Share This Author
A unifying view of the spectral energy distributions of blazars
- G. Fossati, L. Maraschi, Italy.
- Physics
- 9 April 1998
ABSTRA C T We collect data at well-sampled frequencies from the radio to the g-ray range for the following three complete samples of blazars: the Slew survey, the 1-Jy samples of BL Lacs and the 2-Jy…
Spectral Energy Distributions of Hard X-Ray Selected Active Galactic Nuclei in the XMM-Newton Medium Deep Survey
- M. Polletta, M. Tajer, L. Tresse
- Physics
- 1 July 2007
We present the SEDs of a hard X-ray selected sample containing 136 sources with F2-10 keV > 10-14 erg cm-2 s-1; 132 are AGNs. The sources are detected in a 1 deg2 area of the XMM-Newton Medium Deep…
The power of relativistic jets is larger than the luminosity of their accretion disks
- G. Ghisellini, F. Tavecchio, L. Maraschi, A. Celotti, T. Sbarrato
- PhysicsNature
- 19 November 2014
TLDR
A theoretical unifying scheme for gamma-ray bright blazars
- G. Ghisellini, A. Celotti, G. Fossati, L. Maraschi, A. Comastri
- Physics
- 30 July 1998
ABSTRA C T The phenomenology of g-ray bright blazars can be accounted for by a sequence in the source power and intensity of the diffuse radiation field surrounding the relativistic jet.…
Relativistic bulk motion in active galactic nuclei
- G. Ghisellini, P. Padovani, A. Celotti, L. Maraschi
- Physics
- 1 April 1993
We discuss the evidence for relativistic bulk motion of the emitting plasma in the nuclei of ∼100 radio sources, which include BL Lacertae objects, radio quasars, and radio galaxies, with published…
A two-phase model for the X-ray emission from Seyfert galaxies
- F. Haardt, L. Maraschi
- Physics
- 1 October 1991
A two-phase accretion disk model is considered. A substantial fraction, f, of the gravitational power is assumed to be dissipated via buoyancy and reconnection of magnetic fields in a hot tenuous…
X-Ray Spectra from Two-Phase Accretion Disks
- F. Haardt, L. Maraschi
- Physics
- 7 June 1993
A model for the X-ray emission from radio-quiet active galactic nuclei (AGNs) is considered. The X-rays are produced via inverse Compton (IC) emission in a hot corona embedding a colder accretion…
General physical properties of bright Fermi blazars
- G. Ghisellini, F. Tavecchio, Sissa
- Physics
- 4 September 2009
We studied all blazars of known redshift detected by the Fermi satellite during its first 3-month survey. For the majority of them, pointed Swift observations ensure a good multiwavelength coverage,…
FERMI LARGE AREA TELESCOPE OBSERVATIONS OF MARKARIAN 421: THE MISSING PIECE OF ITS SPECTRAL ENERGY DISTRIBUTION
- A. Abdo, M. Ackermann, A. Zook
- Physics
- 7 June 2011
We report on the γ-ray activity of the high-synchrotron-peaked BL Lacertae object Markarian 421 (Mrk 421) during the first 1.5 years of Fermi operation, from 2008 August 5 to 2010 March 12. We find…
Compton reflection and iron fluorescence in BeppoSAX observations of Seyfert type 1 galaxies
A sample of nine bright Seyfert 1 and NELG type galaxies, observed with BeppoSAX, is analyzed to assess on a truly broad band basis (0.1{200 keV) the issue of the spectral contributions of Compton…
...
...