Characterization of narrow band filters for infrared astronomy – The Br gamma and H-2 (f)ilters

Year: 1998

Authors: Vanzi L., Gennari S., Ciofini M., Testi L.

Autors Affiliation: Università di Firenze, Dipartimento di Astronomia e Scienza dello Spazio, Largo E. Fermi 5, 50125 Firenze, Italy;
Osservatorio Astrofisico di Arcetri, Largo E. Fermi 5, 50125 Firenze, Italy; Istituto Nazionale di Ottica, Largo E. Fermi 6, 50125 Firenze, Italy

Abstract: We present a characterization of two narrow band filters commonly used in Infrared Astronomy. Our study mainly quantifies the effect of temperature and tilt angle on the central wavelength and width of the transmission bands of such filters. This allows to evaluate some important effects that must be taken into account to have good quality astronomical images. Effects as the limitation of the field of view and the presence of OH sky lines in the final image are quantified.

Journal/Review: EXPERIMENTAL ASTRONOMY (PRINT)

Volume: 8 (2)      Pages from: 177  to: 186

KeyWords: Imaging; Infrared; Narrow band filters
DOI: 10.1023/A:1007989303589

Citations: 4
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