Equivalent widths and narrow-band photometry of three stellar lines

Details Equivalent widths and narrow-band photometry of three stellar lines Equivalent widths and narrow-band photometry of three stellar lines

Aug 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979pasp...91..465m&link_type=abstract

Astronomical Society of the Pacific, Publications, vol. 91, Aug.-Sept. 1979, p. 465-470.

Astronomy and Astrophysics

Astrophysics

8

H Lines, Oxygen Spectra, Spectral Line Width, Stellar Spectrophotometry, Astronomical Catalogs, Bandwidth, Emission Spectra, H Alpha Line, H Beta Line

Scientific paper

Equivalent widths of the H-alpha, H-beta and 7774-A O I lines obtained from Michelson-Fourier spectra for 43 stars of types O6 to G2 are compared with narrow-band photometry corresponding to those spectral features. The results indicate that narrow-band photometry of stellar lines can be applied to fainter stars than can Michelson-Fourier spectroscopy, but at the expense of losing some astrophysical information, and that the internal photometric errors are low. It is concluded that narrow-band photometry is a natural choice for deriving physical parameters.

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