Unveiling the multiple periodicities of the cataclysmic variable LS Cam

Abstract

$TESS$ photometric data of LS~Cam from sectors 19, 20 and 26 are analysed. The obtained power spectra from sectors 19 and 20 show multiple periodicities - orbital variations ($P_{orb}=0.14237$ days), slightly fluctuating superorbital variation ($P_{so}\approx 4.03$ days) and permanent negative superhump ($P_{-sh}=0.1375$ days). In sector 26 an additional positive superhump ($P_{+sh}=0.155$ days) is present. Using relations from literature, the mass ratio and the masses of the two components are estimated to be $q=0.24$, $M_1=1.26M_{\odot }$, and $M_2=0.30M_{\odot }$ respectively.

5 pages, Bulgarian Astron. Journal submitted

Cited by in corpus (2)

• A Catalogue of Potential Post Common Envelope Binaries
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