2001A&A...370..496K


C.D.S. - SIMBAD4 rel 1.7 - 2021.02.26CET20:41:26

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

The radial pulsation of AI Aurigae.

KISS L.L. and SKIFF B.A.

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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Number of rows : 5

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 HD 46159 * 06 33 03.4577849470 +29 24 23.640038889   9.06 8.09     G8III 10 0
2 V* AI Aur LP* 06 33 49.5840053629 +30 15 18.228329069   10.71 9.38     M5III 5 0
3 HD 259662 * 06 34 44.0054341546 +29 57 44.857788851   10.62 9.54     K0III 3 0
4 * 40 Com LP* 13 06 22.6024454119 +22 36 58.261906251 8.82 7.22 5.61 3.63 1.84 M5III: 103 0
5 V* V818 Her LP* 17 18 41.3769694578 +43 36 32.951437795   9.93 8.67     ~ 16 0

    Equat.    Gal    SGal    Ecl

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