DDE 35: more likely a polar
This object was classified as an SU UMa star based on
superhump detection (vsnet-alert 24074). These humps,
however, were seen only on two nights (2020 Mar. 16 and 18)
and no humps were apparent on Mar. 19.
The ZTF data show distinct high and low states unlike
an SU UMa star (currently in bright state starting from
late 2021). The magnitude (around 16) in 2020 Mar. was
too faint (M_V=+6.6) for a superoutburst. The behavior
suggests that the object is likely a polar. I have not
been able to detect an orbital period in the ZTF data.
Show replies by date