The far-infrared polarization of the Orion nebula

Details The far-infrared polarization of the Orion nebula The far-infrared polarization of the Orion nebula

Jul 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...357..132g&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 357, July 1, 1990, p. 132-137. Research supported by NSF.

Astronomy and Astrophysics

Astrophysics

44

Far Infrared Radiation, Interstellar Magnetic Fields, Molecular Clouds, Orion Nebula, Polarimeters, Cosmic Dust, Hydrogen Atoms, Line Spectra, Star Formation

Scientific paper

Polarization of the 100 micron thermal emission from 10 points in the Orion nebula has been measured. At one of the positions the degree, 5.7 percent, is the largest far-infrared polarization yet discovered. Except at a position in the barlike structure to the south, the position angles of the polarization vectors are well-ordered, suggesting that a uniform magnetic field threads the cloud. The magnetic field strength is estimated to be between 0.7 and 4 mG. The relationship of the degrees of polarization to the physical conditions in the cloud is discussed.

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