Yan Y.; Zhang J.; Henkel C.; Mufakharov T.; Jia L.; Tang X.; Wu Y.; Li J.; Zeng Z.; Wang Y.; Li Y.; Huang J.; Jian J.
(2019)
© 2019. The American Astronomical Society. We present observations of the C-band 110-111 (4.8 GHz) and Ku-band 211-212 (14.5 GHz) K-doublet lines of H2CO and the C-band 110-111 (4.6 GHz) line of H213CO toward a large sample ...