Отправить статью по E-mail Development of a small telescope like PZT and effects of vibrations of mercury surface and ground noise
- Авторы: Hanada H.1,2, Tsuruta S.1, Asari K.1, Araki H.1,2, Noda H.1,2, Tazawa S.1, Kashima S.1, Funazaki K.3, Satoh A.3, Taniguchi H.3, Kato H.3, Kikuchi M.3, Sasaki H.3, Hasegawa T.3, Yano T.1,2, Gouda N.1,2, Kobayashi Y.1,2, Yamada Y.4, Iwata T.5,2, Gusev A.6
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Учреждения:
- National Astronomical Observatory
- SOKENDAI (The Graduate University for Advanced Studies)
- Iwate University
- Kyoto University
- Institute of Space and Astronautical Sciences
- Kazan Federal University
- Выпуск: Том 8, № 4 (2017)
- Страницы: 304-319
- Раздел: Article
- URL: https://bakhtiniada.ru/2075-1087/article/view/204242
- DOI: https://doi.org/10.1134/S207510871704006X
- ID: 204242
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Аннотация
A PZT type telescope for observations of gravity gradient and lunar rotation was developed, and a Bread Board Model (BBM) for ground experiments was completed. Some developments were made for the BBM such as a tripod with attitude control system, a stable mercury pool and a method for collecting the effects of vibrations. Laboratory experiments and field observations were performed from August to September of 2014, in order to check the entire system of the telescope and the software, and the results were compared to the centroid experiments which pursue the best accuracy of determination of the center of star images with a simple optical system. It was also investigated how the vibrations of mercury surface affect the centroid position on Charge Coupled Device (CCD). The results of the experiments showed that the effects of vibrations are almost common to stars in the same view, and they can be corrected by removing mean variation of the stars; and that the vibration of mercury surface can cause errors in centroid as large as 0.2 arcsec; and that there is a strong correlation between the Standard Deviation (SD) of variation of the centroid position and signal to noise ratio (SNR) of star images. It is likely that the accuracy of one (1) milli arcsecond is possible if SNR is high enough and the effects of vibrations are corrected.
Об авторах
H. Hanada
National Astronomical Observatory; SOKENDAI (The Graduate University for Advanced Studies)
Автор, ответственный за переписку.
Email: hideo.hanada@nao.ac.jp
Япония, Mitaka/Oshu; Mitaka/Sagamihara
S. Tsuruta
National Astronomical Observatory
Email: hideo.hanada@nao.ac.jp
Япония, Mitaka/Oshu
K. Asari
National Astronomical Observatory
Email: hideo.hanada@nao.ac.jp
Япония, Mitaka/Oshu
H. Araki
National Astronomical Observatory; SOKENDAI (The Graduate University for Advanced Studies)
Email: hideo.hanada@nao.ac.jp
Япония, Mitaka/Oshu; Mitaka/Sagamihara
H. Noda
National Astronomical Observatory; SOKENDAI (The Graduate University for Advanced Studies)
Email: hideo.hanada@nao.ac.jp
Япония, Mitaka/Oshu; Mitaka/Sagamihara
S. Tazawa
National Astronomical Observatory
Email: hideo.hanada@nao.ac.jp
Япония, Mitaka/Oshu
S. Kashima
National Astronomical Observatory
Email: hideo.hanada@nao.ac.jp
Япония, Mitaka/Oshu
K. Funazaki
Iwate University
Email: hideo.hanada@nao.ac.jp
Япония, Morioka
A. Satoh
Iwate University
Email: hideo.hanada@nao.ac.jp
Япония, Morioka
H. Taniguchi
Iwate University
Email: hideo.hanada@nao.ac.jp
Япония, Morioka
H. Kato
Iwate University
Email: hideo.hanada@nao.ac.jp
Япония, Morioka
M. Kikuchi
Iwate University
Email: hideo.hanada@nao.ac.jp
Япония, Morioka
H. Sasaki
Iwate University
Email: hideo.hanada@nao.ac.jp
Япония, Morioka
T. Hasegawa
Iwate University
Email: hideo.hanada@nao.ac.jp
Япония, Morioka
T. Yano
National Astronomical Observatory; SOKENDAI (The Graduate University for Advanced Studies)
Email: hideo.hanada@nao.ac.jp
Япония, Mitaka/Oshu; Mitaka/Sagamihara
N. Gouda
National Astronomical Observatory; SOKENDAI (The Graduate University for Advanced Studies)
Email: hideo.hanada@nao.ac.jp
Япония, Mitaka/Oshu; Mitaka/Sagamihara
Y. Kobayashi
National Astronomical Observatory; SOKENDAI (The Graduate University for Advanced Studies)
Email: hideo.hanada@nao.ac.jp
Япония, Mitaka/Oshu; Mitaka/Sagamihara
Y. Yamada
Kyoto University
Email: hideo.hanada@nao.ac.jp
Япония, Kyoto
T. Iwata
Institute of Space and Astronautical Sciences; SOKENDAI (The Graduate University for Advanced Studies)
Email: hideo.hanada@nao.ac.jp
Япония, Sagamihara; Mitaka/Sagamihara
A. Gusev
Kazan Federal University
Email: hideo.hanada@nao.ac.jp
Россия, Kazan
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