Sukanta Deb¹,S. K. Tiwari ², Harinder P. Singh¹, T. R. Seshadri ¹ and U. S. Chaubey ^2
1Department of Physics & Astrophysics, University of Delhi, Delhi 110007, India
²Aryabhatta Research Institute of Observational Sciences (ARIES), Manora Peak, Nainital 263129, India

Abstract. We present B band photometry of the delta Scuti star HD 40372 using the ARIES three channel fast photometer attached to the 104-cm Sampurnanand telescope in high-speed photometric mode. The star was observed for ~ 5 hours on December 13, 2008. Based on the high quality photometric data, we have done period analysis by various periodogram analysis techniques. The best estimate of the period is found to be ~ 0.067$ days. With this period and the other stellar parameters determined from uv by beta photometry available in the literature, we have calculated the Q value for the star. Comparison of this Q value with that determined from the model calculations shows that the star is pulsating in p₃ mode with l = 2.

Keywords: stars: variables: delta Scuti; stars: oscillation; instrumentation: photometers; techniques: photometric

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