Document Type
Article
Publication Date
4-1972
Department 1
Physics
Abstract
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.
Copyright Note
This is the publisher's version of the work. This publication appears in Gettysburg College's institutional repository by permission of the copyright owner for personal use, not for redistribution.
DOI
10.1086/151400
Recommended Citation
Marschall, Laurence A., and L.M. Hobbs. Interferometric Studies of Interstellar Calcium Lines. The Astrophysical Journal. (April 1972) 173(1):43-62.
Required Publisher's Statement
Original version available from the publisher at: http://iopscience.iop.org/0004-637X