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Paper: A New 45 GHz Band Receiver with Dual Polarization for NRO 45-m Telescope
Volume: 476, New Trends in Radio Astronomy in the ALMA Era
Page: 403
Authors: Tokuda, K.; Kozu, M.; Kimura, K.; Muraoka, K.; Maezawa, H.; Onishi, T.; Ogawa, H.; Nakamura, F.; Kuno, N.; Takano, S.; Iono, D.; Kawabe, R.; Kameno, S.
Abstract: We are developing a new dual polarization receiver at 45GHz band to be installed on the Nobeyama 45 m radio telescope. The purpose of the receiver is to measure the polarization difference caused by the Zeeman effect in magnetized molecular cores, and then we are focusing on the stability of the polarization observations for the development. The magnetic field is considered to play an important role in a star formation process. However, our understanding of the magnetic field in molecular clouds/cores is still very limited, because the measurement of the magnetic field has been quite difficult as it requires very sensitive, stable receiver system. We then plan to develop a new receiver system for measuring the Zeeman effect, and the details about the project is described by Nakamura et al. in this volume. In this presentation, we focus on the development of the new dual polarization receiver.
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