TY - JOUR
T1 - A balloon-borne very long baseline interferometry experiment in the stratosphere
T2 - Systems design and developments
AU - Doi, Akihiro
AU - Kono, Yusuke
AU - Kimura, Kimihiro
AU - Nakahara, Satomi
AU - Oyama, Tomoaki
AU - Okada, Nozomi
AU - Satou, Yasutaka
AU - Yamashita, Kazuyoshi
AU - Matsumoto, Naoko
AU - Baba, Mitsuhisa
AU - Yasuda, Daisuke
AU - Suzuki, Shunsaku
AU - Hasegawa, Yutaka
AU - Honma, Mareki
AU - Tanaka, Hiroaki
AU - Ishimura, Kosei
AU - Murata, Yasuhiro
AU - Shimomukai, Reiho
AU - Tachi, Tomohiro
AU - Saito, Kazuya
AU - Watanabe, Naohiko
AU - Bando, Nobutaka
AU - Kameya, Osamu
AU - Yonekura, Yoshinori
AU - Sekido, Mamoru
AU - Inoue, Yoshiyuki
AU - Sakamoto, Hikaru
AU - Kogiso, Nozomu
AU - Shoji, Yasuhiro
AU - Ogawa, Hideo
AU - Fujisawa, Kenta
AU - Narita, Masanao
AU - Shibai, Hiroshi
AU - Fuke, Hideyuki
AU - Uehara, Kenta
AU - Koyama, Shoko
N1 - Funding Information:
Our deep appreciation goes to Kanaguchi, M., Miyaji, Y., Komori, A., Ebisawa, K., Kobayashi, H., Ogi, Y., Takefuji, K., Tsuboi, M., and Manabe, T., Aoki, T., for their invaluable supports to this project. A special note of thanks to all the staff involved in the development and operation of the Taiki Aerospace Research Field (TARF), a facility of the Japan Aerospace Exploration Agency (JAXA); especially, we received generous support from Yoshida, T. Saito, Y., Koyanagi, K., and Sasaki, A. Scientific Ballooning Research and Operation Group and the laboratory of infrared astrophysics offer development infrastructures in the Sagamihara campus of the Institute of Space and Astronautical Science (ISAS), which is a branch of JAXA. We are also grateful to the staff and students involved in the development and operation of the Mizusawa VLBI Observatory of the National Astronomical Observatory of Japan (NAOJ), which is a branch of the National Institutes of Natural Sciences (NINS). The Mizusawa VLBI Observatory is responsible for the operations of the correlator for the balloon-borne VLBI experiment. A large part of the large pressurized vessel (PVL) has also been developed at the Mizusawa VLBI Observatory: we appreciate the contributions of Matsueda, C., Asakura, Y., Matsukawa, Y., Nagayama, T., Nakamura, H., Nishikawa, T., and Yamada, R. The encouragement from the Japan VLBI Consortium committee were invaluable for continuing the development activities of this experiment. Part of this activity is carried out under the collaborative research agreement between RIKEN and JAXA. This work was supported by JSPS KAKENHI , Grant Nos. 26120537 , 17H02874(AD) , 16K05305 (YK) , the Casio Science Promotion Foundation (AD), the Inamori Foundation (YK), and the Sasakawa Scientific Research Grant (SN). This study was partially supported by JAXA’s competitive grants for Strategic Basic Research and Development (HT) and Expense for Basic Development of On-board Instruments and Experiment (YK).
Funding Information:
Our deep appreciation goes to Kanaguchi, M., Miyaji, Y., Komori, A., Ebisawa, K., Kobayashi, H., Ogi, Y., Takefuji, K., Tsuboi, M., and Manabe, T., Aoki, T., for their invaluable supports to this project. A special note of thanks to all the staff involved in the development and operation of the Taiki Aerospace Research Field (TARF), a facility of the Japan Aerospace Exploration Agency (JAXA); especially, we received generous support from Yoshida, T. Saito, Y., Koyanagi, K., and Sasaki, A. Scientific Ballooning Research and Operation Group and the laboratory of infrared astrophysics offer development infrastructures in the Sagamihara campus of the Institute of Space and Astronautical Science (ISAS), which is a branch of JAXA. We are also grateful to the staff and students involved in the development and operation of the Mizusawa VLBI Observatory of the National Astronomical Observatory of Japan (NAOJ), which is a branch of the National Institutes of Natural Sciences (NINS). The Mizusawa VLBI Observatory is responsible for the operations of the correlator for the balloon-borne VLBI experiment. A large part of the large pressurized vessel (PVL) has also been developed at the Mizusawa VLBI Observatory: we appreciate the contributions of Matsueda, C., Asakura, Y., Matsukawa, Y., Nagayama, T., Nakamura, H., Nishikawa, T., and Yamada, R. The encouragement from the Japan VLBI Consortium committee were invaluable for continuing the development activities of this experiment. Part of this activity is carried out under the collaborative research agreement between RIKEN and JAXA. This work was supported by JSPS KAKENHI, Grant Nos. 26120537, 17H02874(AD), 16K05305 (YK), the Casio Science Promotion Foundation (AD), the Inamori Foundation (YK), and the Sasakawa Scientific Research Grant (SN). This study was partially supported by JAXA's competitive grants for Strategic Basic Research and Development (HT) and Expense for Basic Development of On-board Instruments and Experiment (YK).
Publisher Copyright:
© 2018
PY - 2019/1/1
Y1 - 2019/1/1
N2 - 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.
AB - 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.
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U2 - 10.1016/j.asr.2018.09.020
DO - 10.1016/j.asr.2018.09.020
M3 - Article
AN - SCOPUS:85056403218
SN - 0273-1177
VL - 63
SP - 779
EP - 793
JO - Advances in Space Research
JF - Advances in Space Research
IS - 1
ER -