激变变星AE宝瓶座的同时UBVRI观测：火球的温度和质量
Simultaneous UBVRI observations of the cataclysmic variable AE Aquarii: temperature and mass of fireballs
摘要：
我们报告同时多色观测5个波段（UBVRI）的闪烁变化的灾难性变量AE Aqr。我们的目标是估计产生光学耀斑的火球的参数（颜色，温度，大小）。观测到的光学耀斑的上升时间在220 - 440秒之间。我们估计了火球的去红颜色：（U-B）_0在0.8-1.4之间，（B-V）_0 ~ 0.03-0.24之间，（V-I）_0 ~ 0.26-0.78之间。我们发现火球的温度在10000 - 25000 K之间，质量（7-90）.10^{19} g，大小（3-7）.10^9 cm（使用d=86 pc的距离）。这些数值是指在UBVRI波段观测到的耀斑峰值。这些数据可应作者的要求提供。
英文摘要：
We report simultaneous multicolour observations in 5 bands (UBVRI) of the flickering variability of the cataclysmic variable AE Aqr. Our aim is to estimate the parameters (colours, temperature, size) of the fireballs that produce the optical flares. The observed rise time of the optical flares is in the interval 220 - 440 sec. We estimate the dereddened colours of the fireballs: (U-B)_0 in the range 0.8-1.4, (B-V)_0 ~ 0.03-0.24, (V-I)_0 ~ 0.26-0.78. We find for the fireballs a temperature in the range 10000 - 25000 K, mass (7-90).10^{19} g, size (3-7).10^9 cm (using a distance of d=86 pc). These values refer to the peak of the flares observed in UBVRI bands. The data are available upon request from the authors.
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