FlareFront: TESS insights into the Dwarf Nova ASASSN-19si

Cataclysmic Variable (CV) systems are amongst some of the most scientifically compelling phenomena in the known universe. From dramatic outbursts to intricate accretion disk dynamics, CVs offer valuable insights into astrophysical processes, including novae. ASASSN-19si, a WZ Sge-type dwarf nova located at 19:27:29.810 +33:03:05.22 in the constellation Vulpecula, presents an exceptional case study. Utilizing data from the Transient Exoplanet Survey Satellite (TESS), with its short cadence and high-precision photometry, we probe the underlying mechanisms of outburst events and identify multiple periodicities in the light curve. Through periodogram analysis, we have uncovered two significant period peaks that suggest the presence of a beat-type frequency, providing further insight into the complex interaction between the orbital motion and disk activity. These findings not only contribute to our understanding of the outburst behavior in WZ Sge-type systems but also highlight the precision of TESS data in capturing subtle, multi-periodic variations in CV systems.