Ultra-High Observations of CAK Line Variations in the Beta-Pictoris Disc

Details Ultra-High Observations of CAK Line Variations in the Beta-Pictoris Disc Ultra-High Observations of CAK Line Variations in the Beta-Pictoris Disc

Feb 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994mnras.266l..65c&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Vol. 266, NO. 4/FEB15, P. L65, 1994

Astronomy and Astrophysics

Astronomy

27

Line: Profiles - Circumstellar Matter - Stars: Individual: Β Pic

Scientific paper

We present observations of the β Pictoris circumstellar Ca II K line, obtained with the new Ultra-High-Resolution facility (UHRF) at the Anglo-Australian Telescope. The resolving power was R ≳ 900000, and these data therefore comprise the highest resolution observations yet obtained of this object. Observations were obtained on three nights in 1993 (May 11, August 26 and August 29), and significant temporal variability was observed, including previously unobserved changes in the profile of the main circumstellar component.

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