Follow-up observations of Planck cold clumps in ${}^{12}$CO/${}^{13}$CO/C${}^{18}$O (1--0) transitions

Yuefang Wu, Tie Liu, Fanyi Meng

The Planck Early Cold Cores Catalog (ECC) provides an unbiased list of Galactic cold clumps, which form an ideal sample for studying the early phases of star formation (\cite[Planc…