Browsing by Author "Ishihara, Akika"
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Near-infrared time-series photometry of six fields in the young open cluster IC 2391
Koen, Chris; Ishihara, Akika (Oxford University Press, 2006)Fields containing targets of spectral types later than M5 were monitored in JHKs for about 7 h each. None of the targets showed variability at levels exceeding 0.02 (or smaller, in some cases). Seven new variable stars ...