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

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

We identify a previously undetected periodicity at a frequency of 49.08 ± 0.01 days ^−1 (period of 29.34 ± 0.01 minutes) during a super-outburst of V844 Her observed by TESS. V844 Her is an SU UMa type cataclysmic variable with an orbital period of 78.69 minutes, near the period minimum. The frequen...

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Bibliographic Details
Main Authors:	Anousha Greiveldinger, Peter Garnavich, Colin Littlefield, Mark R. Kennedy, Jules P. Halpern, John R. Thorstensen, Paula Szkody, Arto Oksanen, Rebecca S. Boyle
Format:	Article
Language:	English
Published:	IOP Publishing 2023-01-01
Series:	The Astrophysical Journal
Subjects:	Cataclysmic variable stars Stellar oscillations White dwarf stars X-ray stars
Online Access:	https://doi.org/10.3847/1538-4357/acf21b

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