A high-sensitivity 6.7 GHz methanol maser survey toward H_{\mathsf 2}O sources

2008/03/16 by Y. Xu, J. J. Li, K. Hachisuka +3
Physics and Astronomy · #Astrophysics and Star Formation Studies #Flux (metallurgy) #Galaxies: Formation, Evolution, Phenomena #Infrared #Luminosity #Maser #Methanol #Star formation #Superconducting and THz Device Technology #astro-ph

paper · pdf · doi:10.1051/0004-6361:200809472

published as Astron.Astrophys.485:729-734,2008 · Accepted for publication in A&A

arxiv created 2008/03/16 · openalex publication_date 2008/04/08 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06

Abstract

We present the results of a high sensitivity survey for 6.7 GHz methanol masers towards 22 GHz water masers using the 100 m Efflesberg telescope. A total of 89 sources were observed and 10 new methanol masers were detected. The new detections are relatively faint with peak flux densities of between 0.5 and 4.0 Jy. A nil detection rate from low-mass star forming regions enhances the conclusion that the masers are only associated with massive star formation. Even the faintest methanol maser in our survey, with a luminosity of , is associated with massive stars, as inferred from its infrared luminosity.

Citations

• AGLIMPSE-based search for 6.7-GHz methanol masers and the lifetime of their spectral features
• The Distance to the Perseus Spiral Arm in the Milky Way
• A survey of the Galactic plane for 6.7-GHz methanol masers -- I. l = 325 -335 ; b= - 0Formula53-0Formula53

Cited by

• 12.2-GHz methanol maser MMB follow-up catalogue – III. Longitude range 10° to 20°