Near-infrared circular polarimetry and correlation diagrams in the orion becklin-neugebauer/kleinman-low region: contribution of dichroic extinction

T. Fukue; M. Tamura; R. Kandori; N. Kusakabe; J. H. Hough; P. W. Lucas; J. Bailey; D. C B Whittet; Y. Nakajima; J. Hashimoto; T. Nagata

doi:10.1088/0004-637X/692/2/L88

Near-infrared circular polarimetry and correlation diagrams in the orion becklin-neugebauer/kleinman-low region: contribution of dichroic extinction

T. Fukue^*, M. Tamura, R. Kandori, N. Kusakabe, J. H. Hough, P. W. Lucas, J. Bailey, D. C B Whittet, Y. Nakajima, J. Hashimoto, T. Nagata

^*Corresponding author for this work

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

19 Citations (Scopus)

Abstract

We present a deep circular polarization (CP) image of the Orion Becklin-Neugebauer (BN)/Kleinman-Low (KL) nebula in the K_s band and correlations of CP, linear polarization (LP), and H - K_s color representing extinction. The CP image clearly reveals the quadrupolar structure around the massive star IRc2, rather than BN. H - K_s color is well correlated with CP. A simple relation between dichroic extinction, color excess, CP, and LP is derived. The observed correlation between the Stokes parameters and the color excess agrees with the derived relation, and suggests a major contribution of dichroic extinction to the production of CP in this region, indicating the wide existence of aligned grains.

Original language	English
Journal	Astrophysical Journal
Volume	692
Issue number	2
DOIs	https://doi.org/10.1088/0004-637X/692/2/L88
Publication status	Published - 2009

Keywords

circumstellar matter
dust, extinction
infrared: stars
ISM: individual (Orion Kleinman-Low)
polarization
stars: formation

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10.1088/0004-637X/692/2/L88

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Fukue, T., Tamura, M., Kandori, R., Kusakabe, N., Hough, J. H., Lucas, P. W., Bailey, J., Whittet, D. C. B., Nakajima, Y., Hashimoto, J., & Nagata, T. (2009). Near-infrared circular polarimetry and correlation diagrams in the orion becklin-neugebauer/kleinman-low region: contribution of dichroic extinction. Astrophysical Journal, 692(2). https://doi.org/10.1088/0004-637X/692/2/L88

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title = "Near-infrared circular polarimetry and correlation diagrams in the orion becklin-neugebauer/kleinman-low region: contribution of dichroic extinction",

abstract = "We present a deep circular polarization (CP) image of the Orion Becklin-Neugebauer (BN)/Kleinman-Low (KL) nebula in the Ks band and correlations of CP, linear polarization (LP), and H - Ks color representing extinction. The CP image clearly reveals the quadrupolar structure around the massive star IRc2, rather than BN. H - Ks color is well correlated with CP. A simple relation between dichroic extinction, color excess, CP, and LP is derived. The observed correlation between the Stokes parameters and the color excess agrees with the derived relation, and suggests a major contribution of dichroic extinction to the production of CP in this region, indicating the wide existence of aligned grains.",

keywords = "circumstellar matter, dust, extinction, infrared: stars, ISM: individual (Orion Kleinman-Low), polarization, stars: formation",

author = "T. Fukue and M. Tamura and R. Kandori and N. Kusakabe and Hough, {J. H.} and Lucas, {P. W.} and J. Bailey and Whittet, {D. C B} and Y. Nakajima and J. Hashimoto and T. Nagata",

year = "2009",

doi = "10.1088/0004-637X/692/2/L88",

language = "English",

volume = "692",

journal = "Astrophysical Journal",

issn = "0004-637X",

publisher = "IOP Publishing",

number = "2",

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Fukue, T, Tamura, M, Kandori, R, Kusakabe, N, Hough, JH, Lucas, PW, Bailey, J, Whittet, DCB, Nakajima, Y, Hashimoto, J & Nagata, T 2009, 'Near-infrared circular polarimetry and correlation diagrams in the orion becklin-neugebauer/kleinman-low region: contribution of dichroic extinction', Astrophysical Journal, vol. 692, no. 2. https://doi.org/10.1088/0004-637X/692/2/L88

TY - JOUR

T1 - Near-infrared circular polarimetry and correlation diagrams in the orion becklin-neugebauer/kleinman-low region

T2 - contribution of dichroic extinction

AU - Fukue, T.

AU - Tamura, M.

AU - Kandori, R.

AU - Kusakabe, N.

AU - Hough, J. H.

AU - Lucas, P. W.

AU - Bailey, J.

AU - Whittet, D. C B

AU - Nakajima, Y.

AU - Hashimoto, J.

AU - Nagata, T.

PY - 2009

Y1 - 2009

N2 - We present a deep circular polarization (CP) image of the Orion Becklin-Neugebauer (BN)/Kleinman-Low (KL) nebula in the Ks band and correlations of CP, linear polarization (LP), and H - Ks color representing extinction. The CP image clearly reveals the quadrupolar structure around the massive star IRc2, rather than BN. H - Ks color is well correlated with CP. A simple relation between dichroic extinction, color excess, CP, and LP is derived. The observed correlation between the Stokes parameters and the color excess agrees with the derived relation, and suggests a major contribution of dichroic extinction to the production of CP in this region, indicating the wide existence of aligned grains.

AB - We present a deep circular polarization (CP) image of the Orion Becklin-Neugebauer (BN)/Kleinman-Low (KL) nebula in the Ks band and correlations of CP, linear polarization (LP), and H - Ks color representing extinction. The CP image clearly reveals the quadrupolar structure around the massive star IRc2, rather than BN. H - Ks color is well correlated with CP. A simple relation between dichroic extinction, color excess, CP, and LP is derived. The observed correlation between the Stokes parameters and the color excess agrees with the derived relation, and suggests a major contribution of dichroic extinction to the production of CP in this region, indicating the wide existence of aligned grains.

KW - circumstellar matter

KW - dust, extinction

KW - infrared: stars

KW - ISM: individual (Orion Kleinman-Low)

KW - polarization

KW - stars: formation

UR - http://www.scopus.com/inward/record.url?scp=64849108393&partnerID=8YFLogxK

U2 - 10.1088/0004-637X/692/2/L88

DO - 10.1088/0004-637X/692/2/L88

M3 - Article

AN - SCOPUS:64849108393

SN - 0004-637X

VL - 692

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 2

ER -

Near-infrared circular polarimetry and correlation diagrams in the orion becklin-neugebauer/kleinman-low region: contribution of dichroic extinction

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