Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1994
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994rmxaa..28..153s&link_type=abstract
Revista Mexicana de Astronomia y Astrofisica, 28, 153
Astronomy and Astrophysics
Astronomy
2
Scientific paper
RESUMEN Los espectros digitalizados de prisma objetivo pueden ser usa dos para Ia eterminaci6n de posiciones astrometricas, de velocidades radiales, magnitudes y tambien para la determinaci6n de intensidades de lfneas espectrales. De estas ultimas se pueden obtener tipos espectrales, clases de luminosidad, y un fndice de metalicidad. Eso abre la posibilidad de una evaluaci6n totalmente automatizada de placas que contienen datos para un gran numero de estrellas. El respectivo sistema ha sido desarrollado y probado para una cierta combinaci6n de telescopio, prisma, y filtro dando una dispersi6n de 83 A mm -1 en la regi6n de HS en una ventana espectral de 150 A de ancho. ABSTRACT 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. Key words: METhODS-DATA ANALYSIS - TECHNIQUES - SPECTROSCOPIC
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