Development of the new multi-beam receiver and telescope control system for NASCO

Atsushi Nishimura; Akio Ohama; Kimihiro Kimura; Daichi Tsutsumi; Yudai Matsue; Rin Yamada; Mariko Sakamoto; Kenta Matsunaga; Yutaka Hasegawa; Taisei Minami; Takeru Matsumoto; Kazuki Shiotani; So Okuda; Kakeru Fujishiro; Keisuke Sakasai; Masahiro Suzuki; Shun Saeki; Kouki Satani; Kousuke Urushihara; Chiharu Kato; Takashi Kondo; Kazuki Okawa; Daiki Kurita; Tetsuta Inaba; Shohei Maruyama; Masako Koga; Kenya Noda; Mikito Kohno; Hiroaki Iwamura; Yuichi Hori; Kaoru Nishikawa; Takeru Nishioka; Thoqin Pang; Hidetoshi Sano; Rei Enokiya; Satoshi Yoshiike; Shinji Fujita; Katsuhiro Hayashi; Kazufumi Torii; Takahiro Hayakawa; Akio Taniguchi; Kisetsu Tsuge; Yumiko Yamane; Yusuke Hattori; Takahiro Ohno; Shota Ueda; Sho Masui; Yasumasa Yamasaki; Hiroshi Kondo; Kazuji Suzuki; Kazuhiro Kobayashi; Yasunori Fujii; Yumi Fujii; Tetsuhiro Minamidani; Takeshi Okuda; Hiroaki Yamamoto; Kengo Tachihara; Toshikazu Onishi; Akira Mizuno; Hideo Ogawa; Yasuo Fukui

doi:10.1117/12.2562053

13 December 2020 Development of the new multi-beam receiver and telescope control system for NASCO

Atsushi Nishimura, Akio Ohama, Kimihiro Kimura, Daichi Tsutsumi, Yudai Matsue, Rin Yamada, Mariko Sakamoto, Kenta Matsunaga, Yutaka Hasegawa, Taisei Minami, Takeru Matsumoto, Kazuki Shiotani, So Okuda, Kakeru Fujishiro, Keisuke Sakasai, Masahiro Suzuki, Shun Saeki, Kouki Satani, Kousuke Urushihara, Chiharu Kato, Takashi Kondo, Kazuki Okawa, Daiki Kurita, Tetsuta Inaba, Shohei Maruyama, Masako Koga, Kenya Noda, Mikito Kohno, Hiroaki Iwamura, Yuichi Hori, Kaoru Nishikawa, Takeru Nishioka, Thoqin Pang, Hidetoshi Sano, Rei Enokiya, Satoshi Yoshiike, Shinji Fujita, Katsuhiro Hayashi, Kazufumi Torii, Takahiro Hayakawa, Akio Taniguchi, Kisetsu Tsuge, Yumiko Yamane, Yusuke Hattori, Takahiro Ohno, Shota Ueda, Sho Masui, Yasumasa Yamasaki, Hiroshi Kondo, Kazuji Suzuki, Kazuhiro Kobayashi, Yasunori Fujii, Yumi Fujii, Tetsuhiro Minamidani, Takeshi Okuda, Hiroaki Yamamoto, Kengo Tachihara, Toshikazu Onishi, Akira Mizuno, Hideo Ogawa, Yasuo Fukui

Author Affiliations +

Proceedings Volume 11453, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X; 114533Z (2020) https://doi.org/10.1117/12.2562053
Event: SPIE Astronomical Telescopes + Instrumentation, 2020, Online Only

Conference Poster

Abstract

We report the current status of the NASCO (NAnten2 Super CO survey as legacy) project which aims to provide all-sky CO data cube of southern hemisphere using the NANTEN2 4-m submillimeter telescope installed at the Atacama Desert through developing a new multi-beam receiver and a new telescope control system. The receiver consists of 5 beams. The four beams, located at the four corners of a square with the beam separation of 720′′, are installed with a 100 GHz band SIS receiver having 2-polarization sideband-separation filter. The other beam, located at the optical axis, is installed with a 200 GHz band SIS receiver having 2-polarization sideband-separation filter. The cooled component is modularized for each beam, and cooled mirrors are used. The IF bandwidths are 8 and 4 GHz for 100 and 200 GHz bands, respectively. Using XFFTS spectrometers with a bandwidth of 2 GHz, the lines of ¹²CO, ¹³CO, and C¹⁸O of J=1−0 or J=2−1 can be observed simultaneously for each beam. The control system is reconstructed on the ROS architecture, which is an open source framework for robot control, to enable a flexible observation mode and to handle a large amount of data. The framework is commonly used and maintained in a robotic field, and thereby reliability, flexibility, expandability, and efficiency in development are improved as compared with the system previously used. The receiver and control system are installed on the NANTEN2 telescope in December 2019, and its commissioning and science verification are on-going. We are planning to start science operation in early 2021.

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Atsushi Nishimura, Akio Ohama, Kimihiro Kimura, Daichi Tsutsumi, Yudai Matsue, Rin Yamada, Mariko Sakamoto, Kenta Matsunaga, Yutaka Hasegawa, Taisei Minami, Takeru Matsumoto, Kazuki Shiotani, So Okuda, Kakeru Fujishiro, Keisuke Sakasai, Masahiro Suzuki, Shun Saeki, Kouki Satani, Kousuke Urushihara, Chiharu Kato, Takashi Kondo, Kazuki Okawa, Daiki Kurita, Tetsuta Inaba, Shohei Maruyama, Masako Koga, Kenya Noda, Mikito Kohno, Hiroaki Iwamura, Yuichi Hori, Kaoru Nishikawa, Takeru Nishioka, Thoqin Pang, Hidetoshi Sano, Rei Enokiya, Satoshi Yoshiike, Shinji Fujita, Katsuhiro Hayashi, Kazufumi Torii, Takahiro Hayakawa, Akio Taniguchi, Kisetsu Tsuge, Yumiko Yamane, Yusuke Hattori, Takahiro Ohno, Shota Ueda, Sho Masui, Yasumasa Yamasaki, Hiroshi Kondo, Kazuji Suzuki, Kazuhiro Kobayashi, Yasunori Fujii, Yumi Fujii, Tetsuhiro Minamidani, Takeshi Okuda, Hiroaki Yamamoto, Kengo Tachihara, Toshikazu Onishi, Akira Mizuno, Hideo Ogawa, and Yasuo Fukui "Development of the new multi-beam receiver and telescope control system for NASCO", Proc. SPIE 11453, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy X, 114533Z (13 December 2020); https://doi.org/10.1117/12.2562053

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