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2005MNRAS.359.1498E - Mon. Not. R. Astron. Soc., 359, 1498-1516 (2005/June-1)
The relationship between class I and class II methanol masers.
ELLINGSEN S.P.
Abstract (from CDS):
There is no evidence of an anticorrelation between either the velocity range, or peak flux density of the class I and II transitions, contrary to suggestions from previous studies. The majority of class I methanol maser sources have a velocity range that partly overlaps with the class II maser transitions. The presence of a class I methanol maser associated with a class II maser source is not correlated with the presence (or absence) of main-line OH or water masers. Investigations of the properties of the infrared emission associated with the maser sources shows no significant difference between those class II methanol masers with an associated class I maser and those without. This may be consistent with the hypothesis that the objects responsible for driving class I methanol masers are generally not those that produce main-line OH, water or class II methanol masers.
Abstract Copyright: 2005 RAS
Journal keyword(s): masers - ISM: molecules - radio lines: general - stars: formation
VizieR on-line data: <Available at CDS (J/MNRAS/359/1498): table1.dat table2.dat table3.dat table4.dat table5.dat>
Nomenclature: Table 5: [E2005] LLL.ll+B.bb, [E2005] LLL.lll+B.bbb, N=86.
Simbad objects: 8
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