Automated analysis of slitless spectra - Stars

Details Automated analysis of slitless spectra - Stars Automated analysis of slitless spectra - Stars

Sep 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991mnras.252..163b&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 252, Sept. 1, 1991, p. 163-170. Research supported by N

Astronomy and Astrophysics

Astronomy

5

Astronomical Photometry, Star Distribution, Stellar Spectra, Data Reduction, Spectral Methods, Stellar Luminosity, Templates

Scientific paper

The stellar spectral classification that can be achieved with very low-dispersion spectroscopy is examined. Several methods are applied to slitless spectra taken from the automated grens plates analysis project undertaken at Laval University. It is suggested that an accuracy in B - V of about 0.1 mag at B approximating 19 for stars bluer than B - V below 0.8 mag or better for redder stars can be obtained by probing the continuum. Results from DDO-like photometry show that grens data behave similarly to the Gunn and Stryker library of standard stars for many indices. Results of multivariate analysis are coherent with the stellar spectral classification and provide a powerful and objective means of cataloging spectra of the same spectral shape.

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