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Paper: The CCS 45 GHz Zeeman Project: Magnetic Field Measurements Towards Prestellar Cores
Volume: 476, New Trends in Radio Astronomy in the ALMA Era
Page: 239
Authors: Nakamura, F.; Ogawa, H.; Kameno, S.; Kimura, K.; Mizuno, I.; Tokuda, K.; Kozu, M.; Tanaka, T.; Iono, D.; Takano, S.; Dobashi, K.; Matsumoto, T.; Kuno, N.; Kawabe, R.; Onishi, T.; Momose, M.; Shinnaga, H.; Yamamoto, S.; Maezawa, H.; Hirota, T.
Abstract: Stars form out of dense cores in turbulent, magnetized molecular clouds. However, the role of magnetic fields in star formation remains poorly understood both theoretically and observationally. This is in part due to the lack of the observational characterization of the magnetic fields that are associated with the dense cores prior to star formation, or pre-protostellar cores. To shed light on the issue of the magnetic field in the gravitational collapse of pre-protostellar cores, we have started a project of the magnetic field measurements toward pre-protostellar cores using the Zeeman splitting of CCS (JN = 43 – 32) line. We are now developing a new 45GHz band, dual polarization, reciever for the Nobeyama 45m telescope. In this contribution, we summarize a current status of our Zeeman project and future plan.
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