L. Maraschi

TL;DR: The possibility of explaining the continuous emission of active galactic nuclei in the frame of a model of spherical accretion onto a massive black hole is discussed in this article, where a crucial test of this hypothesis is the expected correlation between the ratio of the luminosity in lines to the total luminosity and the hardness of the continuous spectrum.

TL;DR: In this article, the authors trace the broadband emission of the flat-spectrum radio quasar QSO B1420+326 through different phases of the flaring activity, using dedicated optical spectroscopy results to estimate the accretion disc and the dust torus luminosity.

TL;DR: In this paper, the velocity-averaged cross-section of WIMP candidates from observations of dSphs has been derived for 9 annihilation channels and the results reach values of the order of $10^{-24} $cm$^3$/s at ${sim}1$ TeV.

TL;DR: In this article, the authors show that the spectrum from 2.8 to 100 micron is well fitted by a single power law with energy spectral index alpha = 0.4, intermediate between the flatter radio spectrum and the steeper simultaneous optical spectrum.

TL;DR: The first evidence that the X-ray and gamma-ray intensities are well correlated on time-scales of hours was provided by as mentioned in this paper, who observed a flare with hour-scale variability in X-rays and very high energy gamma-rays.