A Surprising Periodicity Detected During a Super-outburst of V844 Herculis by TESS

A. Greiveldinger, P. Garnavich, C. Littlefield +6

We identify a previously undetected periodicity at a frequency of 49.08$\pm$0.01 d${}^{-1}$ (period of 29.34$\pm$0.01 minutes) during a super-outburst of V844 Her observed by TESS. V…