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.…