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arXiv · 2107.09913

ZTF J185139.81+171430.3 = ZTF18abnbzvx: the second white dwarf pulsar?

Taichi Kato·Naoto Kojiguchi
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Abstract

We found that ZTF J185139.81+171430.3 = ZTF18abnbzvx shows a very short [0.00858995(3) d = 12.37 min] and large-amplitude (0.8 mag) coherent variations using Public Data Release of Zwicky Transient Facility observations. The only known object that shows similar very short period, large-amplitude and coherent variations is the unique white dwarf pulsar AR Sco. The variations in ZTF J185139.81+171430.3 may arise from the mechanism as in AR Sco and should deserve attention.

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Taichi Kato, Naoto Kojiguchi. 2021-07-22. ZTF J185139.81+171430.3 = ZTF18abnbzvx: the second white dwarf pulsar?. https://arxiv.org/abs/2107.09913

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