Digitized objective prism spectra can be used to derive astrometric positions, radial velocities and magnitudes as well as the intensities of spectral lines. From the latter spectral types, luminosities, and a metal index can be derived. This opens up the possibility of a totally automatized evaluation of plates containing data for a large number of stars. A respective system has been developed and tested for a certain telescope-prism-filter combination yielding a dispersion of 83 A at H6 in a spectral window of 150 A width.
Revista Mexicana de Astronomia y Astrofisica
- Pub Date:
- October 1994
- METHODS: DATA ANALYSIS;
- TECHNIQUES: SPECTROSCOPIC