431 citations · 3.1k across the 62 of their papers we have counts for
4 papers · 2 filters
Evidence for a Significant Blazar Contamination in CMB Anisotropy Maps
P. Giommi, S. Colafrancesco
The analysis of the recent WMAP source catalog shows that the vast majority of bright foreground extragalactic sources detected in CMB maps are Blazars. In this paper we calculate…
Chandra Discovery of an X-ray jet and Extended X-ray Structure in z=0.63 quasar, B2 0738+313
Aneta Siemiginowska, Carlo Stanghellini, Gianfranco Brunetti +8
We have made a 30 ksec Chandra observation of the redshift z=0.63 GPS quasar B2 0738+313. We detected X-ray emission from the core and have discovered a 200 kpc (projected on the s…
Cooling flows or warming rays?
Sergio Colafrancesco, Arnon Dar, Alvaro De Rujula
The radiative cooling time of the X-ray-emitting plasma near the center in many clusters of galaxies is shorter than the age of the cluster, but neither the expected large drop in…
Triple Experiment Spectrum of the Sunyaev-Zeldovich Effect in the Coma Cluster: H_0
E. S. Battistelli, M. De Petris, L. Lamagna +11
The Sunyaev-Zeldovich (SZ) effect was previously measured in the Coma cluster by the Owens Valley Radio Observatory and Millimeter and IR Testa Grigia Observatory experiments and r…