THE CYCLOTRON EMISSION OF ANISOTROPIC ELECTRONS IN THE X-RAY PULSARS

Автор(и)

  • A. N. Baushev Space Research Institute, Profsoyuznaya, 84/32, Moscow 117810, Russia, Russian Federation
  • G. S. Bisnovatyi-Kogan Space Research Institute, Profsoyuznaya, 84/32, Moscow 117810, Russia, Russian Federation

DOI:

https://doi.org/10.18524/1810-4215.1999.12.93006

Ключові слова:

X-ray pulsars, cyclotron emission.

Анотація

The spectrum of cyclotron radiation is calculated for anisotropically distributed relativistic electrons with a nonrelativistic velocity scattering across the magnetic field. It is shown that if such electrons are responsible for a formation of the "cyclotron" line in the spectrum of Her X-1, then the value of its magnetic field (3 - 6) x 1010 Gs following from this interpretation is in a good agreement with some other observations and theoretical estimations. Observations of a time dependence of the energy of this "cyclotron" line in the spectra of several X-ray pulsars is explained by a variability of the average longitude energy of the electrons, decreasing with increasing of the luminosity due to radiational braking of the accretion flow.

Посилання

Basko M.M., Sunyaev R.A.: 1976, M.N.R.A.S., 175, 395.

Bisnovatyi-Kogan G.S.: 1973, Astron. Zhurn., 50, 902.

Bisnovatyi-Kogan G.S.: 1974, Astron. Zhurn., 51, 443.

Bisnovatyi-Kogan G.S., Fridman A.M.: 1969, Astron. Zhurn., 46, 721.

Bisnovatyi-Kogan G.S., Komberg B.V.: 1973, Astron. Tsirk., No. 784, 721.

Bisnovatyi-Kogan G.S., Komberg B.V.: 1974, Astron. Zhurn., 51, 373.

Ginzburg V.L.: 1975, Theoretical physics and astrophysics, "Nauka", Moscow.

Gnedin Yu.N., Sunyaev R.A.: 1973, Astron. Astrophys., 25, 233.

Gruber D.E., et al.: 1980, Ap.J.(Letters), 240, L27.

McCray R.A., Shull J.M., Boynton P.E., et al.: 1982, Ap.J., 262, 301.

Mihara T., Makishima K., Ohashi T. et al.: 1990, Nature, 346, 250.

Mihara T., Makishima K., Nagase F.: 1997, Proceedings of an international Workshop "All-sky X-ray Observations in the Next Decade", 135.

Sheepmaker T., Jansen F.A., Deerenberg A.J.M., et al.: 1981, Space Sci. Rev., 30, 325.

Sheer E.K., Kopaeva I.F., Averintsev M.B., et.al.: 1992, Astron. Zhurn., 69, 82.

Sunyaev R.A., Titarchuk L.G.: 1980, Astron. Astrophys., 86, 121.

Trumper J., Pietsch W., Reppin C., et al.: 1978, Ap.J., 219, 105.

Tueller J., Cline T.L., Teegarden B.J. et al.: 1984, Ap.J., 279, 177-183.

Ubertini P., Bazzano A., LaPadula C.D., et al.: 1980, Proc. 17th Int. Cosmic-Ray Conf., Paris, 1, 99.

Voges W., Pietsch W., Reppin C. et al.: 1982, Ap.J., 263, 803.

Zel'dovich Ya.B., Shakura N.I.: 1969, Astron. Zhurn., 46, 225.

##submission.downloads##

Опубліковано

2017-03-16

Номер

Розділ

Статті