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

TL;DR

This paper reports the discovery of a white dwarf system, ASASSN-V J205543.90+240033.5, exhibiting both long-period sinusoidal variations and short-period pulsations, suggesting it may be another white dwarf pulsar like AR Sco.

Contribution

It identifies a new candidate white dwarf pulsar with unique variability features, expanding the class of such objects.

Findings

Large-amplitude sinusoidal variations with a 10.8-day period

Short-period variations with a 0.0068-day cycle

Similarity to the known white dwarf pulsar AR Sco

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.