THE IMAGES OF EXTRAGALACTIC RADIO SOURCES IN THE DIFFUSION MODEL

Автор(и)

  • F. M. Kolesnikov Department of Radio Phisics, Kharkov State University, 4 Independency square, Kharkov 310066 Ukraine, Ukraine
  • V. M. Kontorovich Department of Radio Phisics, Kharkov State University, 4 Independency square, Kharkov 310066 Ukraine; Institute of Radio Astronomy NANU, 4 Krasnoznamennaya St., Kharkov 310002 Ukraine, Ukraine

DOI:

https://doi.org/10.18524/1810-4215.1999.12.93028

Ключові слова:

extragalactic radio sources, hot spots, lobes, diffusion model, spectral indexes, asymmetry.

Анотація

The distribution of the spectral index and radio lobes' isophots were derived by numerical methods in the diffusion model of extragalactic radio sources. The kinetic equation for the distribution function of relativistic electrons is considered. Regions of electron injection, associated with hot spots, are considered as moving. Velocities of hot spots and the diffusion velocity of electrons determined the correlation of transverse and longitudinal lobes' sizes. Observed changes of lobes at various frequencies accord with the diffusion model. The reabsorption in the lobes leads to the asymmetry of them, depending on source's rotation relatively to the line of sight.

Посилання

Begelman M.C., Blandford R.D., Rees M.J.: 1984, Rev.Mod.Phys., 165, 395.

Berezinskiy V.S., Bulanov S.V., Ginzburg V.L., et al.: 1984, Astrophysics of cosmic rays. -Moscow, Nauka.

Carilli C.L., Barthel P.D.: 1996, As. Ap. Rev., 7, 1.

Gestrin S.G., Kontorovich V.M., Kochanov A.E.: 1987, Kinem. i Fiz. Neb. Tel., 3, N 4, 57.

Ginzburg V.L.: 1987, Theoretical Physics and Astrophysics.-Moscow, Nauka.

Ginzburg V.L., Syrovatskii S.I.: 1964, Origin of cosmic rays. -Pergamon Press.

Kaiser C.R., Alexander P.: 1999, in: Observational Cosmology: The development of galaxy systems, eds. G.Giuricin, M.Mezetti, P.Salucci, ASP Conf. Ser., 176, 377.

Leahy J.P., Bridle A.H., Strom R.G.: 1996, IAU, 175, 157.

Valtaoja E.: 1982, As. Ap., 111, 213.

Zheleznyakov V.V.: 1997, Radiation in astrophysical plasma. -Moscow.: Yanus-K.

##submission.downloads##

Опубліковано

2017-03-16

Номер

Том 12 (1999)

Розділ

Статті

Ліцензія

Авторське право (c) 2017 Odessa Astronomical Publications

Creative Commons License

Ця робота ліцензується відповідно до Creative Commons Attribution-NonCommercial 4.0 International License.

Відповідно Закону України про авторське право і суміжні права N 3792-XII від 23 грудня 1993 року