Stellar OH masers with polarized features at intermediate velocities

Details Stellar OH masers with polarized features at intermediate velocities Stellar OH masers with polarized features at intermediate velocities

Sep 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984a%26a...138..343u&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 138, no. 2, Sept. 1984, p. 343-352.

Astronomy and Astrophysics

Astrophysics

16

Hydroxyl Emission, Interstellar Masers, Late Stars, Polarization Characteristics, Radial Velocity, Stellar Spectrophotometry, Astronomical Models, Circular Polarization, M Stars, Stellar Magnetic Fields, Stellar Mass Ejection, Variable Stars

Scientific paper

Peculiar profiles were discovered in EY And, one of five new sources found in an OH maser search. The 1612-MHz emission has a typical, double-peak structure, but the main-line masers show polarized features at the central velocity of the 1612-MHz emission. The line shape of the SiO maser resembles that of the 1665-MHz emission. Maser sources with polarized OH emission at intermediate velocities are discussed in the context of two kinematic models. Expanding envelopes with a smooth velocity field would require some of the polarized OH features to arise in the innermost part of the envelopes. Distortion of a smooth outflow by interaction with the ambient gas cannot explain the peculiar OH emission. It is interpreted as a fluctuation of the velocity field of the expanding envelope. The polarized features in both main-line spectra have the same sense of circular polarization when they appear at nearly the same velocity. This evidence is consistent with the mechanism proposed by Cook and Shklovskii.

Affiliated with

Also associated with

No associations

Rating

Stellar OH masers with polarized features at intermediate velocities does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Stellar OH masers with polarized features at intermediate velocities, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stellar OH masers with polarized features at intermediate velocities will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1389495