Global Asymmetry of the Sun Observed in the Extreme Ultraviolet Radiation
作者： I.S. Veselovsky , A.N. Zhukov , A.V. Dmitriev , M.V. Tarsina , F. Clette
关键词:
摘要: We report on observations of the solar luminosity variations in Fe xii line (195 A) over period 1996–1999, which corresponds to minimum and rising phase current 23rd cycle. The relatively or rather high temporal cadence spatial resolution Extreme-ultraviolet Imaging Telescope (EIT) board Solar Heliospheric Observatory (SOHO) allowed a nearly continuous measurement intensity different structures Sun. find that significant contribution longitudinal asymmetry, thus 27-day variability EUV radiation, is produced by numerous intermediate brightness elements are globally distributed large areas (up about \( \sim \frac{2}{3} \) whole surface Sun). When activity low, this component even becomes dominant from localized active regions bright points. This suggests weak magnetic field outside constitute an important factor through modulates luminosity.
springer.com
harvard.edu
sci-hub.se 参考文章(10)
Claus Fröhlich, Dominique A. Crommelynck, Christoph Wehrli, Martin Anklin, Steven Dewitte, Alain Fichot, Wolfgang Finsterle, Antonio Jiménez, André Chevalier, Hansjörg Roth, In-Flight Performance of the Virgo Solar Irradiance Instruments on Soho Solar Physics. ,vol. 175, pp. 267- 286 ,(1997) , 10.1007/978-94-011-5236-5_15
H. P. Warren, J. T. Mariska, J. Lean, A new reference spectrum for the EUV irradiance of the quiet Sun 2. Comparisons with observations and previous models Journal of Geophysical Research. ,vol. 103, pp. 12091- 12102 ,(1998) , 10.1029/98JA00811
P. Foukal, J. Lean, Magnetic modulation of solar luminosity by photospheric activity The Astrophysical Journal. ,vol. 328, pp. 347- 357 ,(1988) , 10.1086/166297
P. Foukal, J. Lean, The influence of faculae on total solar irradiance and luminosity The Astrophysical Journal. ,vol. 302, pp. 826- ,(1986) , 10.1086/164043
G.J. Rottman, 27-Day variations observed solar u.v. (120–300 nm) irradiance☆ Planetary and Space Science. ,vol. 31, pp. 1001- 1007 ,(1983) , 10.1016/0032-0633(83)90091-0
J. -P. Delaboudinière, G. E. Artzner, J. Brunaud, A. H. Gabriel, J. F. Hochedez, F. Millier, X. Y. Song, B. Au, K. P. Dere, R. A. Howard, R. Kreplin, D. J. Michels, J. D. Moses, J. M. Defise, C. Jamar, P. Rochus, J. P. Chauvineau, J. P. Marioge, R. C. Catura, J. R. Lemen, L. Shing, R. A. Stern, J. B. Gurman, W. M. Neupert, A. Maucherat, F. Clette, P. Cugnon, E. L. Van Dessel, EIT: Extreme-UltraViolet Imaging Telescope for the SOHO Mission Solar Physics. ,vol. 162, pp. 291- 312 ,(1995) , 10.1007/BF00733432
D. Moses, F. Clette, J.-P. Delaboudinière, G. E. Artzner, M. Bougnet, J. Brunaud, C. Carabetian, A. H. Gabriel, J. F. Hochedez, F. Millier, X. Y. Song, B. Au, K. P. Dere, R. A. Howard, R. Kreplin, D. J. Michels, J. M. Defise, C. Jamar, P. Rochus, J. P. Chauvineau, J. P. Marioge, R. C. Catura, J. R. Lemen, L. Shing, R. A. Stern, J. B. Gurman, W. M. Neupert, J. Newmark, B. Thompson, A. Maucherat, F. Portier-Fozzani, D. Berghmans, P. Cugnon, E. L. Van Dessel, J. R. Gabryl, EIT OBSERVATIONS OF THE EXTREME ULTRAVIOLET SUN Solar Physics. ,vol. 175, pp. 571- 599 ,(1997) , 10.1023/A:1004902913117
M Fligge, SK Solanki, YC Unruh, C Fröhlich, Ch Wehrli, A model of solar total and spectral irradiance variations Astronomy and Astrophysics. ,vol. 335, pp. 709- 718 ,(1998)
Judith Lean, Solar ultraviolet irradiance variations: A review Journal of Geophysical Research. ,vol. 92, pp. 839- 868 ,(1987) , 10.1029/JD092ID01P00839
Edward G. Gibson, The quiet sun NASSP. ,vol. 303, ,(1973)