Fluorescent K I 7699 A emission from circumstellar shells of red giants: Evidence for highly asymmetric winds

Details Fluorescent K I 7699 A emission from circumstellar shells of red giants: Evidence for highly asymmetric winds Fluorescent K I 7699 A emission from circumstellar shells of red giants: Evidence for highly asymmetric winds

Apr 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994apj...425l.101p&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 425, no. 2, p. L101-L104

Astronomy and Astrophysics

Astrophysics

29

Fluorescence, Late Stars, Potassium, Red Giant Stars, Stellar Envelopes, Stellar Winds, Mira Variables, Semiregular Variable Stars, Spectrographs, Spectroscopy

Scientific paper

Potassium atoms in the circumstellar shells of R Aql, V Hya, g Her, and
R Leo are detected through fluorescent emission at 7699 A at angular
distances of up to several seconds of arc from the star. As traced by
the 7699 A emission, the shells are highly asymmetric.

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