THE JET AND ARC MOLECULAR CLOUDS TOWARD WESTERLUND 2, RCW 49, AND HESS J1023–575;<sup>12</sup>CO AND<sup>13</sup>CO (<i>J</i>= 2-1 and<i>J</i>= 1-0) OBSERVATIONS WITH NANTEN2 AND MOPRA TELESCOPE
Astrophysical journal/The Astrophysical journal