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Independent estimates of energies of steep-spectrum radio sources

Published online by Cambridge University Press:  25 July 2014

Alla Miroshnichenko
Alla Miroshnichenko*
Affiliation:
Institute of Radio Astronomy of NAS of UkraineUA-61002, Kharkov, Ukraine email: [email protected]
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Abstract

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We examine properties of galaxies and quasars with steep low-frequency spectra from the UTR-2 catalogue. The number of the objects have the non-thermal X-ray emission due to the inverse Compton scattering of radio photons of the microwave background by relativistic electrons. So, it is possible to estimate the magnetic field strength and the ratio of energies of the magnetic field and relativistic particles, independently. As we have received the determined values of magnetic field strength are near to one order less than those at the well-known energy equipartition condition. We conclude from the obtained energy ratio that the energy of relativistic particles prevails over the energy of magnetic field in the galaxies and quasars with steep radio spectra.

Keywords

Steep radio spectrummagnetic field strengthrelativistic particlesenergy
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 9 , Symposium S304: Multiwavelength AGN Surveys and Studies , October 2013 , pp. 96 - 99
Copyright
Copyright © International Astronomical Union 2014 

References

Braude, S. Y.a., Megn, A. V., Rashkovsky, S. L., et al. 1978, Astrophys. Space Sci., 54, 37Google Scholar
Braude, S. Y.a., Megn, A. V., Sokolov, K. P., et al. 1979, Astrophys. Space Sci., 64, 73CrossRefGoogle Scholar
Braude, S. Y.a., Miroshnichenko, A. P., Sokolov, K. P., & Sharykin, N. K. 1981a, Astrophys. Space Sci., 74, 409CrossRefGoogle Scholar
Braude, S. Y.a., Miroshnichenko, A. P., Sokolov, K. P., & Sharykin, N. K. 1981b, Astrophys. Space Sci., 76, 279CrossRefGoogle Scholar
Braude, S. Y.a., Miroshnichenko, A. P., Rashkovsky, S. L., et al. 2003, Kin. Phys. Celest. Bodies, 19, 291Google Scholar
Croston, J., Hardcastle, M., Harris, D., et al. 2005, ApJ, 626, 733Google Scholar
Hardcastle, M., Croston, J., & Kraft, R. 2007, ApJ, 669, 893Google Scholar
Harris, D. & Grindley, J. 1979, MNRAS, 188, 25CrossRefGoogle Scholar
Isobe, N., Makishima, K., Iyomoto, N., et al. 2002, ApJ(Letters), 580, L111Google Scholar
Kardashev, N. S. 1962, Sv. Astron., 6, 317Google Scholar
Lang, K. 1974, Astrophysical Formulae (Berlin:Springer-Verlag)CrossRefGoogle Scholar
Mikhailova, M. S., Bannikova, E. Y. U., & Kontorovich, V. M. 2010, Astron.Reports, 54, 481Google Scholar
Mingo, B., Hardcastle, M., Croston, J., et al. 2012, ApJ, 758, 95Google Scholar
Miroshnichenko, A. P. 2012, Radio Physics and Radio Astronomy, 3, 215CrossRefGoogle Scholar