supported by the National Natural Science Foundation of China(11073041,11133008 and11273043);the Strategic Priority Research Program of the Chinese Academy of Sciences(XDA04060701);China Ministry of Science and Technology under State Key Development Program for Basic Research(2012CB821800);the CAS/SAFEA International Partnership Program for Creative Research Teams,Key Laboratory for Radio Astronomy,Chinese Academy of Sciences
Class I methanol masers are important tools for investigations of star formation throughout the Universe.Recently, a series of surveys for class I methanol masers at the 95 GHz transition toward samples of young stell...