Interferometric stellar oscillation spectrometry

Details Interferometric stellar oscillation spectrometry Interferometric stellar oscillation spectrometry

Jan 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986spie..627...27r&link_type=abstract

IN: Instrumentation in astronomy VI; Proceedings of the Meeting, Tucson, AZ, Mar. 4-8, 1986. Part 1 (A87-36376 15-35). Bellingha

Astronomy and Astrophysics

Astronomy

3

Astronomical Spectroscopy, Fabry-Perot Interferometers, Michelson Interferometers, Power Spectra, Stellar Oscillations, Comparison, Radial Velocity, Stellar Spectra, Variable Stars

Scientific paper

The measurement of radial velocity curves for ultrashort period variable stars and the search for solar-type stellar oscillations are undertaken by Fabry-Perot and Michelson interferometric stellar oscillation spectrometers. The two instruments are noted to be intrinsically stable at the 1 m/sec level; the Michelson instrument is in addition capable of a photon-shot-noise-limited sensitivity of better than 1 m/sec for the case of bright stars. Although the normal mode of operation of the Fabry-Perot instrument yields only positional information, it can be used as a scanning spectrometer for very rapid, accurate, time-resolved line profile information.

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