Infrared spectropolarimetric observations of BNKL: the grain alignment mechanism

D. Aitken; J. Bailey; P.F. Roche; J. Hough

Infrared spectropolarimetric observations of BNKL: the grain alignment mechanism

D. Aitken, J. Bailey, P.F. Roche, J. Hough

Centre for Astrophysics Research (CAR)

Research output: Contribution to journal › Article › peer-review

Abstract

Spectropolarimetric observations between 8 - 13 μm of BN, IRc 2, 3, 4 and a further region in the Orion infrared complex BNKL are presented. Apart from IRc 2, all show evidence for absorption by aligned grains and have polarization position angles directed at a region close to IRc 2, a property also shared by the self-luminous source IRc 9 at short wavelengths. The evidence strongly suggests that grains are aligned by the intrinsic angular momentum of photons from IRc 2 and it is shown that this is a quantitatively plausible mechanism for the physical conditions in this part of Orion.

Original language	English
Pages (from-to)	815-831
Journal	Monthly Notices of the Royal Astronomical Society (MNRAS)
Volume	215
Issue number	4
Publication status	Published - 1985

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@article{4d00c858e27d4dd188f460bbbba682fc,

title = "Infrared spectropolarimetric observations of BNKL: the grain alignment mechanism",

abstract = "Spectropolarimetric observations between 8 - 13 μm of BN, IRc 2, 3, 4 and a further region in the Orion infrared complex BNKL are presented. Apart from IRc 2, all show evidence for absorption by aligned grains and have polarization position angles directed at a region close to IRc 2, a property also shared by the self-luminous source IRc 9 at short wavelengths. The evidence strongly suggests that grains are aligned by the intrinsic angular momentum of photons from IRc 2 and it is shown that this is a quantitatively plausible mechanism for the physical conditions in this part of Orion.",

author = "D. Aitken and J. Bailey and P.F. Roche and J. Hough",

note = "Original article can be found via: http://cdsads.u-strasbg.fr/ Copyright Royal Astronomical Society [Full text of this article is not available in the UHRA]",

year = "1985",

language = "English",

volume = "215",

pages = "815--831",

journal = "Monthly Notices of the Royal Astronomical Society (MNRAS)",

issn = "0035-8711",

publisher = "Oxford University Press (OUP)",

number = "4",

}

TY - JOUR

T1 - Infrared spectropolarimetric observations of BNKL

T2 - the grain alignment mechanism

AU - Aitken, D.

AU - Bailey, J.

AU - Roche, P.F.

AU - Hough, J.

N1 - Original article can be found via: http://cdsads.u-strasbg.fr/ Copyright Royal Astronomical Society [Full text of this article is not available in the UHRA]

PY - 1985

Y1 - 1985

N2 - Spectropolarimetric observations between 8 - 13 μm of BN, IRc 2, 3, 4 and a further region in the Orion infrared complex BNKL are presented. Apart from IRc 2, all show evidence for absorption by aligned grains and have polarization position angles directed at a region close to IRc 2, a property also shared by the self-luminous source IRc 9 at short wavelengths. The evidence strongly suggests that grains are aligned by the intrinsic angular momentum of photons from IRc 2 and it is shown that this is a quantitatively plausible mechanism for the physical conditions in this part of Orion.

AB - Spectropolarimetric observations between 8 - 13 μm of BN, IRc 2, 3, 4 and a further region in the Orion infrared complex BNKL are presented. Apart from IRc 2, all show evidence for absorption by aligned grains and have polarization position angles directed at a region close to IRc 2, a property also shared by the self-luminous source IRc 9 at short wavelengths. The evidence strongly suggests that grains are aligned by the intrinsic angular momentum of photons from IRc 2 and it is shown that this is a quantitatively plausible mechanism for the physical conditions in this part of Orion.

M3 - Article

SN - 0035-8711

VL - 215

SP - 815

EP - 831

JO - Monthly Notices of the Royal Astronomical Society (MNRAS)

JF - Monthly Notices of the Royal Astronomical Society (MNRAS)

IS - 4

ER -

Infrared spectropolarimetric observations of BNKL: the grain alignment mechanism

Abstract

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