A Microcomputer Controlled Fabry-Perot Spectrometer for the Visible

Details A Microcomputer Controlled Fabry-Perot Spectrometer for the Visible A Microcomputer Controlled Fabry-Perot Spectrometer for the Visible

Jun 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984pasp...96..496a&link_type=abstract

Publications of the Astronomical Society of the Pacific, Vol. 96, NO. 580, P. 496, 1984

Astronomy and Astrophysics

Astronomy

9

Scientific paper

A portable and microcomputer-controlled Fabry-Perot spectrometer used to obtain photoelectric line profiles of galactic and extragalactic H II regions is described. The etalon is of the piezoelectrically scanned type and is servo-stabilized by a capacitance micrometry technique (Hicks, Reay, and Scadden 1974). The detector is a photomultiplier with a GaAs photocathode. Control of the scanning and data acquisition are achieved with a HP-85 microcomputer. Spectral resolution is about 15,000 at Hα. The optical configuration of the collimator can be modified to adapt with an f/8 or f/15 telescope aperture ratio. The maximum field of view spectrometer on the Mount Megantic 1.60-meter telescope is 0.8 arc minute at f/8. Examples of observations are presented and briefly discussed.

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