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A Survey of the Yellow-Red Interstellar Diffuse Spectrum Lines

  • D. McNally (a1), M. Ashfield (a1), D.W.T. Baines (a1), S. Fossey (a1), P.C.T. Rees (a1), W. B. Somerville (a1) and D.C.B. Whittet (a2)...

Extract

A survey of about 100 lines of sight was made using the coudé auxiliary telescope and the coudé spectrograph of the Shane 3m telescope of the Lick Observatory. the data acquisition required 7 observing seasons. the spectra were recorded photographically at 17Ao/mm using a Varo tube intensifier. Each plate was separately calibrated for intensity and wavelength. the plates were measured using the PDS microdensitometer of the Royal Greenwich Observatory, Herstmonceux, and that data reduced on STARLINK using procedures developed by D.W.T. Baines. Care was taken to treat all photographic material in a consistent manner throughout the duration of the survey. the reduced data may therefore be considered self-consistent. the emulsion types used were (principally) Kodak IIIaF and (more rarely) 103aD.

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References

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Herbig, G. H., 1975, Astrophys. J. 196, 129.

A Survey of the Yellow-Red Interstellar Diffuse Spectrum Lines

  • D. McNally (a1), M. Ashfield (a1), D.W.T. Baines (a1), S. Fossey (a1), P.C.T. Rees (a1), W. B. Somerville (a1) and D.C.B. Whittet (a2)...

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