Investigating high-mass star formation through maser surveys

Details Investigating high-mass star formation through maser surveys Investigating high-mass star formation through maser surveys

2007-05-21

arxiv.org/abs/0705.2906v1

Astronomy and Astrophysics

Astrophysics

5 pages, invited presentation at IAU242 "Astrophysical Masers and their environments"

Scientific paper

10.1017/S1743921307012999

Interstellar masers are unique probes of the environments in which they arise. In studies of high-mass star formation their primary function has been as signposts of these regions and they have been used as probes of the kinematics and physical conditions in only a few sources. With a few notable exceptions, we know relatively little about the evolutionary phase the different maser species trace, nor their location with respect to other star formation tracers. While detailed studies of a small number of maser regions can reveal much about them, other information can only be obtained through large, systematic searches. In particular, such surveys are vital in efforts to determine an evolutionary sequence for the common maser species, and there is growing evidence that methanol masers may trace an earlier phase than the other common maser species of OH and water.

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