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		| Paper: | A Large Scale CO Survey Toward the Orion-Eridanus Region with NANTEN |  
		| Volume: | 287, Galactic Star Formation Across the Stellar Mass Spectrum |  
		| Page: | 47 |  
		| Authors: | Mizuno, N.; Aoyama, H.; Onishi, T.; Mizuno, A.; Fukui, Y. |  
		| Abstract: | We present the new wide-field, high spatial and velocity resolution map of the entire CO distribution of the Orion molecular cloud complex and Eridanus loop. The observations were carried out with the NANTEN 4-m radio telescope at Las Campanas Observatory. The survey covered 615 square degrees at a 4' grid spacing, and the total molecular mass in the observed area is estimated to be 2.3 × 105 M ⊙. More than 50% of the total mass is concentrated in and around the previously known Orion A and B giant molecular clouds. We found many small clouds with masses of a few M ⊙. They are distributed away from OB stars, and some of them show a ring-shaped structure surrounding OB stars. We also detected cometary-shaped clouds located at the higher Galactic latitude. |  
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