Search for exoplanets through pulsation timing of Delta Scuti stars in the first Plato field.

The PLATO mission to be launched in 2026 by ESA is a curial mission for the development of Exoplanetary studies. Prior study of the list of candidate stars are important to identify the most important field of view to be selected. Out of many methods of exoplanetary study the Pulsation Timing method which takes into account the light time travel effect (LTTE) is a very less studied method. Here in the project there is an application of the Pulsation timing method to analyze delta Scuti variable stars for the phase shifts of its fundamental pulsation modes as a function of time. All the delta Scuti stars in the first Plato field has been analyzed and the list of candidates narrowed down to two stars (TIC 349972148 and TIC 308396022). Using VARTOOLs Light Curve analysis program the TESS light curve of the candidates are filtered and analyzed for variation. Possible variations may indicate the presence of an unseen component which may be an exoplanet.