Abstract
Full-disc full-resolution (FDFR) solar images obtained with the Extreme Ultraviolet Imaging Telescope (EIT) on board the Solar and Heliospheric Observatory (SOHO) were used to analyse the centre-to-limb function and latitudinal distribution of coronal bright points. The results obtained with the interactive and the automatic method, as well as for three subtypes of coronal bright points for the time period 4 June 1998 to 22 May 1999 are presented and compared. An indication of a two-component latitudinal distribution of coronal bright points was found. The central latitude of coronal bright points traced with the interactive method lies between 10∘ and 20∘. This is closer to the equator than the average latitude of sunspots in the same period. Possible implications for the interpretation of the solar differential rotation are discussed. In the appendix, possible differences between the two solar hemispheres are analysed. More coronal bright points were present in the southern solar hemisphere than in the northern one. This asymmetry is statistically significant for the interactive method and not for the automatic method. The visibility function is symmetrical around the central meridian.
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Anderson, T. W. and Finn, J. D.: 1996, The New Statistical Analysis of Data, Springer-Verlag, New York.
Ballester, J. L., Oliver, R., and Carbonell, M.: 2005, Astron. Astrophys. 431, L5.
Balthasar, H., Vázquez, M., and Wöhl, H.: 1986, Astron. Astrophys. 155, 87.
Benevolenskaya, E. E., Kosovichev, A. G., and Scherrer, P. H.: 2001, Astrophys. J. 554, L107.
Brajša, R., Pohjolainen, S., Ruždjak, V., Teräsranta, H., Urpo, S., Vršnak, B., and Wöhl, H.: 1994, in M. Schüssler and W. Schmidt (eds.), Solar Magnetic Fields, Proceedings of International Conference held in Freiburg, Cambridge University Press, Cambridge, p. 62.
Brajša, R., Ruždjak, V., Vršnak, B., Pohjolainen, S., Urpo, S., Scholl, A., and Wöhl, H.: 1997, Solar Phys. 171, 1.
Brajša, R., Ruždjak, V., Vršnak, B., Wöhl, H., Pohjolainen, S., and Urpo, S.: 1999, Solar Phys. 184, 281.
Brajša, R., Wöhl, H., Vršnak, B., Ruždjak, V., Clette, F., and Hochedez, J. F.: 2001, Astron. Astrophys. 374, 309.
Brajša, R., Wöhl, H., Vršnak, B., Ruždjak, V., Clette, F., and Hochedez, J. F.: 2002, Astron. Astrophys. 392, 329.
Brajša, R., Wöhl, H., Vršnak, B., Ruždjak, V., Clette, F., Hochedez, J. F., Roša, D., and Hržina, D.: 2003, Hvar Observ. Bull. 27, 13.
Brajša, R., Wöhl, H., Vršnak, B., Ruždjak, V., Clette, F., Hochedez, J. F., and Roša, D.: 2004, Astron. Astrophys. 414, 707.
Brun, A. S.: 2004, Solar Phys. 220, 333.
Carbonell, M., Oliver, R., and Ballester, J. L.: 1993, Astron. Astrophys. 274, 497.
Delaboudinière, J. P., Artzner, G. E., Brunaud, J., Gabriel, A. H., Hochedez, J. F., Millier, F., et al.: 1995, Solar Phys. 162, 291.
Dezső, L.: 1964, Third Consultation on Solar Physics and Hydrodynamics, Czechosl. Acad. Sci. Astron. Inst. Pub. 51, 49.
Feynman, R. P., Leighton, R. B., and Sands, M.: 1963, The Feynman Lectures on Physics I, vol. I, chapter 6, Addison-Wesley, Reading, MA.
Fisk, L. A.: 1996, J. Geophys. Res. 101, 15547.
Gelfreikh, G. B., Makarov, V. I., Tlatov, A. G., Riehokainen, A., and Shibasaki, K.: 2002, Astron. Astrophys. 389, 618.
Gissot, S. F., Hochedez, J.-F., Dibos, F., Brajša, R., Jacques, L., Berghmans, D., Zhukov, A., Clette, F., Wöhl, H., and Antoine, J.-P.: 2003, in Solar Variability as an Input to the Earth's Environment, Proceedings of ISCS 2003 Symposium, ESA SP-535, p. 853.
Golub, L., Krieger, A. S., and Vaiana, G. S.: 1975, Solar Phys. 42, 131.
Hagenaar, H. J., Schrijver, C. J., and Title, A. M.: 2003, Astrophys. J. 584, 1107.
Harvey-Angle, K. L.: 1993, Magnetic Bipoles on the Sun, Ph.D. thesis, University of Utrecht, Utrecht.
Howard, R. F.: 1991, Solar Phys. 135, 327.
Howard, R. and LaBonte, B. J.: 1980, Astrophys. J. 239, L33.
Joshi, A.: 1995, Solar Phys. 157, 315.
Joshi, B. and Pant, P.: 2005, Astron. Astrophys. 431, 359.
Leftus, V.: 1960, Publ. Astron. Inst. Czechosl. 11, 31.
Martin, S. F. and Harvey, K. L.: 1979, Solar Phys. 64, 93.
Mouradian, Z. and Soru-Escaut, I.: 1994, Astron. Astrophys. 290, 279.
Oliver, R. and Ballester, J. L.: 1994, Solar Phys. 152, 481.
Ossendrijver, M., Hoyng, P., and Schmitt, D.: 1996, Astron. Astrophys. 313, 938.
Ossendrijver, M.: 2003, Astron. Astrophys. Rev. 11, 287.
Özgüc, A. and Ücer, C.: 1987, Solar Phys. 114, 141.
Pulkkinen, P. J., Brooke, J., Pelt, J., and Tuominen, I.: 1999, Astron. Astrophys. 341, L43.
Riehokainen, A., Urpo, S., and Valtaoja, E.: 1998, Astron. Astrophys. 333, 741.
Rüdiger, G. and Hollerbach, R.: 2004, The Magnetic Universe, Wiley-VCH, Weinheim, p. 95.
Sattarov, I., Pevtsov, A. A., Hojaev, A. S., and Sherdonov, C. T.: 2002, Astrophys. J. 564, 1042.
Snodgrass, H. B.: 1992, in K. L. Harvey (ed.), The Solar Cycle, Proceedings of the 12th Sacramento Peak Summer Workshop, ASP Conference Series, vol. 27, p. 71.
Stix, M.: 2002, The Sun, Springer-Verlag, Berlin, p. 277.
Temmer, M., Veronig, A., and Hanslmeier, A.: 2002, Astron. Astrophys. 390, 707.
Temmer, M., Veronig, A., Hanslmeier, A., Otruba, W., and Messerotti, M.: 2001, Astron. Astrophys. 375, 1049.
Verma, V. K.: 1993, Astrophys. J. 403, 797.
Vršnak, B., Pohjolainen, S., Urpo, S., Teräsranta, H., Brajša, R., Ruždjak, V., Mouradian, Z., and Jurač, S.: 1992, Solar Phys. 137, 67.
Vršnak, B., Brajša, R., Wöhl, H., Ruždjak, V., Clette, F., and Hochedez, J. F.: 2003, Astron. Astrophys. 404, 1117.
Wang, Y.-M. and Sheeley, N. R., Jr.: 1989, Solar Phys. 124, 81.
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Brajša, R., Wöhl, H., Vršnak, B. et al. Spatial Distribution and North–South Asymmetry of Coronal Bright Points from Mid-1998 to Mid-1999. Sol Phys 231, 29–44 (2005). https://doi.org/10.1007/s11207-005-8784-y
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DOI: https://doi.org/10.1007/s11207-005-8784-y