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Physical Sciences and Mathematics Commons

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Astrophysics and Astronomy

Gettysburg College

Series

1972

Articles 1 - 1 of 1

Full-Text Articles in Physical Sciences and Mathematics

Interferometric Studies Of Interstellar Calcium Lines, Laurence A. Marschall, L. M. Hobbs Apr 1972

Interferometric Studies Of Interstellar Calcium Lines, Laurence A. Marschall, L. M. Hobbs

Physics and Astronomy Faculty Publications

Interferometric, photoelectric scans of the interstellar calcium K-lines in the spectra of 65 stars are presented. The scans were obtained with a PEPSIOS spectrometer having a passband with a full half-intensity width of 1.0 kms(-1) or 0.013A. The fivefold improvement in resolution over that used by Adams reveals numerous line components which correspond very well to those of the interstellar sodium lines, apart from frequent differences in relative intensities.