Combined HRTS-8 Sounding Rocket Observations and YOHKOH Soft X-ray Observations of NOAA Active Region 7260 at the Solar Limb

Details Combined HRTS-8 Sounding Rocket Observations and YOHKOH Soft X-ray Observations of NOAA Active Region 7260 at the Solar Limb Combined HRTS-8 Sounding Rocket Observations and YOHKOH Soft X-ray Observations of NOAA Active Region 7260 at the Solar Limb

Jul 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994kofu.symp..293k&link_type=abstract

In: Proceedings of Kofu Symposium, Kofu, Japan, Sept. 6-10, 1993, p.293-296.

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On 24 August 1992, the Naval Research Laboratory (NRL) High Resolution Telescope and Spectrograph (HRTS) was launched aboard a Black Brant sounding rocket from White Sands, New Mexico. During the flight, the instrument recorded a unique set of near ultraviolet slit spectra and 1550 A spectroheliograms of an active region at the solar limb. An extensive set of observations of this region were obtained with the Yohkoh Soft X-ray Telescope (SXT) near the time of the flight. The C IV spectroheliograms obtained during this flight are some of the highest resolution images of the solar transition region ever obtained. The spectra and spectroheliograms dramatically demonstrate the fundamental difference between coronal and chromospheric/transition-region plasmas at 700 km spatial scales. The cooler plasmas exhibit a great deal of dynamic, fine scale structure with significant flows or proper motion particularly in the transition zone loops. The coronal emission lines in the spectra! are relatively uniform and quiescent. The Yohkoh data during the period before and after the flight show a set of diffuse high temperature coronal loops with only minimal correspondence to the structures visible in the C IV spectroheliograms.

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