DEVELOPMENT FOR STELLAR SPECKLE SPECTROSCOPIC CAMERA

我们已经开发了一个恒星散斑光谱相机，它可以从地面高空间分辨率光谱。我们用安装在日本国立天文台冈山天体物理观测站188厘米望远镜上的照相机进行了多次观测，结果表明，我们的散斑光谱方法可以进行类似于普通光谱仪的定量光谱分析。我们对角距为0.26”的双星星星ADS 12973的光谱进行了空间分辨。重建的H α吸收线随两星相对位置的变化而相互偏移，揭示了phiAnd主星星星具有H α发射线，而次星星具有H α吸收线。φ And的角间距为0.35”，在大气湍流条件下，用常规方法很难对光谱进行空间分辨。我们的恒星散斑光谱方法将有助于恒星天体的精确研究，这需要逐点光谱。

We have developed a stellar speckle spectroscopic camera, which enables high spatial resolution spectroscopy from the ground. We conducted several observational runs by using our camera attached to the 188cm telescope of the Okayama Astrophysical Observatory, National Astronomical Observatory.It has been shown that our speckle spectroscopic method enables quantitative spectral analysis similar to an ordinary spectrometer. We spatially resolved the spectra of a binary star, ADS 12973 of which angular separation is 0.26". The reconstructed Halpha absorption lines shifts each other corresponding to the relative position of the two stars.We revealed that the primary star of phiAnd has Halpha emission line but the secondary star has Halpha absorption line. The angular separation of phiAnd is 0.35" and it is very difficult to spatially resolve the spectra by ordinary methods under atmospheric turbulence. Our stellar speckle spectroscopic method will be useful for precise study of stellar objects, which needs point-by-point spectroscopy.