Advertisement

New phase-coherent measurements of pulsar braking indices

  • Margaret A. Livingstone
  • Victoria M. Kaspi
  • Fotis P. Gavriil
  • Richard N. Manchester
  • E. V. G. Gotthelf
  • Lucien Kuiper
Conference paper

Abstract

Pulsar braking indices offer insight into the physics that underlies pulsar spin-down. Only five braking indices have been measured via phase-coherent timing; all measured values are less than 3, the value expected from magnetic dipole radiation. Here we present new measurements for three of the five pulsar braking indices, obtained with phase-coherent timing for PSRs J1846-0258 (n=2.65±0.01), B1509-58 (n=2.839±0.001) and B0540-69 (n=2.140±0.009). We discuss the implications of these results and possible physical explanations for them.

Keywords

Pulsars Timing 

PACS

95.85.Nv 97.60.Gb 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. [Alpar et al., 2001]
    Alpar, M.A., Ankay, A., Yazgan, E.: Astrophys. J. Lett. 557, L61 (2001) CrossRefADSGoogle Scholar
  2. [Blandford, 1994]
    Blandford, R.: Mon. Not. Roy. Astron. Soc. 267, L7 (1994) ADSGoogle Scholar
  3. [Blandford and Romani, 1988]
    Blandford, R.D., Romani, R.W.: Mon. Not. Roy. Astron. Soc. 234, 57 (1988) ADSGoogle Scholar
  4. [Camilo et al., 2000]
    Camilo, F., Kaspi, V.M., Lyne, A.G., et al.: Astrophys. J. 541, 367 (2000) CrossRefADSGoogle Scholar
  5. [Contopoulos and Spitkovsky, 2006]
    Contopoulos, I., Spitkovsky, A.: Astrophys. J. 643, 1139 (2006) CrossRefADSGoogle Scholar
  6. [Crawford and Keim, 2003]
    Crawford, F., Keim, N.C.: Astrophys. J. 590, 1020 (2003) CrossRefADSGoogle Scholar
  7. [Cusumano et al., 2003]
    Cusumano, G., Massaro, E., Mineo, T.: Astron. Astrophys. 402, 647 (2003) CrossRefADSGoogle Scholar
  8. [Efron, 1979]
    Efron, B.: Ann. Stat. 7, 1 (1979) MATHMathSciNetCrossRefGoogle Scholar
  9. [Faucher-Giguère and Kaspi, 2006]
    Faucher-Giguère, C.-A., Kaspi, V.M.: Astrophys. J. 643, 332 (2006) CrossRefADSGoogle Scholar
  10. [Gotthelf et al., 2000]
    Gotthelf, E.V., Vasisht, G., Boylan-Kolchin, M., Torii, K.: Astrophys. J. 542, L37 (2000) CrossRefADSGoogle Scholar
  11. [Jahoda et al., 1996]
    Jahoda, K., Swank, J.H., Giles, A.B., et al.: Proc. SPIE 2808, 59 (1996) CrossRefADSGoogle Scholar
  12. [Kaspi et al., 1994]
    Kaspi, V.M., Manchester, R.N., Siegman, B., et al.: Astrophys. J. 422, L83 (1994) CrossRefADSGoogle Scholar
  13. [Kaspi et al., 1996]
    Kaspi, V.M., Manchester, R.N., Johnston, S., et al.: Astron. J. 111, 2028 (1996) CrossRefADSGoogle Scholar
  14. [Kramer et al., 2006]
    Kramer, M., Lyne, A.G., O’Brien, J.T., et al.: Science 312, 549 (2006) CrossRefADSGoogle Scholar
  15. [Livingstone et al., 2005a]
    Livingstone, M.A., Kaspi, V.M., Gavriil, F.P.: Astrophys. J. 633, 1095 (2005a) CrossRefADSGoogle Scholar
  16. [Livingstone et al., 2005b]
    Livingstone, M.A., Kaspi, V.M., Gavriil, F.P., Manchester, R.N.: Astrophys. J. 619, 1046 (2005b) CrossRefADSGoogle Scholar
  17. [Livingstone et al., 2006]
    Livingstone, M.A., Kaspi, V.M., Gotthelf, E.V.G., Kuiper, L.: Astrophys. J. 647, 1286 (2006) CrossRefADSGoogle Scholar
  18. [Lyne et al., 1993]
    Lyne, A.G., Pritchard, R.S., Smith, F.G.: Mon. Not. Roy. Astron. Soc. 265, 1003 (1993) ADSGoogle Scholar
  19. [Lyne et al., 1996]
    Lyne, A.G., Pritchard, R.S., Graham-Smith, F., Camilo, F.: Nature 381, 497 (1996) CrossRefADSGoogle Scholar
  20. [Manchester et al., 1985]
    Manchester, R.N., Durdin, J.M., Newton, L.M.: Nature 313, 374 (1985) CrossRefADSGoogle Scholar
  21. [Manchester et al., 1993]
    Manchester, R.N., Mar, D., Lyne, A.G., et al.: Astrophys. J. 403, L29 (1993) CrossRefADSGoogle Scholar
  22. [Manchester and Taylor, 1977]
    Manchester, R.N., Taylor, J.H.: Pulsars. Freeman, San Francisco (1977) Google Scholar
  23. [Marshall et al., 2004]
    Marshall, F.E., Gotthelf, E.V., Middleditch, J., et al.: Astrophys. J. 603, 682 (2004) CrossRefADSGoogle Scholar
  24. [McKenna and Lyne, 1990]
    McKenna, J., Lyne, A.G.: Nature 343, 349 (1990) CrossRefADSGoogle Scholar
  25. [Melatos, 1997]
    Melatos, A.: Mon. Not. Roy. Astron. Soc. 288, 1049 (1997) ADSGoogle Scholar
  26. [Menou et al., 2001]
    Menou, K., Perna, R., Hernquist, L.: Astrophys. J. 559, 1032 (2001) CrossRefADSGoogle Scholar
  27. [Michel and Tucker, 1969]
    Michel, F.C., Tucker, W.H.: Nature 223, 277 (1969) CrossRefADSGoogle Scholar
  28. [Ögelman and Hasinger, 1990]
    Ögelman, H., Hasinger, G.: Astrophys. J. Lett. 353, L21 (1990) CrossRefADSGoogle Scholar
  29. [Rots, 2004]
    Rots, A.: In: Kaaret, P., Lamb, F.K., Swank, J.H. (eds.) Proceedings of X-ray Timing 2003. Rossi and Beyond, vol. 714, p. 309. Melville (2004) Google Scholar
  30. [Spitkovsky, 2005]
    Spitkovsky, A.: In: Bulik, T., Rudak, B., Madejski, G. (eds.) Proceedings of Astrophysical Sources of High Energy Particles and Radiation, vol. 801, p. 253 (2005) Google Scholar
  31. [Timokhin, 2006]
    Timokhin, A.N.: Mon. Not. Roy. Astron. Soc. 368, 1055 (2006) CrossRefADSGoogle Scholar
  32. [Zhang et al., 2001]
    Zhang, W., Marshall, F.E., Gotthelf, E.V., et al.: Astrophys. J. 554, L177 (2001) CrossRefADSGoogle Scholar

Copyright information

© Springer 2007

Authors and Affiliations

  • Margaret A. Livingstone
    • 1
  • Victoria M. Kaspi
    • 1
  • Fotis P. Gavriil
    • 2
  • Richard N. Manchester
    • 3
  • E. V. G. Gotthelf
    • 4
  • Lucien Kuiper
    • 5
  1. 1.Physics DepartmentMcGill UniversityMontrealCanada
  2. 2.NASA Goddard Space Flight Center Code 662X-ray Astrophysics LaboratoryGreenbeltUSA
  3. 3.Australia National Telescope FacilityCSIROEppingAustralia
  4. 4.Columbia Astrophysics LaboratoryColumbia UniversityNew YorkUSA
  5. 5.Netherlands Institute for Space ResearchUtrechtNetherlands

Personalised recommendations