UHRF observations of the interstellar medium towards two stars in the Galactic Halo.

Details UHRF observations of the interstellar medium towards two stars in the Galactic Halo. UHRF observations of the interstellar medium towards two stars in the Galactic Halo.

Oct 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996a%26a...314..609r&link_type=abstract

Astronomy and Astrophysics, v.314, p.609-614

Astronomy and Astrophysics

Astrophysics

17

Ism: Kinematics And Dynamics, Stars: Individual: Hd 18100, Hd 203664, Ism: Atoms, Galaxy: Halo

Scientific paper

We present interstellar Na I and Ca II spectra of the halo stars HD 18100 and HD 203664, obtained with the Ultra-High Resolution Facility on the Anglo-Australian Telescope. These observations have spectral resolutions R=~210,000 and signal-to-noise ratios in the range 20-75. We find multiple absorbing components along both sightlines and resolve the velocity structure within the high velocity cloud toward HD 203664. We discuss these spectra and their use in future Hubble Space Telescope studies of HD 18100 and HD 203664.

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