激变变星0623＋71的光谱研究

THE SPECTROSCOPIC STUDY OF CATACLYSMIC VARIABLE 0623+71

本文提出了激变变星０６２３十７１的４个时间分辨光谱，覆盖轨道周期的７３％．其中的３个谱清楚地显示了各种光谱特征随轨道运动的变化，在流量、能谱以及谱线轮廓方面的这种变化正是对一个倾角不太大的激变变星所期望的．然而另一个曝光对分钟的谱，流量和视向速度与预期的相比都太大，很难加以解释，可能它是一次象ＡＥＡｑｒ中观测到的跃发事件．

We have studied 4 time-resolved spectra of the cataclysmic variable 0623+71,covering 73% of the orbit period. Three spectra of them show the variations in fluxes,their distributions and line profiles with the orbital motion, which are expected for a cataclysmic variable having. the inclination not to be very large. For another spectrum with exposure time of 20 minutes, its fluxes and radial velocities are far from the expectation. It is difficult to be explained. It may be something like the flares observed in AE Aqr.