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The picture of relativistic jet from Fermi-LAT and multi-band observations of blazar 3C 279

Published online by Cambridge University Press:  24 February 2011

Masaaki Hayashida  and
Greg Madejski
Masaaki Hayashida
Affiliation:
Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, Stanford University, CA, 94025, USA email: mahaya@slac.stanford.edu
Greg Madejski
Affiliation:
Kavli Institute for Particle Astrophysics and Cosmology, SLAC National Accelerator Laboratory, Stanford University, CA, 94025, USA email: mahaya@slac.stanford.edu
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Abstract

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Strong and variable radiation detected over all accessible energy bands in blazar arises from a relativistic, Doppler-boosted jet pointing close to our line of sight. Flat Spectrum Radio Quasar 3C 279 was one of the brightest γ-ray blazars in the sky at the time of the discovery with EGRET. Since the successful launch of the Fermi Gamma-ray Space telescope in 2008, we have organized extensive multi-band observational campaign of 3C 279 from radio to γ-ray bands, also including optical polarimetric observations. The uninterrupted monitoring in the γ-ray band by Fermi-LAT together with the multi-band data provide us with new insights of the relativistic jet of blazar. Here, we present the results of the first-year multi-band campaign of 3C 279 including the discovery of a γ-ray flare event associated with a dramatic change of the optical polarization - as well as a discovery of an “orphan” X-ray flare, unassociated with prominent outbursts in other bands.

Keywords

galaxies: jets – quasars: individual (3C 279) – gamma rays: observations – X-rays: galaxies – polarization
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 6 , Symposium S275: Jets at all Scales , September 2010 , pp. 155 - 159
Copyright
Copyright © International Astronomical Union 2011

References

Abdo, A. A., et al. Nature, 463, 919–923 (2010).Google Scholar
Albert, J., et al. Science, 320, 1752–1754 (2008).CrossRefGoogle Scholar
Atwood, W. B., et al. Astrophys. J., 697, 1071–1102 (2009).Google Scholar
Dermer, C., Schlickheiser, R., & Mastichiadis, A.Astron. Astrophys., 256, L27–L30 (1992).Google Scholar
Hartman, R. C., et al. Astrophys. J. (Lett.), 385, L1–L4 (1992).CrossRefGoogle Scholar
Homan, D. C., et al. Astrophys. J., 580, 742–748 (2002).CrossRefGoogle Scholar
Jorstad, S. G., et al. Astron. J., 130, 1418–1465 (2005).CrossRefGoogle Scholar
Kniffen, D. A., et al. Astrophys. J., 411, 133–136 (1994).CrossRefGoogle Scholar
Konigl, A. & Choudhuri, A. R.Astrophys. J. 289, 188–192 (1985).CrossRefGoogle Scholar
Larionov, V. M., et al. Astron. Astrophys. 492, 389–400 (2008).CrossRefGoogle Scholar
Lyutikov, M., Pariev, V. I., & Blandford, R.Astrophys. J. 597, 998–1009 (2003)Google Scholar
Marscher, A. P., et al. Nature, 452, 966–969 (2008).Google Scholar
Nilsson, K., et al. Astron. Astrophys., 505, 601–604 (2009)Google Scholar
Watanabe, M., et al. Pub. Astron. Soc. Pacif., 117, 870–884 (2005).CrossRefGoogle Scholar
Wehrle, A. E., et al. Astrophys. J., 497, 178–187 (1998).CrossRefGoogle Scholar
Woo, J.-H. & Urry, C. M.Astrophys. J., 579, 530–544 (2002).Google Scholar