Infrared polarimetry of three bipolar nebulae

Details Infrared polarimetry of three bipolar nebulae Infrared polarimetry of three bipolar nebulae

Feb 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978apj...220..159j&link_type=abstract

Astrophysical Journal, Part 1, vol. 220, Feb. 15, 1978, p. 159-164.

Astronomy and Astrophysics

Astrophysics

35

Infrared Radiation, Nebulae, Polarimetry, Polarization (Waves), Cosmic Dust, Linear Polarization, Thermal Emission, Wave Scattering, Wavelengths

Scientific paper

Measurements are presented of the linear polarization of three bipolar nebulae - CRL 2688 (the Egg Nebula), R Mon, and HD 44179 (the Red Rectangle) - at 1.2 and 2.2 microns and in the visible. All three sources show a decrease in polarization longward of 1 micron, which is interpreted in terms of scattering by dust grains. There is no evidence for grains larger than 0.3 micron in radius in any of the sources. For the Egg Nebula there is enough information to extract the intrinsic spectrum of the central source.

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