Hostname: page-component-78c5997874-fbnjt Total loading time: 0 Render date: 2024-11-03T01:16:10.435Z Has data issue: false hasContentIssue false
  • English
  • Français

Recent High Resolution X-Ray Spectra of the Sun

Published online by Cambridge University Press:  12 April 2016

J. H. Parkinson ,
K. Evans  and
K. A. Pounds
J. H. Parkinson
Affiliation:
Dept. of Physics, University of Leicester, Leicester, England
K. Evans
Affiliation:
Dept. of Physics, University of Leicester, Leicester, England
K. A. Pounds
Affiliation:
Dept. of Physics, University of Leicester, Leicester, England

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

New results are presented from high resolution Bragg crystal spectrometers flown in late 1970 on two Skylark rockets. The first instrument, launched on 24 November 1970 at 22 13 UT from Woomera, South Australia, contained two crystal spectrometers, each with an effective area of 50 cm2 and field collimation to 3’ FWHM. This instrument obtained the X-ray spectrum of the quiet corona in the wavelength range 5–14 Å. The second instrument was launched on 6 December 1970 at 11 13 UT from Sardinia, Italy, and contained four crystals of 6 cm2, each collimated to 4’ FWHM. This instrument was pointed at a non-flaring active region near N20 W40(McMath region 11060), and obtained an X-ray spectrum between 5 and 23 Å. This first use of a collimator to limit the field of view has considerably increased the spectral clarity compared with earlier observations by excluding the contributions of other active regions.

Type
Section IV / The Solar Soft X-Ray Spectrum
Information
International Astronomical Union Colloquium , Volume 14: Special Issue: Ultraviolet and X-Ray Spectroscopy of Astrophysical and Laboratory Plasmas , November 1972 , pp. 740 - 741
Copyright
Copyright © Reidel 1972

References

Batstone, R. M., Evans, K., Parkinson, J. H., and Pounds, K. A.: 1970, Solar Phys. 13, 389.CrossRefGoogle Scholar
Beigman, I. L. and Vainshtein, L. A.: 1971, Soviet Astron. 14, 825.Google Scholar
Dalgarno, A. and Parkinson, E. M.: 1967,Proc. Phys. Soc. A 301, 253.Google Scholar
Evans, K. and Pounds, K. A.: 1968, Astrophys. J. 152, 319.CrossRefGoogle Scholar
Parkinson, J. H.: 1971, Nature Phys. Sci. 233, 44.CrossRefGoogle Scholar
Pottasch, S. R.: 1967, Bull. Astron. Inst. Neth. 19, 113.Google Scholar