A Balloon-Borne Very Long Baseline Interferometry Experiment in the Stratosphere: Systems Design and Developments
| Autor: | Doi, Akihiro, Kono, Yusuke, Kimura, Kimihiro, Nakahara, Satomi, Oyama, Tomoaki, Okada, Nozomi, Satou, Yasutaka, Yamashita, Kazuyoshi, Matsumoto, Naoko, Baba, Mitsuhisa, Yasuda, Daisuke, Suzuki, Shunsaku, Hasegawa, Yutaka, Honma, Mareki, Tanaka, Hiroaki, Ishimura, Kosei, Murata, Yasuhiro, Shimomukai, Reiho, Tachi, Tomohiro, Saito, Kazuya, Watanabe, Naohiko, Bando, Nobutaka, Kameya, Osamu, Yonekura, Yoshinori, Sekido, Mamoru, Inoue, Yoshiyuki, Sakamoto, Hikaru, Kogiso, Nozomu, Shoji, Yasuhiro, Ogawa, Hideo, Fujisawa, Kenta, Narita, Masanao, Shibai, Hiroshi, Fuke, Hideyuki, Ueharai, Kenta, Koyama, Shoko |
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| Rok vydání: | 2018 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1016/j.asr.2018.09.020 |
| Popis: | The balloon-borne very long baseline interferometry (VLBI) experiment is a technical feasibility study for performing radio interferometry in the stratosphere. The flight model has been developed. A balloon-borne VLBI station will be launched to establish interferometric fringes with ground-based VLBI stations distributed over the Japanese islands at an observing frequency of approximately 20 GHz as the first step. This paper describes the system design and development of a series of observing instruments and bus systems. In addition to the advantages of avoiding the atmospheric effects of absorption and fluctuation in high frequency radio observation, the mobility of a station can improve the sampling coverage (`uv-coverage') by increasing the number of baselines by the number of ground-based counterparts for each observation day. This benefit cannot be obtained with conventional arrays that solely comprise ground-based stations. The balloon-borne VLBI can contribute to a future progress of research fields such as black holes by direct imaging. Comment: 15 pages, 6 figures, 1 table. Advances in Space Research, in press |
| Databáze: | arXiv |
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