Multiwavelength Observations of Markarian 421 in 2005 - 2006
Abstract
Since September 2005, the Whipple 10m Gamma-ray Telescope has been operated primarily as a blazar monitor. The five Northern Hemisphere blazars that have already been detected at the Whipple Observatory, Markarian 421, H1426+428, Markarian 501, 1ES 1959+650 and 1ES 2344+514, are monitored routinely each night that they are visible. We report on the Markarian 421 observations taken from November 2005 to June 2006 in the gamma-ray, X-ray, optical and radio bands. During this time, Markarian 421 was found to be variable at all wavelengths probed. Both the variability and the correlations among different energy regimes are studied in detail here. A tentative correlation, with large spread, was measured between the X-ray and gamma-ray bands, while no clear correlation was evident among the other energy bands. In addition to this, the well-sampled spectral energy distribution of Markarian 421 (1101+384) is presented for three different activity levels. The observations of the other blazar targets will be reported separately.
Keywords
Cite
@article{arxiv.0901.1225,
title = {Multiwavelength Observations of Markarian 421 in 2005 - 2006},
author = {D. Horan and V. A. Acciari and S. M. Bradbury and J. H. Buckley and V. Bugaev and K. L. Byrum and A. Cannon and O. Celik and A. Cesarini and Y. C. K. Chow and L. Ciupik and P. Cogan and A. D. Falcone and S. J. Fegan and J. P. Finley and P. Fortin and L. F. Fortson and D. Gall and G. H. Gillanders and J. Grube and G. Gyuk and D. Hanna and E. Hays and M. Kertzman and J. Kildea and A. Konopelko and H. Krawczynski and F. and M. J. Lang and K. Lee and P. Moriarty and T. Nagai and J. Niemiec and R. A. Ong and J. S. Perkins and M. Pohl and J. Quinn and P. T. Reynolds and H. J. Rose and G. H. Sembroski and A. W. Smith and D. Steele and S. P. Swordy and J. A. Toner and V. V. Vassiliev and S. P. Wakely and T. C. Weekes and R. J. White and D. A. Williams and M. D. Wood and B. Zitzer and H. D. Aller and M. F. Aller and M. Baker and D. Barnaby and M. T. Carini and P. Charlot and J. P. Dumm and N. E. Fields and T. Hovatta and B. Jordan and Y. A. Kovalev and Y. Y. Kovalev and H. A. Krimm and O. M. Kurtanidze and A. Lahteenmaki and J. F. Le Campion and J. Maune and T. Montaruli and A. C. Sadun and S. Smith and M. Tornikoski and M. Turunen and R. Walters},
journal= {arXiv preprint arXiv:0901.1225},
year = {2011}
}
Comments
58 pages, 22 Figures. Accepted for publication in ApJ