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Re: AI CMi very bright > ASAS-3 data brings a confirmation of my observation of the post-AGB star AI > CMi in a **very** bright maximum: It was at V= 7.86 on May 10. > Lightcurves and comments on this one at: > http://ar.geocities.com/varsao/Curva_AI_CMi.htm > > Regards, > Sebastian. It would be meaningful to note that AI CMi is suggested to have an evolutionary stage close to proto-planetary nebulae (PPN). If this is the case, the bolometric luminosity of such an object is close to its maximum in its entire lifetime. It is thus noteworthy that if a real "brightening" occurs in addition to its baseline luminosity. It could be one of brightest pulsation maxima, but there may be a possibility that a more dramatic change (such as rho Cas mass-ejection episode) may be taking place. It would be worth observing spectroscopically to see whether there is an enhanced mass-loss. Regards, Taichi Kato
Return to the Powerful Daisaku Nogami
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