A correlation between the spectral and timing properties of AGN (2009)
Papadakis, I. E., Sobolewska, M., Arevalo, P., Markowitz, A., McHardy, I. M., Miller, L., ...
We present the results from a combined study of the average X-ray spectral and timing properties of 14 nearby AGN. For 11 of the sources in the sample, we used all the available data from the RXTE...
A Suzaku Observation of NGC 4593: Illuminating the Truncated Disk (2009)
We report results from a 2007 Suzaku observation of the Seyfert 1 AGN NGC 4593. The narrow Fe K alpha emission line has a FWHM width ~4000 km/s, indicating emission from >~ 5000 Rg. There is no...
Chandra detection of a parsec scale wind in the Broad Line Radio Galaxy 3C 382 (2009)
Reeves, J. N., Sambruna, R. M., Braito, V., Eracleous, M.
We present unambiguous evidence for a parsec scale wind in the Broad-Line Radio Galaxy (BLRG) 3C 382, the first radio-loud AGN, with $R_{\rm L} = \log_{10}(f_{\rm 5GHz}/f_{4400})>1$, whereby an...
Short-term variability and PSD analysis of the radio-loud AGN 3C 390.3 (2009)
Gliozzi, M., Papadakis, I. E., Eracleous, M., Sambruna, R. M., Ballantyne, D. R., Braito, V., ...
We investigate the short-term variability properties and the power spectral density (PSD) of the Broad-Line Radio Galaxy (BLRG) 3C 390.3 using observations made by XMM, RXTE, and Suzaku on several...
Structure of the accretion flow in broad-line radio galaxies: the case of 3C 390.3 (2009)
Sambruna, R. M., Reeves, J. N., Braito, V., Lewis, K. T., Eracleous, M., Gliozzi, M., ...
We present XMM-Newton and Suzaku observations of the broad-line radio galaxy 3C 390.3 acquired in 2004 October and 2006 December, respectively. An archival Swift BAT spectrum from the 9 month survey...
The absorption-dominated model for the X-ray spectra of type I active galaxies: MCG-6-30-15 (2009)
Miller, L., Turner, T. J., Reeves, J. N.
MCG-6-30-15 is the archetypal example of a type I active galaxy showing broad "red-wing" emission in its X-ray spectrum at energies below the 6.4 keV Fe K-alpha emission line and a continuum excess...
Structure of the Accretion Flow in Broad-Line Radio Galaxies: The Case of 3C390.3 (2009)
Sambruna, R. M., Reeves, J. N., Braito, V., Lewis, K. T., Eracleous, M., Gliozzi, M., ...
We present XMM and Suzaku observations of the Broad-Line Radio Galaxy (BLRG) 3C390.3. The Fe Ka line has a width FWHM ~ 8,800 km/s, consistent within a factor two with the width of the double-peaked...
A Compton-thick Wind in the High Luminosity Quasar, PDS 456 (2009)
Reeves, J. N., O'Brien, P. T., Braito, V., Behar, E., Miller, L., Turner, T. J., ...
PDS 456 is a nearby (z=0.184), luminous (L_bol ~10^47 erg/s) type I quasar. A deep 190 ks Suzaku observation in February 2007 revealed the complex, broad band X-ray spectrum of PDS 456. The Suzaku...
A Suzaku observation of the ULIRG IRAS19254-7245: disclosing the AGN component (2009)
Braito, V., Reeves, J. N., Della Ceca, R., Ptak, A., Risaliti, G., Yaqoob, T.
We discuss here a long Suzaku observation of IRAS 19254-7245 (also known as the Superantennae), one of the brightest and well studied Ultra Luminous Infrared Galaxies in the local Universe. This long...
Turner, T. J., Miller, L., Kraemer, S. B., Reeves, J. N., Pounds, K. A.
We present results from a 200 ks Suzaku observation of 1H 0419-577 taken during 2007 July. The source shows a strong excess of counts above 10 keV compared to the extrapolation of models based on...
We report two new XMM-Newton observations of PG1211+143 in December 2007, finding further evidence of the fast outflow of highly ionised gas, first detected in 2001. Stacking the new spectra with...
X-Ray Spectral Variability of the Seyfert Galaxy NGC 4051 Observed with Suzaku (2008)
Terashima, Y., Gallo, L. C., Inoue, H., Markowitz, A. G., Reeves, J. N., Anabuki, N., ...
We report results from a Suzaku observation of the narrow-line Seyfert 1 NGC 4051. During our observation, large amplitude rapid variability is seen and the averaged 2--10 keV flux is 8.1x10^-12 erg...
A Comprehensive X-ray Spectral Analysis of the Seyfert 1.5 NGC 3227 (2008)
Markowitz, A., Reeves, J. N., George, I. M., Braito, V., Smith, R., Vaughan, S., ...
We present results of a 100 ks XMM observation of the Seyfert 1.5 NGC 3227. Our best-fit broadband model to the pn spectrum consists of a moderately flat (photon index 1.57) hard X-ray power-law...
An absorption origin for the X-ray spectral variability of MCG-6-30-15 (2008)
Miller, L., Turner, T. J., Reeves, J. N.
The Seyfert I galaxy MCG-6-30-15 shows one of the best examples of a broad "red wing" of emission in its X-ray spectrum at energies 2 < E < 6.4 keV, commonly interpreted as being caused by...
Tracing a Disk Wind in NGC 3516 (2008)
Turner, T. J., Reeves, J. N., Kraemer, S. B., Miller, L.
X-ray spectra of AGN often contain signatures indicative of absorption in multiple layers of gas whose ionization-state and covering fraction may vary with time. It has been unclear to date how much...
The Suzaku Observation of NGC 3516: Complex Absorption and the Broad and Narrow Fe K Lines (2007)
Markowitz, A., Reeves, J. N., Miniutti, G., Serlemitsos, P., Kunieda, H., Yaqoob, T., ...
We present results from a 150 ksec Suzaku observation of the Seyfert 1.5 NGC 3516 in October 2005. The source was in a relatively highly absorbed state. Our best-fit model is consistent with the...
An XMM-Newton survey of broad iron lines in Seyfert galaxies (2007)
Nandra, K., O'Neill, P. M., George, I. M., Reeves, J. N.
We present an analysis of the X-ray spectra of a sample of 37 observations of 26 Seyfert galaxies observed by XMM-Newton in order to characterize their iron K emission. All objects show evidence for...
The Variable X-ray Spectrum of Markarian 766 - II. Time-Resolved Spectroscopy (2007)
Turner, T. J., Miller, L., Reeves, J. N., Kraemer, S. B.
CONTEXT: The variable X-ray spectra of AGN systematically show steep power-law high states and hard-spectrum low states. The hard low state has previously been found to be a component with only weak...
Relativistic Iron K Emission and absorption in the Seyfert 1.9 galaxy MCG-5-23-16 (2007)
Braito, V., Reeves, J. N., Dewangan, G. C., George, I., Griffiths, R. E., Markowitz, A., ...
We present the results of the simultaneous deep XMM and Chandra observations of the bright Seyfert 1.9 galaxy MCG-5-23-16, which is thought to have one of the best known examples of a...
Markowitz, A., Takahashi, T., Watanabe, S., Nakazawa, K., Fukazawa, Y., Kokubun, M., ...
A Suzaku observation of the nucleus of the radio-loud AGN Centaurus A in 2005 has yielded a broadband spectrum spanning 0.3 to 250 keV. The net exposure times after screening were: 70 ks per X-ray...
The remarkable X-ray spectrum of the Broad-Line Radio Galaxy 3C 445 (2007)
Sambruna, R. M., Reeves, J. N., Braito, V.
We present the results of the analysis of an archival 15 ks XMM-Newton observation of the nearby (z=0.057) radio-loud source 3C445, optically classified as a Broad-Line Radio Galaxy. While the RGS...
An XMM-Newton view of the X-ray flat radio-quiet quasar PG 1416-129 (2007)
Porquet, D., Reeves, J. N., Markowitz, A., Turner, T. J., Miller, L., Nandra, K.
An XMM-Newton view of the X-ray flat radio-quiet quasar PG 1416-129 (2006)
Porquet, D., Reeves, J. N., Markowitz, A., Turner, T. J., Miller, L., Nandra, K.
(abridged) The radio-quiet quasar PG1416-129 (z=0.129) exhibits atypical optical and X-ray properties. Between 1990 and 2000, in response to its optical continuum decrease, the ``classical'' broad...
The soft X-ray spectrum of PG1211+143 (2006)
Pounds, K. A., Page, K. L., Reeves, J. N.
The narrow line QSO PG1211+143 has been a focus of recent attempts to understand the soft excess in AGN, while the 2001 XMM-Newton observation of this luminous AGN also provided evidence for a...
The variable X-ray spectrum of Markarian 766 - I. Principal components analysis (2006)
Miller, L., Turner, T. J., Reeves, J. N., George, I. M., Kraemer, S. B., Wingert, B.
Aims: We analyse a long XMM-Newton spectrum of the narrow-line Seyfert 1 galaxy Mrk 766, using the marked spectral variability on timescales >20ks to separate components in the X-ray spectrum....
The Energy-dependent X-ray Timing Characteristics of the Narrow Line Seyfert 1 Mkn 766 (2006)
Markowitz, A., Papadakis, I. E., Arevalo, P., Turner, T. J., Miller, L., Reeves, J. N.
We present the energy-dependent power spectral density (PSD) and cross-spectral properties of Mkn 766, obtained from combining data obtained during an XMM-Newton observation spanning six revolutions...
An XMM-Newton survey of broad iron lines in AGN (2006)
Nandra, K., O'Neill, P. M., George, I. M., Reeves, J. N., Turner, T. J.
We report on the iron K-alpha line properties of a sample of Seyfert galaxies observed with the XMM-Newton EPIC pn instrument. Using a systematic and uniform analysis, we find that complexity at...
Suzaku Observations of Iron Lines and Reflection in AGN (2006)
Reeves, J. N., Fabian, A. C., Kataoka, J., Kunieda, H., Markowitz, A., Miniutti, G., ...
Initial results on the iron K-shell line and reflection component in several AGN observed as part of the Suzaku Guaranteed time program are reviewed. This paper discusses a small sample of...
An XMM-Newton observation of the bright QSO PG1211+143 in 2001 revealed a blue-shifted absorption line spectrum indicative of a high velocity radial outflow of highly ionised gas. Unless highly...
Swift and Suzaku Observations of the X-Ray Afterglow from the GRB 060105 (2006)
Tashiro, M. S., Abe, K., Angelini, L., Barthelmy, S., Gehrels, N., Ishikawa, N., ...
Results are presented of early X-ray afterglow observations of GRB 060105 by Swift and Suzaku. The bright, long gamma-ray burst GRB 060105 triggered the Swift Burst Alert Telescope (BAT) at 06:49:28...
Variable iron-line emission near the black hole of Markarian 766 (2006)
Miller, L., Turner, T. J., Reeves, J. N., George, I. M., Porquet, D., Nandra, K., ...
We investigate the link between ionised Fe X-ray line emission and continuum emission in the bright nearby AGN, Mrk 766. A new long (433 ks) XMM-Newton observation is analysed, together with archival...
Pounds, Kenneth A., Reeves, J.N.
Accepted for publication in Monthly Notices of the Royal Astronomical Society
Swift and XMM-Newton observations of the dark GRB 050326 (2006)
Moretti, Alberto, De Luca, A., Malesani, D., Campana, Sergio, Tiengo, A., Cucchiara, A., ...
The definitive version of this paper is available from www.edpsciences.org/aa
Suzaku observation of NGC 3516: complex absorption and the broad and narrow Fe K lines (2006)
Markowitz, A., Reeves, J. N., Serlemitsos, P., Yaqoob, T., Awaki, H., Fabian, A., ...
The iron emission line complex of MCG-5-23-16: the long XMM-Newton look (2006)
Braito, V., Reeves, J. N., Dewangan, G., George, I., Griffiths, R., Markowitz, A., ...
Variable iron-line emission near the black hole of Markarian 766 (2006)
Miller, L., Turner, T. J., Reeves, J. N., George, I. M., Porquet, D., Nandra, K., ...
Watson, D., Fynbo, J.P.U., Ledoux, C., Vreeswijk, P., Hjorth, J., Smette, A., ...
The optical afterglow spectrum of GRB 050401 (at z=2.8992+/-0.0004) shows the presence of a damped Lyalpha absorber (DLA), with logNHI=22.6+/-0.3. This is the highest column density ever observed in...
New insights into ultraluminous X-ray sources from deep XMM-Newton observations (2006)
Roberts, T.P., Stobbart, A.M., Goad, M.R., Warwick, R.S., Wilms, J., Uttley, P., ...
The controversy over whether ultraluminous X-ray sources (ULXs) contain a new intermediate-mass class of black holes (IMBHs) remains unresolved. We present new analyses of the deepest XMM-Newton...
The Highly Red-Shifted Fe Kα Line in ESO 113-G010 (2006)
Porquet, D., Reeves, J.N., Uttley, P., Turner, T.J.
Not Available
Goad, M.R., Roberts, T.P., Reeves, J.N., Uttley, P.
We present results from a 112-ks long look by XMM-Newton at the ultraluminous X-ray source (ULX) Holmberg II X-1 (Ho II X-1), long thought to be the one of best candidates for the missing class of...
Swift and XMM observations of the dark GRB 050326 (2005)
Moretti, A., De Luca, A., Malesani, D., Campana, S., Tiengo, A., Cucchiara, A., ...
We present Swift and XMM observations of GRB 050326, detected by Swift-BAT. The fluence was 7.7x10^-6 erg cm^-2 (20-150 keV), and its spectrum was hard, with a power law photon index 1.25. The...
Barthelmy, S. D., Cannizzo, J. K., Gehrels, N., Cusumano, G., Mangano, V., O'Brien, P. T., ...
BAT and XRT observations of two recent well-covered GRBs observed by Swift, GRB 050315 and GRB 050319, show clearly a prompt component joining the onset of the afterglow emission. By fitting a power...
Reeves, J.N., Pounds, Kenneth A., Uttley, P., Kraemer, S., Mushotzky, R., Yaqoob, T., ...
The definitive version of this paper, with enhancements, is available from http://www.journals.uchicago.edu/ApJ/journal/issues/ApJL/v633n2/19868/19868.html
New insights into ultraluminous X-ray sources from deep XMM-Newton observations (2005)
Roberts, T. P., Goad, M. R., Warwick, R. S., Wilms, J., Uttley, P., ...
The controversy over whether ultraluminous X-ray sources (ULXs) contain a new intermediate-mass class of black holes (IMBHs) remains unresolved. We present new analyses of the deepest XMM-Newton...
A log N(HI) = 22.6 DLA in a dark gamma-ray burst: the environment of GRB 050401 (2005)
Watson, D., Fynbo, J. P. U., Ledoux, C., Vreeswijk, P., Hjorth, J., Smette, A., ...
The optical afterglow spectrum of GRB050401 (at z=2.8992+/-0.0004) shows the presence of a DLA, with log(nHI)=22.6+/-0.3. This is the highest column density ever observed in a DLA, and is about five...
Goad, M. R., Roberts, T. P., Reeves, J. N., Uttley, P.
We present results from a 112 ks long look by XMM-Newton at the ultraluminous X-ray source (ULX) Holmberg II X-1, long thought to be the one of best candidates for the missing class of intermediate...
Watson, D., Reeves, J. N., Hjorth, J., Fynbo, J. P. U., Jakobsson, P., Pedersen, K., ...
Gamma-ray burst (GRB) 050904 is the most distant X-ray source known, at z=6.295, comparable to the farthest AGN and galaxies. Its X-ray flux decays, but not as a power-law; it is dominated by large...
The soft X-ray blast in the apparently sub-luminous GRB 031203 (2005)
Watson, D., Vaughan, S. A., Willingale, R., Hjorth, J., Foley, S., Fynbo, J. P. U., ...
GRB031203 was a very low apparent luminosity gamma-ray burst (GRB). It was also the first GRB with a dust-scattered X-ray halo. The observation of the halo allowed us to infer the presence of a large...
Reeves, J. N., Pounds, K., Uttley, P., Kraemer, S., Mushotzky, R, Yaqoob, T., ...
We report the detection of redshifted iron K-alpha absorption lines in the Chandra LETG spectrum of the narrow-line quasar, PG 1211+143. The absorption lines are observed at 4.22 keV and 4.93 keV in...
XMM-Newton spectroscopy of high-redshift QSOs (2005)
Page, K. L., Reeves, J. N., O'Brien, P. T., Turner, M. J. L.
XMM-Newton observations of 29 high redshift (z>2) quasars, including seven radio-quiet, 16 radio-loud and six Broad Absorption Line (BAL) objects, are presented; due to the high redshifts, the...
Evidence for Orbital Motion of Material Close to the Central Black Hole of Mrk 766 (2005)
Turner, T. J., Miller, L., George, I. M., Reeves, J. N.
Time-resolved X-ray spectroscopy has been obtained for the narrow line Seyfert galaxy Mrk766 from XMM-Newton observations. We present analysis in the energy-time plane of EPIC pn data in the 4-8 keV...
Chandra High-Resolution X-ray Spectroscopy of the Fe K Line in the Seyfert 1 Galaxy NGC 3783 (2005)
Yaqoob, T., Reeves, J. N., Markowitz, A., Serlemitsos, P. J., Padmanabhan, U.
We report on the results of detailed X-ray spectroscopy of the Fe K region in the Seyfert 1 galaxy NGC 3783 from five ~170 ks observations with the Chandra high energy gratings. Monitoring was...
A changing inner radius in the accretion disc of Q0056-363? (2005)
Matt, G., Porquet, D., Bianchi, S., Falocco, S., Maiolino, R., Reeves, J. N., ...
Q0056-363 is the most powerful X-ray quasar known to exhibit a broad, likely relativistic iron line (Porquet & Reeves 2003). It has been observed twice by XMM-$Newton$, three and half years apart...
A changing inner radius in the accretion disc of Q0056-363? (2005)
Matt, G., Porquet, D., Bianchi, S., Falocco, S., Maiolino, R., Reeves, J. N., ...
Pounds, Kenneth A., Reeves, J.N., Page, Kim L., O'Brien, Paul T.
The definitive version of this paper, with enhancements, is available from http://www.journals.uchicago.edu/ApJ/journal/issues/ApJ/v616n2/60561/60561.html
Complex X-ray Absorption and the Fe Kalpha Profile in NGC 3516 (2004)
Turner, T. J., Kraemer, S. B., George, I. M., Reeves, J. N., Bottorff, M. C.
We present data from simultaneous Chandra, XMM-Newton and BeppoSAX observations of the Seyfert 1 galaxy NGC 3516, taken during 2001 April and Nov. We have investigated the nature of the very flat...
Reeves, J. N., Porquet, D., Turner, T. J.
We report on a short XMM-Newton observation of the radio-quiet Narrow Line Seyfert 1 PG 1402+261. The EPIC X-ray spectrum of PG 1402+261 shows a strong excess of counts between 6-9 keV in the rest...
Pounds, K. A., Reeves, J. N., Page, K. L., O'Brien, P. T.
An XMM-Newton observation of the luminous Seyfert 1 galaxy 1H 0419-577 in September 2002, when the source was in an extreme low-flux state, found a very hard X-ray spectrum at 1-10 keV with a strong...
XMM-Newton observations of high-luminosity radio-quiet QSOs (2004)
Page, K. L., Reeves, J. N., O'Brien, P. T., Turner, M. J. L., Worrall, D. M.
XMM Newton observations of five high-luminosity radio-quiet QSOs (Q 0144-3938, UM 269, PG 1634+706, SBS 0909+532 and PG 1247+267) are presented. Spectral energy distributions were calculated from the...
Exploring the complex X-ray spectrum of NGC 4051 (2004)
Pounds, Kenneth A., Reeves, J.N., King, Andrew R., Page, Kim L.
Also available at http://www.blackwell-synergy.com/doi/abs/10.1111/j.1365-2966.2004.07639.x. The definitive version is available at www.blackwell-synergy.com.
An XMM-Newton observation of the Seyfert 1 galaxy 1H 0419-577 in a extreme low state (2004)
Pounds, Kenneth A., Reeves, J.N., Page, Kim L., O'Brien, Paul T.
The definitive version of this paper is available from http://www.journals.uchicago.edu/ApJ/journal/issues/ApJ/v605n2/59421/59421.html
XMM-Newton EPIC observations of 21 low-redshift PG quasars (2004)
Porquet, D., Reeves, J. N., O'Brien, P., Brinkmann, W.
We present an X-ray spectral analysis of 21 low redshift quasars observed with XMM-Newton EPIC. All the sources are Palomar Green quasars with redshifts between 0.05 and 0.4 and have low Galactic...
The XMM-Newton iron line profile of NGC 3783 (2004)
Reeves, J.N., Nandra, K., George, I.M., Pounds, Kenneth A., Turner, T.J., Yaqoob, T.
The definitive version of this paper is that available at http://www.journals.uchicago.edu/ApJ/journal/issues/ApJ/v602n2/58961/58961.html
XMM-Newton observations of the BL Lac MS0205.7+3509: a dense, low-metallicity absorber (2004)
Watson, D., McBreen, B., Hanlon, L., Reeves, J. N., Smith, N., Perlman, E., ...
The high-frequency-peaked BL Lac, MS0205.7+3509 was observed twice with XMM-Newton. Both X-ray spectra are synchrotron-dominated, with mean 0.2--10keV fluxes of 2.80+/-0.01 and 3.34+/-0.02 E-12...
A very low luminosity X-ray flash: XMM-Newton observations of GRB 031203 (2004)
Watson, D., Hjorth, J., Levan, A., Jakobsson, P., O'Brien, P. T., Osborne, J. P., ...
GRB031203 was observed by XMM-Newton twice, first with an observation beginning 6 hours after the burst, and again after 3 days. The afterglow had average 0.2-10.0keV fluxes for the first and second...
An XMM-Newton observation of the Seyfert 1 galaxy 1H 0419-577 in an extreme low state (2004)
Pounds, K. A., Reeves, J. N., Page, K. L., O'Brien, P. T.
Previous observations of the luminous Seyfert 1 galaxy 1H 0419-577 have found its X-ray spectrum to range from that of a typical Seyfert 1 with 2-10 keV power law index Gamma ~ 1.9 to a much flatter...
A Very Low Luminosity X-Ray Flash: XMM-Newton Observations of GRB 031203 (2004)
Watson, D., Hjorth, J., Levan, Andrew J., Jakobsson, P., O'Brien, Paul T., Osborne, Julian P., ...
The discovery of an evolving dust scattering X-ray halo around GRB 031203 (2004)
Vaughan, Simon A., Willingale, R., O'Brien, Paul T., Osborne, Julian P., Reeves, J.N., Levan, Andrew J., ...
Gamma-Ray Bursts observed by XMM-Newton (2003)
O'Brien, P. T., Reeves, J. N., Watson, D., Osborne, J., Willingale, R.
Analysis of observations with XMM-Newton have made a significant contribution to the study of Gamma-ray Burst (GRB) X-ray afterglows. The effective area, bandpass and resolution of the EPIC...
The discovery of an evolving dust scattered X-ray halo around GRB 031203 (2003)
Vaughan, S., Willingale, R., O'Brien, P. T., Osborne, J. P., Reeves, J. N., Levan, A. J., ...
We report the first detection of a time-dependent, dust-scattered X-ray halo around a gamma-ray burst. GRB 031203 was observed by XMM-Newton starting six hours after the burst. The halo appeared as...
XMM-Newton observations of 3C 273 (2003)
Page, K. L., Turner, M. J. L., Done, C., O'Brien, P. T., Reeves, J. N., Sembay, S., ...
A series of nine XMM-Newton observations of the radio-loud quasar 3C 273 are presented, concentrating mainly on the soft excess. Although most of the individual observations do not show evidence for...
Pounds, Kenneth A., Reeves, J.N., King, Andrew R., Page, Kim L., O'Brien, Paul T., Turner, Martin J.L.
Also available from http://www.blackwell-synergy.com/doi/abs/10.1046/j.1365-8711.2003.07006.x. The definitive version is available from www.blackwell-synergy.com. Erratum published in Monthly Notices...
Transient Relativistically-Shifted Lines as a Probe of Black Hole Systems (2003)
Turner, T. J., Kraemer, S. B., Reeves, J. N.
X-ray spectra of Seyfert galaxies have revealed a new type of X-ray spectral feature, one which appears to offer important new insight into the black hole system. XMM/Chandra revealed several narrow...
The XMM-Newton Iron Line Profile of NGC 3783 (2003)
Reeves, J. N, Nandra, K., George, I. M., Pounds, K. A., Turner, T. J., Yaqoob, T.
We report on observations of the iron K line in the nearby Seyfert 1 galaxy, NGC 3783, obtained in a long, 2 orbit (240 ks) XMM-Newton observation. The line profile obtained exhibits two strong...
Exploring the complex X-ray spectrum of NGC 4051 (2003)
Pounds, K. A., Reeves, J. N., King, A. R., Page, K. L.
Archival XMM-Newton data on the nearby Seyfert galaxy NGC 4051, taken in relatively high and low flux states, offer a unique opportunity to explore the complexity of its X-ray spectrum. We find the...
An X-ray Baldwin effect for the narrow Fe K-alpha lines observed in Active Galactic Nuclei (2003)
Page, K. L., O'Brien, P. T., Reeves, J. N., Turner, M. J. L.
The majority of Active Galactic Nuclei (AGN) observed by XMM-Newton reveal narrow Fe K-alpha lines at ~ 6.4 keV, due to emission from cold (neutral) material. There is an X-ray Baldwin effect in Type...
X-ray fluctuation power spectral densities of Seyfert 1 galaxies (2003)
Markowitz, A., Edelson, R., Vaughan, Simon, Uttley, P., George, I.M., Griffiths, R.E., ...
The definitive version of this paper is available from http://www.journals.uchicago.edu/ApJ/journal/issues/ApJ/v593n1/56874/56874.html
A massive x-ray outflow from the quasar PDS 456. (2003)
Reeves, J. N., O'Brien, P. T., Ward, M. J.
We report on XMM-Newton spectroscopic observations of the luminous radio-quiet quasar PDS 456. The hard X-ray spectrum of PDS 456 shows a deep absorption trough (constituting 50% of the continuum) at...
Pounds, Kenneth A., Reeves, J.N., Page, Kim L., Wynn, Graham A., O'Brien, Paul T.
Also available at http://www.blackwell-synergy.com/doi/abs/10.1046/j.1365-8711.2003.06611.x. The definitive version is available at www.blackwell-synergy.com.
Delayed soft X-ray emission lines in the afterglow of GRB 030227 (2003)
Watson, D., Reeves, J. N., Hjorth, J., Jakobsson, P., Pedersen, K.
Strong, delayed X-ray line emission is detected in the afterglow of GRB 030227, appearing near the end of the XMM-Newton observation, nearly twenty hours after the burst. The observed flux in the...
Detection of type-2 quasars in the radio galaxies B3 0731+438 and 3C 257 (2003)
Derry, P. M., O'Brien, P. T., Reeves, J. N., Ward, M. J., Imanishi, M., Ueno, S.
We present XMM-Newton observations and spectral fitting of two highly redshift, [OIII]-luminous, narrow-line radio galaxies, B3 0731+438 and 3C 257. Their X-ray continua are well fitted by a partial...
Pounds, K. A., Reeves, J. N., King, A. R., Page, K. L., O'Brien, P. T., Turner, M. J. L.
We report on the analysis of a ~60 ksec XMM observation of the bright, narrow emission line quasar PG 1211+143. Absorption lines are seen in both EPIC and RGS spectra corresponding to H- and He-like...
Pounds, K. A., Reeves, J. N., Page, K. L., Wynn, G. A., O'Brien, P. T.
We report on the analysis of a long XMM-Newton EPIC observation in 2001 May of the Narrow Line Seyfert 1 galaxy Mkn 766. The 3-11 keV spectrum exhibits a moderately steep power law continuum, with a...
An XMM-Newton observation of the Narrow Line Seyfert 1 Galaxy, Markarian 896 (2003)
Page, K. L., O'Brien, P. T., Reeves, J. N., Breeveld, A. A.
XMM-Newton observations of the NLS1 Markarian 896 are presented. Over the 2-10 keV band, an iron emission line, close to 6.4 keV, is seen. The line is just resolved and has an equivalent width of...
Pounds, Kenneth A., Reeves, J.N., King, Andrew R., Page, Kim L., O'Brien, Paul T., Turner, Martin J.L.
The X-ray afterglow of GRB 020322 (2002)
Watson, D., Reeves, J. N., Osborne, J. P., Tedds, J. A., O'Brien, P. T., Tomas, L., ...
The spectrum of the afterglow of GRB 020322 is the highest-quality X-ray spectrum of a GRB afterglow available to date. It was detected by XMM-Newton in an observation starting fifteen hours after...
Pounds, K. A., Reeves, J. N., Page, K. L., Edelson, R., Matt, G., Perola, G. C.
We report the spectral analysis of a long XMM-Newton observation of the well-studied, moderate luminosity Broad Line Seyfert 1 galaxy NGC 5548. The source was at an historically average brightness...
Serendipitous AGN in the XMM-Newton fields of Markarian 205 and QSO 0130-403 (2002)
Page, K. L., Turner, M. J. L., Reeves, J. N., O'Brien, P. T., Sembay, S.
The X-ray spectra of serendipitously observed AGN in the XMM-Newton fields of Mrk 205 and QSO 0130-403 are analysed. The sample consists of 23 objects, none of which is detected at radio frequencies,...
The X-ray afterglows of gamma-ray bursts GRB 001025A and GRB 010220 observed with XMM-Newton (2002)
Watson, D., Reeves, J. N., Osborne, J., O'Brien, P. T., Pounds, K. A., Tedds, J. A., ...
The X-ray afterglows of GRB 001025A and GRB 010220 were detected by XMM-Newton with an average 0.2--10.0 keV flux of 4.4 and 3.3x10^{-14} erg cm^{-2} s^{-1} respectively; the afterglow of GRB 001025A...
Reeves, J. N., Watson, D., Osborne, J. P., Pounds, K. A., Brien, P. T. O
We report on an XMM-Newton observation of the X-ray afterglow of the Gamma Ray Burst GRB 011211, originally detected by Beppo-SAX on 11th December 2001. The early afterglow spectrum obtained by...
The Signature of Supernova Ejecta Measured in the X-ray Afterglow of Gamma-Ray Burst 011211 (2002)
Reeves, J. N., Watson, D., Osborne, J. P., Pounds, K. A., O'Brien, P. T., Short, A. D. T., ...
Since their identification with cosmological distances, Gamma-ray bursts (GRBs) have been recognised as the most energetic phenomena in the Universe, with an isotropic burst energy as high as 10^54...
The X-ray afterglows of gamma-ray bursts GRB 001025A and GRB 010220 observed with XMM-Newton (2002)
Watson, D., Reeves, J.N., Osborne, Julian P., O'Brien, Paul T., Pounds, Kenneth A., Tedds, J.A., ...
The signature of supernova ejecta in the X-ray afterglow of the gamma-ray burst 011211 (2002)
Reeves, J.N., Watson, D., Osborne, Julian P., Pounds, Kenneth A., O'Brien, Paul T., Short, A.D.T., ...
The highly variable X-ray spectrum of the luminous Seyfert 1 galaxy 1H 0419-577 (2001)
Page, K. L., Pounds, K. A., Reeves, J. N., O'Brien, P. T.
An XMM-Newton observation of the luminous Seyfert 1 galaxy 1H 0419-577 is presented. We find that the spectrum is well fitted by a power law of canonical slope (gamma ~ 1.9) and 3 blackbody...
An XMM-Newton observation of the extreme Narrow Line Seyfert 1 Galaxy, Mrk 359 (2001)
O'Brien, P. T., Page, K., Reeves, J. N., Pounds, K., Turner, M. J. L., Puchnarewicz, E. M.
We present XMM-Newton observations of Mrk 359, the first Narrow Line Seyfert 1 galaxy discovered. Even among NLS1s, Mrk 359 is an extreme case with extraordinarily narrow optical emission lines. The...
The European Photon Imaging Camera on XMM-Newton: the MOS cameras (2001)
Turner, Martin J.L., Abbey, A.F., Arnaud, M., Balasini, M., Barbera, M., Belsole, E., ...
The definitive version of this paper is available from www.aanda.org.
The European Photon Imaging Camera on XMM-Newton: The MOS cameras (2001)
Turner, Martin J.L., Abbey, A.F., Arnaud, M., Balasini, M., Barbera, M., Belsole, E., ...
The first ten authors are listed, and then all the University of Leicester authors. Please use the DOI to find the full author list.
XMM-Newton monitoring of X-ray variability in the quasar PKS 0558-504 (2000)
Gliozzi, M., Brinkmann, W., O'Brien, P. T., Reeves, J. N., Pounds, K. A., Trifoglio, M., ...
We present the temporal analysis of X-ray observations of the radio-loud Narrow-Line Seyfert 1 galaxy (NLS1) PKS 0558-504 obtained during the XMM-Newton Calibration and Performance Verification...
XMM-Newton First-Light Observations of the Hickson Galaxy Group 16 (2000)
Turner, M. J. L., Reeves, J. N., Ponman, T. J., Arnaud, M., Barbera, M., Bennie, P. J., ...
This paper presents the XMM-Newton first-light observations of the Hickson-16 compact group of galaxies. Groups are possibly the oldest large-scale structures in the Universe, pre-dating clusters of...
XMM-Newton observation of an unusual iron line in the quasar Markarian 205 (2000)
Reeves, J. N., Turner, M. J. L, Pounds, K. A., O'Brien, P. T., Boller, Th., Ferrando, P., ...
XMM-Newton observations of the low luminosity, radio-quiet quasar Markarian 205 have revealed a unique iron K emission line profile. In marked contrast to the broad and redshifted iron K line...
XMM-Newton Detection of a Comptonized Accretion Disc in the Quasar PKS0558-504 (2000)
O'Brien, P. T., Reeves, J. N., Turner, M. J. L., Pounds, K. A., Page, M., Gliozzi, M., ...
We present XMM-Newton observations of the bright quasar PKS0558-504. The 0.2-10 keV spectrum is dominated by a large, variable soft X-ray excess. The fastest flux variations imply accretion onto a...
The first XMM-Newton spectrum of a high redshift quasar - PKS 0537-286 (2000)
Reeves, J. N., Turner, M. J. L., Bennie, P. J., Pounds, K. A., Short, A., O'Brien, P. T., ...
We present XMM-Newton observations of the high redshift z=3.104, radio-loud quasar PKS 0537-286. The EPIC CCD cameras provide the highest signal-to-noise spectrum of a high-z quasar to date. The EPIC...
Astronomy Astrophysics The European Photon Imaging Camera on XMM-Newton: The MOS cameras (2000)
A. Abbey, M. Arnaud, M. Balasini, M. Barbera, E. Belsole, ...
Abstract. The EPIC focal plane imaging spectrometers on XMM-Newton use CCDs to record the images and spectra of celestial X-ray sources focused by the three X-ray mirrors. There is one camera at the...
PDS 456: an Extreme Accretion Rate Quasar? (1999)
Reeves, J. N., O'Brien, P. T., Vaughan, S., Law-Green, D., Ward, M., Simpson, C., ...
We present quasi-simultaneous ASCA and RXTE observations of the most luminous known AGN in the local (z