Search Results - "Lobban, A."

The Variable Fast Soft X-Ray Wind in PG 1211+143 by Reeves, J. N., Lobban, A., Pounds, K. A.

“…The analysis of a series of seven observations of the nearby (z = 0.0809) QSO PG 1211+143, taken with the Reflection Grating Spectrometer (RGS) onboard…”
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A Suzaku survey of Fe K lines in Seyfert 1 active galactic nuclei by Patrick, A. R., Reeves, J. N., Porquet, D., Markowitz, A. G., Braito, V., Lobban, A. P.

“…ABSTRACT We construct full broad‐band models in an analysis of Suzaku observations of nearby Seyfert 1 active galactic nuclei (AGN) (z ≤ 0.2) with exposures…”
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An Eddington-limited Accretion Disk Wind in the Narrow-line Seyfert 1 PG 1448+273 by Reeves, J. N., Braito, V., Luminari, A., Porquet, D., Laurenti, M., Matzeu, G., Lobban, A., Hagen, S.

“…Abstract PG 1448+273 is a luminous, nearby ( z = 0.0645), narrow-line Seyfert 1 galaxy, which likely accretes close to the Eddington limit. Previous X-ray…”
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Rapid Variability of the Accretion Disk Wind in the Narrow-line Seyfert 1, PG 1448+273 by Reeves, J. N., Braito, V., Porquet, D., Laurenti, M., Lobban, A., Matzeu, G.

“…Abstract PG 1448+273 is a luminous, nearby ( z = 0.0645), narrow-line Seyfert 1 galaxy, which likely accretes close to the Eddington limit. XMM-Newton…”
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Iron line profiles in Suzaku spectra of bare Seyfert galaxies by Patrick, A. R., Reeves, J. N., Porquet, D., Markowitz, A. G., Lobban, A. P., Terashima, Y.

“…We methodically model the broad-band Suzaku spectra of a small sample of six 'bare' Seyfert galaxies: Ark 120, Fairall 9, MCG −02-14-009, Mrk 335, NGC 7469 and…”
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Origins of the UV/X-ray relation in Arakelian 120 by Mahmoud, R D, Done, C, Porquet, D, Lobban, A

“…ABSTRACT We explore the accretion geometry in Arakelian 120 using intensive UV and X-ray monitoring from Swift. The hard X-rays (1–10 keV) show large…”
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A rapid occultation event in NGC 3227 by Turner, T J, Reeves, J N, Braito, V, Lobban, A, Kraemer, S, Miller, L

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A DEEP X-RAY VIEW OF THE BARE AGN ARK 120. II. EVIDENCE FOR Fe K EMISSION TRANSIENTS by Nardini, E., Porquet, D., Reeves, J. N., Braito, V., Lobban, A., Matt, G.

“…ABSTRACT We report on the results from a large observational campaign on the bare Seyfert galaxy Ark 120, jointly carried out in 2014 with XMM-Newton, Chandra,…”
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Modelling photometric reverberation mapping data for the next generation of big data surveys. Quasar accretion discs sizes with the LSST by Pozo Nuñez, F, Bruckmann, C, Deesamutara, S, Czerny, B, Panda, S, Lobban, A P, Pietrzyński, G, Polsterer, K L

“…ABSTRACT Photometric reverberation mapping can detect the radial extent of the accretion disc (AD) in Active Galactic Nuclei by measuring the time delays…”
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The flaring X-ray corona in the quasar PDS 456 by Reeves, J N, Braito, V, Porquet, D, Lobban, A P, Matzeu, G A, Nardini, E

“…ABSTRACT New Swift monitoring observations of the variable, radio-quiet quasar, PDS 456, are presented. A bright X-ray flare was captured in 2018 September,…”
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The luminosity-dependent contribution from the broad-line region to the wavelength-dependent lags in Mrk 110 by Vincentelli, F M, McHardy, I, Hernández Santisteban, J V, Cackett, E M, Gelbord, J, Horne, Keith, Miller, J A, Lobban, A

“…ABSTRACT We have measured the wavelength-dependent lags between the X-ray, ultraviolet, and optical bands in the high-accretion rate ($L/L_{\rm Edd}\approx…”
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X-ray variability analysis of a large series of XMM–Newton + NuSTAR observations of NGC 3227 by Lobban, A P, Turner, T J, Reeves, J N, Braito, V, Miller, L

“…ABSTRACT We present a series of X-ray variability results from a long XMM–Newton + NuSTAR campaign on the bright, variable AGN NGC 3227. We present an analysis…”
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Imprints of a high-velocity wind on the soft X-ray spectrum of PG1211+143 by Pounds, K. A., Lobban, A., Reeves, J. N., Vaughan, S., Costa, M.

“…An extended XMM–Newton observation of the luminous narrow-line Seyfert galaxy PG1211+143 in 2014 has revealed a more complex high-velocity wind, with…”
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Assessing black hole spin in deep Suzaku observations of Seyfert 1 AGN by Patrick, A. R., Reeves, J. N., Lobban, A. P., Porquet, D., Markowitz, A. G.

“…We present a broad-band analysis of deep Suzaku observations of nearby Seyfert 1 active galactic nuclei (AGN): Fairall 9, MCG−6-30-15, NGC 3516, 3783 and 4051…”
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Searching for ultra-fast outflows in AGN using variability spectra by Igo, Z, Parker, M L, Matzeu, G A, Alston, W, Alvarez Crespo, N, Fürst, F, Buisson, D J K, Lobban, A, Joyce, A M, Mallick, L, Schartel, N, Santos-Lleó, M

“…ABSTRACT We present a qualitative search for ultra-fast outflows (UFOs) in excess variance spectra of radio-quiet active galactic nuclei (AGNs). We analyse 42…”
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A deep X-ray view of the bare AGN Ark 120. III. X-ray timing analysis and multiwavelength variability by Lobban, A P, Porquet, D, Reeves, J N, Markowitz, A, Nardini, E, Grosso, N

“…Abstract We present the spectral/timing properties of the bare Seyfert galaxy Ark 120 through a deep ∼420 ks XMM–Newton campaign plus recent NuSTAR…”
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X-ray timing analysis of the quasar PG 1211+143 by Lobban, A. P., Vaughan, S., Pounds, K., Reeves, J. N.

“…We report on a timing analysis of a new ∼630 ks XMM–Newton observation of the quasar, PG 1211+143. We find a well-defined X-ray power spectrum with a…”
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X-ray time lags in PG 1211+143 by Lobban, A P, Vaughan, S, Pounds, K, Reeves, J N

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TESTING RELATIVISTIC REFLECTION AND RESOLVING OUTFLOWS IN PG 1211+143 WITH XMM-NEWTON AND NuSTAR by Lobban, A. P., Pounds, K., Vaughan, S., Reeves, J. N.

“…ABSTRACT We analyze the broad-band X-ray spectrum (0.3-50 keV) of the luminous Seyfert 1/quasar PG 1211+143-the archetypal source for high-velocity X-ray…”
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A DEEP X-RAY VIEW OF THE BARE AGN ARK 120. I. REVEALING THE SOFT X-RAY LINE EMISSION by Reeves, J. N., Porquet, D., Braito, V., Nardini, E., Lobban, A., Turner, T. J.

“…ABSTRACT The Seyfert 1 galaxy Ark 120 is a prototype example of the so-called class of bare nucleus active galactic nuclei (AGNs), whereby there is no known…”
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