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eJAAVSO

ULTRA-SHORT VARIABILITY IN CH CYGNI

 

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Mario E. Motta

Andrea Motta

806 Lowell Street

Lynnfield, MA 01940

 

Presented at the 88th Annual Meeting of the AAVSO, October 29, 1999; revised August 2000

 

Abstract

 

CH Cygni is a star system well known for multiple coexisting variable periods on widely-varying time scales. This paper focuses on a little-known aspect of its variability, on a time scale of several minutes. Data are presented that show CH Cygni varies by 0.15 magnitude over a short time span-3 to 8 minutes­-and this variability is most pronounced in the blue part of the spectrum.

Link to ADS abstract, article and citation information

 
 
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