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Observation of spatial and temporal variations in X-ray bright point emergence patternsObservations of X-ray bright points (XBP) over a six-month interval in 1973 show significant variations in both the number density of XBP as a function of heliographic longitude and in the full-sun average number of XBP from one rotation to the next. The observed increases in XBP emergence are estimated to be equivalent to several large active regions emerging per day for several months. The number of XBP emerging at high latitudes varies in phase with the low-latitude variation and reaches a maximum approximately simultaneous with a major outbreak of active regions. The quantity of magnetic flux emerging in the form of XBP at high latitudes alone is estimated to be as large as the contribution from all active regions.
Document ID
19770040941
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Golub, L.
(American Science and Engineering, Inc. Cambridge, MA, United States)
Krieger, A. S.
(American Science and Engineering, Inc. Cambridge, Mass., United States)
Vaiana, G. S.
(Harvard College Observatory and Smithsonian Astrophysical Observatory Cambridge, Mass., United States)
Date Acquired
August 8, 2013
Publication Date
December 1, 1976
Publication Information
Publication: Solar Physics
Volume: 50
Subject Category
Solar Physics
Accession Number
77A23793
Funding Number(s)
CONTRACT_GRANT: NAS8-31374
CONTRACT_GRANT: NAS8-27758
Distribution Limits
Public
Copyright
Other

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