Intrinsic Properties of the Magnetically Collimated H2O Maser Jet of W43A | Zendy

W. H. T. Vlemmings | Zendy; P. J. Diamond | Zendy

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Intrinsic Properties of the Magnetically Collimated H₂O Maser Jet of W43A

Author(s) -

W. H. T. Vlemmings,

P. J. Diamond

Publication year - 2006

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/507679

Subject(s) - maser , physics , collimated light , polarization (electrochemistry) , linear polarization , brewster's angle , astrophysics , jet (fluid) , optics , laser , chemistry , brewster , thermodynamics

Water maser polarization observations in the precessing jet of W43A haverevealed that it is magnetically collimated. Here we present a detaileddescription of the physical properties of the water maser environment in thejet. We discuss the maser saturation level and beaming angle as well as theintrinsic temperatures and densities. Additionally, we show that thepolarization angle of the strongest red-shifted maser feature undergoes a fastrotation of 90 degrees across the maser. Along with the variation of linearpolarization fraction, this strongly supports the current theoreticaldescription of maser linear polarization.Comment: 4 pages, 4 figures, accepted for publication in ApJ Letter

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