SIMBAD references

2001A&A...370..496K - Astronomy and Astrophysics, volume 370, 496-502 (2001/5-1)

The radial pulsation of AI Aurigae.


Abstract (from CDS):

We present an analysis of eleven years of Stroemgren by photometry of the red semiregular variable star AI Aurigae. An early period determination of 63.9 days is confirmed by the long-term light curve behaviour. The light curve shows semi-regular changes with a mean period of 65 days reaching an amplitude of 0.6mag in some cycles. The b-y colour changes perfectly parallel the V light curve, suggesting radial oscillation to be the main reason for the observed variations. We estimate the main characteristics of the star (mass, radius, effective temperature) that suggest radial pulsation in fundamental or first overtone mode.

Abstract Copyright:

Journal keyword(s): stars: pulsation - stars: AGB - stars: individual: AI Aur

VizieR on-line data: <Available at CDS (J/A+A/370/496): table1.dat>

Simbad objects: 5

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