Astronomy and Astrophysics – Astrophysics
Scientific paper
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.
Lemaire Philippe
Samain D.
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