Accession Number:

AD0753393

Title:

Spectral Development of a Solar X-Ray Burst Observed on OSO-7

Corporate Author:

AEROSPACE CORP EL SEGUNDO CA LAB OPERATIONS

Report Date:

1972-11-01

Abstract:

The authors have made computer fits to proportional counter soft x- ray data and scintillation counter hard x-ray data for a small hard x-ray burst at UT 0519 on November 16, 1971. The energy content of the thermal plasma increased in conjunction with a hard x-ray burst of 60-second duration which entirely preceded the 5-keV x-ray maximum. If x-rays arise by thick target bremsstrahlung, the observed suprathermal electrons have sufficient energy to heat the thermally emitting plasma. In the thin target case, the collisional energy transfer from nonthermal electrons suffices only if the power law electron spectrum is extrapolated below 10 keV or the ambient plasma density exceeds 4 x 10 to the 10th powercc.

Descriptive Note:

Rept. for Jan-Apr 1972

Supplementary Note:

Prepared in cooperation with California Univ., San Diego, La Jolla. DOI: 10.21236/AD0753393

Pages:

0021

Identifiers:

Subject Categories:

Communities Of Interest:

Modernization Areas:

Distribution Statement:

Approved for public release; distribution is unlimited.

Contract Number:

F04701-72-C-0073

Contract Number 2:

NAS-5-11081

File Size:

0.68MB