Second order rotational effect on the oscillation frequencies of V1162 Ori |
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| Authors: | Ziyad Matalgah H K?rb?y?k R Civelek N K?z?lo?lu |
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| Institution: | (1) Physics Department, Middle East Technical University, Ankara, 06531, Turkey |
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| Abstract: | V1162 is a δ-Scuti type variable star for which a rotational velocity of V
sini=46±4 km s−1 has been observed. The star has been modelled according to its observed parameters and oscillation frequencies. The results
obtained by approximating rotation to the first order have been compared with the ones provided by new calculations that include
rotation up to the second order. We found that second order rotation term should be included in frequency calculations for
comparatively high rotation speeds. |
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| Keywords: | Rotation V1162 Oscillations Variable stars Stellar evolution |
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