The determination of the zero point of the wavelength scale on stellar spectrograms

Details The determination of the zero point of the wavelength scale on stellar spectrograms The determination of the zero point of the wavelength scale on stellar spectrograms

Feb 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989azh....66...50g&link_type=abstract

Astronomicheskii Zhurnal (ISSN 0004-6299), vol. 66, Jan.-Feb. 1989, p. 50-57. In Russian.

Astronomy and Astrophysics

Astronomy

1

Spectrograms, Stellar Spectra, Ultraviolet Astronomy, Wavelengths, Astronomical Catalogs, Early Stars, Magnesium, Metal Ions, Near Ultraviolet Radiation

Scientific paper

A novel method for determining the zero point of the wavelength scale (lambda0) on low-spectral-resolution spectrograms obtained with an objective plasma is presented. The method was applied to a group of 100 stars belonging to the B-G spectral classes. Near-UV spectrograms of these stars were obtained by the Orion-2 space observatory. Equivalent widths were obtained for the resonance doublet of Mg II 2800 A in the spectra of the stars studied.

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