Update on the Multi-Frequency Monitoring of Blazars with Medicina and Noto. Issue Volume 14:Issue S342(2018) (May 2018)

• Record Type: Journal Article
• Authors: Righini, Simona; Cassaro, Pietro; Bach, Uwe; Giroletti, Marcello; Buemi, Carla; Leto, Paolo; Orienti, Monica; Orlati, Andrea; Raiteri, Claudia M.; Trigilio, Corrado; Umana, Grazia; Villata, Massimo
• Editors: Asada, Keiichi; de Gouveia Dal Pino, Elisabete; Giroletti, Marcello; Nagai, Hiroshi; Nemmen, Rodrigo
• Is Part Of: Proceedings of the International Astronomical Union. Volume 14:Issue S342(2018)
• Page Start: 234
• Page End: 236
• Publication Date: 2018-05
• Subjects: radio continuum: galaxies, -- galaxies: active; Astronomy -- Congresses; Astronomy -- Periodicals; 520
• DOI: 10.1017/S1743921318007962
• Languages: English
• ISSNs: 1743-9213

Abstract

Abstract: The Medicina and Noto radiotelescopes have been employed for over 14 years to monitor the flux density variations of a vast sample of blazars at different radio frequencies. Radio data are essential components of blazar spectral energy distribution (SED, spanning from radio waves to gamma rays), whose trend with luminosity and shape changes provide decisive information on the physics of extra-galactic jets and, eventually, on the mechanism extracting energy from the central black hole in radio-loud AGN. Observations presently carried out at 5, 8 and 24 GHz have taken advantage of the continually evolving control system installed at the antennas. A new, batch-wise analysis tool was also produced, in order to easily handle and reduce the datasets acquired in monthly sessions. We here describe the latest developments and achievements.