The design, construction and performance of a large H alpha and /N II/ interference filter for the SRC 48-inch Schmidt

Details The design, construction and performance of a large H alpha and /N II/ interference filter for the SRC 48-inch Schmidt The design, construction and performance of a large H alpha and /N II/ interference filter for the SRC 48-inch Schmidt

Feb 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976ap%26ss..39..437e&link_type=abstract

Astrophysics and Space Science, vol. 39, Feb. 1976, p. 437-445. Research sponsored by the Science Research Council.

Astronomy and Astrophysics

Astrophysics

4

Bandpass Filters, H Alpha Line, Optical Filters, Telescopes, Imaging Techniques, Line Shape, Spectral Line Width

Scientific paper

The design, construction and performance of a 15-in. square mosaic interference filter is described. This is designed to improve the sensitivity of the SRC 48-in. Schmidt for the detection of gaseous nebulae in the light of H alpha and (N II) by approximately seven times. Its bandwidth with Kodak 098-04 emulsion is 105 angstroms but when combined with 103 aE emulsion the effective bandwidth is around 80 angstroms.

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