Modelling the thermal absorption and radio spectra of the binary pulsar B1259–63

  • O. KoralewskaEmail author
  • J. Kijak
  • W. Lewandowski
Original Article


We present the results of modelling of the radio spectrum evolution and dispersion measure variations of PSR B1259–63, a pulsar in a binary system with Be star LS 2883.

We base our model on a hypothesis that the observed variations of the spectrum are caused by thermal free-free absorption occurring in the pulsar surroundings. We reproduce the observed pulsar spectral shapes in order to examine the influence of the stellar wind of LS 2883 and the equatorial disc on the pulsar’s radiation.

The simulations of the pulsar’s radio emission and its consequent free-free absorption give us an insight into the impact of stellar wind and equatorial disc of LS 2883 has on the shapes of PSR B1259–63 radio spectra, providing an evidence for the connection between gigahertz-peaked spectra phenomenon and the close environment of the pulsar. Additionally, we supplement our model with an external absorbing medium, which results in a good agreement between simulated and observational data.


Pulsars: general, individual (B1259–63, LS 2883) Stars: winds, outflows ISM: general Radiation mechanism: non-thermal 



We thank the anonymous referee for the comments and suggestions that helped us to greatly improve the paper. This work was supported by the grant DEC-2013/09/B/ST9/02177 of the Polish National Science Centre.


  1. Afflerbach, A., Churchwell, E., Acord, J.M., Hofner, P., Kurtz, S., Depree, C.G.: Astrophys. J. 106(423), 8 (1996) Google Scholar
  2. Carciofi, A.C., Bjorkman, J.E.: Astrophys. J. 639, 1081 (2006) CrossRefADSGoogle Scholar
  3. Chernyakova, M., Neronov, A., Lutovinov, A., Rodriguez, J., Johnston, S.: Mon. Not. R. Astron. Soc. 367, 1201 (2006) CrossRefADSGoogle Scholar
  4. Chernyakova, M., Abdo, A.A., Neronov, A., McSwain, M.V., Moldón, J., Ribó, M., Paredes, J.M., Sushch, I., de Naurois, M., Schwanke, U., Uchiyama, Y., Wood, K., Johnston, S., Chaty, S., Coleiro, A., Malyshev, D., Babyk, I.: Mon. Not. R. Astron. Soc. 439, 432 (2014) CrossRefADSGoogle Scholar
  5. Chhetri, R., Ekers, R.D., Mahony, E.K., Jones, P.A., Massardi, M., Ricci, R., Sadler, E.M.: Mon. Not. R. Astron. Soc. 422, 2274 (2012) CrossRefADSGoogle Scholar
  6. Connors, T.W., Johnston, S., Manchester, R.N., McConnell, D.: Mon. Not. R. Astron. Soc. 336, 1201 (2002) CrossRefADSGoogle Scholar
  7. Dachs, J.: In: Sletteback, A., Snow, T.P. (eds.) Proc. Physics of Be Stars. IAU Colloq., vol. 92, p. 149. Cambridge University Press, Cambridge (1987) Google Scholar
  8. Dembska, M., Kijak, J., Koralewska, O., Lewandowski, W., Melikidze, G., Rożko, K.: Astrophys. Space Sci. 359, 3 (2015) CrossRefGoogle Scholar
  9. Franco, J., Kurtz, S., Hofner, P., et al.: Astrophys. J. Lett. 542, L143 (2000) CrossRefADSGoogle Scholar
  10. Hirayama, M., Cominsky, L.R., Kaspi, V.M., Nagase, F., Tavani, M., Kawai, N., Grove, J.E.: Astrophys. J. 521, 718 (1999) CrossRefADSGoogle Scholar
  11. Hughes, A., Bailes, M.: Astrophys. J. 522, 504 (1999) CrossRefADSGoogle Scholar
  12. Hummel, W., Vrancken, M.: Astron. Astrophys. 359, 1075 (2000) ADSGoogle Scholar
  13. Jankowski, F., van Straten, W., Keane, E.F., Bailes, M., Barr, E., Johnston, S., Kerr, M.: Mon. Not. R. Astron. Soc. 473, 4436 (2018). 1709.08864 CrossRefADSGoogle Scholar
  14. Johnston, S., Lyne, A.G., Manchester, R.N., Kniffen, D.A., D’Amico, N., Lim, J., Ashworth, M.: Mon. Not. R. Astron. Soc. 255, 401 (1992) CrossRefADSGoogle Scholar
  15. Johnston, S., Manchester, R.N., Lyne, A.G., Nicastro, L., Spyromilio, J.: Mon. Not. R. Astron. Soc. 268, 430 (1994) CrossRefADSGoogle Scholar
  16. Johnston, S., Manchester, R.N., Lyne, A.G., D’Amico, N., Bailes, M., Gaensler, B.M., Nicastro, L.: Mon. Not. R. Astron. Soc. 279, 1026 (1996) CrossRefADSGoogle Scholar
  17. Johnston, S., Manchester, R.N., McConnell, D., Campbell-Wilson, D.: Mon. Not. R. Astron. Soc. 302, 277 (1999) CrossRefADSGoogle Scholar
  18. Johnston, S., Wex, N., Nicastro, L., Manchester, R.N., Lyne, A.G.: Mon. Not. R. Astron. Soc. 326, 643 (2001) CrossRefADSGoogle Scholar
  19. Johnston, S., Ball, L., Wang, N., Manchester, R.N.: Mon. Not. R. Astron. Soc. 358, 1069 (2005) CrossRefADSGoogle Scholar
  20. Kijak, J., Dembska, M., Lewandowski, W., Melikidze, G., Sendyk, M.: Mon. Not. R. Astron. Soc. 418, L114 (2011a) CrossRefADSGoogle Scholar
  21. Kijak, J., Lewandowski, W., Maron, O., Gupta, Y., Jessner, A.: Astron. Astrophys. 531, A16 (2011b) CrossRefADSGoogle Scholar
  22. Kijak, J., Basu, R., Lewandowski, W., Rożko, K., Dembska, M.: Astrophys. J. 840, 13 (2017) CrossRefGoogle Scholar
  23. Koo, B.-C., Moon, D.-S., Lee, H.-G., Lee, J.-J., Matthews, K.: Astrophys. J. 657, 308–317 (2007) CrossRefADSGoogle Scholar
  24. Lewandowski, W., Kijak, J., Gupta, Y., Krzeszowski, K.: Astron. Astrophys. 534, A66 (2011) CrossRefADSGoogle Scholar
  25. Lewandowski, W., Rożko, K., Kijak, J., Melikidze, G.I.: Astrophys. J. 808, 18 (2015) CrossRefADSGoogle Scholar
  26. Lorimer, D.R., Yates, J.A., Lyne, A.G., Gould, D.M.: Mon. Not. R. Astron. Soc. 273, 411 (1995) CrossRefADSGoogle Scholar
  27. Maron, O., Kijak, J., Kramer, M., Wielebinski, R.: Astron. Astrophys. 147, 195 (2000) ADSGoogle Scholar
  28. Melatos, A., Johnston, S., Melrose, D.B.: Mon. Not. R. Astron. Soc. 275, 381 (1995) CrossRefADSGoogle Scholar
  29. Millar, C.E., Marlborough, J.M.: Astrophys. J. 526, 400 (1999) CrossRefADSGoogle Scholar
  30. Negueruela, I., Ribó, M., Herrero, A., Lorenzo, J., Khangul-yan, D., Aharonian, F.A.: Astrophys. J. 732, L11 (2011) CrossRefADSGoogle Scholar
  31. Okazaki, A.T., Nagataki, S., Naito, T., Kawachi, A., Hayasaki, K., Owocki, S.P., Takata, J.: Publ. Astron. Soc. Jpn. 63, 893 (2011) CrossRefADSGoogle Scholar
  32. Rohlfs, K., Wilson, T.L.: Tools of Radio Astronomy. Springer, Berlin (2004) CrossRefGoogle Scholar
  33. Shannon, R.M., Johnston, S., Manchester, R.N.: Mon. Not. R. Astron. Soc. 437, 3255 (2014) CrossRefADSGoogle Scholar
  34. Sieber, W.: Astron. Astrophys. 28, 237 (1973) ADSGoogle Scholar
  35. Wang, N., Johnston, S., Manchester, R.N., Not Roy, M.: Astron. Soc. 351, 599 (2004) CrossRefADSGoogle Scholar
  36. Waters, L.B.M.F.: Astron. Astrophys. 162, 121 (1986) ADSGoogle Scholar
  37. Waters, L.B.F.M., Marlborough, J.M.: Astron. Astrophys. 256, 195 (1992) ADSGoogle Scholar
  38. Wex, N., Johnston, S., Manchester, R.N., Lyne, A.G., Stappers, B.W., Bailes, M.: Mon. Not. R. Astron. Soc. 298, 997 (1998) CrossRefADSGoogle Scholar
  39. Whiteoak, J.B.Z., Green, A.J.: Astron. Astrophys. 118, 329 (1996) ADSGoogle Scholar
  40. Wood, D.O.S., Churchwell, E.: Astrophys. J. Suppl. Ser. 69, 831 (1989) CrossRefADSGoogle Scholar

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© Springer Science+Business Media B.V., part of Springer Nature 2018

Authors and Affiliations

  1. 1.Janusz Gil Institute of AstronomyUniversity of Zielona GóraZielona GóraPoland

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