Multifrequency variability of OJ 287 during the expected outburst

Details Multifrequency variability of OJ 287 during the expected outburst Multifrequency variability of OJ 287 during the expected outburst

Oct 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005xmm..prop...41c&link_type=abstract

XMM-Newton Proposal ID #04010601

Physics

Active Galactic Nuclei, Quasars, Bl-Lac Objects, X-Ray Background, Oj 287, Xmm-Newton Proposal 04010601

Scientific paper

The BL Lac object OJ 287 (z=0.306) is a highly variable blazar, which has shown optical intermittent emission with outstanding pseudo-periodic outbursts every 11-12 years. Long-term and densely-sampled light curves have been collected in the radio and optical bands since 1891. We aim at studying the spectral and temporal behaviour of OJ 287, on both long and short time scales, in the radio, mm, optical, UV and X-ray band, during the next major outburst, expected to occur in fall 2006, possibly solving some of the puzzling question about this AGN. This is a continuation of our previous XMM observations (AO4) proposed to detect the X-ray behaviour in high state. Ground-based multifrequency campaigns are already ongoing (WEBT and ENIGMA) joint with VLBI sessions.

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