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Bright point studyTransition region and coronal observations of bright points by instruments aboard the Solar Maximum Mission and high resolution photospheric magnetograph observations on September 11, 1980 are presented. A total of 31 bipolar ephemeral regions were found in the photosphere from birth in 9.3 hours of combined magnetograph observations from three observatories. Two of the three ephemeral regions present in the field of view of the Ultraviolet Spectrometer-Polarimeter were observed in the C IV 1548 line. The unobserved ephemeral region was determined to be the shortest-lived (2.5 hr) and lowest in magnetic flux density (13G) of the three regions. The Flat Crystal Spectrometer observed only low level signals in the O VIII 18.969 A line, which were not statistically significant to be positively identified with any of the 16 ephemeral regions detected in the photosphere. In addition, the data indicate that at any given time there lacked a one-to-one correspondence between observable bright points and photospheric ephemeral regions, while more ephemeral regions were observed than their counterparts in the transition region and the corona.
Document ID
19830053990
Document Type
Reprint (Version printed in journal)
Authors
Tang, F. (California Institute of Technology Pasadena, CA, United States)
Harvey, K. (Solar Physics Research Corp. Tucson, AZ, United States)
Bruner, M. (Lockheed Research Laboratories Palo Alto, CA, United States)
Kent, B. (Science and Engineering Research Council, Rutherford Appleton Laboratory, Didcot Oxon., United Kingdom)
Antonucci, E. (Torino, Universita Turin, Italy)
Date Acquired
August 11, 2013
Publication Date
January 1, 1982
Publication Information
ISSN: 0273-1177
Subject Category
SOLAR PHYSICS
Funding Number(s)
CONTRACT_GRANT: NGL-05-002-034
CONTRACT_GRANT: NSF ATM-81-12698
Distribution Limits
Public
Copyright
Other