Recalibration of Mount Wilson Doppler measurements (Research note)

Details Recalibration of Mount Wilson Doppler measurements (Research note) Recalibration of Mount Wilson Doppler measurements (Research note)

Jan 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984soph...90..199s&link_type=abstract

Solar Physics (ISSN 0038-0938), vol. 90, Jan. 1984, p. 199-202.

Physics

33

Calibrating, Doppler Effect, Solar Velocity, Velocity Measurement, Line Spectra, Solar Spectra, Telescopes

Scientific paper

The dispersion calibration of spectroscopic velocity measurements made with the 150-ft tower telescope at Mt. Wilson Observatory is revised upward by 0.55 percent on the basis of observations of the six lines of comparable shape and equivalent width nearest the 5250.2-A line of Fe-I used in the solar Doppler rate measurements. The dispersion results are presented in a graph, and the superiority of the Kitt Peak wavelength tables (Pierce and Breckenridge, 1973) over those of Moore et al. (1966) is demonstrated. As a result of the recalibration, all recent spectroscopic velocities from this telescope must be revised downward by 0.55 percent.

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