Search Results - "Nardini, E."

Resolving the Soft X-Ray Ultrafast Outflow in PDS 456 by Reeves, J. N., Braito, V., Chartas, G., Hamann, F., Laha, S., Nardini, E.

“…Past X-ray observations of the nearby luminous quasar PDS 456 (at z = 0.184) have revealed a wide-angle accretion disk wind with an outflow velocity of…”
Get full text

Suzaku observations of 'bare' active galactic nuclei by Walton, D. J., Nardini, E., Fabian, A. C., Gallo, L. C., Reis, R. C.

“…We present an X-ray spectral analysis of a large sample of 25 'bare' active galactic nuclei (AGN), sources with little or no complicating intrinsic absorption,…”
Get full text

Short-term X-ray spectral variability of the quasar PDS 456 observed in a low-flux state by Matzeu, G. A., Reeves, J. N., Nardini, E., Braito, V., Costa, M. T., Tombesi, F., Gofford, J.

“…We present a detailed analysis of a recent, 2013 Suzaku campaign on the nearby (z = 0.184) luminous (L bol ∼ 1047 erg s−1) quasar PDS 456. This consisted of…”
Get full text

Black hole feedback in the luminous quasar PDS 456 by Nardini, E., Reeves, J. N., Gofford, J., Harrison, F. A., Risaliti, G., Braito, V., Costa, M. T., Matzeu, G. A., Walton, D. J., Behar, E., Boggs, S. E., Christensen, F. E., Craig, W. W., Hailey, C. J., Matt, G., Miller, J. M., O'Brien, P. T., Stern, D., Turner, T. J., Ward, M. J.

“…The evolution of galaxies is connected to the growth of supermassive black holes in their centers. During the quasar phase, a huge luminosity is released as…”
Get full text

Dissecting the Extended X-Ray Emission in the Merging Pair NGC 6240: Photoionization and Winds by Paggi, A., Fabbiano, G., Nardini, E., Karovska, M., Elvis, M., Wang, J.

“…Abstract We present a detailed spectral and imaging analysis of the central 15″ radius (∼7.5 kpc) region of the merger galaxy NGC 6240 that makes use of all…”
Get full text

The role of nuclear activity as the power source of ultraluminous infrared galaxies by Nardini, E., Risaliti, G., Watabe, Y., Salvati, M., Sani, E.

“…We present the results of a 5–8 μm spectral analysis performed on the largest sample of local ultraluminous infrared galaxies (ULIRGs) selected so far,…”
Get full text

The effects of X-ray absorption variability in NGC 4395 by Nardini, E., Risaliti, G.

“…We present a new X-ray analysis of the dwarf Seyfert galaxy NGC 4395, based on two archival XMM-Newton and Suzaku observations. This source is well known for a…”
Get full text

Revisiting the Complex Nuclear Region of NGC 6240 with Chandra by Fabbiano, G., Paggi, A., Karovska, M., Elvis, M., Nardini, E., Wang, Junfeng

“…Abstract We present a reanalysis of the cumulative ACIS-S Chandra data set pointed at the double active galactic nuclei (AGNs) of the NGC 6240 merging galaxy,…”
Get full text

Towards an informed quest for accretion disc winds in quasars: the intriguing case of Ton 28 by Nardini, E, Lusso, E, Bisogni, S

“…ABSTRACT We report on the detection of a blueshifted Fe K absorption feature in two consecutive XMM–Newton  observations of the luminous blue quasar Ton 28, at…”
Get full text

A rapidly spinning supermassive black hole at the centre of NGC 1365 by Risaliti, G., Harrison, F. A., Madsen, K. K., Walton, D. J., Boggs, S. E., Christensen, F. E., Craig, W. W., Grefenstette, B. W., Hailey, C. J., Nardini, E., Stern, Daniel, Zhang, W. W.

“…Two models (relativistic disk reflection and absorption-dominated) can explain the pattern of X-ray emission from the galaxy NGC 1365, but here reflection…”
Get full text

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,…”
Get full text

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,…”
Get full text

Tracking the iron K α line and the ultra fast outflow in NGC 2992 at different accretion states by Marinucci, A, Bianchi, S, Braito, V, Matt, G, Nardini, E, Reeves, J

“…ABSTRACT The Seyfert 2 galaxy NGC 2992 has been monitored eight times by XMM–Newton in 2010 and then observed again in 2013, while in 2015 it was…”
Get full text

Compton-thick active galactic nuclei inside local ultraluminous infrared galaxies by Nardini, E., Risaliti, G.

“…We present an X-ray analysis of the most luminous obscured active galactic nuclei (AGN) inside local ultraluminous infrared galaxies (ULIRGs). Our sample…”
Get full text

The lively accretion disc in NGC 2992 – I. Transient iron K emission lines in the high-flux state by Marinucci, A, Bianchi, S, Braito, V, De Marco, B, Matt, G, Middei, R, Nardini, E, Reeves, J N

“…ABSTRACT We report on one of the brightest flux levels of the Seyfert 2 galaxy NGC 2992 ever observed in X-rays, on 2019 May. The source has been monitored…”
Get full text

Long XMM observation of the narrow-line Seyfert 1 galaxy IRAS 13224−3809: rapid variability, high spin and a soft lag by Fabian, A. C., Kara, E., Walton, D. J., Wilkins, D. R., Ross, R. R., Lozanov, K., Uttley, P., Gallo, L. C., Zoghbi, A., Miniutti, G., Boller, T., Brandt, W. N., Cackett, E. M., Chiang, C.-Y., Dwelly, T., Malzac, J., Miller, J. M., Nardini, E., Ponti, G., Reis, R. C., Reynolds, C. S., Steiner, J. F., Tanaka, Y., Young, A. J.

“…The narrow-line Seyfert 1 galaxy IRAS 13224−3809 has been observed with XMM-Newton for 500 ks. The source is rapidly variable on time-scales down to a few 100…”
Get full text

A low-flux state in IRAS 00521−7054 seen with NuSTAR and XMM–Newton : relativistic reflection and an ultrafast outflow by Walton, D J, Nardini, E, Gallo, L C, Reynolds, M T, Ricci, C, Dauser, T, Fabian, A C, García, J A, Harrison, F A, Risaliti, G, Stern, D

Get full text

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…”
Get full text

Unveiling the population of dual and lensed active galactic nuclei at sub-arcsec separations by Mannucci, F., Pancino, E., Belfiore, F., Cicone, C., Ciurlo, A., Cresci, G., Lusso, E., Marasco, A., Marconi, A., Nardini, E., Pinna, E., Severgnini, P., Saracco, P., Tozzi, G., Yeh, S.

“…All cosmological models of structure formation predict the existence of a widespread population of dual supermassive black holes in-spiralling inside their…”
Get full text

X-ray absorption by broad-line region clouds in Mrk 766 by Risaliti, G., Nardini, E., Salvati, M., Elvis, M., Fabbiano,  G., Maiolino, R., Pietrini, P., Torricelli-Ciamponi, G.

“…We present a new analysis of a 9-d long XMM-Newton monitoring of the narrow-line Seyfert 1 galaxy Mrk 766. We show that the strong changes in the spectral…”
Get full text