We present the results of spectral observations of the Herbig Ae/Be star HD179218. We discovered a wave-like variation in the parameters of the Hα line emission component with a typical time scale of about 40 days. The observed wave is characterized by a significant decrease in the measured line parameters, with conspicuous branches of increasing and decreasing parameters. Simultaneously, additional blue and red emission and absorption components appear and disappear in the Hα line profile during the moment of minimum. The observed variations in the spectrum of the star may be explained by the existence of polar winds and accretion, or by assuming that the star is a binary system.

中文翻译：

---

Herbig Ae型恒星HD179218中的Hα线变化

我们介绍了Herbig Ae / Be星HD179218的光谱观测结果。我们发现Hα线发射分量的参数呈波浪状变化，典型时标约为40天。观察到的波的特征在于所测线参数的显着减少，而参数的增加和减少则明显分支。同时，最小的时刻，额外的蓝色和红色发射和吸收分量会在Hα线轮廓中出现或消失。观测到的恒星光谱变化可以通过存在极风和吸积来解释，也可以通过假设恒星是双星系统来解释。