Infrared polarimetry of the NGC 6334 V bipolar nebula

Astronomy and Astrophysics – Astronomy

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H Ii Regions, Infrared Sources (Astronomy), Reflection Nebulae, Molecular Clouds, Polarization, Stellar Structure

Scientific paper

Exceptionally high degrees (up to about 100 percent) of polarization were observed in the L-prime band (3.8 microns) toward the NGC 6334 V bipolar nebula. The observed symmetric polarization pattern indicates that the nebula is a reflection nebula consisting of two lobes illuminated by a central obscured star. The distribution of polarization requires that one of the lobes consist of a lemon-shaped cavity which scatters light mainly at its surface, whereas a conical cavity model is appropriate for the other lobe. This asymmetry of the lobes is probably due to a density gradient in the ambient cloud material in this region.

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