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HRTS Evidence for Rotation of Transition Region Temperature Spicules

Published online by Cambridge University Press:  12 April 2016

J.W. Cook ,
G.E. Brueckner ,
J.-D.F. Bartoe  and
D.G. Socker
J.W. Cook
Affiliation:
E.O. Hulburt Center for Space Research Naval Research Laboratory, Washington, DC 20375
G.E. Brueckner
Affiliation:
E.O. Hulburt Center for Space Research Naval Research Laboratory, Washington, DC 20375
J.-D.F. Bartoe
Affiliation:
E.O. Hulburt Center for Space Research Naval Research Laboratory, Washington, DC 20375
D.G. Socker
Affiliation:
E.O. Hulburt Center for Space Research Naval Research Laboratory, Washington, DC 20375

Extract

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The HRTS (High Resolution Telescope and Spectrograph) instrument is a high spectral (0.05 Å) and spatial (<1 arc sec) resolution spectrograph with a slit length of 900 arc sec on the solar disk (see Bartoe and Brueckner 1975, 1978). HRTS contains in addition a double grating, zero dispersion broadband spectroheliograph which images the spectrograph slit jaw plate (see Cook et al. 1983). The central wavelength is tunable by changing the grating geometry. Hα images are also photographed from the slit jaw plate image. HRTS has been flown four times as a rocket payload, and will fly in April 1985 as one of the solar experiments aboard Spacelab 2. The four rocket flights of the HRTS program have each been customized for a particular scientific objective. For the fourth flight, because the original hardware was utilized as the basis of the Spacelab HRTS, the opportunity was used to design and build a new rocket HRTS instrument specialized for observations at the solar limb. In this configuration the photographic speed was increased, a new curved slit was fabricated, and the spectroheliograph was modified for limb observations. The scientific observing program was a study of structure and short term temporal evolution at the limb, with a comparison of quiet and coronal hole areas.

Type
Session 1. Solar Astrophysics
Information
International Astronomical Union Colloquium , Volume 86: Eighth International Colloquium on Ultraviolet and X-ray Spectroscopy of Astrophysical and Laboratory Plasmas , 1984 , pp. 32 - 35
Copyright
Copyright © Naval Research Laboratory 1984. Publication courtesy of the Naval Research Laboratory, Washington, DC.

References

Bartoe, J.-D.F., and Brueckner, G.E. 1975, J. Opt. Soc. Am., 65, 13.CrossRefGoogle Scholar
Bartoe, J.-D.F., and Brueckner, G.E. 1978, in New Instrumentation for Space Astronomy, ed. Van der Hucht, K. and Vaiana, G.S. (Oxford: Pergamon), p. 81.Google Scholar
Bray, R.J., and Loughhead, R.E. 1974, The Solar Chromosphere (London: Chapman and Hall), pp. 58–60.Google Scholar
Cook, J.W., Brueckner, G.E., and Bartoe, J.-D.F. 1983, Ap. J. (Letters), 270, L89.CrossRefGoogle Scholar
Sterling, A.C., and Hollweg, J.V. 1984, Alfvenie Resonances on Solar Spicules, Ap. J., in press.CrossRefGoogle Scholar