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RX J1856.5-3754 as a possible strange star candidate

Conference paper

Abstract

RX J1856.5-3754 has been proposed as a strange star candidate due to its very small apparent radius measured from its X-ray thermal spectrum. However, its optical emission requires a much larger radius and thus most of the stellar surface must be cold and undetectable in X-rays. In the case the star is a neutron star such a surface temperature distribution can be explained by the presence of a strong toroidal field in the crust (Pérez-Azorín et al.: Astron. Astrophys. 451, 1009 (2006); Geppert et al.: Astron. Astrophys. 457, 937 (2006)) We consider a similar scenario for a strange star with a thin baryonic crust to determine if such a magnetic field induced effect is still possible.

Keywords

RX J1856.5-3754 Strange star Neutron star 

PACS

26.60.+c 97.60.Jd 95.30.Tg 

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References

  1. [Alcock et al., 1986]
    Alcock, C., Farhi, E., Olinto, A.: Astrophys. J. 310, 261 (1986) CrossRefADSGoogle Scholar
  2. [Alford, 2001]
    Alford, M.: Annu. Rev. Nucl. Part. Sci. 51, 131 (2001) CrossRefADSGoogle Scholar
  3. [Braje and Romani, 2002]
    Braje, T.M., Romani, R.W.: Astrophys. J. 580, 1043 (2002) CrossRefADSGoogle Scholar
  4. [Dey et al., 1998]
    Dey, M., Bombaci, I., Dey, J., et al.: Phys. Lett. B 438, 123 (1998) CrossRefADSGoogle Scholar
  5. [Drake et al., 2002]
    Drake, J.J., Marshall, H.L., Dreizler, S., et al.: Astrophys. J. 572, 996 (2002) CrossRefADSGoogle Scholar
  6. [Farhi and Jaffe, 1984]
    Farhi, E., Jaffe, R.L.: Phys. Rev. D 30, 2379 (1984) CrossRefADSGoogle Scholar
  7. [Geppert et al., 2004]
    Geppert, U., Küker, M., Page, D.: Astron. Astrophys. 426, 267 (2004) MATHCrossRefADSGoogle Scholar
  8. [Geppert et al., 2006]
    Geppert, U., Küker, M., Page, D.: Astron. Astrophys. 457, 937 (2006) CrossRefADSGoogle Scholar
  9. [Haberl, 2007]
    Haberl, F.: Astrophys. Space Sci. 308. DOI  10.1007/s10509-007-9342-x (2007)
  10. [Haensel et al., 1986]
    Haensel, P., Zdunik, J.L., Schaeffer, R.: Astron. Astrophys. 160, 121 (1986) ADSGoogle Scholar
  11. [Haensel et al., 1989]
    Haensel, P., Zdunik, J.L., Dobaczewski, J.: Astron. Astrophys. 222, 353 (1989) ADSGoogle Scholar
  12. [Hanauske et al., 2001]
    Hanauske, M., Satarov, L.M., Mishustin, I.N., et al.: Phys. Rev. D 64, 3005 (2001) CrossRefADSGoogle Scholar
  13. [Ho et al., 2007]
    Ho, W.C.G., Kaplan, D.L., Chang, P., et al.: Astrophys. Space Sci. 308. DOI  10.1007/s10509-007-9366-2 (2007)
  14. [Itoh, 1970]
    Itoh, N.: Prog. Theor. Phys. 44, 291 (1970) CrossRefADSGoogle Scholar
  15. [Motch et al., 2003]
    Motch, C., Zavlin, V.E., Haberl, F.: Astron. Astrophys. 408, 323 (2003) CrossRefADSGoogle Scholar
  16. [Page, 1995]
    Page, D.: Astrophys. J. 442, 273 (1995) CrossRefADSGoogle Scholar
  17. [Page, 2007]
    Page, D.: Astrophys. Space Sci. 308. DOI  10.1007/s10509-007-9316-z (2007)
  18. [Page et al., 2000]
    Page, D., Geppert, U., Zannias, T.: Astron. Astrophys. 360, 1053 (2000) ADSGoogle Scholar
  19. [Page et al., 2006]
    Page, D., Geppert, U., Weber, F.: Nucl. Phys. A 777, 497 (2006) CrossRefADSGoogle Scholar
  20. [Page and Reddy, 2006]
    Page, D., Reddy, S.: Annu. Rev. Nucl. Part. Sci. 56, 327 (2006) CrossRefADSGoogle Scholar
  21. [Pérez-Azorín et al., 2005]
    Pérez-Azorín, J.F., Miralles, J.A., Pons, J.A.: Astron. Astrophys. 433, 275 (2005) CrossRefADSGoogle Scholar
  22. [Pérez-Azorín et al., 2006]
    Pérez-Azorín, J.F., Miralles, J.A., Pons, J.A.: Astron. Astrophys. 451, 1009 (2006) MATHCrossRefADSGoogle Scholar
  23. [Pons et al., 2002]
    Pons, J.A., Walter, F.M., Lattimer, J.M., et al.: Astrophys. J. 564, 981 (2002) CrossRefADSGoogle Scholar
  24. [Pons, 2007]
    Pons, J.: Astrophys. Space Sci. 308. DOI  10.1007/s10509-007-9336-8 (2007)
  25. [Ruderman, 2004]
    Ruderman, M.: In: Baykal, A., Yerli, S.K., Gilfanov, M., Grebenev, M. (eds.) The Electromagnetic Spectrum of Neutron Stars (e-print: astro-ph/0410607) Google Scholar
  26. [Trümper et al., 2004]
    Trümper, J.E., Burwitz, V., Haberl, F., et al.: Nucl. Phys. B Proc. Suppl. 132, 560 (2004) CrossRefADSGoogle Scholar
  27. [Turolla et al., 2004]
    Turolla, R., Zane, Z., Drake, J.J.: Astrophys. J. 603, 265 (2004) CrossRefADSGoogle Scholar
  28. [van Adelsberg et al., 2005]
    van Adelsberg, M., Lai, D., Potekhin, A.Y., et al.: Astrophys. J. 628, 902 (2005) CrossRefADSGoogle Scholar
  29. [Weber, 2005]
    Weber, F.: Prog. Nucl. Part. Phys. 54, 193 (2005) CrossRefADSGoogle Scholar
  30. [Witten, 1984]
    Witten, E.: Phys. Rev. D 30, 272 (1984) CrossRefADSMathSciNetGoogle Scholar

Copyright information

© Springer 2007

Authors and Affiliations

  1. 1.Instituto de AstronomíaUniversidad Nacional Autónoma de MéxicoMexicoMexico

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