The fine spatial structure of methanol masers

Authors
Slysh, VI Val'tts, IE Kalenskii, SV Golubev, VV
Citation
Vi. Slysh et al., The fine spatial structure of methanol masers, ASTRON REP, 43(12), 1999, pp. 785-796
Citations number
30
Categorie Soggetti
Space Sciences
Journal title
ASTRONOMY REPORTS
ISSN journal
10637729 → ACNP
Volume
43
Issue
12
Year of publication
1999
Pages
785 - 796
Database
ISI
SICI code
1063-7729(199912)43:12<785:TFSSOM>2.0.ZU;2-8
Abstract
The results of mapping the structure of five methanol masers (M8E, W33Met, G14.33-0.64, L379IRS3, and GGD27) in the 7(0)-6(1) A(+) transition at 7 mm with an angular resolution of 0." 1 are presented. Some masers form chains of bright, unresolved maser spots, extended along curved lines or arcs. The length of these arcs is from 20 to 1000 AU. The brightness temperatures of the strongest masers exceed 3.6 x 10(8) K. The distributions of the maser spots are consistent with the hypothesis that they originate at interfaces between molecular outflows and ambient molecular clouds.