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A Survey of the Yellow-Red Interstellar Diffuse Spectrum Lines

Published online by Cambridge University Press:  04 August 2017

D. McNally ,
M. Ashfield ,
D.W.T. Baines ,
S. Fossey ,
P.C.T. Rees ,
W. B. Somerville  and
D.C.B. Whittet
D. McNally
Affiliation:
University of London Observatory Mill Hill Park London NW7 2QS, U.K.
M. Ashfield
Affiliation:
University of London Observatory Mill Hill Park London NW7 2QS, U.K.
D.W.T. Baines
Affiliation:
University of London Observatory Mill Hill Park London NW7 2QS, U.K.
S. Fossey
Affiliation:
University of London Observatory Mill Hill Park London NW7 2QS, U.K.
P.C.T. Rees
Affiliation:
University of London Observatory Mill Hill Park London NW7 2QS, U.K.
W. B. Somerville
Affiliation:
University of London Observatory Mill Hill Park London NW7 2QS, U.K.
D.C.B. Whittet
Affiliation:
*Lancashire Polytechnic, Corporation Street, Preston, U.K.

Extract

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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.

Type
Interstellar Medium
Information
Symposium - International Astronomical Union , Volume 120: Astrochemistry , 1987 , pp. 321 - 322
Copyright
Copyright © Reidel 1987 

References

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