The far-infrared polarization of the Orion nebula

D. P. Gonatas, G. A. Engargiola, R. H. Hildebrand, S. R. Platt, X. D. Wu, J. A. Davidson, G. Novak, D. K. Aitken, C. Smith

Research output: Contribution to journalArticle

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Abstract

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.
Original languageEnglish
Pages (from-to)132-137
JournalThe Astrophysical Journal
Volume357
DOIs
Publication statusPublished - 1 Jul 1990

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Orion nebula
polarization
threads
thermal emission
nebulae
field strength
magnetic field
magnetic fields

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Gonatas, D. P., Engargiola, G. A., Hildebrand, R. H., Platt, S. R., Wu, X. D., Davidson, J. A., ... Smith, C. (1990). The far-infrared polarization of the Orion nebula. The Astrophysical Journal, 357, 132-137. https://doi.org/10.1086/168898
Gonatas, D. P. ; Engargiola, G. A. ; Hildebrand, R. H. ; Platt, S. R. ; Wu, X. D. ; Davidson, J. A. ; Novak, G. ; Aitken, D. K. ; Smith, C. / The far-infrared polarization of the Orion nebula. In: The Astrophysical Journal. 1990 ; Vol. 357. pp. 132-137.
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abstract = "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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Gonatas, DP, Engargiola, GA, Hildebrand, RH, Platt, SR, Wu, XD, Davidson, JA, Novak, G, Aitken, DK & Smith, C 1990, 'The far-infrared polarization of the Orion nebula' The Astrophysical Journal, vol. 357, pp. 132-137. https://doi.org/10.1086/168898

The far-infrared polarization of the Orion nebula. / Gonatas, D. P.; Engargiola, G. A.; Hildebrand, R. H.; Platt, S. R.; Wu, X. D.; Davidson, J. A.; Novak, G.; Aitken, D. K.; Smith, C.

In: The Astrophysical Journal, Vol. 357, 01.07.1990, p. 132-137.

Research output: Contribution to journalArticle

TY - JOUR

T1 - The far-infrared polarization of the Orion nebula

AU - Gonatas, D. P.

AU - Engargiola, G. A.

AU - Hildebrand, R. H.

AU - Platt, S. R.

AU - Wu, X. D.

AU - Davidson, J. A.

AU - Novak, G.

AU - Aitken, D. K.

AU - Smith, C.

PY - 1990/7/1

Y1 - 1990/7/1

N2 - 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.

AB - 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.

KW - Far Infrared Radiation

KW - Interstellar Magnetic Fields

KW - Molecular Clouds

KW - Orion Nebula

KW - Polarimeters

KW - Cosmic Dust

KW - Hydrogen Atoms

KW - Line Spectra

KW - Star Formation

U2 - 10.1086/168898

DO - 10.1086/168898

M3 - Article

VL - 357

SP - 132

EP - 137

JO - The Astrophysical Journal

JF - The Astrophysical Journal

SN - 0004-637X

ER -

Gonatas DP, Engargiola GA, Hildebrand RH, Platt SR, Wu XD, Davidson JA et al. The far-infrared polarization of the Orion nebula. The Astrophysical Journal. 1990 Jul 1;357:132-137. https://doi.org/10.1086/168898