Broad-band multifrequency variability of 3C 454.3 during a radio outburst

Details Broad-band multifrequency variability of 3C 454.3 during a radio outburst Broad-band multifrequency variability of 3C 454.3 during a radio outburst

Oct 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005xmm..prop...66r&link_type=abstract

XMM-Newton Proposal ID #04017001

Computer Science

Active Galactic Nuclei, Quasars, Bl-Lac Objects, X-Ray Background, 3C 454.3, Xmm-Newton Proposal 04017001

Scientific paper

In spring 2005 the blazar 3C 454.3 was observed exceptionally bright at optical and X-ray frequencies. In late August the source was bright in the mm band, and now the flux increase detected in the cm band is likely the start of a long-term radio outburst. Many low-energy data have been collected by the WEBT consortium, revealing strong spectral changes. We propose to observe this source with XMM-Newton in different phases of the radio outburst. Coordinated observations in the radio, NIR, and optical bands will be carried out by the WEBT, and gamma-ray data will be provided by the AGILE satellite. All these data will complement those acquired during the optical outburst and will allow to shed light on the variability mechanisms as well as on the jet structure and geometry.

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