Linear polarization maps of bipolar and cometary nebulae - A polarized source interpretation

Details Linear polarization maps of bipolar and cometary nebulae - A polarized source interpretation Linear polarization maps of bipolar and cometary nebulae - A polarized source interpretation

Sep 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991mnras.252..138g&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 252, Sept. 1, 1991, p. 138-150. Research supported by S

Astronomy and Astrophysics

Astronomy

22

Astronomical Maps, Light Scattering, Linear Polarization, Polarized Light, Reflection Nebulae, Bipolarity, Cosmic Dust, Interstellar Matter, Stellar Envelopes, Stellar Radiation

Scientific paper

A simple model of a polarized source is used to produce intensity isophotes and linear polarization maps simulating the scattering of light in bipolar nebulae. The results indicate that features such as polarization null points and bands of parallel vectors can be explained in terms of a polarized source without recourse to aligned grains. The particular case of the reflection nebula NGC 2261 is considered in detail and it is shown how the model can account for the observed variability in the polarization of this object.

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