Polarization of Astronomical Maser Radiation. IV. Circular Polarization Profiles | Zendy

Moshe Elitzur | Zendy

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Polarization of Astronomical Maser Radiation. IV. Circular Polarization Profiles

Author(s) -

Moshe Elitzur

Publication year - 1998

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 - 10.1086/306076

Subject(s) - maser , zeeman effect , physics , circular polarization , polarization (electrochemistry) , doppler effect , stokes parameters , radiation , saturation (graph theory) , astrophysics , optics , atomic physics , astronomy , magnetic field , chemistry , mathematics , quantum mechanics , combinatorics , scattering , microstrip

Profile comparison of the Stokes parameters $V$ and $I$ is a powerful toolfor maser data analysis, providing the first direct methods for unambiguousdetermination of (1) the maser saturation stage, (2) the amplification opticaldepth and intrinsic Doppler width of unsaturated masers, and (3) thecomparative magnitudes of Zeeman splitting and Doppler linewidth. Circularpolarization recently detected in OH 1720 MHz emission from the Galactic centerappears to provide the first direct evidence for maser saturation.Comment: 14 pages, 1 Postscript figures (included), uses aaspp4.sty. To appear in Astrophysical Journa

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