Abstract—This paper presents a method for searching for polar candidates using mid-band filters. One of the spectral features of polars is the HeII λ4686 strong emission line. We selected the Edmund Optics color filters with central wavelengths of 470, 540, and 656 nm and a transmission bandwidth of 10 nm. These filters cover the regions of the HeII λ4686 line, continuum, and the Hα line respectively. We constructed a color diagram based on the available spectra of polars and objects with a zero redshift from the SDSS archive. We show that most polars make a group with unique color indices. In practice, the method is implemented in SAO RAS at the Zeiss-1000 telescope with a new multi-mode photometer-polarimeter (MMPP). Approbation of the method with the known polars allowed us to develop two criteria to select candidates with an efficiency of up to 75%.

摘要—本文提出了一种使用中频带滤波器搜索极坐标候选者的方法。极性的光谱特征之一是HeIIλ4686强发射线。我们选择Edmund Optics彩色滤光片，其中心波长为470、540和656 nm，传输带宽为10 nm。这些滤镜分别覆盖HeIIλ4686线，连续谱和Hα线的区域。我们根据来自SDSS档案的零极移和极移和极地的可用光谱构造了一个色图。我们表明，大多数极点构成一个具有唯一颜色索引的组。实际上，该方法是在Zeiss-1000望远镜的SAO RAS中使用新的多模式光度计-偏振计（MMPP）实施的。对已知极性的方法的认可使我们能够制定两个标准来选择效率高达75％的候选物。