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Blazars: Clues to Jet Physics

Published online by Cambridge University Press:  25 May 2016

Rita M. Sambruna
Rita M. Sambruna*
Affiliation:
Pennsylvania State University, 525 Davey Lab, University Park, PA 16802

Abstract

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Being dominated by non-thermal emission from aligned relativistic jets, blazars allow us to elucidate the physics of extragalactic jets, and, ultimately, how energy is extracted from the central black hole. Crucial information about jet structure is provided by the spectral energy distributions from radio to γ-rays, their trends with luminosity, and correlated multifrequency variability. Since blazar jets have broad implications for all radio-loud (and possibly radio-quiet) AGNs, we also need to understand their circumnuclear structure, especially the details of the physical and dynamical conditions of the highly ionized gas on sub-pc scales, which could be directly related to jet formation and radiative power. Eventually, the bulk of information provided by blazars will help us clarify the origin of the radio-loud/radio-quiet AGN dichotomy, one of the most outstanding open issues of extragalactic astrophysics.

Type
II. Observational Properties of AGN and Related Objects
Information
Symposium - International Astronomical Union , Volume 194: Activity in Galaxies and Related Phenomena , 1999 , pp. 113 - 122
Copyright
Copyright © Astronomical Society of the Pacific 1999 

References

Aharonian, F. et al. 1997, A&A, 327, L5 Google Scholar
Bicknell, G. V., 1995, ApJS, 101, 29 CrossRefGoogle Scholar
Blandford, R.D. & Payne, D.G. 1982, MNRAS, 199, 883 Google Scholar
Blandford, R.D. & Rees, M.J. 1978, in Pittsburgh Conference on BL Lac Objects, Wolfe, A.M., Univ. Pittsburgh Press, 1978, p.328 Google Scholar
Bloom, S. D. et al. 1997, ApJ, 490, L145 Google Scholar
Böttcher, M. & Dermer, C.D. 1998, ApJ, 501, L51 CrossRefGoogle Scholar
Canizares, C.R. & Kruper, J. 1984, ApJ, 278, L99 Google Scholar
Catanese, M. et al. 1997, ApJ, 487, L143 Google Scholar
Chadwick, P.M. et al. 1998, ApJ, in press, astro-ph/9810209 Google Scholar
Chiaberge, M. & Ghisellini, G. 1998, MNRAS, subm., astro-ph/9810263 Google Scholar
De Young, D. S. 1993, ApJ, 405, L13 Google Scholar
Dermer, C.D. & Chiang, J. 1998, astro-ph/9810222 Google Scholar
Dermer, C.D. & Schlickeiser, R. 1993, ApJ, 416, 458 Google Scholar
Edelson, R. et al. 1995, ApJ, 438, 120 Google Scholar
Falcke, H. et al. 1996, ApJ, 473, L13 Google Scholar
Fossati, G. et al. 1998, MNRAS, 299, 433 Google Scholar
Georganopoulos, M. & Marscher, A. 1998, ApJ, 506, 621 Google Scholar
Ghisellini, G. et al. 1998, MNRAS, in press, astro-ph/9807317 Google Scholar
Ghisellini, G. & Madau, P. 1996, MNRAS, 280, 67 CrossRefGoogle Scholar
Ghisellini, G. & Maraschi, M. 1996, in Blazar Continuum Google Scholar
Variability, H. Miller, R., Webb, J.R., & Noble, J.C., ASP Conf. Series, Vol. 110, 436 Google Scholar
Giommi, P., Ansari, S.G., & Micol, A. 1995, A&ASupp., 109, 267 Google Scholar
Hartman, R.C. 1998, in BL Lac Phenomenon, Eds. Sillanpaa, A. & Takalo, L. O.. PASP Conf. Series, in press Google Scholar
Heidt, J. 1998, in BL Lac Phenomenon, Eds. Sillanpaa, A. & Takalo, L. O., PASP Conf. Series, in press Google Scholar
Kartje, J.F. et al. 1997, ApJ, 474, 630 Google Scholar
Kirk, J.G., Rieger, F.M., & Mastichiadis, A. 1998, A&A, 333, 452 Google Scholar
Königl, A. et al. 1995, ApJ, 446, 598 Google Scholar
Königl, A. & Kartje, J.F. 1994, ApJ, 434, 446 Google Scholar
Krolik, J.H. et al. 1985, ApJ, 295, 104 Google Scholar
Kubo, H. et al. 1998, ApJ, 504, 693 CrossRefGoogle Scholar
Laurent-Muehleisen, S.A. et al. 1998, ApJS, 118, 127 Google Scholar
Madejski, G. et al. 1991, ApJ, 370, 198 Google Scholar
Mannheim, K. & Biermann, P.L. 1992, A&A, 253, L21 Google Scholar
Maraschi, L. et al. 1994, ApJ, 435, L91 CrossRefGoogle Scholar
Maraschi, L., Ghisellini, G., & Celotti, A. 1992, ApJ, 397, L5 Google Scholar
Mirabel, I.F. & Rodriguez, L.F. 1998, Nature, 392, 673 CrossRefGoogle Scholar
Perlman, E.S. et al. 1998, AJ, 115, 1253 CrossRefGoogle Scholar
Pian, E. et al. 1998, ApJ, 492, L17 Google Scholar
Protheroe, R.J. & Bierman, P.L. 1997, APh, 6, 293 Google Scholar
Romanova, M.M. & Lovelace, R.V.E. 1997, ApJ, 475, 97 Google Scholar
Salomon, H.M. & Stecker, F.W. 1994, ApJ, 430, L21 Google Scholar
Sambruna, R.M. et al. 1999, ApJ, in press, astro-ph/9810319 Google Scholar
Sambruna, R.M. & Mushotzky, R.F. 1998, ApJ, 502, 630 Google Scholar
Sambruna, R.M. 1997, ApJ, 474, 639 CrossRefGoogle Scholar
Sambruna, R.M. et al. 1997, ApJ, 483, 774 CrossRefGoogle Scholar
Sambruna, R.M., Maraschi, L., & Urry, C.M. 1996, ApJ, 463, 444 Google Scholar
Scarpa, R. & Falomo, R. 1997, A&A, 325, 109 Google Scholar
Sikora, M., Begelman, M.C., & Rees, M.J. 1994, ApJ, 421, 153 Google Scholar
Takahashi, T. et al. 1996, ApJ, 470, L89 Google Scholar
Urry, C.M. et al. 1999, ApJ, in press, astro-ph/9809030 Google Scholar
Urry, C.M. et al. 1997, ApJ, 486, 799 Google Scholar
Urry, C.M. & Padovani, P. 1995, PASP, 107, 803 Google Scholar
Vermeulen, R.C. et al. 1995, ApJ, 452, L5 Google Scholar
Wardle, J.F.C. et al. 1998, Nature, 395, 457 CrossRefGoogle Scholar
Wehrle, A. E. et al. 1998, ApJ, 497, 178 Google Scholar