SIMBAD references

1996PASP..108..847P - Publ. Astron. Soc. Pac., 108, 847-850 (1996/October-0)

Pulsation mode switching in the small-amplitude red variable W Bootis.

PERCY J.R. and DESJARDINS A.

Abstract (from CDS):

W Bootis, a small-amplitude (0.2 mag in V) red variable, pulsated with a period of 25 days from 1966 (or earlier) to 1990. From 1991 to 1994, its period was about 50 days, except in 1993 when its period was about 35 days superimposed on a long-term (> 200 days) variation. There was no evidence for the 25-day period after 1990. The most likely explanation is that the pulsation mode changed, possibly from 4th to 2nd overtone.

Abstract Copyright: ∼

Journal keyword(s): Stars

Simbad objects: 5

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