The Nature of Compact Objects in Active Galactic Nuclei: Proceedings of the 33rd Herstmonceux Conference, held in Cambridge, July 6-22, 1992

doi:10.1017/CBO9780511564765

The Nature of Compact Objects in Active Galactic Nuclei

Proceedings of the 33rd Herstmonceux Conference, held in Cambridge, July 6-22, 1992

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Edited by Andrew Robinson, University of Cambridge, Roberto Juan Terlevich, Royal Greenwich Observatory, Cambridge

Publisher:: Cambridge University Press
Online publication date:: August 2010
Print publication year:: 1994
Online ISBN:: 9780511564765
DOI:: https://doi.org/10.1017/CBO9780511564765

Subjects:: Physics and Astronomy, Astrophysics

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What evidence is there for and against unified schemes for active galactic nuclei (AGN)? How do the AGN populations evolve over cosmological timescales? And what can the variability of their UV and X-ray emission tell us? These are just some of the exciting issues addressed in this volume of papers collected from the 33rd Herstmonceux conference in Cambridge. AGN are among the most spectacular objects known to astronomy. Yet, despite years of intense and wide-ranging research, the debate continues - what is their fundamental source of power? Rapid progress has been made towards answering this question by a variety of large-scale, multi-wavelength monitoring campaigns and the latest generation of satellite-borne observations. This volume provides a valuable overview and timely update of the exciting and rapidly developing field of AGN research - essential reading for graduate students and researchers.

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Page 3 of 4

Contents

Non-Linearity of Ly α Response in Variable AGNs
pp 231-234
- By Joseph C. Shields, Department of Astronomy, Ohio State University, Columbus, OH 43210, USA, Gary J. Ferland, Department of Astronomy, Ohio State University, Columbus, OH 43210, USA
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Implications of Broad Line Profile Diversity among AGN
pp 235-243
- By A. Robinson, Institute of Astronomy, Madingley Rd, Cambridge, CB3 OHA
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Emission Line Studies of AGN
pp 244-247
- By Brian R. Espey, Department of Physics and Astronomy, University of Pittsburgh, Pittsburgh, PA 15260. USA
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A Search for Velocity Shifts in QSO Broad Lines
pp 248-250
- By Todd A. Small, Palomar Observatory, 105–24, California Institute of Technology, Pasadena, CA, 91125, Wallace L.W. Sargent, Palomar Observatory, 105–24, California Institute of Technology, Pasadena, CA, 91125
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Broad Line Region Structure from Profile Shapes
pp 251-254
- By Keith L. Thompson, University of Texas at Austin and California Institute of Technology
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IV - X-rays and Accretion Disks
pp 255-256
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X-ray Variability in AGN
pp 257-264
- By T. Jane Turner, Laboratory for High Energy Astrophysics, NASA/Goddard Space Flight Center, Greenbelt, MD 20771, U.S.A
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Thermal Reprocessing of X-rays in NGC 5548
pp 265-269
- By J. Clavel, ISO Science Operations, ESTEC/SAI, Postbus 299, 2200-AG Noordwijk, The Netherlands, K. Nandra, Department of Physics & Astronomy, University of Leicester, Leicester LE1 7RH, U.K., K. Pounds, Department of Physics & Astronomy, University of Leicester, Leicester LE1 7RH, U.K., W. Wamsteker, ESA IUE Observatory, P.O. Box 50727, 28780 Madrid, Spain
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New Ginga Observation and Model of NGC 6814 Periodicity
pp 270-273
- By Sachiko Tsuruta, Department of Physics, Montana State University, Bozeman, Montana 59717, USA, Karen Leighly, Laboratory for High Energy Astrophysics, NASA, Goddard Space Flight Center, Greenbelt, Maryland 20771, USA, Ran Sivron, Department of Physics, Montana State University, Bozeman, Montana 59717, USA
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Power Spectrum Fits to EXOSAT Long Looks
pp 274-277
- By I. E. Papadakis, Department of Physics, Queen Mary and Westfield College, University of London, Mile End Road, London E1 4NS, A. Lawrence, Department of Physics, Queen Mary and Westfield College, University of London, Mile End Road, London E1 4NS
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Dramatic X-ray Spectral Variability of Mkn 841
pp 278-279
- By Ian M. George, Laboratory for High Energy Astrophysics, Code 668, NASA/Goddard Space Flight Center, Greenbelt, MD 20771, U.S.A., and Universities Space Research Association, Paul Nandra, Institute of Astronomy, Magingley Road, Cambridge, CB3 0HA, U.K., Andy C. Fabian, Institute of Astronomy, Magingley Road, Cambridge, CB3 0HA, U.K., T. Jane Turner, Laboratory for High Energy Astrophysics, Code 668, NASA/Goddard Space Flight Center, Greenbelt, MD 20771, U.S.A., and Universities Space Research Association, Chris Done, X-ray Astronomy Group, Department of Physics & Astronomy, University of Leicester, Leicester, LEI 7RH, U.K., Chas S.R. Day, Laboratory for High Energy Astrophysics, Code 668, NASA/Goddard Space Flight Center, Greenbelt, MD 20771, U.S.A., and Universities Space Research Association
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Thermal and Non-Thermal Emission from Accretion Disks
pp 280-290
- By A.C. Fabian, Institute of Astronomy, Madingley Road, Cambridge CB3 0HA, R.R. Ross, Institute of Astronomy, Madingley Road, Cambridge CB3 0HA and Physics Department, College of the Holy Cross, Worcester, MA, USA
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Ultra-Soft X-ray Emission in AGN
pp 291-294
- By E. M. Puchnarewicz, Mullard Space Science Laboratory, University College London, Holmbury St. Mary, Dorking, Surrey RH5 6NT, UK, K. O. Mason, Mullard Space Science Laboratory, University College London, Holmbury St. Mary, Dorking, Surrey RH5 6NT, UK
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Highly Ionized Gas in Seyfert Galaxies
pp 295-298
- By K. Nandra, Institute of Astronomy, Madingley Road, Cambridge CB3 0HA
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EUV Observations of Seyfert 1 Galaxies and Quasars
pp 299-301
- By P. M. Gondhalekar, Astrophysics Group, Rutherford Appleton Laboratory, England, B. J. Kellett, Astrophysics Group, Rutherford Appleton Laboratory, England
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0.1–;20 keV Spectra of 3C 273 and E1821+643
pp 302-303
- By Richard D. Saxton, Department of Physics and Astronomy, University of Leicester, Leicester, LEI 7RH, England, Martin J. L. Turner, Anthony Lawson
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Iron Lines from Ionized Discs
pp 304-305
- By G. Matt, Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, England, A.C. Fabian, Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, England, R.R. Ross, Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, England, Physics Department, College of the Holy Cross, Worcester, MA 01610, USA
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Reflection Effects in Realistic Discs
pp 306-307
- By Carlo Burigana, Dipartimento di Astronomia, Vicolo dell'Osservatorio 5, I–35122 Padova, Italy
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X-Ray Polarization Properties in the Two-Phase Model for AGN
pp 308-309
- By Giorgio Matt, Institute of Astronomy, University of Cambridge, Madingley Road, Cambridge CB3 0HA, England, and Istituto Astronomico dell'Università di Roma “La Sapienza”, Via Lancisi 29, I-00161, Roma, Italy, Francesco Haardt, International School for Advanced Studies, S.I.S.S.A., via Beirut 2-4, I-34014 Trieste, Italy
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X-Ray Reprocessing and UV Continuum in NGC 4151
pp 310-311
- By G.C. Perola, Istituto Astronomico, Universita' di Roma, L. Piro, Istituto Astrofisica Spaziale, C.N.R., Frascati
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Dense Clouds Near the Center of Active Galactic Nuclei
pp 312-313
- By Ran Sivron, Department of Physics, Montana State University, Bozeman, Montana 59717, USA, Sachiko Tsuruta, Department of Physics, Montana State University, Bozeman, Montana 59717, USA
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Accretion Discs in AGN Context: Hints Toward Non-Standard Discs?
pp 314-322
- By Suzy Collin-Souffrin, DAEC, Observatoire de Paris, Section de Meudon, 92195, Meudon, France, and Institut d'Astrophysique, 98bis Bld. Arago, 75014, Paris, France
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Accretion Disk Instabilities
pp 323-331
- By John F. Hawley, Department of Astronomy, Virginia Institute for Theoretical Astronomy, University of Virginia, Charlottesville, VA 22903, USA, Steven A. Balbus, Department of Astronomy, Virginia Institute for Theoretical Astronomy, University of Virginia, Charlottesville, VA 22903, USA
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Compton-Heated Winds from Accretion Disks
pp 332-335
- By Christopher F. McKee, Department of Physics, University of California, Berkeley CA 94720, Department of Astronomy, University of California, Berkeley CA 94720, D.T. Woods, Department of Astronomy, University of California, Berkeley CA 94720, Lawrence Livermore National Laboratory, Livermore CA 94550, J.I. Castor, Lawrence Livermore National Laboratory, Livermore CA 94550, R.I. Klein, Department of Astronomy, University of California, Berkeley CA 94720, Lawrence Livermore National Laboratory, Livermore CA 94550, J.B. Bell, Lawrence Livermore National Laboratory, Livermore CA 94550
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Determination of a Transonic Solution in a Stationary Accretion Disc
pp 336-339
- By John Papaloizou, Astronomy Unit, School of Mathematical Sciences, Queen Mary and Westfield College, University of London, Mile End Road, London, E1 4NS, England, Ewa Szuszkiewicz, Astronomy Unit, School of Mathematical Sciences, Queen Mary and Westfield College, University of London, Mile End Road, London, E1 4NS, England
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Black Holes and Accretion Disks
pp 340-344
- By Fredrik H. Wallinder, NORDITA, Blegdamsvej 17, DK-2100 Copenhagen Ø, Denmark
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Testing the “Disc X-ray Reprocessing” in UV-Optical Continuum and Line Emission in NGC 5548
pp 345-347
- By E. Rokaki, IAP, Paris and DAEC, Meudon, France
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Accretion Discs in Realistic Potentials
pp 348-349
- By R.J.R. Williams, Institute of Astronomy, Madingley Road, Cambridge CB3 0HA, Judith J. Perry, Institute of Astronomy, Cambridge
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Test of the Accretion Disc Model and Orientation Indicator
pp 350-353
- By Monique Joly, DAEC, Observatoire de Meudon, 92195 Meudon cedex, France.
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Orientation Effects in QSO Spectra
pp 354-355
- By Paul J. Francis, Steward Observatory, University of Arizona, Tucson, AZ 85721, USA.
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The Nature of Compact Objects in Active Galactic Nuclei

Proceedings of the 33rd Herstmonceux Conference, held in Cambridge, July 6-22, 1992

Book description

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Contents

Non-Linearity of Ly α Response in Variable AGNs
pp 231-234

Implications of Broad Line Profile Diversity among AGN
pp 235-243

Emission Line Studies of AGN
pp 244-247

A Search for Velocity Shifts in QSO Broad Lines
pp 248-250

Broad Line Region Structure from Profile Shapes
pp 251-254

IV - X-rays and Accretion Disks
pp 255-256

X-ray Variability in AGN
pp 257-264

Thermal Reprocessing of X-rays in NGC 5548
pp 265-269

New Ginga Observation and Model of NGC 6814 Periodicity
pp 270-273

Power Spectrum Fits to EXOSAT Long Looks
pp 274-277

Dramatic X-ray Spectral Variability of Mkn 841
pp 278-279

Thermal and Non-Thermal Emission from Accretion Disks
pp 280-290

Ultra-Soft X-ray Emission in AGN
pp 291-294

Highly Ionized Gas in Seyfert Galaxies
pp 295-298

EUV Observations of Seyfert 1 Galaxies and Quasars
pp 299-301

0.1–;20 keV Spectra of 3C 273 and E1821+643
pp 302-303

Iron Lines from Ionized Discs
pp 304-305

Reflection Effects in Realistic Discs
pp 306-307

X-Ray Polarization Properties in the Two-Phase Model for AGN
pp 308-309

X-Ray Reprocessing and UV Continuum in NGC 4151
pp 310-311

Dense Clouds Near the Center of Active Galactic Nuclei
pp 312-313

Accretion Discs in AGN Context: Hints Toward Non-Standard Discs?
pp 314-322

Accretion Disk Instabilities
pp 323-331

Compton-Heated Winds from Accretion Disks
pp 332-335

Determination of a Transonic Solution in a Stationary Accretion Disc
pp 336-339

Black Holes and Accretion Disks
pp 340-344

Testing the “Disc X-ray Reprocessing” in UV-Optical Continuum and Line Emission in NGC 5548
pp 345-347

Accretion Discs in Realistic Potentials
pp 348-349

Test of the Accretion Disc Model and Orientation Indicator
pp 350-353

Orientation Effects in QSO Spectra
pp 354-355

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The Nature of Compact Objects in Active Galactic Nuclei

Proceedings of the 33rd Herstmonceux Conference, held in Cambridge, July 6-22, 1992

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