Balloon-borne ultraviolet solar telescope and high resolution echelle-spectrograph - Instrumentation and first results

Details Balloon-borne ultraviolet solar telescope and high resolution echelle-spectrograph - Instrumentation and first results Balloon-borne ultraviolet solar telescope and high resolution echelle-spectrograph - Instrumentation and first results

Oct 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985ap%26ss.115..227s&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 115, no. 2, Oct. 1985, p. 227-241.

Astronomy and Astrophysics

Astrophysics

6

Astronomical Spectroscopy, Balloon-Borne Instruments, Solar Atmosphere, Solar Instruments, Ultraviolet Telescopes, Data Reduction, Solar Spectra, Temperature Control

Scientific paper

A description of LPSP balloon-borne telescope-spectrograph combination is given. The payload comprises a one-axis stabilized platform carrying a two-axis equatorial pointing system; the instrumentation directed towards the sun is a 300 mm telescope coupled with an echelle spectrograph and a slit-jaw camera. The scientific objective of the experimental setup is to observe spatial, spectral, and temporal variations of fine structures of the solar atmosphere, using balloon ultraviolet windows between 190 and 300 nm, with very high angular and spectral resolutions (0.5 arcsec and 1 pm). In the configuration of the first flight which successfully took place on October 1, 1982 from Aire-sur-l'Adour (Landes), many stigmatic spectra of the sun were recorded in the 190-213 and 272-293 nm ranges, with an angular resolution of 4 arcsec and a spectral resolution of 1.5 to 2 pm.

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