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arXiv · 2108.09060

ASASSN-V J205543.90+240033.5: another white dwarf pulsar?

Taichi Kato
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Abstract

I found that ASASSN-V J205543.90+240033.5 shows large-amplitude (1.2-1.4 mag) nearly sinusoidal variations with a period of 10.803(2) d and very short period variations with a period of 0.0068 d using Public Data Release of Zwicky Transient Facility observations. The only known object that shows a similar combination of nearly sinusoidal reflection variations and very short period, large-amplitude variations is the unique white dwarf pulsar AR Sco. ASASSN-V J205543.90+240033.5 appears to be very similar to AR Sco and observations at various wavelengths are desired.

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Taichi Kato. 2021-08-20. ASASSN-V J205543.90+240033.5: another white dwarf pulsar?. https://arxiv.org/abs/2108.09060

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