Polarization of stars in R-associations - Observational data

Details Polarization of stars in R-associations - Observational data Polarization of stars in R-associations - Observational data

Dec 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982sva....26..673v&link_type=abstract

(Astronomicheskii Zhurnal, vol. 59, Nov.-Dec. 1982, p. 1115-1123) Soviet Astronomy (ISSN 0038-5301), vol. 26, Nov.-Dec. 1982, p.

Astronomy and Astrophysics

Astronomy

2

Cosmic Dust, Interstellar Magnetic Fields, Polarized Light, Reflection Nebulae, Stellar Evolution, Emission Spectra, Interstellar Matter, Line Spectra, Stellar Radiation, Stellar Spectra, Tables (Data)

Scientific paper

Polarimetric data are assembled for 95 stars that are illuminating reflection nebulae. Most of these belong to 18 standard R-associations. The observed dependence of the percentage polarization P on wavelength and color excess E(B-V) suggest that the unpolarized light of R-association members may become polarized as it traverses an ensemble of dust grains aligned by a magnetic field which in some cases (Tau R2, Ori R1/R2, Sco R1, Cep R2) is intrinsic to the association. In certain R-associations the grain size is variable and the stochastic magnetic field component fluctuates on a scale of 10-30 pc.

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