（by XU Ye）

The first  research work by using the new installed Superconducting Spectroscopic  Array Receiver (SSAR) of 13.7m telescope in Delingha was accepted by ApJ  Supplement. The authors are mainly from Shanghai Astronomical  Observatory, University of Tasmania, Yunnan Observatory and Purple  Mountain Observatory.

Methanol masers  from a number of transitions are common in active star forming  regions(SFRs) and have been empirically classified into two categories  (class I and class II). Class I methanol masers are less well studied  than class II masers, but have recently become the focus of more intense  research. Further searches for class I methanol masers are very  important for our understanding of the range of environments and  circumstances in which they arise.

An overall of  214 target sources were selected by combining information from both the  Spitzer GLIMPSE and 1.1 mm BGPS survey catalogs. For the majority of  detections (43), this is the first identification of a class I methanol  maser associated with these sources. They show that the intensity of the  class I methanol maser emission is closely correlated with properties  (mass and beamaveraged column density) of the BGPS sources.

On the basis of  this observation, they developed a new criteria for targeting class I  methanol maser searches (Figure 1). Their expectation is that searches  using these criteria will detect 90% of the predicted number of class I  methanol masers from the full BGPS catalog (1000), and do so with a high  detection efficiency (75%). Refer to http://arxiv.org/abs/1202.6478 for  details.