Discovery of variable infrared polarization in the star-forming region W33

Details Discovery of variable infrared polarization in the star-forming region W33 Discovery of variable infrared polarization in the star-forming region W33

Oct 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...361l..73h&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 361, Oct. 1, 1990, p. L73-L76.

Astronomy and Astrophysics

Astronomy

H Ii Regions, Infrared Radiation, Infrared Sources (Astronomy), Polarized Electromagnetic Radiation, Star Formation, Infrared Spectra, Molecular Spectra, Polarimetry, Radio Spectra

Scientific paper

The discovery of variable NIR polarization in the star-forming region W33C IRS 3 and IRS 1 is reported. The polarization for both of these sources varies on time scales of a few years. For IRS 3, the K polarization ranges from a low of about 1 percent in the late 1970s to about 20 percent in 1985. Between 1985 and 1989, the K polarization of IRS 1 dropped from about 19 percent to about 3 percent. The observed polarization properties and variations of both IRS 1 and IRS 3 can be explained by a clumpy disk in IRS 3.

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