DEVELOPMENT FOR STELLAR SPECKLE SPECTROSCOPIC CAMERA

我们开发了一种恒星散斑光谱相机，可以从地面进行高空间分辨率的光谱分析。我们使用连接在冈山天体物理天文台188厘米望远镜上的相机进行了几次观测。结果表明，我们的散斑光谱方法可以进行与普通光谱仪类似的定量光谱分析。对角距为0.26”的双星ADS 12973的光谱进行了空间分辨。重建的半星吸收谱线根据两颗恒星的相对位置相互移动。我们发现phand的主星有α发射谱线，而副星有α吸收谱线。phiAnd的角分离为0.35"，在大气湍流条件下，用普通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精确研究恒星物体，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.