The application of a Bessel transform to the determination of stellar rotational velocities

Details The application of a Bessel transform to the determination of stellar rotational velocities The application of a Bessel transform to the determination of stellar rotational velocities

Jan 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977ap%26ss..46...13d&link_type=abstract

Astrophysics and Space Science, vol. 46, Jan. 1977, p. 13-22.

Astronomy and Astrophysics

Astrophysics

10

Angular Velocity, Bessel Functions, Fourier Transformation, Line Shape, Stellar Rotation, Stellar Spectra, Doppler Effect, Linear Transformations, Spectral Line Width, Spectrum Analysis, Velocity Measurement

Scientific paper

A method for analyzing line profiles by means of a transform using Bessel functions is described. This yields the stellar rotational velocity to an accuracy of about + or - 1 km/s for rotational velocities greater than about 5 km/s, provided that rotation is the major source of line broadening. The theory of the method is a special case of a general theory of linear transforms in data analysis, which is outlined.

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