Evolution of the circumstellar shell of pleione (1981 94)

Details Evolution of the circumstellar shell of pleione (1981 94) Evolution of the circumstellar shell of pleione (1981 94)

Feb 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995ap%26ss.224..427b&link_type=abstract

Astrophysics and Space Science, Volume 224, Issue 1-2, pp. 427-428

Astronomy and Astrophysics

Astrophysics

2

Stars : Be, Stars: Individual : Pleione

Scientific paper

Three spectra of Pleione (1981, 1987 88, 1994), obtained in the blue wavelength range, show strong long-term changes which indicate that the surrounding shell, first rather cool and close to the central star, then expands gradually in the equatorial plane of the star and towards the poles. From 1981 to 1987 88, the spectrum of Pleione is that of the central star, with a cool shell which globally mimics a late-type star. The year 1994 is marked by a pure and stronger Be spectrum, with no shell line.

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