Optical interstellar absorption lines toward 29 stars

Details Optical interstellar absorption lines toward 29 stars Optical interstellar absorption lines toward 29 stars

Nov 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apjs...56..315h&link_type=abstract

Astrophysical Journal Supplement Series (ISSN 0067-0049), vol. 56, Nov. 1984, p. 315-323.

Astronomy and Astrophysics

Astrophysics

38

Absorption Spectra, Abundance, Astronomical Spectroscopy, Interstellar Matter, Ultraviolet Spectra, Lyman Spectra, Radial Velocity

Scientific paper

Observations of optical interstellar absorption lines of Ti II, Ca II, and/or Na I acquired at an instrumental resolution typically of 5.6 km/s are reported for 29 stars. The data were recorded primarily with a Digicon detector and achieve 2 sigma detection limits generally near an equivalent width of 1 mA. The primary purpose of the observations is, in combination with previously published data, to provide a comprehensive, high-sensitivity survey of Ti II, Ca II, and Na I absorption at all velocities, toward 41 stars for which a correspondingly complete survey of certain ultraviolet interstellar lines also is available. New high-velocity optical interstellar lines at /v(LSR)/ greater than about 25 km/s are found toward four of the 29 stars.

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