Publication
Interstellar C2 in the Perseus molecular complex: excitation temperature and density of a molecular cloud with anomalous microwave emission
Interstellar absorption lines up to J″= 10 in the (2, 0) band and up to J″= 6 in the (3, 0) band of the C2 A1Πu-X1Σ+g system are detected toward star Cernis 52...