Astrophysical Bulletin

, Volume 66, Issue 4, pp 407–415 | Cite as

Non-Gaussianity of peak statistics in contrasting spots of WMAP ILC

Article

Abstract

We study the statistics of isolated maxima and minima in the regions of three contrasting spots in the WMAP7 ILC data. A non-Gaussianity of signal distribution is detected in these regions. We demonstrate that non-Gaussian properties are related to the appearance of low harmonics ( ≤20). Possible reasons of this non-Gaussianity are discussed.

Keywords

cosmology: cosmic background radiation surveys 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    C. L. Bennett M. Halpern, G. Hinshaw, et al., Astrophys. J. Suppl. 148, 1 (2003), astro-ph/0302207.ADSCrossRefGoogle Scholar
  2. 2.
    G. Hinshaw, D. N. Spergel, L. Verde, et al., Astrophys. J. Suppl. 170, 288 (2007), astro-ph/0603451.ADSCrossRefGoogle Scholar
  3. 3.
    G. Hinshaw, J. L. Weiland, R. S. Hill, et al., Astrophys. J. Suppl. 180, 225 (2009), arXiv:0803.0732.ADSCrossRefGoogle Scholar
  4. 4.
    N. Jarosik, C. L. Bennett, J. Dunkley, et al., Astrophys. J. Suppl., 192, 14 (2010), arXiv:1001.4744.ADSCrossRefGoogle Scholar
  5. 5.
    L.-Y. Chiang, P.D. Naselsky, O. V. Verkhodanov, and M. J. Way, Astrophys. J. 590, L65 (2003), astro-ph/0303643.ADSCrossRefGoogle Scholar
  6. 6.
    P. D. Naselsky, A. G. Doroshkevich, and O. V. Verkhodanov, Astrophys. J. 599, L53 (2003), astro-ph/0310542.ADSCrossRefGoogle Scholar
  7. 7.
    P. D. Naselsky, A. G. Doroshkevich, and O. V. Verkhodanov, Monthly Notices Roy. Astronom. Soc. 349, 695 (2004), astro-ph/0310601.ADSCrossRefGoogle Scholar
  8. 8.
    P. D. Naselsky and O. V. Verkhodanov, Int. J. Mod. Phys. D 17, 179 (2008), astro-ph/0609409.ADSMATHCrossRefGoogle Scholar
  9. 9.
    P. D. Naselsky and O. V. Verkhodanov, Astrophysical Bulletin 62, 218 (2007).Google Scholar
  10. 10.
    P. D. Naselsky, O. V. Verkhodanov, and M. T. B. Nielsen, Astrophysical Bulletin 63, 216 (2008), arXiv:0707.1484.ADSCrossRefGoogle Scholar
  11. 11.
    P. Coles, P. Dineen, J. Earl, and D. Wright, Monthly Notices Roy. Astronom. Soc. 350, 989 (2004), astro-ph/0310252.ADSCrossRefGoogle Scholar
  12. 12.
    H. K. Eriksen, D. I. Novikov, P. B. Lilje, et al., Astrophys. J. 612, 64 (2004).ADSCrossRefGoogle Scholar
  13. 13.
    J. D. McEwen, M. P. Hobson, A. N. Lasenby, and D. J. Mortlock, Monthly Notices Roy. Astronom. Soc. 359, 1583 (2005).ADSCrossRefGoogle Scholar
  14. 14.
    R. Tojeiro, P. G. Castro, A. F. Heavens, and S. Gupta, Monthly Notices Roy. Astronom. Soc. 365, 265 (2006).ADSCrossRefGoogle Scholar
  15. 15.
    F. K. Hansen, P. Cabella, D. Marinucci, and N. Vittorio, Astrophys. J. 607, L67 (2004).ADSCrossRefGoogle Scholar
  16. 16.
    P. D. Naselsky, D. I. Novikov, I. D. Novikov, Reliktovoe izlychenie (Relic Radiation) (Nauka, Moscow, 2003) [in Russian].Google Scholar
  17. 17.
    E. Bertin and S. Arnouts, Astronom. and Astrophys. Suppl. Ser. 117, 393 (1996).ADSCrossRefGoogle Scholar
  18. 18.
    C. L. Bennett, R. S. Hill, G. Hinshaw, et al. Astrophys. J. Suppl. 192, 17 (2010), arXiv:1001.4758.ADSCrossRefGoogle Scholar
  19. 19.
    P. Vielva, E. Martinez-Gonzlez, R. B. Barreiro, et al., Astrophys. J. 609, 22 (2004), astro-ph/0310273.ADSCrossRefGoogle Scholar
  20. 20.
    L. Cayon, J. Jin, and A. Treaster, Monthly Notices Roy. Astronom. Soc. 362, 826 (2005).ADSCrossRefGoogle Scholar
  21. 21.
    M. Cruz, E. Martinez-Gonzalez, P. Vielva, and L. Cayon, Monthly Notices Roy. Astronom. Soc. 356, 29 (2005).ADSCrossRefGoogle Scholar
  22. 22.
    M. Cruz, L. Cayon, E. Martinez-Gonzalez, et al., Astrophys. J. 655, 11 (2007), astro-ph/0603859.ADSCrossRefGoogle Scholar
  23. 23.
    L. Rudnick, S. Brown, and L. R. Williams, Astrophys. J. 671, 40 (2007), arXiv:0704.0908.ADSCrossRefGoogle Scholar
  24. 24.
    R. K. Sachs and A. M. Wolfe, Astrophys. J. 147, 73 (1967).ADSCrossRefGoogle Scholar
  25. 25.
    M. Cruz, N. Turok, P. Vielva, et al., Science 318, 1612 (2007), arXiv:0710.5737.ADSCrossRefGoogle Scholar
  26. 26.
    M. Cruz, E. Martinez-Gonzalez, P. Vielva, et al., Monthly Notices Roy. Astronom. Soc. 390, 913 (2008), arXiv:0804.2904.ADSCrossRefGoogle Scholar
  27. 27.
    T. Jaffe, A. J. Banday, H. K. Eriksen, et al., Astrophys. J. 629, L1 (2005), astro-ph/0503213.Google Scholar
  28. 28.
    P. D. Naselsky, P. R. Christensen, P. Coles, et al., Astrophysical Bulletin 65, 101 (2010).ADSCrossRefGoogle Scholar
  29. 29.
    J. J. Condon, W. D. Cotton, E. W. Greisen, et al., Astronom. J. 115, 1693 (1998).ADSCrossRefGoogle Scholar
  30. 30.
    K.M. Smith and D. Huterer, (2008), arXiv:0805.2751Google Scholar
  31. 31.
    D. I. Solovyev and O. V. Verkhodanov, Astrophysical Bulletin 65, 121 (2010).ADSCrossRefGoogle Scholar
  32. 32.
    O. V. Verkhodanov, A. G. Doroshkevich, P. D. Naselsky, et al., Bull. Spec. Astrophys. Obs. 58, 40 (2005).ADSGoogle Scholar
  33. 33.
    O. V. Verkhodanov and V. L. Gorokhov, Bull. Spec. Astrophys. Obs. 39, 155 (1996).ADSGoogle Scholar
  34. 34.
    P. A. R. Ade, N. Aghanim, M. Arnaud, et al., Astronom. and Astrophys. submitted (2011), arXiv:1101.2041.Google Scholar
  35. 35.
    O. V. Verkhodanov and M. L. Khabibullina, Astrophysical Bulletin 66, 183 (2011), arXiv:1108.4377.ADSCrossRefGoogle Scholar
  36. 36.
    A. G. Doroshkevich and O. V. Verkhodanov, Phys. Rev. D 83, 043002 (2011), arXiv:1008.4094.ADSCrossRefGoogle Scholar
  37. 37.
    K. Górski, E. Hivon, A. J. Banday, et al., Astrophys. J. 622, 759 (2005).ADSCrossRefGoogle Scholar
  38. 38.
    A. G. Doroshkevich, P. D. Naselsky, O. V. Verkhodanov, et al., Int. J. Mod. Phys. D 14, 275 (2003), astro-ph/0305537.ADSCrossRefGoogle Scholar
  39. 39.
    A. G. Doroshkevich, O. B. Verkhodanov, O. P. Naselsky, et al., Int. J. Mod. Phys. D 20, 153 (2011), arXiv:0904.2517.CrossRefGoogle Scholar

Copyright information

© Pleiades Publishing, Ltd. 2011

Authors and Affiliations

  1. 1.Special Astrophysical ObservatoryRussian Academy of SciencesNizhnii ArkhyzRussia
  2. 2.Astronomy DepartmentSt. Petersburg State UniversitySt. PetersburgRussia

Personalised recommendations