Angular diameters by the lunar occultation technique. VI. Limb darkening of alpha Tauri. (original) (raw)

ADS

;

• Jacoby, G. H. ;
• Joyce, R. R. ;
• Siegel, M. J. ;
• Wells, D. C.

Abstract

Fourteen angular diameter measurements of alpha Tauri at six wavelengths in the range 0.4-3.8 microns are reported. Lunar occulation data are presented and the relative intensity is plotted against milliseconds of arc. It is concluded that the data support an angular diameter variation with wavelength at least as strong as predicted by computations; corrected for limb-darkening, the value is 20.88 + or - 0.10. The wavelength dependence of the diameter confirms theoretical predictions for the wavelength dependence of limb darkening.

Publication:

The Astronomical Journal

Pub Date:

July 1982

DOI:

10.1086/113188

Bibcode:

1982AJ.....87.1044R

Keywords:

• Astrometry;
• Limb Darkening;
• Lunar Occultation;
• Stellar Occultation;
• Angular Distribution;
• Astronomical Photometry;
• Diameters;
• Electrophotometry;
• Error Analysis;
• H Alpha Line;
• Infrared Astronomy;
• Wavelengths;
• Astronomy;
• Diameters:K Giants;
• K Giants:Lunar Occultations