It was recently proposed that the cataclysmic variable (CV) LAMOST J024048.51+195226.9 may be a twin to the unique magnetic propeller system AE Aqr. If this is the case, two predictions are that it should display a short period white dwarf spin modulation, and that it should be a bright radio source. We obtained follow-up optical and radio observations of this CV, in order to see if this holds true. Our optical high-speed photometry does not reveal a white dwarf spin signal, but lacks the sensitivity to detect a modulation similar to the 33 s spin signal seen in AE Aqr. We detect the source in the radio, and measure a radio luminosity similar to that of AE Aqr and close to the highest so far reported for a CV. We also find good evidence for radio variability on a time-scale of tens of minutes. Optical polarimetric observations produce no detection of linear or circular polarization. While we are not able to provide compelling evidence, our observations are all consistent with this object being a propeller system.

中文翻译：

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可能的 AE Aqr 双胞胎的无线电和光学观测，LAMOST J024048.51+195226.9

最近有人提出，巨变变量（CV）LAMOST J024048.51+195226.9 可能是独特的磁螺旋桨系统 AE Aqr 的双胞胎。如果是这种情况，有两个预测是它应该显示一个短周期的白矮星自旋调制，并且它应该是一个明亮的射电源。我们对这艘 CV 进行了后续的光学和无线电观测，以确定这是否属实。我们的光学高速光度法没有揭示白矮星自旋信号，但缺乏检测类似于 AE Aqr 中看到的 33 秒自旋信号的调制的灵敏度。我们检测无线电中的源，并测量类似于 AE Aqr 的无线电光度，接近迄今为止报告的 CV 最高值。我们还发现了数十分钟时间尺度上无线电变化的良好证据。光学偏振观测不会检测到线性或圆偏振。虽然我们无法提供令人信服的证据，但我们的观察结果都与这个物体是螺旋桨系统一致。