A search for violet-displaced cores in the optical spectrum of Mira

Details A search for violet-displaced cores in the optical spectrum of Mira A search for violet-displaced cores in the optical spectrum of Mira

Aug 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981pasp...93..453w&link_type=abstract

Astronomical Society of the Pacific, Publications, vol. 93, Aug.-Sept. 1981, p. 453-455.

Astronomy and Astrophysics

Astronomy

5

Binary Stars, Mira Variables, Omicron Ceti Star, Stellar Envelopes, Stellar Spectra, Stellar Spectrophotometry, Variable Stars, Absorption Spectra, Cores, Emission Spectra, Line Spectra, Radial Velocity, Resonance Lines, Stellar Motions

Scientific paper

A search for circumstellar lines in the spectrum of Mira from 3900 to 8700 A reveals only the sodium D lines and possibly the Ca II K line to be present. As suggested by Yamashita and Maehara (1978) the commonly seen circumstellar lines in red giants arising from various neutral species as well as Ca II and Sr II are weakened by ionization by the hot companion of Mira.

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