Author(s): , , , ,
Institution(s): 1. Nanjing University, 2. Purple Mountain Observatory
Supernova remnant (SNR) CTB 37B, morphologically characterized by an incomplete radio shell, is spatially coincident with the extended TeV source HESS J1713-381 and harbours a magnetar, CXOU J171405.7-381031. It is still debating whether the gamma-ray emission originates from the decay of neutral pions produced by proton interaction between the SNR shock and molecular clouds or from the magnetar. We have performed a Mopra CO-line observation and presented spectroscopic mappings in (12) CO, (13) CO, and C(18) O lines. The possible association with the molecular cloud is found at the systemic velocity range consistent with the distance of the SNR. Detailed investigation for SNR-MC interaction are further needed.