Astron. Astrophys. Suppl. Ser.
Volume 118, Number 3, September 1996
|Page(s)||545 - 555|
|Published online||15 September 1996|
Rotational velocities of F dwarfs; application of the Fourier-Bessel transformation method*
Astronomical Institute `Anton Pannekoek'/ CHEAF, Kruislaan 403, 1098 SJ, Amsterdam, The Netherlands
2 Physics Department, UAH, Huntsville, AL 35899, U.S.A.
Accepted: 30 January 1996
Projected rotational velocities are presented for 178 bright dwarf stars () 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 Å wide range centered on 6250 Å. Rotational velocities of stars with suspected velocities of more than 40 km/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.
Key words: line: profiles / stars: rotation / techniques: spectroscopic
© European Southern Observatory (ESO), 1996