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Our successful incursion via XMM-AO18 into the X-rays of newly discovered magnetic cataclysmic variable openParmCVclosePar candidates revealed a promising strategy to identify further X-ray low-luminous intermediate polars openParLLIPsclosePar. We noticed that there seems to be comma although not a rule comma common signatures in their optical spectra. Here we propose to take advantage of what we learned and the Fulfil XMM Program to continue a foray into mCV candidates never investigated in X- rays. This time we target handpicked systems that are similar to LLIPs in the optical regime. LLIPs are short orbital period systems pushing forward the understanding of evolution and physics of mCVs comma and seem to be numerous in an unexplored subclass of intermediate polars openParIPsclosePar.

我们依托XMM-AO18对新发现的磁激变变星（magnetic cataclysmic variable, mCV）候选体开展的X射线观测研究，已取得显著进展，并确立了一种可用于识别更多低光度X射线中间极（low-luminous intermediate polars, LLIPs）的高效方案。尽管并非普适性规律，但这类候选体的光学光谱中似乎存在共有的特征信号。基于此前的研究积累，我们计划利用已掌握的相关知识与Fulfil XMM观测项目，继续对此前从未在X射线波段被研究过的mCV候选体展开巡测研究。本次研究将瞄准那些在光学波段与LLIPs特征相似的精选天体系统。LLIPs属于短轨道周期天体系统，对其开展研究有助于深化我们对磁激变变星（mCV）的演化与物理机制的认知，且在尚未被探索的中间极（intermediate polars, IPs）子类中，这类天体的数量似乎颇为可观。