Outflow - Core Interaction in Barnard 1

摘要: In order to study how outflows from protostars influence the physical and chemical conditions of parent molecular cloud, we have observed Barnard 1 (B1) main core, which harbors four Class 0 three I sources, in CO (J=1-0), CH3OH (J_K=2_K-1_K), SiO (J=1-0) lines using Nobeyama 45 m telescope. We identified this region; one is an elongated (~ 0.3 pc) bipolar outflow a protostar B1-c submillimeter clump SMM 2, another rather compact 0.1 B1 IRS 6, other extended 11. western lobe 2 outflow, both show broad redshifted wings with terminal velocities 25 km/s 13 km/s, respectively. It likely that shocks caused by interaction between ambient gas enhance abundance phase. The total energy input rate (1.1x10^{-3} Lsun) smaller than loss (8.5x10^{-3} Lsun$) through turbulence decay suggests can not sustain region. Since are energetic enough compensate dissipating neighboring, more evolved star forming region NGC 1333, suggest balance depends on evolutionary state formation clouds.