902 citations · 2.3k across the 23 of their papers we have counts for
24 papers
Hard X-ray Sources in Fermi UFOs
Alessandro Paggi, Ioannis Liodakis, John Antoniadis +7
Identification and/or association of unidentified -ray sources with lower-energy counterparts represents a key challenge in modern astronomy, due to the relatively large positio…
A search for spectral hysteresis and energy-dependent time lags from X-ray and TeV gamma-ray observations of Mrk 421
A. U. Abeysekara, S. Archambault, A. Archer +220
Blazars are variable emitters across all wavelengths over a wide range of timescales, from months down to minutes. It is therefore essential to observe blazars simultaneously at di…
Observation of Markarian 421 in TeV gamma rays over a 14-year time span
V. A. Acciari, T. Arlen, T. Aune +73
The variability of the blazar Markarian 421 in TeV gamma rays over a 14-year time period has been explored with the Whipple 10 m telescope. It is shown that the dynamic range of it…
On the driver of relativistic effects strength in Seyfert galaxies
M. Guainazzi, S. Bianchi, I. de la Calle Perez +2
Spectroscopy of X-ray emission lines emitted in accretion discs around supermassive black holes is one of the most powerful probes of the accretion flow physics and geometry, while…
Multi-wavelength Observations of the Flaring Gamma-ray Blazar 3C 66A in 2008 October
LAT collaboration, A. A. Abdo et al., the VERITAS collaboration +4
The BL Lacertae object 3C 66A was detected in a flaring state by the Fermi Large Area Telescope (LAT) and VERITAS in 2008 October. In addition to these gamma-ray observations, F-GA…
FERO: Finding Extreme Relativistic Objects. I. Statistics of Relativistic Fe Kalpha lines in Radio-Quiet Type 1 AGN
I. de la Calle Pérez, A. L. Longinotti, M. Guainazzi +10
Accretion models predict that fluorescence lines broadened by relativistic effects should arise from reflection of X-ray emission onto the inner region of the accretion disc surrou…