NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Microwave and hard X-ray observations of a solar flare with a time resolution better than 100 msSimultaneous microwave and X-ray observations are presented for a solar flare detected on 1980 May 8 starting at 1937 UT. The X-ray observations were made with the Hard X-ray Burst Spectrometer on the Solar Maximum Mission and covered the energy range from 28-490 keV with a time resolution of 10 ms. The microwave observations were made with the 5 and 45 foot antennas at the Itapetinga Radio Obervatory at frequencies of 7 and 22 GHz, with time resolutions of 100 ms and 1 ms respectively. Detailed correlation analysis of the different time profiles of the event show that the major impulsive in the X-ray flux preceded the corresponding microwave peaks at 22 GHz by about 240 ms. For this particular burst the 22 GHz peaks preceded the 7 GHz by about 1.5s. Observed delays of the microwave peaks are too large for a simple electron beam model but they can be reconciled with the speeds of shock waves in a thermal model. Previously announced in STAR as N82-30215
Document ID
19830053084
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Kaufmann, P.
(Instituto de Pesquisas Espaciais Sao Jose dos Campos, Brazil)
Costa, J. E. R.
(Instituto de Pesquisas Espaciais Sao Josedos Campos, Sao Paulo, Brazil)
Dennis, B. R.
(Instituto de Pesquisas Espaciais Sao Jose dos Campos, Brazil)
Frost, K. J.
(Instituto de Pesquisas Espaciais Sao Jose dos Campos, Brazil)
Orwig, L. E.
(NASA Goddard Space Flight Center Laboratory of Astronomy and Solar Physics, Greenbelt, MD, United States)
Kiplinger, A.
(NASA Goddard Space Flight Center Laboratory of Astronomy and Solar Physics, Greenbelt; Applied Research Corp., Landover, MD, United States)
Strauss, F. M.
(Instituto de Pesquisas Espaciais Sao Jose dos Campos, Brazil)
Date Acquired
August 11, 2013
Publication Date
April 1, 1983
Publication Information
Publication: Solar Physics
Volume: 84
ISSN: 0038-0938
Subject Category
Solar Physics
Accession Number
83A34302
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available