Advertisement

Intensity and polarization of radiation reflected from accretion disc

  • N. A. Silant’ev
  • G. A. Alekseeva
  • V. V. Novikov
Original Article

Abstract

We consider the reflection of non-polarized radiation from the point-like sources above the accretion discs both the optically thick and optically thin. We investigate the dependence of the polarization of reflected radiation on the aperture angle of incident radiation. The aperture angle is determined by the radius of accretion disc and the height of the source above the disc. For optically thick accretion discs we show that, if the aperture angle is smaller 70 grad, then the wave electric field oscillations of reflected radiation are parallel to the accretion disc plane. For aperture angle greater than 70 grad the electric field oscillations are parallel to the plane “normal to accretion disc—the line of sight”. The latter also holds for reflection from the optically thin accretion disc independent of the aperture angle value.

Keywords

Radiative transfer Scattering Polarization Accretion discs 

Notes

Acknowledgements

This research was supported by the Program of Presidium of Russian Academy of Sciences N 28.

We are very grateful to a referee for a number of useful remarks and advices.

References

  1. Blandford, R.D.: Lecture Notes of Saas-Fee Courses, Geneva Observatory, XII. Springer, Heidelberg (1990), 280 pp. Google Scholar
  2. Blandford, R.D.: AGN jets. In: Collin, S., Combes, F., Shlosman, I. (eds.) Active Galactic Nuclei: From Central Engine to Host Galaxy. ASP Conference Series, vol. 290, p. 267 (2003) Google Scholar
  3. Blandford, R.D., Konigle, A.: Astrophys. J. 232, 34 (1979) ADSCrossRefGoogle Scholar
  4. Chandrasekhar, S.: Radiative Transfer. Dover, New York (1960) zbMATHGoogle Scholar
  5. Cherepashchuk, A.M.: Publ. Obs. Astron. Belgr. 80, 3 (2006) ADSGoogle Scholar
  6. Fabian, A.C., Zoghbi, A., Ross, R.R., et al.: Nature 459, 540 (2009a) ADSCrossRefGoogle Scholar
  7. Fabian, A.C., Zoghbi, A., Ross, R.R., et al.: arXiv:0905.4383v1 (2009b)
  8. Fabrika, S.: Astrophys. Space Phys. Rev. 12, 1–100 (2004) ADSGoogle Scholar
  9. Goodrich, R.W., Miller, J.S.: Astrophys. J. 434, 82 (1994) ADSCrossRefGoogle Scholar
  10. Grinin, V.P., Domke, H.: Astrophysics 7, 211 (1971) Google Scholar
  11. Hawley, J.F., Beckwith, K., Krolik, J.H.: Astrophys. Space Sci. 311, 117 (2007) ADSCrossRefGoogle Scholar
  12. Hubeny, I., Hubeny, V.: Astrophys. J. 484, L37 (1997) ADSCrossRefGoogle Scholar
  13. Impey, C.D., Lawrence, C.R., Tapia, S.: Astrophys. J. 375, 46 (1991) ADSCrossRefGoogle Scholar
  14. Ivanov, V.V.: Astron. Astrophys. 303, 609 (1995) ADSGoogle Scholar
  15. Krivosheyev, Yu.M., Bisnovatyi-Kogan, G.S., Cherepashchuk, A.M., Postnov, K.A.: Mon. Not. R. Astron. Soc. 394, 1674 (2009) ADSCrossRefGoogle Scholar
  16. Marin, F.: Mon. Not. R. Astron. Soc. 441, 551 (2014) ADSCrossRefGoogle Scholar
  17. Novikov, I.D., Thorne, K.S.: In: de Witt, C., de Witt, B. (eds.) Black Hole Astrophysics. Gordon & Breach, New York (1973) Google Scholar
  18. Pariev, V.I., Colgate, S.A.: Astrophys. J. 658, 114 (2007) ADSCrossRefGoogle Scholar
  19. Riffert, H., Harold, H.: Astrophys. J. 450, 508 (1995) ADSCrossRefGoogle Scholar
  20. Shakura, N.I., Sunyaev, R.A.: Astron. Astrophys. 24, 337 (1973) ADSGoogle Scholar
  21. Silant’ev, N.A., Gnedin, Yu.N.: Astron. Astrophys. 481, 217 (2008) ADSCrossRefGoogle Scholar
  22. Silant’ev, N.A., Alekseeva, G.A., Novikov, V.V.: Astrophys. Space Sci. 357, 53 (2015) ADSCrossRefGoogle Scholar
  23. Silant’ev, N.A., Alekseeva, G.A., Novikov, V.V.: Astrophys. Space Sci. 362, 151 (2017) ADSCrossRefGoogle Scholar
  24. Smirnov, V.I.: The Course of Higher Mathematics, Vol. 4. Integral Equations and Partial Differential Equations. Pergamon Press, New York (1964) Google Scholar
  25. Smith, J.E., Young, S., Robinson, A., Corbett, E.A., Giannuzzo, M.E., Axon, D.J., Hough, J.H.: Mon. Not. R. Astron. Soc. 335, 773 (2002) ADSCrossRefGoogle Scholar
  26. Smith, J.E., Robinson, A., Alexander, D.M., Young, S., Axon, D.J., Corbett, E.A.: Mon. Not. R. Astron. Soc. 350, 140 (2004) ADSCrossRefGoogle Scholar
  27. Sobolev, V.V.: A Treatise on Radiative Transfer. Van Nostrand, Princeton (1963) Google Scholar
  28. Sobolev, V.V.: Course in theoretical astrophysics. NASA Technical Translation F-531, Washington (1969) Google Scholar
  29. Urpin, V.A.: Astrophys. Space Sci. 90, 79 (1983) ADSCrossRefGoogle Scholar
  30. Zoghbi, A., Fabian, A.C.: Mon. Not. R. Astron. Soc. 418, 2542 (2011) ADSCrossRefGoogle Scholar

Copyright information

© Springer Nature B.V. 2018

Authors and Affiliations

  • N. A. Silant’ev
    • 1
  • G. A. Alekseeva
    • 1
  • V. V. Novikov
    • 1
  1. 1.Central Astronomical Observatory at Pulkovo of Russian Academy of SciencesSaint-PetersburgRussia

Personalised recommendations