Solar cycle variation of magnetic flux emergence

view Abstract Citations (38) References (3) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Solar cycle variation of magnetic flux emergence. Davis, J. M. ; Golub, L. ; Krieger, A. S. Abstract The number of X-ray bright points (XBP) has been measured from solar X-ray images obtained during two rocket flights in 1976. When compared with the data obtained during the Skylab mission (1973), the number is found to be higher by a factor of 2. As the probability of obtaining the result by chance is less than 1 in 5 million, it is concluded that the number of XBP has increased in the three year interval. As all other indicators of activity have decreased between 1973 and 1976, the cyclical variation of the short-lifetime end of the magnetic-flux-emergence spectrum is out of phase with the solar cycle as defined by active regions or sunspots. Since XBP in 1973 contributed more to the emerging magnetic flux than did active regions, the possibility exists that the total amount of emerging magnetic flux may be maximized at a sunspot minimum. Publication: The Astrophysical Journal Pub Date: June 1977 DOI: 10.1086/182461 Bibcode: 1977ApJ...214L.141D Keywords: Magnetic Flux; Solar Activity; Solar Cycles; Solar Magnetic Field; Solar X-Rays; Magnetic Variations; Spaceborne Astronomy; Sunspot Cycle; Solar Physics full text sources ADS |

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