Abstract

view Abstract Citations (43) References (23) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS A multitransitional study of linear polarization in SiO maser emission. Barvainis, R. ; Predmore, C. R. Abstract Linear polarization has been measured in up to four SiO maser transitions for seven sources, including the Orion maser source associated with IRc2. Polarization variability characteristics are reported for some sources which were observed several times over a 6 month period in the v = 1, J = 2-1 transition. Stars with low envelope expansion velocities appear to have more highly polarized masers than those with high expansion velocities. Comparison of polarization of individual maser features in different transitions indicates that emission from the same rotational transition in different vibrational states often arises in the same volume of gas, but that masers of different rotational transitions within the same vibrational state arise in different regions. For a given source, the profile-averaged fractional polarizations show a uniformity between different transitions, while the profile-averaged position angles do not in general appear to be correlated between transitions. Publication: The Astrophysical Journal Pub Date: January 1985 DOI: 10.1086/162835 Bibcode: 1985ApJ...288..694B Keywords: Interstellar Masers; Linear Polarization; Polarimetry; Electron Transitions; Radiant Flux Density; Silicon Oxides; Astrophysics full text sources ADS | data products SIMBAD (9)

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