy NGC 4151
journal, September 2005
- Ulvestad, James S.; Wong, Diane S.; Taylor, Gregory B.
- The Astronomical Journal, Vol. 130, Issue 3
Unified Schemes for Radio-Loud Active Galactic Nuclei
journal, June 1995
- Urry, C. Megan; Padovani, Paolo
- Publications of the Astronomical Society of the Pacific, Vol. 107
Atomic Data for Astrophysics. II. New Analytic FITS for Photoionization Cross Sections of Atoms and Ions
journal, July 1996
- Verner, D. A.; Ferland, G. J.; Korista, K. T.
- The Astrophysical Journal, Vol. 465
Suzaku observations of ‘bare’ active galactic nuclei
journal, December 2012
- Walton, D. J.; Nardini, E.; Fabian, A. C.
- Monthly Notices of the Royal Astronomical Society, Vol. 428, Issue 4
NuSTAR AND XMM-NEWTON OBSERVATIONS OF NGC 1365: EXTREME ABSORPTION VARIABILITY AND A CONSTANT INNER ACCRETION DISK
journal, May 2014
- Walton, D. J.; Risaliti, G.; Harrison, F. A.
- The Astrophysical Journal, Vol. 788, Issue 1
A DEEP CHANDRA ACIS STUDY OF NGC 4151. II. THE INNERMOST EMISSION LINE REGION AND STRONG EVIDENCE FOR RADIO JET–NLR CLOUD COLLISION
journal, July 2011
- Wang, Junfeng; Fabbiano, Giuseppina; Elvis, Martin
- The Astrophysical Journal, Vol. 736, Issue 1
A DEEP CHANDRA ACIS STUDY OF NGC 4151. III. THE LINE EMISSION AND SPECTRAL ANALYSIS OF THE IONIZATION CONE
journal, November 2011
- Wang, Junfeng; Fabbiano, Giuseppina; Elvis, Martin
- The Astrophysical Journal, Vol. 742, Issue 1
Determination of the X-ray reflection emissivity profile of 1H 0707-495: The emissivity profile of 1H 0707-495
journal, March 2011
- Wilkins, D. R.; Fabian, A. C.
- Monthly Notices of the Royal Astronomical Society, Vol. 414, Issue 2
On the Absorption of X‐Rays in the Interstellar Medium
journal, October 2000
- Wilms, J.; Allen, A.; McCray, R.
- The Astrophysical Journal, Vol. 542, Issue 2
Radio structures of Seyfert galaxies. IV - Jets in NGC 1068 and NGC 4151
journal, December 1982
- Wilson, A. S.; Ulvestad, J. S.
- The Astrophysical Journal, Vol. 263
Active Galactic Nucleus Black Hole Masses and Bolometric Luminosities
journal, November 2002
- Woo, Jong‐Hak; Urry, C. Megan
- The Astrophysical Journal, Vol. 579, Issue 2
The Iron Kα Line Profile in NGC 4151
journal, November 1995
- Yaqoob,, T.; Edelson,, R.; Weaver,, K. A.
- The Astrophysical Journal, Vol. 453, Issue 2
The X-ray spectral variability of NGC 4151
journal, February 1991
- Yaqoob, T.; Warwick, R. S.
- Monthly Notices of the Royal Astronomical Society, Vol. 248, Issue 4
Further probing of the X-ray source in NGC 4151: new constraints on the nuclear geometry
journal, May 1993
- Yaqoob, T.; Warwick, R. S.; Makino, F.
- Monthly Notices of the Royal Astronomical Society, Vol. 262, Issue 2
Broad-band -ray and X-ray spectra of NGC 4151 and their implications for physical processes and geometry
journal, October 1996
- Zdziarski, A. A.; Johnson, W. N.; Magdziarz, P.
- Monthly Notices of the Royal Astronomical Society, Vol. 283, Issue 1
Relativistic iron K X-ray reverberation in NGC 4151: Iron K reverberation in NGC 4151
journal, March 2012
- Zoghbi, A.; Fabian, A. C.; Reynolds, C. S.
- Monthly Notices of the Royal Astronomical Society, Vol. 422, Issue 1
Works referencing / citing this record:
X-ray/UV/optical variability of NGC 4593 with Swift: reprocessing of X-rays by an extended reprocessor
journal, August 2018
- McHardy, I. M.; Connolly, S. D.; Horne, K.
- Monthly Notices of the Royal Astronomical Society, Vol. 480, Issue 3
The lamppost model: effects of photon trapping, the bottom lamp, and disc truncation
journal, April 2018
- Niedźwiecki, Andrzej; Zdziarski, Andrzej A.
- Monthly Notices of the Royal Astronomical Society, Vol. 477, Issue 3
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journal, May 2019
- Chainakun, P.; Watcharangkool, A.; Young, A. J.
- Monthly Notices of the Royal Astronomical Society, Vol. 487, Issue 1
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journal, April 2016
- Fukazawa, Yasushi; Furui, Shun’ya; Hayashi, Kazuma
- The Astrophysical Journal, Vol. 821, Issue 1
Swift Monitoring of NGC 4151: Evidence for a Second X-Ray/UV Reprocessing
journal, May 2017
- Edelson, R.; Gelbord, J.; Cackett, E.
- The Astrophysical Journal, Vol. 840, Issue 1
X-Ray Structure between the Innermost Disk and Optical Broad-line Region in NGC 4151
journal, September 2018
- Miller, J. M.; Cackett, E.; Zoghbi, A.
- The Astrophysical Journal, Vol. 865, Issue 2
NuStar Hard X-Ray View of Low-luminosity Active Galactic Nuclei: High-energy Cutoff and Truncated Thin Disk
journal, January 2019
- Younes, George; Ptak, Andrew; Ho, Luis C.
- The Astrophysical Journal, Vol. 870, Issue 2
Implications of the Warm Corona and Relativistic Reflection Models for the Soft Excess in Mrk 509
journal, January 2019
- García, Javier A.; Kara, Erin; Walton, Dominic
- The Astrophysical Journal, Vol. 871, Issue 1
On Constraining the Growth History of Massive Black Holes via Their Distribution on the Spin–Mass Plane
journal, March 2019
- Zhang, Xiaoxia; Lu, Youjun
- The Astrophysical Journal, Vol. 873, Issue 2
Spectral Properties of NGC 4151 and the Estimation of Black Hole Mass Using TCAF Solution
journal, May 2019
- Nandi, Prantik; Chakrabarti, Sandip K.; Mondal, Santanu
- The Astrophysical Journal, Vol. 877, Issue 2
Revisiting the Spectral and Timing Properties of NGC 4151
journal, October 2019
- Zoghbi, A.; Miller, J. M.; Cackett, E.
- The Astrophysical Journal, Vol. 884, Issue 1
Fe-K Line Time variability and Ni abundance of Distant Reflector in Seyfert Galaxies
text, January 2016
- Fukazawa, Yasushi; Furui, Shun'ya; Hayashi, Kazuma
- arXiv
Swift monitoring of NGC 4151: Evidence for a Second X-ray/UV Reprocessing
text, January 2017
- Edelson, R.; Gelbord, J.; Cackett, E.
- arXiv
X-ray/UV/optical variability of NGC 4593 with Swift: Reprocessing of X-rays by an extended reprocessor
text, January 2017
- McHardy, I. M.; Connolly, S. D.; Cackett, K. Horne E. M.
- arXiv
The lamppost model: effects of photon trapping, the bottom lamp and disc truncation
text, January 2018
- Niedzwiecki, Andrzej; Zdziarski, Andrzej A.
- arXiv
NuSTAR Hard X-ray View of Low-luminosity Active Galactic Nuclei: High-energy Cutoff and Truncated Thin Disk
text, January 2018
- Younes, George; Ptak, Andrew; Ho, Luis C.
- arXiv