Interstellar lines in the spectra of four stars

Details Interstellar lines in the spectra of four stars Interstellar lines in the spectra of four stars

Oct 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979pasp...91..690h&link_type=abstract

Astronomical Society of the Pacific, Publications, vol. 91, Oct.-Nov. 1979, p. 690-694.

Astronomy and Astrophysics

Astronomy

6

Absorption Spectra, Binary Stars, Interstellar Gas, Line Spectra, Stellar Spectra, Supergiant Stars, Calcium, D Lines, Early Stars, Gas Density, Interstellar Extinction, K Lines, Spectrum Analysis

Scientific paper

Observations of optical interstellar absorption lines arising from Na I, K I, and/or Ca II are reported in the spectra of HD 72127, Iota(1) Sco, 102 Her, and 6 Cas. Line components showing strikingly large Ca II/Na I ratios are found toward HD 72127 and are verified for 102 Her. The absorption toward Iota(1) Sco and 6 Cas illustrates features of the local galactic distribution of interstellar gas.

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