629 citations · 2.5k across the 44 of their papers we have counts for
11 papers · 1 filter
Winds of Change: XRISM Resolve X-ray spectroscopy of NGC 4051
James Reeves, Shoji Ogawa, Tracey Jane Turner +7
NGC 4051 is a nearby (16.7 Mpc), Narrow Line Seyfert 1 galaxy (NLS1), which has a low black hole mass of M. It is also known for its rapid X-ray variability, on ti…
PACHA: Probing AGN Coronae with High-redshift AGN
Xiurui Zhao, Elias Kammoun, Marco Ajello +18
The X-ray emission of active galactic nuclei (AGN) is generally attributed to inverse Compton scattering of accretion-disk photons by hot electrons in a compact corona. In local AG…
The Advanced X-ray Imaging Satellite (AXIS) Community Science Book
Michael Koss, Nafisa Aftab, Steven W. Allen +395
The AXIS Community Science Book represents the collective effort of 592 scientists worldwide to define the transformative science enabled by the Advanced X-ray Imaging Satellite (A…
Chandra Discovery of a Candidate Hyper-Luminous X-ray Source in MCG+11-11-032
Adi Foord, Francesca Civano, Julia M. Comerford +9
We present a multi-wavelength analysis of MCG+11-11-032, a nearby AGN with the unique classification of both a binary and a dual AGN candidate. With new Chandra observations we aim…
Deep Chandra Observation of the Remarkable Ionization Cones of NGC 5252
Chen Wang, Junfeng Wang, Mauro Dadina +4
Seyfert galaxy NGC 5252 harbors enormously extended ionization cones, which have been previously detected in the optical and X-ray band, offering a unique opportunity to investigat…
Revisiting the complex nuclear region of NGC 6240 with Chandra
G. Fabbiano, A. Paggi, M. Karovska +3
We present a reanalysis of the cumulative ACIS S Chandra data set pointed at the double AGNs of the NGC 6240 merging galaxy, focusing on the hard energy bands containing the hard s…
Chandra Detection of the Circumnuclear Molecular Torus of the Compton Thick AGN in NGC 5643
G. Fabbiano, A. Paggi, A. Siemiginowska +1
We report a clumpy elongated feature found with deep Chandra ACIS high-resolution imaging of the Fe Kα line emission in the nuclear region of the Compton Thick Active Galactic Nucl…
Deep Chandra Observations of ESO 428-G014: III. High Resolution Spectral Imaging of the Ionization Cone and Radio Jet Region
G. Fabbiano, A. Paggi, M. Karovska +3
We have analyzed the deep Chandra observation (~155 ks) of the Compton Thick Active Galactic Nucleus (CT AGN) ESO 428-G014, to study in detail the morphology of the diffuse X-ray e…
X-ray spectral curvature of High Frequency Peaked BL Lacs: a predictor for the TeV flux
F. Massaro, A. Paggi, M. Elvis +1
Most of the extragalactic sources detected at TeV energies are BL Lac objects. They belong to the subclass of "high frequency peaked BL Lacs" (HBLs) exhibiting spectral energy dist…
"Comets" orbiting a black hole
R. Maiolino, G. Risaliti, M. Salvati +6
We use a long (300 ksec), continuous Suzaku X-ray observation of the active nucleus in NGC1365 to investigate the structure of the circumnuclear BLR clouds through their occultatio…
The XMM-Newton long look of NGC 1365: lack of a high/soft state in its ultraluminous X-ray sources
Roberto Soria, Guido Risaliti, Martin Elvis +3
Based on our long (~ 300 ks) 2007 XMM-Newton observation of the Seyfert galaxy NGC 1365, we report here on the spectral and timing behaviour of two ultraluminous X-ray sources, whi…