Orbital and spin periods of the candidate white dwarf pulsar ASASSN-V J205543.90+240033.5
arXiv:2109.03979
Abstract
ASASSN-V J205543.90+240033.5 has been suggested to be a white dwarf pulsar by Kato (2021, arXiv:2108.09060). We obtained time-resolved photometry and identified the orbital and spin periods to be 0.523490(1) d and 0.00678591(1) d = 9.77 min, respectively. These values strengthen the similarity of this object with AR Sco. We estimated that the strength of the spin pulse is 3.6 times smaller than in AR Sco.
arXiv comment6 pages, 4 figures, to appear in VSOLJ Variable Star Bulletin