SIMBAD references

Deuterated species are proved to be helpful in understanding the physical and chemical properties in various astrophysical environments. The present study is dedicated to the rotational excitation of CD⁺ by collision with ⁴He and to the comparison between CD⁺-He and CH⁺-He rate coefficients. Close coupling CD⁺-He rotational cross-sections are calculated within the rigid-body approach for collision energies up to 3000 cm^–1 and the corresponding rate coefficients are evaluated for the transitions of levels up to j = 10 and temperatures up to 300 K. Significant differences are found between the rate coefficients of the two isotopologues.