Recently, our telescope was used to search for class I methanol masers from the 95GHz transition. 240 target sources (selected from Spitzer GLIMPSE and 1.1mm BGPS catalogs) were observed and 63 sources were detected for class I methanol maser emission. The sources with class I methanol usually have higher column density and larger flux density than those without them. We expect to detect 90% of the predicted number of class I methanol masers from the full BGPS catalog (~1000).

Set of spectra of the detected 95 GHz methanol masers in low-mass sources: sources that class I methanol masers only have 95 GHz detected thus far (newly identified class I methanol masers). The dotted lines with different colors represent Gaussian fits to the different velocity components. (A color version of this figure is available in the online journal.)

The paper was accepted for publication in ApJ (Gan, Cong-Gui et al. 2012 ApJ 763,No.1)  http://159.226.100.157/sess_8532/http182apps.webofknowledge.com/full_record.do?product=WOS&search_mode=GeneralSearch&qid=1&SID=R2gf8G@@AnjoEL3GoMa&page=1&doc=1.