453 citations · 3.3k across the 50 of their papers we have counts for
51 papers
The ASTRI Mini-Array of Cherenkov Telescopes at the Observatorio del Teide
Scuderi S., Giuliani A., Pareschi G. +95
The ASTRI Mini-Array (MA) is an INAF project to build and operate a facility to study astronomical sources emitting at very high-energy in the TeV spectral band. The ASTRI MA consi…
ASTRI Mini-Array Core Science at the Observatorio del Teide
S. Vercellone, C. Bigongiari, A. Burtovoi +84
The ASTRI (Astrofisica con Specchi a Tecnologia Replicante Italiana) Project led by the Italian National Institute for Astrophysics (INAF) is developing and will deploy at the Obse…
Extragalactic Observatory Science with the ASTRI Mini-Array at the Observatorio del Teide
F. G. Saturni, C. H. E. Arcaro, B. Balmaverde +47
The ASTRI Mini-Array is a next-generation system of nine imaging atmospheric Cherenkov telescopes that is going to be built at the Observatorio del Teide site. After a first phase,…
Dramatic changes in the observed velocity of the accretion disk wind in MCG-03-58-007 are revealed by XMM-Newton and NuSTAR
V. Braito, J. N. Reeves, G. Matzeu +6
Past X-ray observations of the nearby Seyfert 2 MCG-03-58-007 revealed the presence of a powerful and highly variable disk wind, where two possible phases outflowing with $v_{\rm o…
Direct observation of an extended X-ray jet at =6.1
L. Ighina, A. Moretti, F. Tavecchio +6
We report on the direct observation of an extended X-ray jet in the =6.1 radio-loud Active Galactic Nucleus PSO J030947.49+271757.31 from a deep Chandra X-ray observation (128 k…
AGN with discordant optical and X-ray classification are not a physical family: Diverse origin in two AGN
I. Ordovás-Pascual, S. Mateos, F. J. Carrera +7
Approximately 3-17 percent of Active Galactic Nuclei (AGN) without detected rest-frame UV/optical broad emission lines (type-2 AGN) do not show absorption in X-rays. The physical o…
Water masers in Compton-thick AGN I. Detailed study of the new water megamaser in IRAS15480-0344
P. Castangia, A. Tarchi, A. Caccianiga +2
A relationship between the water maser detection rate and large nuclear column densities in AGN has often been cited in the literature. Indeed, detailed studies of luminous water m…
The structure of the X-ray absorber in Mrk 915 revealed by Swift
P. Severgnini, L. Ballo, V. Braito +5
In this paper we present the results obtained with a monitoring programme (23 days long) performed with Swift-XRT on the local Seyfert galaxy Mrk 915. The light-curve analysis show…
AGN feedback in action: a new powerful wind in 1SXPSJ050819.8+172149?
L. Ballo, P. Severgnini, V. Braito +4
Galaxy merging is widely accepted to be a key driving factor in galaxy formation and evolution, while the feedback from AGN is thought to regulate the BH-bulge coevolution and the…
The XMM-Newton serendipitous survey. VII. The third XMM-Newton serendipitous source catalogue
S. R. Rosen, N. A. Webb, M. G. Watson +37
Thanks to the large collecting area (3 x ~1500 cm at 1.5 keV) and wide field of view (30' across in full field mode) of the X-ray cameras on board the European Space Agency X-r…
Exploring the Active Galactic Nuclei population with extreme X-ray to optical flux ratios (Fx/Fo >50)
R. Della Ceca, F. J. Carrera, A. Caccianiga +8
The cosmic history of the growth of supermassive black holes in galactic centers parallels that of star-formation in the Universe. However, an important fraction of this growth occ…
A Focused, Hard X-ray Look at Arp 299 with NuSTAR
A. Ptak, A. Hornschemeier, A. Zezas +19
We report on simultaneous observations of the local starburst system Arp 299 with NuSTAR and Chandra, which provides the first resolved images of this galaxy up to energies of ~ 45…
The XMM-Newton Bright Survey sample of absorbed quasars: X-ray and accretion properties
L. Ballo, P. Severgnini, R. Della Ceca +5
Although absorbed quasars are extremely important for our understanding of the energetics of the Universe, the main physical parameters of their central engines are still poorly kn…
SDSSJ143244.91+301435.3: a link between radio-loud narrow-line Seyfert 1 galaxies and compact steep-spectrum radio sources?
A. Caccianiga, S. Antón, L. Ballo +12
We present SDSSJ143244.91+301435.3, a new case of radio-loud narrow line Seyfert 1 (RL NLS1) with a relatively high radio power (P1.4GHz=2.1x10^25 W Hz^-1) and large radioloudness…
X-ray observation of ULAS J1120+0641, the most distant quasar at z=7.08
A. Moretti, L. Ballo, V. Braito +6
We aim at probing the emission mechanism of the accreting super massive black holes in the high redshift Universe. We study the X-ray spectrum of ULAS1120+0641, the highest redshif…
The variable ionized absorber in the Seyfert 2 Mrk 348
E. Marchese, V. Braito, J. N Reeves +6
We present the results of the analysis of the X-ray spectrum of the Seyfert 2 Mrk 348, observed by Suzaku and XMM-Newton. The overall spectrum of Mrk 348 can be described by a prim…
The role of relativistic jets in the heaviest and most active supermassive black holes at high redshift
G. Ghisellini, F. Haardt, R. Della Ceca +2
In powerful radio-quiet active galactic nuclei (AGN), black holes heavier than one billion solar masses form at a redshift ~1.5-2. Supermassive black holes in jetted radio-loud AGN…
Studying the relationship between X-ray emission and accretion in AGNs using the XMM-Newton Bright Serendipitous Survey
R. Fanali, A. Caccianiga, P. Severgnini +5
We study the link between the X-ray emission in radio-quiet AGNs and the accretion rate on the central Supermassive Black Hole using a statistically well-defined and representative…
The XMM-Newton Wide Angle Survey (XWAS)
P. Esquej, M. Page, F. J. Carrera +16
This programme is aimed at obtaining one of the largest X-ray selected samples of identified active galactic nuclei to date in order to characterise such a population at intermedia…
Black-hole masses of type 1 AGN in the XMM-Newton bright serendipitous survey
A. Caccianiga, R. Fanali, P. Severgnini +3
We derive masses of the central super-massive black hole (SMBH) and accretion rates for 154 type1 AGN belonging to a well-defined X-ray-selected sample, the XMM-Newton Serendipitou…
A new technique to efficiently select Compton-thick AGN
P. Severgnini, A. Caccianiga, R. Della Ceca
We present a new efficient diagnostic method, based on mid-infrared and X-ray data, to select local (z<0.1) Compton-thick (CT) AGN with the aim of estimating their surface and spac…
NGC454: unveiling a new "changing look" AGN
Elena Marchese, Valentina Braito, Roberto Della Ceca +2
We present a detailed analysis of the X-ray spectrum of the Seyfert 2 galaxy NGC454E, belonging to the interacting system NGC454. Observations performed with Suzaku, XMM-Newton and…
The optical-UV spectral energy distribution of the unabsorbed AGN population in the XMM-Newton Bright Serendipitous Survey
E. Marchese, R. Della Ceca, A. Caccianiga +3
Active galactic nuclei (AGN) emit radiation over a wide range of wavelengths, with a peak of emission in the far-UV region of the electromagnetic spectrum, a spectral region that i…
The X-ray spectral properties of the AGN population in the XMM-Newton bright serendipitous survey
A. Corral, R. Della Ceca, A. Caccianiga +5
We present here a detailed X-ray spectral analysis of the AGN belonging to the XMM-Newton bright survey (XBS) that comprises more than 300 AGN up to redshift ~ 2.4. We performed an…