DEVELOPMENT FOR STELLAR SPECKLE SPECTROSCOPIC CAMERA

恒星散斑光谱相机的开发

• 批准号: 04554002
• 负责人: BABA Naoshi
• 金额: $ 4.1万
• 依托单位: Hokkaido University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research (B)
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1993
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-04554002/
• 关键词: STELLAR SPECKLE; SPECKLE INTERFEROMETRY; SPECTROSCOPY; SPECTROMETER; STELLAR SPECTRA

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.

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。

项目成果

S.Kuwamura, N.Baba, N.Miura and Y.Norimoto: "Stellar spectral reconstruction from speckle spectroscopic data II" Astron.J.106. 2532-2539 (1993)

S.Kuwamura、N.Baba、N.Miura 和 Y.Norimoto：“从散斑光谱数据重建恒星光谱 II”Astron.J.106。

N.Baba: "High resolution imaging with large telescope" Proc.Sino-Japan Symp.'Engineering Optics'. 353-358 (1992)

N.Baba：“大型望远镜高分辨率成像”Proc.Sino-Japan Symp.工程光学。

S.Kuwamura, N.Baba, N.Miura and K.Murata: "Stellar spectroscopy with diffraction-limited resolution of large telescope" Proc.Sino-Japan Symp.on Engineering Optics (Acta Optica Sinica, Beijing). 369-372 (1992)

S.Kuwamura、N.Baba、N.Miura 和 K.Murata：“大型望远镜衍射极限分辨率的恒星光谱”Proc.Sino-Japan Symp.on Engineering Optics（光学学报，北京）。

S.Kuwamura: "Stellar spectroscopy with diffraction-limited resolution of large telescope" Proc.Sino-Japan Symp.'Engineering Optics'. 369-372 (1992)

S.Kuwamura：“大型望远镜衍射极限分辨率的恒星光谱”Proc.Sino-Japan Symp.工程光学。

S.Kuwamura: "Stellar spectral reconstruction from speckle spectroscopic data" Astron.J.105. 665-671 (1993)

S.Kuwamura：“从散斑光谱数据重建恒星光谱”Astron.J.105。