Skip to main content
Log in

Evidence for the free precession of a neutron star

  • Published:
Astrophysics and Space Science Aims and scope Submit manuscript

Abstract

Although the free precession of a neutron star has been put forward as the cause of long-period variations in some X-ray pulsar emissions, no corroborating evidence has been found. The recent observation of a pulsar in Cygnus X-3, a system with a well measured long-period variation, provides an opportunity to examine the possibility of free precession. The properties of the pulsar which have been observed so far are consistent with the neutron star having a small free precession amplitude.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  • Alpar, M. A., Anderson, P. W., Pines, D., and Shaham, J.: 1984,Astrophys. J. 276, 325.

    Google Scholar 

  • Alpar, M. A., Anderson, P. W., Pines, D., and Shaham, J.: 1985a,Astrophys. J. 278, 791.

    Google Scholar 

  • Alpar, M. A., Nandkumar, R., and Pines, D.: 1985b,Astrophys. J. 288, 191.

    Google Scholar 

  • Basko, M. M., Sunyaev, R. A., and Titarchuk, L. G.: 1974,Astron. Astrophys. 31, 249.

    Google Scholar 

  • Bethe, H. A. and Johnson, M. B.: 1974,Nucl. Phys. A230, 1.

    Google Scholar 

  • Bignami, G. P., Maraschi, L.,and Treves, A.: 1977,Astron. Astrophys. 55, 155.

    Google Scholar 

  • Bonnet-Bidaud, J. M. and Van der Klis, M.:1981,Astron. Astrophys. 101, 299.

    Google Scholar 

  • Brecher, K.: 1972,Nature,239, 325.

    Google Scholar 

  • Brecher, K. and Chanmungan, G.: 1985,Nature 313, 767.

    Google Scholar 

  • Chadwick, P. M.,Dipper, N. A., Dowthwaite, J. C., Gibson, A. I., Harrison, A. I., Kirkman, I. W., Lotts, A. P., Macrae, J. H., McComb, T. J. L., Orford, K. J., Turver, K. E., and Walmsley, M.: 1985,Nature 318, 642.

    Google Scholar 

  • Cheng, K. S., Ho, C.,and Ruderman, M.: 1986a,Astrophys. J. 300, 500.

    Google Scholar 

  • Cheng, K. S., Ho, C., and Ruderman, M.: 1986b,Astrophys. J. 300, 522.

    Google Scholar 

  • Dowthwaite, J. C., Gibson, A. I., Harrison, A. B., Kirkman, I. W., Lotts, A. P., Macrae, J. H., Orford, K. J., Turver, K. E., and Walmsley, M.: 1983,Astron. Astrophys. 126, 1.

    Google Scholar 

  • Dowthwaite, J. C., Kirkman, I. W., Orford, K. J., Turner, K. E., and Walmsley, M.: 1985,Proc. 19th Int. Conf. Cosmic Rays. 11–23 August, 1985, Vol. 1, p. 79.

    Google Scholar 

  • Eichler, D. and Vestrand, W. T.: 1984,Nature 307, 613.

    Google Scholar 

  • Friedman, J. L., Ipser, J. R., and Parker, L.: 1986,Astrophys. J. 304, 115.

    Google Scholar 

  • Geldzahler, B. J., Johnston, K. J., Spencer, J. H., Klepczynski, W. J., Josties, F. J., Angerhofer, P. E., Florkowski, D. R., McCarthy, D. D., Matsakis, D. N., and Hjellming, R. M.: 1983,Astrophys. J. 273, L65.

    Google Scholar 

  • Ghosh, P., Elsner, R. F., Weisskopf, M. C., and Sutherland, P. G.: 1981,Astrophys. J. 251, 230.

    Google Scholar 

  • Goldreich, J.: 1970,Astrophys. J. 160, L11.

    Google Scholar 

  • Hillas, A. M.: 1984,Nature,312, 50.

    Google Scholar 

  • Holt, S. S., GBoldt, E. A., Serlemitsos, P. J., Kaluzienski, L. J., Pravdo, S. H., Peacock, A., Elvis, M., Watson, M. G., and Pounds, K. A.: 1976,Nature 260, 592.

    Google Scholar 

  • Joss, P. C. and Rappaport, S. A.: 1984,Ann. Rev. Astron. Astrophys. 22, 537.

    Google Scholar 

  • Lamb, D. Q., Lamb, F. K., Pines, D., and Shaham, J.: 1975,Astrophys. J. 198, L21.

    Google Scholar 

  • Lipunov, V. M., Semenov, E. S., and Shakura, N. I.: 1981,Soviet Astron. 25, 439.

    Google Scholar 

  • Milgrom, M. and Pines, D.: 1978,Astrophys. J. 220, 272.

    Google Scholar 

  • Molteni, D., Rapisarda, M., Robba, N. R., and Scarsi, L.: 1980,Astron. Astrophys. 87, 88.

    Google Scholar 

  • Neshpor, Yu. I., Zyskin, Yu. L., Vladimirskii, B. M., Gerasimov, S. A., Stepanyan, A. A., and Fomin, V. P.: 1981,Bull. Crimea Astrophys. Obs. 61, 51.

    Google Scholar 

  • Pandharipande, V. R., Pines, D., and Smith, R. A.: 1976,Astrophys. J. 208, 550.

    Google Scholar 

  • Pines, D. and Alpar, M. A.: 1985,Nature 316, 27.

    Google Scholar 

  • Priedhorsky, W.: 1985,Space Sci. Rev. 40, 305.

    Google Scholar 

  • Shaham, J.: 1977,Astrophys. J. 214, 251.

    Google Scholar 

  • Stecker, F. W., Harding, A. K., and Barnard, J. J.: 1985,Nature,316, 418.

    Google Scholar 

  • Stepanian, A. A.: 1982,Astrophys. Space Sci. 84, 347.

    Google Scholar 

  • Suto, Y., and Iso, K.-I.: 1985,Astrophys. Space Sci 115, 243.

    Google Scholar 

  • Treves, A.: 1973,Nature Phys. Sci. 242, 121.

    Google Scholar 

  • Trumper, J., Pietsch, W., Reppin, C., Voges, W., Staubert, R., and Kendziana, E.: 1978,Astrophys. J. 219, L105.

    Google Scholar 

  • Trumper, J., Kahabka, P., Ogelman, H., Pietsch, W., and Voges, W.: 1985,Space Sci. Rev. 40, 239.

    Google Scholar 

  • van der Klis, M. and Bonnet-Bidaud, J. M.: 1981,Astron. Astrophys. 95, L5.

    Google Scholar 

  • Vestrand, W. T.: 1983,Astrophys. J. 271, 303.

    Google Scholar 

  • Vestrand, W. T. and Eichler, D.: 1982,Astrophys. J. 261, 251.

    Google Scholar 

  • Vladimirskii, B. M.: 1979,Izv. Krymsk. Astrofiz. Obs. 60, 84.

    Google Scholar 

  • Vladimirskii, B. M., Gal'per, A. M., Luchkov, B. I., and Stepanyan, A. A.: 1985,Soviet Phys. Ups. 28, 153.

    Google Scholar 

  • Wheaton, W. A., Doty, J. P., Primini, F. A., Cooke, B. A., Dobson, C. A., Goldman, A., Hecht, M., Hoffman, J. A., Howe, S. K., Sheepmaker, A., Tsiang, E. Y., Lewin, W. H. G., Matteson, J. L., Gruber, D. E., Baity, W. A., Rothschild, R., Knight, F. K., Nolan, J. L., and Peterson, L. E.: 1979,Nature 282, 240.

    Google Scholar 

  • White, N. E. and Holt, S. S.: 1982,Astrophys. J. 257, 318.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Orford, K.J. Evidence for the free precession of a neutron star. Astrophys Space Sci 129, 181–186 (1987). https://doi.org/10.1007/BF00717868

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00717868

Keywords

Navigation