Abstract
Jets can be probed in their innermost regions (d≲0.1 pc) through the study of the relativistically boosted emission of blazars. On the other extreme of spatial scales, the study of structure and dynamics of extragalactic relativistic jets received renewed impulse after the discovery, made by Chandra, of bright X-ray emission from regions at distances larger than hundreds of kpc from the central engine. At both scales it is thus possible to infer some of the basic parameters of the flow (speed, density, magnetic field intensity, power). After a brief review of the available observational evidence, I discuss how the comparison between the physical quantities independently derived at the two scales can be used to shed light on the global dynamics of the jet, from the innermost regions to the hundreds of kpc scale.
Similar content being viewed by others
References
Aharonian, F.A.: Mon. Not. Roy. Astron. Soc. 332, 215 (2002)
Aharonian, F.A.: New Astron. 5, 377 (2000)
Atoyan, A., Dermer, C.D.: Astrophys. J. 613, 151 (2004)
Begelman, M.C., Sikora, M.: Astrophys. J. 322, 650 (1987)
Bicknell, G.V.: Astrophys. J. 422, 542 (1994)
Blandford, R.D.: Lighthouses of the universe. In: Gilfanov, M., et al. (eds.) MPA/ESO Proc., p. 381 (2002)
Blandford, R.D., Konigl, A.: Astrophys. J. 232, 34 (1979)
Blandford, R.D., Payne, D.G.: Mon. Not. Roy. Astron. Soc. 199, 883 (1982)
Blandford, R.D., Rees, M.J.: Mon. Not. Roy. Astron. Soc. 169, 395 (1974)
Böttcher, M., Dermer, C.D.: Astrophys. J. 564, 86 (2002)
Cavaliere, A., D’Elia, V.: Astrophys. J. 571, 226 (2002)
Celotti, A., Fabian, A.C.: Mon. Not. Roy. Astron. Soc. 264, 228 (1993)
Celotti, A., Padovani, P., Ghisellini, G.: Mon. Not. Roy. Astron. Soc. 286, 415 (1997)
Celotti, A., Ghisellini, G., Chiaberge, M.: Mon. Not. Roy. Astron. Soc. 321, L1 (2001)
Celotti, A., Ghisellini, G., Fabian, A.C.: Mon. Not. Roy. Astron. Soc. 1498 (2007)
Chiaberge, M., Celotti, A., Capetti, A., Ghisellini, G.: Astron. Astrophys. 358, 104 (2000)
De Young, D.S.: The Physics of Extragalactic Radio Sources. University of Chicago Press, Chicago (2002)
Dermer, C.D., Schlickeiser, R.: Astrophys. J. 416, 458 (1993)
Edwards, P.G., Piner, B.G.: Astrophys. J. Lett. 579, L67 (2002)
Fabian, A.C.: Mon. Not. Roy. Astron. Soc. 308, L39 (1999)
Foschini, L., et al.: Astrophys. J. Lett. 657, L81 (2007)
Fossati, G., Maraschi, L., Celotti, A., Comastri, A., Ghisellini, G.: Mon. Not. Roy. Astron. Soc. 299, 433 (1998)
Georganopoulos, M., Kazanas, D.: Astrophys. J. Lett. 594, L27 (2003)
Georganopoulos, M., Kazanas, D.: Astrophys. J. Lett. 604, L81 (2004)
Ghirlanda, G., Ghisellini, G., Lazzati, D.: Astrophys. J. 616, 331 (2004)
Ghisellini, G.: Astron. Nachrichten 320, 232 (1999)
Ghisellini, G., Celotti, A.: Mon. Not. Roy. Astron. Soc. 327, 739 (2001)
Ghisellini, G., Madau, P.: Mon. Not. Roy. Astron. Soc. 280, 67 (1996)
Ghisellini, G., Celotti, A., Fossati, G., Maraschi, L., Comastri, A.: Mon. Not. Roy. Astron. Soc. 301, 451 (1998)
Ghisellini, G., Tavecchio, F., Chiaberge, M.: Astron. Astrophys. 432, 401 (2005)
Giroletti, M., et al.: Astrophys. J. 600, 127 (2004)
Harris, D.E., Krawczynski, H.: Annu. Rev. Astron. Astrophys. 44, 463 (2006)
Jester, S., Harris, D.E., Marshall, H.L., Meisenheimer, K.: Astrophys. J. 648, 900 (2006)
Jorstad, S.G., Marscher, A.P.: Astrophys. J. 614, 615 (2004)
Jorstad, S.G., Marscher, A.P.: Astron. Nachrichten 327, 227 (2006)
Junor, W., Biretta, J.A., Livio, M.: Nature 401, 891 (1999)
Kataoka, J., Stawarz, Ł.: Astrophys. J. 622, 797 (2005)
Katarzyński, K., Ghisellini, G.: Astron. Astrophys. 463, 529 (2007)
Kellermann, K.I., et al.: Astrophys. J. 609, 539 (2004)
Kino, M., Takahara, F., Kusunose, M.: Astrophys. J. 564, 97 (2002)
Konopelko, A., Mastichiadis, A., Kirk, J., de Jager, O.C., Stecker, F.W.: Astrophys. J. 597, 851 (2003)
Krawczynski, H., Coppi, P.S., Aharonian, F.: Mon. Not. Roy. Astron. Soc. 336, 721 (2002)
Kubo, H., Takahashi, T., Madejski, G., Tashiro, M., Makino, F., Inoue, S., Takahara, F.: Astrophys. J. 504, 693 (1998)
Lyutikov, M.: New Astron. Rev. 47, 513 (2003)
Mannheim, K.: Astron. Astrophys. 269, 67 (1993)
Maraschi, L., Tavecchio, F.: Astrophys. J. 593, 667 (2003)
Maraschi, L., Ghisellini, G., Celotti, A.: Astrophys. J. Lett. 397, L5 (1992)
Maraschi, L., et al.: Astrophys. J. Lett. 526, L81 (1999)
Mücke, A., Protheroe, R.J., Engel, R., Rachen, J.P., Stanev, T.: Astropart. Phys. 18, 593 (2003)
Piner, B.G., Edwards, P.G.: Astrophys. J. 600, 115 (2004)
Rawlings, S., Saunders, R.: Nature 349, 138 (1991)
Sambruna, R.M., Maraschi, L., Tavecchio, F., Urry, C.M., Cheung, C.C., Chartas, G., Scarpa, R., Gambill, J.K.: Astrophys. J. 571, 206 (2002)
Sambruna, R.M., Gambill, J.K., Maraschi, L., Tavecchio, F., Cerutti, R., Cheung, C.C., Urry, C.M., Chartas, G.: Astrophys. J. 608, 698 (2004)
Sambruna, R.M., Gliozzi, M., Tavecchio, F., Maraschi, L., Foschini, L.: Astrophys. J. 652, 146 (2006a)
Sambruna, R.M., et al.: Astrophys. J. 646, 23 (2006b)
Sambruna, R.M., Gliozzi, M., Donato, D., Maraschi, L., Tavecchio, F., Cheung, C.C., Urry, C.M., Wardle, J.F.C.: Astrophys. J. 641, 717 (2006c)
Schwartz, D.A., et al.: Astrophys. J. Lett. 540, L69 (2000)
Schwartz, D.A., et al.: Astrophys. J. 640, 592 (2006)
Sikora, M., Madejski, G.: Am. Inst. Phys. Conf. Ser. 558, 275 (2001)
Sikora, M., Begelman, M.C., Rees, M.J.: Astrophys. J. 421, 153 (1994)
Sikora, M., Begelman, M.C., Madejski, G.M., Lasota, J.-P.: Astrophys. J. 625, 72 (2005)
Spada, M., Ghisellini, G., Lazzati, D., Celotti, A.: Mon. Not. Roy. Astron. Soc. 325, 1559 (2001)
Stawarz, Ł., Sikora, M., Ostrowski, M., Begelman, M.C.: Astrophys. J. 608, 95 (2004)
Stawarz, Ł., Siemiginowska, A., Ostrowski, M., Sikora, M.: Astrophys. J. 626, 120 (2005)
Tavecchio, F., et al.: Astrophys. J. 543, 535 (2000a)
Tavecchio, F., Maraschi, L., Sambruna, R.M., Urry, C.M.: Astrophys. J. Lett. 544, L23 (2000b)
Tavecchio, F., et al.: Astrophys. J. 554, 725 (2001)
Tavecchio, F., Maraschi, L., Sambruna, R.M., Urry, C.M., Cheung, C.C., Gambill, J.K., Scarpa, R.: Astrophys. J. 614, 64 (2004)
Tavecchio, F., Maraschi, L., Sambruna, R.M., Gliozzi, M., Cheung, C.C., Wardle, J.F.C., Urry, C.M.: Astrophys. J. 641, 732 (2006)
Tavecchio, F., Maraschi, L., Wolter, A., Cheung, C.C., Sambruna, R.M., Urry, C.M.: Astrophys. J. 662, 900 (2007)
Uchiyama, Y., et al.: Astrophys. J. 648, 910 (2006)
Wardle, J.F.C., Aaron, S.E.: Mon. Not. Roy. Astron. Soc. 286, 425 (1997)
Worrall, D.M., Birkinshaw, M., Hardcastle, M.J.: Mon. Not. Roy. Astron. Soc. 326, L7 (2001)
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Tavecchio, F. Extragalactic jets on subpc and large scales. Astrophys Space Sci 311, 247–255 (2007). https://doi.org/10.1007/s10509-007-9546-0
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10509-007-9546-0