Aperture masking observations in binary stars detection with 1.56-m telescope

Yuanyuan Ding; Xinyang Chen; Lurun Shen; Jie Zhu; Qi Wang

doi:10.1117/12.3018209

30 April 2024 Aperture masking observations in binary stars detection with 1.56-m telescope

Yuanyuan Ding, Xinyang Chen, Lurun Shen, Jie Zhu, Qi Wang

Proceedings Volume 13155, Sixth Conference on Frontiers in Optical Imaging and Technology: Novel Imaging Systems; 131550S (2024) https://doi.org/10.1117/12.3018209
Event: Sixth Conference on Frontiers in Optical Imaging Technology and Applications (FOI2023), 2023, Nanjing, JS, China

Abstract

By placing a mask over the pupil of the optical telescope, the aperture masking technique transforms the telescope into a Fizeau interferometry telescope. Thanks to reasonable aperture configuration and baseline rotation techniques, it is possible to achieve almost the same imaging quality as a full aperture telescope. This technique has shown great potential in astrometry and astrophysics research, such as: exoplanet detection, protoplanetary disk, brown dwarf, etc. In order to verify the image restoration algorithm, we carried out binary stars observations on 1.56-m telescope. We presented the numerical simulation of aperture configuration and baseline rotation, and designed the mask and the experimental system. We select some binary stars with magnitude from 5 to 7 and angular distance from 0.2 to 2arcsec as observation targets. Combined with the short exposure observation, a two-step image restoration method is proposed, the results of high-resolution image reconstruction and angular distance measurement are verified. The above results will be applied to the first-generation Fizeau interferometry prototype at the Shanghai Astronomical Observatory (SHAO).

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Yuanyuan Ding, Xinyang Chen, Lurun Shen, Jie Zhu, and Qi Wang "Aperture masking observations in binary stars detection with 1.56-m telescope", Proc. SPIE 13155, Sixth Conference on Frontiers in Optical Imaging and Technology: Novel Imaging Systems, 131550S (30 April 2024); https://doi.org/10.1117/12.3018209

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