A new statistical method to derive radial velocity shifts from stellar spectra

Details A new statistical method to derive radial velocity shifts from stellar spectra A new statistical method to derive radial velocity shifts from stellar spectra

May 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987a%26a...178..307d&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 178, no. 1-2, May 1987, p. 307-309.

Astronomy and Astrophysics

Astrophysics

1

Radial Velocity, Statistical Analysis, Stellar Spectra, Cross Correlation, Hot Stars, Shift, Wavelengths

Scientific paper

A comparison method for determining radial velocities of binary components is developed which is based on the sum of the absolute values of the differences of the densities or intensities at shifted wavelengths. The wavelength shift is determined from the minimum of the resulting curve. The method can treat major portions of the spectra simultaneously, and can deal with noisy data. Thus, it is especially useful for the spectra of hot luminous stars.

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