Statistics
Scientific paper
Dec 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982apj...263..759m&link_type=abstract
Astrophysical Journal, Part 1, vol. 263, Dec. 15, 1982, p. 759-776.
Statistics
4
Early Stars, Fabry-Perot Interferometers, Helium, Line Spectra, Stellar Spectra, Computer Programs, Infrared Spectra, Scanning, Tables (Data), Wiener Filtering
Scientific paper
Representative profiles of He I 10830 A in 65 early-type (O6-A1) stars over a wide range of luminosity are presented. The atlas scans were obtained using the Vaughan Fabry-Perot interferometer on the C. E. K. Mees 0.6 m and KPNO 0.9 m telescopes and usually cover a range of plus or minus 15 A at 1 A resolution with sampling distances between 0.5 A and 2 A depending on the photometer integration time required to reach reasonable Poisson counting statistics. The majority of the scans show very shallow, broad features which do not agree with plane-parallel NLTE model atmosphere calculations of the 10830 line by Auer and Mihalas (1972). Difficulties connected with previous theoretical studies of this line are briefly discussed, and suggestions for possible future modifications to the theory are made.
Frank Zoe A.
Meisel David D.
Packard M. L.
Saunders B. A.
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