Present PositionAstrophysicist, Multiwavelength studies of Active Galactic Nuclei, Fermi Observatory
Brief BioJuly 2005 -- Present: Affiliate Research Professor, Department of Physics and Astronomy, George Mason University
October 2001 -- June 2005: Clare Boothe Luce Professor of Astrophysics
August 2004 -- June 2005: Associate Tenured Professor, George Mason University
October 2000 -- August 2004: Assistant Professor, George Mason University
July 1997 -- September 2000: Research Associate, Pennsylvania State University
June 1995 -- July 1997: NRC Research Fellow, NASA's GSFC
Educational BackgroundOctober 1994, PhD, SISSA/ISAS, Trieste, Italy. Thesis: The X-ray Properties of Blazars
October 1992, Master Phil. SISSA/ISAS, Trieste, Italy. Thesis: The EXOSAT Spectral Survey of Blazars
October 1989, Laurea degree, Univ. of Milan, Italy. Thesis: X-ray Observations the Magnetic Cataclysmic Variables E1405--451 (V834 Cen)
and E1013--477 (KO Vel)
Research InterestsRadio-loud AGNs (blazars and radio galaxies), from an X-ray, gamma-ray, and multiwavelength perspective;
physics and environment of extragalactic jets; unification models for AGN;
origin of the high-energy emission from jets;
low-luminosity accretion in AGNs and LINERs;
high-resolution X-ray spectroscopy of AGNs.
Current ProjectsI am currently working on High-energy observations and interpretation of Active Galactic Nuclei (jets and radio-loud sources).
Selected PublicationsOver 120 publications in refereed papers, 50 invited talks, 80 contributed papers. List available upon request.