Poster Open Access

Asteroseismology of SZ Lyn using very high time resolution photometry in BVR bands.

Janaka Adassuriya; Chandana Jayaratne; Shashikiran Ganesh

We report new photometric results based on very high time resolution observations in
BVR bands of SZ Lyn. The photometric observations were carried out using the 50 cm CDK
reflector at Mount Abu Observatory, India, on six nights. WASP and AAVSO data of SZ Lyn
were also considered. The observation was primarily attempted to determine the oscillation
frequencies beyond the well established main oscillation frequency of 8.295 cd-1. The light
curves were analyzed for frequencies from 5 to 100 cd-1 with a frequency step size of the order
10-5 cd-1. 7 frequencies were recovered in the light curves. The amplitudes and phases of the
frequencies were also determined for mode identification. The comparison of the theoretical
and observational amplitude ratios determined the fundamental frequency, 8.295 cd-1, as l= 0 mode. No higher order oscillation modes were found except the 6 harmonics of the fundamental frequency for SZ Lyn.

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