Evidence for the cospatial origin of SiO masers in different rotational transitions

Details Evidence for the cospatial origin of SiO masers in different rotational transitions Evidence for the cospatial origin of SiO masers in different rotational transitions

Feb 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993apj...404l..71m&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 404, no. 2, p. L71-L74.

Astronomy and Astrophysics

Astronomy

20

Interstellar Masers, Late Stars, Polarization Characteristics, Silicon Oxides, Stellar Envelopes, Data Reduction, Radio Astronomy

Scientific paper

Three SiO maser transitions, v = 1, J = 3-2 (129 GHz); v = 1, J = 2-1 (86 GHz); and v = 1, J = 1-0 (43 GHz), have been observed from Mira, the prototype long-period variable. Polarization measurements indicate that these masers originate in the same volume of circumstellar gas. This conclusion is supported by similarities in fractional polarization, polarization position angle, and rotation of position angle with velocity.

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