Infrared polarimetry of radio luminous OH/IR stars

Details Infrared polarimetry of radio luminous OH/IR stars Infrared polarimetry of radio luminous OH/IR stars

Jul 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990aj....100..274j&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 100, July 1990, p. 274-279. Research supported by the University of Minnesota.

Other

14

Giant Stars, Hydroxyl Emission, Infrared Stars, Late Stars, Polarimetry, Radio Stars, Energy Distribution, Interstellar Extinction, Stellar Luminosity

Scientific paper

Polarimetry from 1 to 2.5 microns is presented for 14 radio luminous OH/IR stars. All of the stars show significant polarization. Four stars show only interstellar polarization, four show a combination of interstellar and intrinsic polarization, and six were too red to measure at any wavelength other than 2.2 microns. The interstellar polarization is substantial, and clearly indicates that interstellar extinction is a significant factor in the observed energy distributions of these stars. The intrinsic component is also substantial, and requires large asymmetries in the geometry of the circumstellar dust shells.

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