论文标题
MACHO 311.37557.169：VY SCL星星
MACHO 311.37557.169: A VY Scl star
论文作者
论文摘要
光学调查（例如男子气概项目）通常会发现其分类的可变星星需要其他仪器的后续观察。我们在2018年4月进行了\ XMM \，对不寻常的可变星Macho进行了X射线光谱和光度法，并补充了Archival X射线和光谱学数据。恒星的降压X射线光度约为$ 1 \ times 10^{32} $ erg s $^{ - 1} $ cm $^{ - 2} $，并且具有重吸收的两倍体质质皮谱。其光曲线的形状，整体亮度，X射线光谱和光谱中的发射线表明它很可能是Vy〜SCL灾难性变量。
Optical surveys, such as the MACHO project, often uncover variable stars whose classification requires followup observations by other instruments. We performed X-ray spectroscopy and photometry of the unusual variable star MACHO 311.37557.169 with \XMM\ in April 2018, supplemented by archival X-ray and optical spectrographic data. The star has a bolometric X-ray luminosity of about $1\times 10^{32}$ erg s$^{-1}$ cm$^{-2}$ and a heavily absorbed two-temperature plasma spectrum. The shape of its light curve, its overall brightness, its X-ray spectrum, and the emission lines in its optical spectrum suggest that it is most likely a VY~Scl cataclysmic variable.
