Productions

The Collected Works of GnT

Everything any of us have ever published ....

... Any links from the title of the paper are to pages containing (if available) the abstract, on-line versions of the text, along with links to related articles.

Index (in press) 2004, 03, 02, 01, 00, 1999, 98, 97, 96, 95, 94, 93, 92, 91, 90, 89 88 87 86

Submitted/Accepted

105: The Properties and the Evbolution of the Highly-ionized Gas in MR 2251-178

On the Relationship between the Optical Emission-line and X-ray Luminosities in Seyfert 1 Galaxies

Kraemer, S., George, I.M. Crenshaw, D.M., Gabel, J.R.,

2003, ApJL, submitted

2004

The XMM-Newton Iron Line Profile of NGC 3783: Reeves, J.N., Nandra, K., George, I.M., Pounds, K.A., Turner, T.J., Yaqoob, T.; 2004, ApJ, 602, 648

The Spectral Energy Distribution and Emission-line Properties of the NLS1 Galaxy Arakelian 564: Romano, P., Mathur, S., Turner, T.J., Kraemer, S., Crenshaw, D.M., Peterson, B.M., Pogge, R.W., Brandt, W.N., George, I.M. Horne, K., Kriss, G.A., Netzer, H. Shemmer, O., Wamstecker, W.; 2004, ApJ, 602, 635

2003

The Ionized Gas and Nuclear Environment in NGC 3783. IV. Variability and Modeling the 900 ks Chandra Spectrum: Netzer, H. Kaspi, S., Behar, E., Brandt, W.N., Chelouche, D., George, I.M. Crenshaw, D.M., Gabel, J.R., Hamann, F.W., Kraemer, S., Kriss, G.A., Nandra, K., Peterson, B.M., Shields, J.C., Turner, T.J.,; 2003, ApJ, 599, 933

A Warm Hot Intergalactic Medium Towards 3C 120 ?: McKernan, B., Yaqoob, T., Mushotzky, R.F., George, I.M., Turner, T.J.,; 2003, ApJ, 598, L83

Fe XXV and Fe XXVI Diagnostics of the Balck Hole and Accretion Disk in Active Galaxies: Chandra Time-resolved Grating Spectroscopy of NGC 7314: Yaqoob, T., George, I.M., Kallman, T.R., Padmanabhan, U., Weaver, K.A., Turner, T.J.; 2003, ApJ, 2003, ApJ, 596, 85

Mass Loss from the Nuclei of Active Galaxies: Crenshaw, D.M., Kraemer, S., George, I.M.,; 2003, ARAA, 41, 117

The Ionized Gas and Nuclear Environment in NGC 3783. III. Detection of a Decreasing Radial Velocity in an Intrinsic UV Absorber: Gabel, J.R., Crenshaw, D.M., Kraemer, S., Brandt, W.N., George, I.M. Hamann, F.W., Kaiser, M.E., Kaspi, S., Kriss, G.A., Mathur, S., Mushotzky, R.F., Nandra, K., Netzer, H. Peterson, B.M., Shields, J.C., Turner, T.J., Zheng, W.,; 2003, ApJ, 595, 120

Elemental Abundances in NGC 3516: Turner, T.J., Kraemer, S., Mushotzky, R.F., George, I.M., Gabel, J.R.; 2003, ApJ, 594, 128

Simultaneous UV and X-ray Spectroscopy of the Seyfert 1 Galaxy NGC 5548. I. Physical Conditions in the UV Absorbers: Crenshaw, D.M., Kraemer, S., Gabel, J.R., Kaastra, J.S., Steenbrugge, K.C., Brinkman, A.C., Dunn, J.P. George, I.M., Liedahl, D.A., Paerels, F.B.S., Turner, T.J., Yaqoob, T.; 2003, ApJ, 594, 116

The Kinematics and Physical Conditions of the Ionized Gas in NGC 4593 from Chandra High-Energy Grating Spectroscopy: McKernan, B., Yaqoob, T., George, I.M., Turner, T.J.,; 2003, ApJ, 593, 142

X-ray Fluctuation Power Spectral Densities of Seyfert 1 Galaxies: Markowitz, A., Edelson, R., Vaughan, S., Uttley, P, George, I.M., Griffiths, R.E., Kaspi, S., Lawrence, A., McHardy, I., Nandra, K., Pounds, K., Reeves, J., Schurch, N., Warwick, R.; 2003, ApJ, 593, 96

The Nature of the UV/X-ray Absorber in PG2302+029: Sabra, B.M., Hamann, F.W., Jannuzi, B.T., George, I.M., Shields, J.C.,; 2003, ApJ, 590, 66

The Ionized Gas and Nuclear Environment in NGC 3783. II. Averaged HST/STIS and FUSE Spectra: Gabel, J.R., Crenshaw, D.M., Kraemer, S., Brandt, W.N., George, I.M. Netzer, H. Hamann, F.W., Kaiser, M.E., Kaspi, S., Koratkar, A., Kriss, G.A., Mathur, S., Mushotzky, R.F., Nandra, K., Peterson, B.M., Shields, J.C., Turner, T.J., Zheng, W.,; 2003, ApJ, 583, 178

SHEEP: The Search for the High Energy Extragalactic Population: Nandra, K., Georgantopoulos, I., Ptak, A., Turner, T.J.,; 2003, ApJ, 582, 615

The Kinematics and Physical Conditions of the Ionized Gas in Markarian 509. II. STIS Echelle Observations: Kraemer, S., Crenshaw, D.M., Yaqoob, T., McKernan, B., Gabel, J.R., George, I.M., Turner, T.J., Dunn, J.P.; 2003, ApJ, 582, 125

The Kinematics and Physical Conditions of the Ionized Gas in Markarian 509. I. Chandra High-Energy Grating Spectroscopy: Yaqoob, T., McKernan, B., Kraemer, S., Crenshaw, D.M., Gabel, J.R., George, I.M., Turner, T.J.; 2003, ApJ, 582, 105

X-Ray versus Optical Variations in the Seyfert 1 Nucleus NGC 3516: A Puzzling Disconnectedness: Maoz, D., Edelson, R., Nandra, K.,; 2002, AJ, 124, 1988

A long, hard look at MCG-6-30-15 with XMM Newton: Fabian, A.C., Vaughan, S., Nandra, K., Iwasawa, K., Ballantyne, D.R., Lee, J.C., De Rosa, A., Turner, A., Young, A.J.,; 2002, MNRAS, 335, L1

Variable UV Absorption in the Seyfert 1 Galaxy NGC 3516: The Case for Associated UV and X-ray Absorption: Kraemer, S., Crenshaw, D.M., George, I.M. Netzer, H. Turner, T.J., Gabel, J.R.,; 2002, ApJ, 577, 98

X-ray emission from Lyman Break Galaxies in the Hubble Deep Field North region: Nandra, K., Mushotzky, R.F., Arnaud, K., Steidel, C.C., Adelberger, K.L., Gardner, J.P., Teplitz, H.I., Windhorst, R.A.,; 2002, ApJ, 576, 625

Narrow Components within the Fe Kalpha Profile of NGC 3516: Evidence for the Importance of General Relativistic Effects?: Turner, T.J., Mushotzky, R.F., Yaqoob, T., George, I.M. Snowden, S.L., Netzer, H. Kraemer, S., Nandra, K., Chelouche, D.,; 2002, ApJ, 574, L123

The Ionized Gas and Nuclear Environment in NGC 3783. I. Time-averaged 900 ks Chandra Grating Spectroscopy: Kaspi, S., Brandt, W.N., George, I.M. Netzer, H. Crenshaw, D.M., Gabel, J.R., Hamann, F.W., Kaiser, M.E., Koratkar, A., Kraemer, S., Kriss, G.A., Mathur, S., Mushotzky, R.F., Nandra, K., Peterson, B.M., Shields, J.C., Turner, T.J., Zheng, W.,; 2002, ApJ, 574, 643

Monitoring RXTE observations of Markarian 348: the origin of the column density variations: Akylas, A., Georgantopoulos, I., Griffiths, R.G., Papadakis, I., Mastichiadis, A., Nandra, K., Warwick, R.S., Smith, D.A.,; 2002, MNRAS, 332, L23

The Detection of Circumnuclear X-ray Emission from the Seyfert Galaxy NGC 3516: George, I.M. Turner, T.J., Netzer, H. Kraemer, S., Ruiz, J., Celouche, D., Crenshaw, D.M., Yaqoob, T., Nandra, K., Mushotzky, R.F.,; 2002, ApJ, 571, 265

The Density and Location of the X-ray Absorbing Gas in NGC 3516: Netzer, H. Celouche, D., George, I.M. Turner, T.J., Crenshaw, D.M., Kraemer, S., Nandra, K.; 2002, ApJ, 571, 256

The Effect of Changes in the ASCA Calibration on the Fe Kalpha Line in Active Galaxies: Yaqoob, T., Padmanabhan, U., Dotani, T., Nandra, K.; 2002, ApJ, 569, 487

X-ray Spectral Variability and Rapid Variability of the Soft X-ray Spectrum Seyfert 1 Galxies Akn 564 and Ton S180: Edelson, R., Turner, T.J., Pounds, K.A., Vaughan, S., Markowitz, A., Marshall, H.L., Dobbie, P., Warwick, R.S.; 2002, ApJ, 568, 610

The Spectral Energy Distrbution of the Seyfert Galaxy Ton S180: Turner, T.J., Romano, P., Kraemer, S., George, I.M. Yaqoob, T., Crenshaw, D.M., Storm, J., Alloin, D., Lazzaro, D., Da Silva, L., Pritchard, J.D., Kriss, G.A., Zheng, W., Mathur, S., Wang, J., Dobbie, P.,; 2002, ApJ, 568, 120

Reddening, Emission-Line and Intrinsic Absorption Properties in the Narrow-Line Seyfert 1 Galaxy Akn 564.: Crenshaw, D.M., Kraemer, S., Turner, T.J., Collier, S., Peterson, B.M., Brandt, W.N., Clavel, J. George, I.M. Horne, K., Kriss, G.A., Mathur, S., Netzer, H. Pogge, R.W., Pounds, K.A., Romano, P., Shemmer, O., Wamsteker, W.; 2002, ApJ, 566, 187

A 12-day ASCA Observation of the Narrow-Line Seyfert 1 Galaxy Ton S180: Time-Selected Spectroscopy.: Romano, P., Turner, T.J., Mathur, S., George, I.M.; 2002, ApJ, 564, 162

2001

Multiwavelength Monitoring of the Narrow-Line Seyfert 1 Galaxy Akn 564. III. Optical Observations and the Optical--UV--X-ray Connection

Multiwavelength Monitoring of the Narrow-Line Seyfert 1 Galaxy Akn 564. II. Ultraviolet Continuum and Emission-line Variability: Collier, S.J., Crenshaw, D.M., Peterson, B.M., Brandt, W.N., Clavel, J., Edelson, R., George, I.M., Horne, K., Kriss, G.A., Mathur, S., Netzer, H., O'Brien, P.T., Pogge, R.W., Pounds, K.A., Romano, P., Shemmer, O., Turner, T.J., Wamsteker, W.,; 2001, ApJ, 561, 146

Multiwavelength Monitoring of the Narrow-Line Seyfert 1 Galaxy Akn 564. I. ASCA Observations and the Variability of the X-ray Spectral Components: Turner, T.J., Romano, P., George, I.M., Edelson, R., Collier, S.J., Mathur, S., Peterson, B.M.,; 2001, ApJ, 561, 131

The X-ray Emission from the Nucleus of the Dwarf Elliptical Galaxy NGC 3226: George, I.M., Mushotzky, R.F., Yaqoob, T., Turner, T.J., Kraemer, S., Ptak, A.F., Nandra, K. Crenshaw, D.M., Netzer, H.; 2001, ApJ, 559, 167

Frequency-dependent time lags in the X-ray emission of the Seyfert galaxy NGC 7469: Papadakis, I.E., Nandra, K., Kazanas, D.,; 2001, ApJL, 554, L133

Temporal characteristics of the X-ray emission of NGC 7469: Nandra, K., Papadakis, I.E.,; 2001, ApJ, 554, 710

High-Resolution X-ray Spectroscopy and Modeling of the Absorbing and Emitting Outflow in NGC 3783: Kaspi, S., Brandt, W.N., Netzer, H., George, I.M., Chartas, G., Behar, E., Sambruna, R.M., Garmire, G.P., Nousek, J.A.,; 2001, ApJ, 554, 216

STIS Echelle Observations of the Seyfert Galaxy NGC 4151: Physical Conditions in the Ultraviolet Absorbers: Kraemer, S., Crenshaw, D.M., Hutchings, J.B., George, I.M., Danks, T.R., Gull, A.C., Kaiser, M.E., Nelson, C.H., Weistrop, D.,; 2001, ApJ, 551, 671

Chandra Grating Spectroscopy of the Seyfert Galaxy Ton S180: Turner, T.J., George, I.M., Yaqoob, T., Kriss, G., Crenshaw, D.M., Kraemer, S., Zheng, W., Wang, J., Nandra, K.; 2001, ApJL, 548, L13

Physical Diagnostics from a Narrow Fe-Kalpha Emission Line Detected by Chandra in the Seyfert 1 Galaxy NGC 5548: Yaqoob, T., George, I.M., Nandra, K., Turner, T.J., Serlemitsos, P.J., Mushotzky, R.F.,; 2001, ApJ, 546,759

The variable XMM-Newton spectrum of Markarian 766: Page, M.J., Mason, K.O., Carrera, F.J., Clavel, J., Kaastra, J.S., Puchnarewicz, E.M., Santos-Lleo, M., Brunner, JH., Ferrigno, C., George, I.M., Paerels, F., Pounds, K.A., Trudolyubov, S.P.,; 2001, A&A , 365, L152

2000

The Origin and UltraViolet Emission in NGC 7469: Nandra, K., Le, T., Edelson, R., George, I.M., Mushotzky, R.F., Peterson, B.M., Turner, T.J.,; 2000, ApJ, 544, 734

On The Reddening in X-ray Absorbed Seyfert 1 Galaxies: Kraemer, S., George, I.M., Turner, T.J., Crenshaw, D., M.; 2000, ApJL, 535, 53

Intensive HST, RXTE and ASCA monitoring of NGC 3516: Evidence against thermal reprocessing: Edelson, R.A., Koratkar, A., Nandra, K., Goad, M., Peterson, B.M., Collier, S., Fruchter, A., Krolik, J., Malkan, M., Maoz, D., O'Brien, P., Shull, J.M., Vaughan, S., Warwick, R.,; 2000, ApJ, 534, 180

BeppoSAX Observation of NGC 7582: Constraints on the X-ray absorber: Turner, T.J., Yaqoob, T. Perola, G.C., Fiore, F., Matt, G., George, I.M., Piro, L., Bassani, L.,; 2000, ApJ, 531, 245

X-ray Observations of Optically-Selected, Radio-Quiet Quasars I: The ASCA results: George, I.M., Turner, T.J., Yaqoob, T. Netzer, H., Laor, A., Mushotzky, R.F., Nandra, K., Takahashi, T.,; 2000, ApJ, 531, 52

A possible 100-day X-ray to optical lag in the variations of the Seyfert 1 nucleus NGC 3516: Maoz, D., Edelson, R.A., Nandra, K.,; 2000, AJ, 119, 119

1999

Akn 564: an unusual component in the X-ray spectra of NLSy1 galaxies

A Highly Doppler Blueshifted Fe-K Emission Line in the High-Redshift QSO PKS 2149-306: Yaqoob, T. George, I.M., Nandra, K., Turner, T.J., Yaqoob, T. Zobair, S., Serlemitsos, P.J.; 1999, ApJ, 525, L9

On X-ray Variability in Seyfert Galaxies: Turner, T.J., George, I.M., Nandra, K., Turcan, D; 1999, ApJ, 524, 667

The Properties of the Relativistic Iron K-line in NGC 3516: Nandra, K., George, I.M., Mushotzky, R.F., Turner, T.J., Yaqoob, T.; 1999, ApJL, 523, L17

Still no Type 2 OSOs: The case of AXJ0341.4-4453: Halpern, J.P., Turner, T.J., George, I.M.,; 1999, MNRAS, 307, L47

ASCA and ROSAT Observations of NGC 5548: Discrepant Spectral Indices: Iwasawa, I., Fabian, A.C., Nandra, K.,; 1999, MNRAS, 307, 611

The ROSAT Wide Field Camera Extragalactic Survey: Edelson, R., Vaughan, S., Warwick, R., Puchnarewicz, E., George, I.M.,; 1999, MNRAS, 307, 91

The Effect of Intrinsic UV Absorption on the Ionizing Continuum and Narrow Emission Line Ratios in Seyfert Galaxies: Kraemer, S.B., Turner, T.J., Crenshaw, D.M., George, I.M.,; 1999, ApJ, 519, 69

A Cutoff in the X-ray Fluctuation Power Density Spectrum of the Seyfert 1 Galxies NGC 3516: Edelson, R.A., Nandra, K.,; 1999, ApJ, 514, 682

X-ray Observations of Mrk 231: Turner, T.J.,; 1999, ApJ, 511, 142

X-ray Observations of the Seyfert galaxy LB 1727 (1H 0419-577): Turner, T.J., George, I.M., Grupe, D., Nandra, K., Remillard, R.A., Leighly, K.M., Marshall, H.L., Kraemer, S.B., Crenshaw, D.M.,; 1999, ApJ, 510, 178

1998

Steps Towards Determination of the Size and Structure of the Broad-Line Region in Active Galactic Nuclei: XIII Ultraviolet Observations of the Broad-Line Radio Galaxy 3C 390.3: O'Brien, P.T. et al; 1998, ApJ, 509, 163

The X-ray Spectral Variability of the Seyfert Galaxy NGC 3227: George, I.M., Mushotzky, R.F., Turner, T.J., Yaqoob, T. Ptak, A., Nandra, K., Netzer, H.,; 1998, ApJ, 509, 146

X-ray Signatures of an Ionized Reprocessor in the Seyfert Galaxy Ton S 180: Turner, T.J., George, I.M., Nandra, K.,; 1998, ApJ, 508, 648

New Constraints on the continuum-emission mechanism of AGN: Intensive monitoring of NGC~7469 in the X-ray and ultraviolet: Nandra, K., Clavel, J., Edelson, R., George, I.M., Malkan, M.A., Mushotzky, R.F., Peterson, B.M., Turner, T.J.,; 1998, ApJ, 505, 549

A Peculiar Emission-Line Feature in the X-ray Spectrum of the Quasar PKS 0637-752: Yaqoob, T., George, I.M., Turner, T.J., Nandra, K., Ptak, A., Serlemitsos, P.J.,; 1998, ApJL, 505, L87

The Soft X-ray Spectrum of Scattering-Dominated AGN: Netzer, H., Turner, T.J., George, I.M.; 1998, ApJ, 504, 680

ASCA Observations of the Ionized Gas in the Seyfert Galaxy NGC 3783: George, I.M. Turner, T.J., Mushotzky, R.F., Nandra, K., Netzer, H.,; 1998, ApJ, 503, 174

ASCA observations of the Broad Line Radio Galaxy 3C 445: Sambruna, R.M., George, I.M., Mushotzky, R.F., Nandra, K., Turner, T.J.,; 1998, ApJ, 495, 749

ASCA Observations of type-2 Seyfert Galaxies: III Orientation and X-ray Absorption: Turner, T.J., George, I.M., Nandra, K., Mushotzky, R.F.,; 1998, ApJ, 493, 91

ASCA Observations of Seyfert-I galaxies: III The Evidence from Absorption & Emission due to Photoionized Gas: George, I.M., Turner, T.J., Netzer, H., Nandra, K., Mushotzky, R.F., Yaqoob, T.; 1998, ApJS, 114, 73

1997

X-ray spectrum of the High Polarization Quasar PKS 1510-089: Singh, K.P., Shrader, C. George, I.M.,; 1997, ApJ, 491, 515

Evidence for absorption due to highly-ionized gas in the radio-quiet quasar PG 1114+445: George, I.M., Nandra, K., Laor, A., Turner, T.J., Fiore, F., Netzer, H., Mushotzky, R.F.,; 1997, ApJ, 491, 508

A Simple New Method For Analysing Gapped Time-series: Search for a High Frequency Cut-off in the X-ray Power Spectrum of MCG-6-30-15: Yaqoob, T. Mc.Kernan, B., Ptak, A., Nandra, K., Serlemitsos, P.J.; 1997, ApJL, 490, 25

Steps Towards Determination of the Size and Structure of the Broad-Line Region in Active Galactic Nuclei: XI Intensive Monitoring of the Ultraviolet Spectrum of NGC 7469: Wanders, I., et al; 1997, ApJS, 113, 69

ASCA Observations of type-2 Seyfert Galaxies: I Data Analysis Results: Turner, T.J., George, I.M., Nandra, K., Mushotzky, R.F.,; 1997, ApJS, 113, 23

Evidence for Realivistic Outflows in Narrow-line Seyfert 1 Galaxies: Leighly, K., Mushotzky, R.F., Nandra, K., Forster, K.,; 1997, ApJL, 489, 25

Soft X-ray lines and gas composition in NGC 1068: Netzer, H., Turner, T.J.,; 1997, ApJ, 488, 694

ASCA Observations of type-2 Seyfert Galaxies: II The Importance of X-ray Scattering and Reflection: Turner, T.J., George, I.M., Nandra, K., Mushotzky, R.F.,; 1997, ApJ, 488, 164

On the dependence of iron K-line profiles with luminosity in active galactic nuclei: Nandra, K., Mushotzky, R.F., George, I.M., Turner, T.J., Yaqoob, T.; 1997, ApJL, 488, 91

Multiwavelength Monitoring of the BL Lacertae Object PKS~2155-304 in May 1994. II. The IUE Campaign: Pian, E., Urry, C.M., Treves, A., Maraschi, L., Penton, S., Shull, J.M., Pesce, J.E., Grandi, P., Kii, T., Kollgaard, R.I., Madejski, G., Marshall, H., Wamsteker, W., Celotti, A., Courvoisier, T.J-L, Falomo, R., Fink, H., George, I.M., Ghisellini, G.,; 1997, ApJ, 486, 784

An X-ray absorption feature in the BL Lacertae object H1426+428: Sambruna, R.M., George, I.M., Madejski, G., Urry, C.M., Turner, T.J., Weaver, K.A., Maraschi, L., Treves, A.,; 1997, ApJ, 483, 774

X-ray Observations of the Broad-Line Radio Galaxy 3C 390.3: Leighly, K.M., O'Brien, P.T., Edelson, R., George, I.M., Malkan, M.A., Matsuoka, M., Mushotzky, R.F., Peterson. B.M.; 1997, ApJ, 483, 767

ASCA observations of Seyfert-1 galaxies: II. Relativistic Iron Kalpha emission: Nandra, K., George, I.M., Mushotzky, R.F., Turner, T.J. , Yaqoob, T.,; 1997, ApJ, 477, 602

Variability of the iron K-emission line in NGC 3516: Nandra, K., Mushotzky, R.F., Yaqoob, T., George, I.M., Turner, T.J. ,; 1997, MNRAS, 284, L7

ASCA observations of Seyfert-1 galaxies: I. Data Analysis, Imaging and Timing: Nandra, K., George, I.M., Mushotzky, R.F., Turner, T.J. , Yaqoob, T.,; 1997, ApJ, 476, 70

Deconvolution of the X-ray Emission and Absorption Components in Centaurus A: Turner, T.J. , George, I.M., Mushotzky, R.F., Nandra, K.,; 1997, ApJ, 475, 118

1996

Reprocessing Models and the ASCA Spectrum of Mkn 290

Turner, T.J. , George, I.M., Kallman, T., Yaqoob, T., Zycki, P.T.

1996, ApJ, 472, 571.

Multiwaveband Observations of Short Time-Scale Variability in NGC 4151. IV. Analysis of Multiwavelength Continuum Variability: Edelson, R. etal.; 1996, ApJ, 470, 364

Discovery of Rapid Variability of the Iron K Line Profile in the Seyfert Galaxy NGC 7314: Yaqoob, T., Serlemitsos, P.J., Turner, T.J. , George, I.M., Nandra, K.,; 1996, ApJL, 470, L27

The variable iron K emission in MCG-6-30-15: Iwasawa, K., Fabian, A.C., Reynolds, C.S., Nandra, K.,, Otani, C., Inoue, H., Hayashida, K., Brandt, W.N., Dotani, T., Kuneida, H., Matsuoka, M., Tanaka, Y.; 1996, MNRAS, 282, 1038

The Average X-ray and Gamma-ray Spectra of Seyfert 1s: Gondek, D., Zdziarski, A.A, Johnson, W.N., George, I.M., McNaron-Brown, K., Gruber, D.E.; 1996, MNRAS, 282, 646

ASCA Observations of the Composite Warm Absorber in NGC 3516: Kriss, G.A., Krolik, J.H., Otani, C., Espey, B.R., Turner, T.J., Kii, T., Tsvetanov, Z., Takahashi, T., Davidsen, A.F., Tashiro, M., Zheng, W., Murakami, S., Petre, R., Mihara, T.; 1996, ApJ, 467, 629

Evidence for a Highly Ionized Iron Emission Line in the QSO PG 1116+215: Nandra, K., George, I.M., Turner, T.J., Fukazawa, Y.; 1996, ApJ, 464, 165

Complex Absorption in the Seyfert-1 Galaxy EXO 055620-3820.2: Turner, T.J., Netzer, H., George, I.M.; 1996, ApJ, 463, 134

The X-ray Spectrum of the BL Lac Object EXO 055625-3838.6: George, I.M., Turner, T.J.; 1996, ApJ, 461, 198

1995

ASCA PV observations of the Seyfert 1 galaxy MCG-6-30-15: rapid variability of the warm absorber

On broad iron K-alpha lines in Seyfert 1 galaxies: Fabian, A.C., Nandra, K., Reynolds, C.S., Brandt, W.N., Otani, C., Tanaka, Y., Inoue, H., Iwasawa, K.,; 1995, MNRAS, 277, 11

Gravitationally redshifted emission implying a black hole and accretion disk in MCG-6-30-15: Tanaka, Y., Nandra, K., Fabian, A.C., Inoue, H., Otani, C., Dotani, T., Hayashida, K., Iwasawa, K., Kii, T., Kunieda, H., Makino, F., Matsuoka, M.,; 1995, Nature, 375, 659

X-ray spectra of two quasars at z>1: Nandra, K., Fabian, A.C., Brandt, W.N., Kunieda H., Matsuoka, M., Mihara, T., Ogasaka, Y., Terashima, Y.,; 1995, MNRAS, 276, 1

ASCA and ROSAT Observations of NRAO~140 and IX Per: Turner, T.J., George, I.M., Madejski, G.M., Kitamoto, S. Suzuki, T.,; 1995, ApJ, 445, 660.

The complex, variable soft X--ray spectrum of NGC 5548: Done, C., Pounds, K.A., Nandra, K., Fabian, A.C.,; 1995, MNRAS, 275, 417

The X-ray Spectrum and variability of the Soft Excess Quasar PG1211+143: Yaqoob, T., P.J.Serlemitsos, R.Mushotzy, G.M.Madejski, Turner, T.J., H. Kunieda; 1995 PASJ, 46, L173

Soft X-ray and ultraviolet observations of Mrk 841: implications for the blue bump: Nandra, K., Turner, T.J. , George, I.M., Fabian, A.C., Shrader, C., Sun, W-.H.; 1995, MNRAS, 273, 85

Detection of Broad Iron K lines in Active Galaxies: Mushotzky, R.F., Fabian, A.C., Iwasawa, K., Matsuoka, M., Nandra, K., Tanaka, Y.,; 1995, MNRAS, 272, L9

Joint ROSAT-Compton GRO Observations of the X-ray Bright Seyfert Galaxy IC4329A: Madejski, G.M., Zdziarski, A.A., Turner, T.J., Done, C., Mushotzky, R.F., Hartman, R.C., Gehrels, N., Connors, T., Fabian, A.C., Nandra, K., Celotti, A., Rees, M.J., Johnson, W.N., Grove, J.E., Starr, C.H.,; 1995, ApJ, 438, 672

A snapshot of the continuous emission of the active galactic nucleus in NGC3783 from gamma-ray to radio wavelengths: Alloin, D., Santos-Lleo, M., Peterson, B.M., Wamsteker, W., Aitieri, B., Brinkmann, W., Clavel, J., Crenshaw, D.M., Evans, I.N., George, I.M., Glass, I.S., Johnson, W.N., Kriss, G.A., Malkan, M.A., Netzer, H., Polidan, R.S., Riechert, G.A., Rodriguez-Pascual, P.M., Romanishin, W., Starr, C.H., Stripe, G.M., Taylor, M., Turner, T.J. , Vega, H., Winge, C., Wood, D.O.S.; 1995, A&A, 293, 293.

The Discovery of an O VII Emission Line in the ASCA Spectrum of the Seyfert Galaxy NGC 3783: George, I.M., Turner, T.J., Netzer, H.,; 1995, ApJL, 438, L67.; (Online: PS)

Multi-wavelength Monitoring of the BL Lac Object PKS2155-304. IV. Multi-Wavelength Analysis: Edelson, R., Krolik, J., Madejski, G. Maraschi, L., Pike, G., Urry, C.M., Brinkmann, W., Courvoisier, T.J.L., Ellithorpe, J., Horne, K., Aller, H.D., Aller, M.F., Ashley, M., Begelman, M., Blecha, A., Bouchet, P., Bratschi, P., Bregman, J.N., Carini, M., Celotti, A., Donahue, M., Fiegelson, E., Filippenko, A.V., Fink, H., George, I.M., Glass, I., Heidt, J., Hewitt, J., Hughes, P., Kollgaard, R., Kondo, Y., Koratkar, A., Leighly, K., Marscher, A., Matheson, T., Martin, P.G., Miller, H.R., Noble, J.C., O'Brian, P., Pian, E., Reichert, G., Saken, J.M., Shull, J.M., Sitko, M., Smith, P., Sun W.-H., Tagliaferri, G., Treves, A., Wagner, S., Wamsteker, W. & Warwick, R.S.; 1995, ApJ, 438, 120.

1994

The X-ray Spectrum of the Highly-Polarized Quasar PKS 1502+106: George, I.M., Nandra, K., Turner, T.J. , Celotti, A.; 1994, ApJL, 436, L59; (Online: PS)

Fe K emission from the hidden quasar IRAS 09104+4109: Fabian, A.C., Shioya, Y., Iwasawa, K., Nandra, K., Crawford, C., Johnstone, R.M., Kunieda, H., McMahon, R., Makishima, K., Murayama, T., Ohashi, T., Tanaka, Y., Taniguchi, Y., Terashima, Y.,; 1994, ApJ, 436, L51

X-ray Color Analysis of the Spectra of Active Galactic Nuclei: Netzer, H., Turner, T.J., George, I.M.,; 1994, ApJ, 435, 106.; (Online: PS)

ROSAT PSPC observations of the Seyfert 1 galaxies Ark 564, NGC 985, Kaz 163, Mrk 79 and RX J2256.6+0524: Brandt, W.N., Fabian, A.C., Nandra, K., Reynolds, C.S., Brinkmann, W.,; 1994, MNRAS, 271, 958

The UK Deep and Medium Surveys with ROSAT: Log N - Log S: Branduardi-Raymont, G., Mason, K.O., Warwick, R.S., Carrera, F.J., Mittaz, P.D., Puchnarewicz, E.M., Smith, P.J., Barber, C.R., Pounds, K.A., Stewart, G.C., McHardy, I.M., Jones, L.R., Merrifield, M.R., Fabian, A.C., McMahon, R. Ward, M.J., George, I.M., Jones, M.H., Lawrence, A., Rowan-Robinson, M.; 1994, MNRAS, 270, 947.

Physical processes in the X--ray/Gamma--ray source of IC4329A: Zdziarski, A.A., Fabian, A.C., Nandra, K., Celotti, A., Rees, M.J., Done, C., Coppi, P., Madejski, G.M.,; 1994, MNRAS, 269, 55P

Ginga observations of the X--ray spectra of Seyfert galaxies: Nandra, K., Pounds, K.A.,; 1994, MNRAS, 268, 405

X-ray reprocessing by cold clouds in active galactic nuclei.: Nandra. K., George, I.M.,; 1994, MNRAS, 267, 974.

Constraining the complexities in Seyfert X--ray spectra -- an analysis of simultaneous observations with Ginga and ROSAT: Pounds, K.A., Nandra, K., Fink, H.H., Makino, F.,; 1994, MNRAS, 267, 193

1993

Solving the Mystery of the Periodicity in NGC 6814

ROSAT PSPC observations of NGC 7469 and Akn 120: Brandt, W.N., Fabian, A.C., Nandra, K., Tsuruta, S.,; 1993, MNRAS, 265, 996

X-ray Observations of the Warm Absorber in NGC 3783: Turner, T.J., Nandra, K., George, I.M., Fabian, A.C., Pounds, K.A.; 1993, ApJ, 419, 127.; (Online: PS)

Soft X-ray Observations of Seyfert 2 Galaxies: Turner, T.J., C.M.Urry and R.F.Mushotzky; 1993 Ap.J. 418, 653; (Online: PS)

OSSE observations of the bright Seyfert I galaxy IC4329a: Fabian, A.C., Nandra, K., Celotti, A.C., Rees, M.J., Grove, J.E, Johnson, W.N.,; 1993, ApJL, 416, L57. ERRATUM: ApJ, 421, L95; (Online: PS)

ROSAT PSPC Spectra of Six Seyfert 1 Galaxies: Turner, T.J., George, I.M., Mushotzky, R.F.,; 1993, ApJ, 412, 72.; (Online: PS)

Multiwavelength Monitoring of the BL Lac Object PKS2155-304. I. The IUE Campaign.: Urry, C.M., Maraschi, L., Edelson, R., Koratkar, A., Lrolik, J., Madejski, G., Pian, E., Pike, G., Reichert, G., Treves, A., Wansteker, W., Bohlin, R., Bregman, J., Brinkmann, W., Chiappetti, L. Couvoisier, T., Filippenko, A.V., Fink, H., George, I.M., Kondo, Y., Martin, P.G., Millar, H.R., O'Brien, P., Shull, J.M., Sitko, M., Szymkowiak, A.E., Tagliaferri, G., Wagner, S., Warwick, R.S.,; 1993, ApJ, 411, 614.; (Online: PS)

BBXRT and Ginga observations of the Seyfert 1 Galaxy Mrk 335: Turner, T.J., Nandra, K., Madejski, G.M., Marshall, F., Mushotzky, R.F., Petre, R., Pounds, K.A., Smale, A.P., Serlemitsos, P., Weaver, K., Zdziarski, A.A.,; 1993, ApJ, 407, 556; (Online: PS)

The X-ray Spectral Variability of the BL Lacertae type object PKS 2155-304: Sembay, S., Warwick, R.S., Urry, C.M., Sokoloski, J., George, I.M., Makino, F., Ohasji, T.,; 1993, ApJ, 404, 112.; (Online: PS)

A ROSAT Observation of NGC 5548: Nandra, K., Fabian, A.C., George, I.M., Branduardi-Raymont, G., Lawrence, A., Mason, K.O., McHardy, I.M., Pounds, K.A., Stewart, G.C., Ward, M.J., Warwick, R.S.,; 1993, MNRAS, 260, 504.

The Broad-Band X-ray Spectral Variability of Mkn 841: George, I.M., Nandra, K., Fabian, A.C., Turner, T.J., Done, C., Day, C.S.R.,; 1993, MNRAS, 260, 111.

1992

The X-ray Variability of NGC6814: Power Spectra

Highly ionized gas in the nucleus of the active galaxy MCG-6-30-15: Nandra, K., Pounds, K.A.,; 1992, Nat, 359, 215

Correlated hard X-ray and UV variability in NGC~5548: Clavel, J., Nandra, K., Makino, F., Pounds, K.A., Reichert, G.A., Urry, C.M., Wamsteker, W., Peracaula-Bosch, M.,; 1992, ApJ, 393, 113; (Online: PS)

Evidence for an ionized Reprocessor in NGC6814: Turner, T.J., C.Done, R.F.Mushotzky and G.M.Madejski; 1992, Ap.J., 391, 102; (Online: PS)

The role of Electron-Positron pairs in parsec-scale radio jets: Ghisellini, G., Celotti, A., George, I.M., Fabian, A.C.; 1992, MNRAS, 258, 776.

H0414+009 - an X-ray bright BL Lac with a steep-spectrum radio tail in a distant cluster of galaxies: McHardy, I.M., Luppino, G.A., George, I.M., Abraham, R.G., Cooke, B.A.; 1992, MNRAS, 256, 655.

1991

Einstein Observatory SSS & MPC observations of the Complex X-ray Spectra of Seyfert Galaxies

Rapid Ultraviolet variability in the BL Lacertae Object PKS 2155-304: Edelson, R.A., Saken, J., Pike, G., Urry, C.M., George, I.M., Warwick, R.S., Miller, H.R., Carini, M.T., Webb, J.R.; 1991, ApJL, 372, L9.; (Online: PS)

X-ray Reflection from Cold Matter in Active Galactic Nuclei and X-ray binaries: George, I.M., Fabian, A.C.; 1991, MNRAS, 249, 352.

Compton Reflection and the variable X-ray spectrum of NGC 5548: Nandra, K., Pounds, K.A., Stewart, G.C., George, I.M., Hayashida, K., Makino, F., Ohashi, T.; 1991, MNRAS, 248, 760.

Implications of the Ionizing Continuum of 3C 263: Crawford, C.S., Fabian, A.C., George, I.M., Naylor, T.; 1991, MNRAS, 248, 139.

Anisotropic Inverse Compton Radiation: Ghisellini, G., George, I.M., Fabian, A.C., Done, C.; 1991, MNRAS, 248, 14.

1990

GINGA observations of an intense variable iron line in Mkn 841

Steps toward Determination of the Size and Structure of the Broad Line Region in Active Galactic Nuclei. II. An intensive study of NGC5548 at Optical Wavelengths: B.M. Peterson et al.; 1990, ApJ, 368, 119

The X-ray emission of 3C273: Turner, M.J.L., Williams, O.R., Courvoisier, T.J.-L., Stewart, G.C., Nandra, K., Pounds, K.A., Ohashi, T., Makishima, K., Inoue, H., Kii, T., Makino, F., Hayashida, K, Tanaka, Y., Takano, S., Koyama, K,; 1990, MNRAS, 244, 310

Electron-Positron pairs, Compton-reflection and the X-ray spectra of Active Galactic Nuclei: Zdziarski, A.A., Ghisellini, G, George, I.M., Svensson, R., Fabian, A.C., Done, C.; 1990, ApJL, 363, L1.; (Online: PS)

Rapid Variability of the Iron Fluorescence Line from the Seyfert galaxy NGC6814: H. Kunieda, Turner, T.J., H. Awaki, K. Koyama, R.F. Mushotzky & Y. Tsusaka; 1990, Nature, 345, 876

New features in the X-ray spectra of Active Galactic Nuclei: Pounds, K.A., Nandra, K., Stewart, G.C., George, I.M., Fabian, A.C.; 1990, Nature, 344, 132.

The X--ray spectrum of MCG-6-30-15 and its temporal variability: Nandra, K., Pounds, K.A., Stewart, G.C.,; 1990, MNRAS, 242, 660

X-ray illuminated accretion discs: a model for the iron line in NGC 3227: George, I.M., Nandra, K., Fabian, A.C.; 1990, MNRAS, 242, 28P.

Reflection-dominated hard X-ray sources and the X-ray background: Fabian, A.C., George, I.M., Miyoshi, S., Rees, M.J.,; 1990, MNRAS, 242, 14P.

1989

Frequency dependent variability in synchrotron self-Compton models

The EXOSAT Spectral Survey of AGN: Turner, T.J., Pounds, K.A.,; 1989, MNRAS, 240, 833

Iron features in the X--ray spectra of three Seyfert galaxies: Pounds, K.A., Nandra, K., Stewart, G.C., Leighly, K.,; 1989, MNRAS, 240, 769

Detection of iron features in the X--ray spectrum of MCG-6-30-15: Nandra, K., Pounds, K.A., Stewart, G.C., Fabian, A.C., Rees, M.J.,; 1989, MNRAS, 236, 39P

1988

The Ultra-violet to X-ray Continua of BL Lac objects

Variability of the Soft Excess in the Seyfert I Galaxy Mkn 335: Turner, T.J., Pounds, K.A.,; 1988, MNRAS, 232, 463

X-ray and Ultra-violet observations of Markarian 421: George, I.M., Warwick, R.S., Bromage, G.E.; 1988, MNRAS, 232, 793.

Variable Low-Energy Absorption in the X-ray Spectrum of ESO 103-G35: Warwick, R.S., Pounds, K.A., Turner, T.J.,; 1988, MNRAS, 231, 1145

1987

Dramatic X-ra Variability in the Narrow Emission Line Galaxy NGC 7314

Discovery of a Strong Soft X-ray Excess in Mkn 335 - Evidence for an Accretion Disc ?: Pounds, K.A., Stanger, V.J., Turner, T.J., King, A.R., Czerny, B.,; 1987, MNRAS, 224, 443

1986

Rapid Variability of the Seyfert Galaxy MCG-6-30-15

The X-ray spectrum and variability of Markarian 421: Warwick, R.S., George, I.M., McHardy I., Pounds, K.A; 1986, MNRAS, 219, 39.

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