Rotational velocities of F dwarfs; application of the Fourier-Bessel transformation method.

Details Rotational velocities of F dwarfs; application of the Fourier-Bessel transformation method. Rotational velocities of F dwarfs; application of the Fourier-Bessel transformation method.

Sep 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996a%26as..118..545g&link_type=abstract

Astronomy and Astrophysics Supplement, v.118, p.545-555

Astronomy and Astrophysics

Astrophysics

16

Line: Profiles, Stars: Rotation, Techniques: Spectroscopic

Scientific paper

Projected rotational velocities are presented for 178 bright dwarf stars (V<7) with spectral types in the range A8 till G2. These rotational velocities have been determined by Fourier-Bessel transformation of the line profiles of six Fe I absorption lines in a 50 A wide range centered on 6250A. Rotational velocities of stars with suspected velocities of more than 40km/s were also determined by fitting the whole spectral range with a profile of a slowly rotating star of the same spectral type that has been convolved with a rotation profile. The agreement between the results obtained with these two methods is very good.

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