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Sweden's solar and stellar telescopes on La Palma

✍ Scribed by Wyller Arne A.; Scharmer Göran B.

Publisher
Elsevier Science
Year
1985
Tongue
English
Weight
925 KB
Volume
28
Category
Article
ISSN
0083-6656

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✍ Henrik Lundstedt; Anders Johannesson; Göran Scharmer; Jan Olof Stenflo; Ulf Kuso 📂 Article 📅 1991 🏛 Springer 🌐 English ⚖ 968 KB

A high-resolution videomagnetograph that records the images of opposite circular polarization simultaneously has been constructed for the Swedish vacuum solar telescope at La Palma. Magnetograms are obtained by off-line integration of bursts consisting of typically 50 frames of 20 ms exposures, with