2.3k citations
- National Institute for AstrophysicsIT287 papers
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- Centre National de la Recherche ScientifiqueFR240 papers
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33 papers · 1 filter
A variability study of the AGILE first catalog of γ-ray sources on 2.3 years of AGILE pointed observations
F. Verrecchia, C. Pittori, A. Bulgarelli +4
AGILE pointed observations performed from July 9, 2007 to October 30, 2009 cover a very large time interval, with a γ-ray dataset useful to perform studies of medium to high bright…
A simplified view of blazars: clearing the fog around long-standing selection effects
P. Giommi, P. Padovani, G. Polenta +3
We propose a scenario where blazars are classified as flat-spectrum radio quasars (FSRQs), BL Lacs, low synchrotron, or high synchrotron peaked objects according to a varying mix o…
Simultaneous Planck, Swift, and Fermi observations of X-ray and gamma-ray selected blazars
P. Giommi, G. Polenta, A. Lahteenmaki +92
We present simultaneous Planck, Swift, Fermi, and ground-based data for 105 blazars belonging to three samples with flux limits in the soft X-ray, hard X-ray, and gamma-ray bands.…
Planck Early Results XXVI: Detection with Planck and confirmation by XMM-Newton of PLCK G266.6-27.3, an exceptionally X-ray luminous and massive galaxy cluster at z~1
Planck Collaboration, N. Aghanim, M. Arnaud +189
We present first results on PLCK G266.6-27.3, a galaxy cluster candidate detected at a signal-to-noise ratio of 5 in the Planck All Sky survey. An XMM-Newton validation observation…
WMAP 7 year constraints on CPT violation from large angle CMB anisotropies
A. Gruppuso, P. Natoli, N. Mandolesi +3
We constrain the rotation angle of the linear polarization of CMB photons using the large angular scale (up to ) signal in WMAP 7 year data. At these scales, the…
Using CMB data to constrain non-isotropic Planck-scale modifications to Electrodynamics
Giulia Gubitosi, Marina Migliaccio, Luca Pagano +4
We develop a method to constrain non-isotropic features of Cosmic Microwave Background (CMB) polarization, of a type expected to arise in some models describing quantum gravity eff…