Coincidences Between Magnetic Oscillations and Hα Bright Points

  • P. F. Moretti
  • A. Cacciani
  • M. Messerotti
  • A. Hanslmeier
  • W. Otruba
Conference paper
Part of the Astrophysics and Space Science Library book series (ASSL, volume 259)


The origin of the solar oscillations and the interaction with the magnetic field are usually considered as two distinct problems. Four hours of 1 minute cadence full-disk dopplergrams, longitudinal magnetograms and intensity images, taken in the sodium D lines at Kanzelhöhe Solar Observatory, have been analyzed to investigate possible spatial correlations between the magnetic oscillations and the Hα bright points. The phase relation between the velocity and intensity images is used to enhance the magnetic signatures in the low spatial resolution images. The coincidences between the magnetic oscillations locations and the Hα bright points suggest to investigate the magnetic reconnections as a possible source of solar oscillations.


Intensity Image Bright Point Magnetic Oscillation Solar Oscillation Magnetic Field Fluctuation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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  1. Cacciani, A., Hanslmeier, A., Messerotti, M., Moretti, P.F., Otruba, W., and Pettauer,Th.: 1997, in A. Hanslmeier and M. Messerotti (eds.), Motions in the Solar Atmosphere,Kluwer, Dordrecht, 271.Google Scholar
  2. Cacciani, A., Di Martino, V., Jefferies, S.M., and Moretti, P.F.: 1998, in Structure and Dynamics of the Interior of the Sun and Sun-like Stars, ESA-SP 418, 617.Google Scholar
  3. Chae, J, Wang, H., Lee, C, Goode, P.R., and Schouhle, U.: 1998, ApJ 497, L109.ADSCrossRefGoogle Scholar
  4. Goode, P.R., Strous, L.H., Rimmele, T.R., and Stebbins, R.T.: 1998, Ap J 495, L27.ADSCrossRefGoogle Scholar
  5. Haber, D.A., Toomre, J. Hill, F., and Gough, D.: 1998, in E.J. Rolfe (ed.), Seismology of the Sun and Sun-like Stars, ESA-SP 286, 301.Google Scholar
  6. Hoekzema, N.M., Rutten, R.J., and Cook, J.W.: 1997, Ap J 474, 518.ADSCrossRefGoogle Scholar
  7. Horn, T., Staude, J., and Landgraf, V.: 1997, Solar Phys. 172, 69.ADSCrossRefGoogle Scholar
  8. Kosovichev, A.G. and Zarkova, V.V.: 1998, Nature 393, 317.ADSCrossRefGoogle Scholar
  9. Lites, B.W., Rutten, R.J., and Berger, T.E.: 1999, ApJ 517, L1013.ADSCrossRefGoogle Scholar
  10. Moretti, P.F., and the MOF Development Group: 2000, Solar Phys., in press.Google Scholar
  11. Moretti, P.F., Oliviero, M., Severino, G., and the MOF Development Group: 2000, Mem.S.A.It., in press.Google Scholar
  12. Oliviero, M., Severino, G., and Straus, Th.: 1998, in Structure and Dynamics of the Interior of the Sun and Sun-like Stars, ESA-SP 418, 275.Google Scholar
  13. Oliviero, M., Severino, G., Straus, Th., S.M., and Apporchaux, T.: 1999, ApJ 516, L45.ADSCrossRefGoogle Scholar
  14. Rüedi, I., Solanki, S.K., Stenflo, J.O., Tarbell, T., and Sherrer, P.H.: 1998, A&A 335, L97.ADSGoogle Scholar
  15. Wolff, C.L.: 1972, ApJ 176, 833.ADSCrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 2001

Authors and Affiliations

  • P. F. Moretti
    • 1
  • A. Cacciani
    • 2
  • M. Messerotti
    • 3
  • A. Hanslmeier
    • 4
  • W. Otruba
    • 5
  1. 1.Osservatorio Astronomico di CapodimonteNapoliItaly
  2. 2.Department of PhysicsUniversity of Rome “La Sapienza”RomeItaly
  3. 3.Osservatorio Astronomico di TriesteTriesteItaly
  4. 4.Institut für Geophysik, Astrophysik und MeteorologieKarl-Franzens-Universität GrazGrazAustria
  5. 5.Sonnenobservatorium KanzelhöheTreffenAustria

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