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Title: |
AGN Variability from X-Rays to Radio Waves
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Volume: |
360
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Year: |
2007
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View this Volume on ADS
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Editors: |
Gaskell, C. Martin; McHardy, Ian M.; Peterson, Bradley M.; Sergeev, Sergey G.
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Synopsis: |
The emission produced by accretion onto supermassive black holes in AGN dominates the overall emission of the universe over almost all of the electromagnetic spectrum, particularly in the far UV and soft X-ray regions where the power from most AGN peaks. The emission from AGN can vary on timescales as short as a few minutes, implying extremely small emission regions. However, as yet, we know little about the structure of these emission regions, about the mechanisms by which the emission is produced or about the relationship between emission in different wavebands. For example, does varying X-ray emission drive variability in the optical band and, if so, why? The study of variability is therefore crucial to our understanding of the true nature of AGN and hence has become one of the major areas of international research and collaboration. The meeting “AGN Variability from X-rays to Radio Waves“ brought together researchers from around the world to consider the nature, causes, and many implications of AGN variability.
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ISBN: |
978-1-583812-28-0
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eISBN:
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978-1-58381-294-5
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Volume eAccess: |
$88.00
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Article eAccess: |
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Paper Title |
Page |
Authors |
Cover |
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Volume 360 Cover |
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Gaskell, C.M.; McHardy, I.M.; Peterson, B.M.; Sergeev, S.G. |
Front Matter |
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Volume 360 Front Matter |
1 |
Gaskell, C.M.; McHardy, I.M.; Peterson, B.M.; Sergeev, S.G. |
Conference Photo |
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Volume 360 Conference Photograph |
2 |
Gaskell, C.M.; McHardy, I.M.; Peterson, B.M.; Sergeev, S.G. |
Part 1. Optical Variability |
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Optical and UV Variability of AGNs |
3 |
Lyuty, V.M. |
Determination of Lags Between Variations in the B, V , R, and I Bands in Active Galactic Nuclei |
13 |
Sergeev, S.G.; Doroshenko, V.T.; Golubinskiy, Yu.V.; Merkulova, N.I.; Sergeeva, E.A. |
Comparison of Photometric Characteristics from UBVRI Light Curves of the Seyfert Galaxies NGC 1275, NGC 4151, NGC 5548, and NGC 7469 |
17 |
Merkulova, N.I. |
The Timescale of AGN Variations and the Structure of the Accretion Disk |
23 |
Hawkins, M.R.S. |
Long-Term Optical Quasar Variability |
29 |
de Vries, W.H.; Becker, R.H.; White, R.L. |
Redshift Dependence of QSO Spectral Variability |
33 |
Vagnetti, F.; Trevese, D. |
An Optical Variability Study of Quasars Using the MACHO Light Curves |
37 |
Magdis, G.; Papadakis, I.E. |
Optical Variability of the Three Brightest Nearby Quasars |
41 |
Gaskell, C.M.; Benker, A.J.; Campbell, J.S.; George, T.A.; Hedrick, C.H.; Hiller, M.E.; Klimek, E.S.; Leonard, J.P.; Masatoshi, S.; Peterson, B.W.; Peterson, K.C.; Sanders, K.M. |
Optical Continuum and Line Variability of NLS1s |
45 |
Klimek, E.S.; Gaskell, C.M.; Hedrick, C.H. |
Photometric Behavior of the Seyfert Galaxy Mrk 335 in the Optical Region in 1995-2004 |
49 |
Doroshenko, V.T.; Sergeev, S.G.; Merkulova, N.I.; Sergeeva, E.A.; Golubinsky, Yu.V. |
Rapid Variability of Serendipitously Discovered Very Low-Luminosity AGNs and Implications for Accretion Disk Theory |
55 |
Totani, T.; Oda, T.; Sumi, T.; Kosugi, G.; Yasuda, N.; Doi, M. |
Fast Optical Photometry of Galaxies: Observations of Short-Lived Flare Events |
61 |
Zhilyaev, B.E.; Romanyuk, Ya.O.; Verlyuk, I.A.; Svyatogorov, O.A.; Petrov, M.I.; Lovkaya, M.N. |
UBVRI Linear Polarimetry of the Nucleus of the Seyfert Galaxy NGC 4151 at Maximum and Minimum Light |
65 |
Merkulova, N.I.; Shakhovskoy, N.M. |
BVRI CCD Photometry of Comparison Stars in the Fields of 44 Active Galaxies |
69 |
Doroshenko, V.T.; Sergeev, S.G.; Merkulova, N.I.; Sergeeva, E.A.; Golubinsky, Yu.V.; Pronik, V.I. |
Part 2. IR Variability |
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On the Correlation of Near Infrared and Optical Variability in NGC 4151 |
75 |
Oknyanskij, V.L.; Lyuty, V.M.; Taranova, O.G.; Shenavrin, V.I. |
The Inner Size of the Dust Torus in the Seyfert 1 Galaxy NGC 4151 |
79 |
Minezaki, T.; Yoshii, Y.; Aoki, T.; Kobayashi, Y.; Suganuma, M.; Enya, K.; Tomita, H.; Peterson, B.A. |
Part 3. X-Ray Variability |
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The AGN/X-Ray Binary Connection |
85 |
McHardy, I.; Uttley, P.; Taylor, R.; Papadakis, I. |
The Scaling of X-ray Variability with Black Hole Mass in AGNs |
97 |
Papadakis, I.E. |
The Relationship Between Optical and X-ray Variability in Seyfert Galaxies |
101 |
Uttley, P. |
Optical and X-ray Variability of AGNs |
111 |
Gaskell, C.M. |
Multidimensional Analysis of X-ray Variability of AGNs |
119 |
Halevin, A.V. |
The X-ray Variability Properties of PG Quasars: XMM-Newton Results |
123 |
Guainazzi, M.; Jimenez-Bailon, E.; Piconcelli, E. |
Correlated X-ray to UV Variability in MCG—6-30-15 |
127 |
Arevalo, P.; Papadakis, I.; Kuhlbrodt, B.; Brinkmann, W. |
Part 4. Radio Variability |
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RT-22 CrAO Long-Term Monitoring of Extragalactic Radio Sources at 22 and 37 Ghz |
133 |
Volvach, A.E. |
Strong Long-Term Variability of RATAN-600 1–22 GHz Instantaneous Radio Spectra of 200 AGNs in 1997–2003 |
137 |
Kovalev, Yu.A.; Kovalev, Yu.Y. |
Studies of Low- and High-Frequency Variability of Selected Radio Sources |
141 |
Volvach, A.; Ryabov, M. |
Research on Active Galactic Nuclei with the Low-Frequency VLBI |
145 |
Volvach, A.; Pushkarev, A.; Molotov, I.; Tuccari, G.; Hong, X.; Dougherty, S. |
Multi-Frequency Long-Term Radio Variability and the Milliarcsecond Structure of the High-Redshift Quasar OH471 |
149 |
Volvach, A.E.; Kovalev, Yu.Y. |
3C 120 and the Disk-Jet Connection |
153 |
Marscher, A.P.; Jorstad, S.G. |
The HII Region of 3C 345: Radio Variability and Recombination Lines |
157 |
Matveyenko, L.I. |
Part 5. Blazars |
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Very High Energy Gamma Ray Observations of Blazars |
165 |
Neshpor, Yu.I.; Stepanian, A.A.; Fomin, V.P. |
X-ray, Optical, and Radio Monitoring of Gamma-Ray Blazars |
169 |
Jorstad, S.G.; Marscher, A.P.; Aller, M.F.; Balonek, T.J. |
Photometric and Polarimetric Observations of BL Lac Objects in the Optical Region |
173 |
Kikuchi, S. |
The Variations of X-ray/Gamma-Ray Emission from the Blazar H1426+428 |
177 |
Fidelis, V.V. |
3C 66A: Synchrotron Radiation Strength Variation in 2003 |
181 |
Efimov, Y.S.; Primak, N.V. |
S5 0716+714: Analysis of Color Variability for 2001–2004 |
185 |
Hagen-Thorn, V.A.; Larionov, V.M.; Yefimova, N.V. |
Part 6. Emission-Line Variability |
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Emission-Line Variability in Active Galactic Nuclei |
191 |
Peterson, B.M. |
A New Echo-Mapping Campaign at Intermediate Redshift |
201 |
Trevese, D.; Stirpe, G.; Vagnetti, F.; Zitelli, V.; Paris, D. |
Emission Line — Continuum Correlations |
207 |
Sergeev, S.G. |
Accretion Disks and the Broad-Line Regions of Active Galactic Nuclei |
217 |
Eracleous, M. |
Models and Ideas for the Interpretation of the Variability of Double-Peaked Emission Lines |
227 |
Eracleous, M.; Lewis, K.T.; Bogdanovic, T.; Gezari, S.; Halpern, J.P. |
Some Results of Long-Term Spectral Monitoring of NGC 4151, 3C 390.3, and Arp 102B |
231 |
Pronik, V.I.; Sergeev, S.G. |
Evolution of the Broad Hα and Hβ Emission-Line Profiles in NGC 5548 |
239 |
Shapovalova, A.I.; Burenkov, A.N.; Borisov, N.; Vlasyuk, V.V.; Doroshenko, V.T.; Bochkarev, N.G.; Carrasco, L.; Chavushyan, V.H.; Valdes, J.R.; Collin, S.; Dumont, A.-M. |
Flows and Shocks in Seyfert Galaxy Nuclei |
245 |
Pronik, I. |
Asymmetry of the Wide Hα Component in the Spectrum of NGC 4151 from 1976 to 1986, and the Outburst in Activity from 1990 to 2000 |
251 |
Valiullin, R.R.; Denissyuk, E.D.; Gaisina, V.N. |
Analysis of the Broad Emission Line Profiles in the Active Galactic Nuclei 3C 390.3 and NGC 5548 |
255 |
Nazarova, L.S.; Bochkarev, N.G.; Gaskell, C.M.; Klimek, E.S. |
On the Variability of Markarian 6 |
259 |
Khachikian, E.Ye.; Yengibarian, N.B. |
Part 7. General Considerations |
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The Role of the Accretion Disk in AGN Variability |
265 |
Czerny, B. |
X-ray Variability of AGN and the Flare Model |
277 |
Goosmann, R.W.; Czerny, B.; Dumont, A.-M.; Mouchet, M.; Rozanska, A. |
Eigenvector 1: The Future HR Diagram for AGNs? |
281 |
Kajdic, P.; Dultzin-Hacyan, D.; Sulentic, J.W.; Marziani, P. |
Some Thoughts on AGN Variability |
285 |
Bochkarev, N.G. |
Back Matter |
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Volume 360 Back Matter |
291 |
Gaskell, C.M.; McHardy, I.M.; Peterson, B.M.; Sergeev, S.G. |
Photographs |
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Volume 360 Photographs |
999 |
Gaskell, C.M.; McHardy, I.M.; Peterson, B.M.; Sergeev, S.G. |
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