Observations of interstellar titanium toward 47 stars

Details Observations of interstellar titanium toward 47 stars Observations of interstellar titanium toward 47 stars

Sep 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976apj...208l..95s&link_type=abstract

Astrophysical Journal, vol. 208, Sept. 1, 1976, pt. 2, p. L95-L98.

Astronomy and Astrophysics

Astrophysics

25

Astronomical Spectroscopy, Interstellar Matter, Line Spectra, Titanium, Abundance, Calcium, Electron Density (Concentration), Electrophotometers

Scientific paper

Results are presented from photoelectric scans of the interstellar 3384-A line of Ti II obtained at a resolution of 3.7 km/s for 47 stars. Although the depletion of titanium from the interstellar gas is large and highly variable, its ratio to the depletion of interstellar calcium is relatively constant; titanium is less depleted than calcium by a factor of about four. A method for determining approximate electron densities from the Ca II and Ti II column densities is applied to 51 interstellar clouds.

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