确认两个磁激变变量为极性：1 RXS J174320 .1-042953和YY性别
Confirmation of two magnetic cataclysmic variables as polars: 1RXS J174320.1-042953 and YY Sex
摘要：
我们提出了我们的新的和存档的两个候选磁激变变量，即1 RXS J174320.1-042953和YY性别的观测分析。1 RXS J174320.1-042953在两个不同的高和低状态下观察到相移，这可能是由于吸积区域的形状，大小和（或）位置的变化。我们发现它的轨道X射线调制只存在于软（0.3-2.0 keV）能带，这可能是由于吸积流中的光电吸收。X射线谱显示出一个多温度的冲击后区域，其中硬X射线通过一个厚吸收体被吸收，该厚吸收体的等效氢柱为$\sim$ 7.5 $\times$ 10 $^{23}$ cm $^{-2}$，它部分地覆盖了$\sim$ 56%的发射。没有发现软X射线过量存在，但是，一个软X射线发射的黑体温度为$\sim$ 97 eV描述的光谱。通过对YY Sex的TESS观测，我们将其轨道周期精确到1.5746 $\pm$ 0.0011 h。在这个系统中，我们没有发现任何先前报道的自旋或拍频周期的特征。此外，我们的新的偏振观测表明，明确的圆偏振调制的轨道周期。最后，这两个系统显示出强大的巴耳末和He II 4686 A $^\circ$发射线的光谱，进一步表明其磁性。
英文摘要：
We present our analysis of new and archived observations of two candidate magnetic cataclysmic variables, namely 1RXS J174320.1-042953 and YY Sex. 1RXS J174320.1-042953 was observed in two distinctive high and low states where a phase shift was seen, which could be due to the changes in the shape, size, and (or) location of the accretion region. We find that its orbital X-ray modulations only persist in the soft (0.3-2.0 keV) energy band, which could be attributed to the photoelectric absorption in the accretion flow. The X-ray spectra exhibit a multi-temperature post-shock region where the hard X-rays are absorbed through a thick absorber with an equivalent hydrogen column of $\sim$7.5 $\times$ 10$^{23}$ cm$^{-2}$, which partially covers $\sim$56 per cent of the emission. No soft X-ray excess was found to be present; however, a soft X-ray emission with a blackbody temperature of $\sim$97 eV describes the spectra. Extensive TESS observations of YY Sex allow us to refine its orbital period to 1.5746 $\pm$ 0.0011 h. We did not find any signature of previously reported spin or beat periods in this system. Furthermore, our new polarimetric observations show clear circular polarization modulated on the orbital period only. Finally, both systems show strong Balmer and He II 4686 A$^\circ$ emission lines in the optical spectra, further indicative of their magnetic nature.
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