Spectropolarimetry of the 3-micron ice band in Elias 16 (Taurus Dark Cloud)

J. Hough; S. Sato; M. Tamura; T. Yamashita; A.D. McFadzean; M.F. Rouse; D.C.B. Whittet; N. Kaifu; H. Suzuki; T. Nagata; I. Gatley; J. Bailey

Spectropolarimetry of the 3-micron ice band in Elias 16 (Taurus Dark Cloud)

J. Hough, S. Sato, M. Tamura, T. Yamashita, A.D. McFadzean, M.F. Rouse, D.C.B. Whittet, N. Kaifu, H. Suzuki, T. Nagata, I. Gatley, J. Bailey

Centre for Astrophysics Research (CAR)

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

16 Citations (Scopus)

Abstract

Polarization data between 1.2 and 3.8 μm, including spectropolarimetry in the 3-μm ice feature, are presented for the highly reddened field star Elias 16 in the Taurus Dark Cloud. The polarization is observed to increase with optical depth in the ice feature in a manner similar to that found for the BN object, that is, consistent with dichroic absorption by aligned grains. The polarization feature can be well modelled assuming grains composed of ammonia-water ices, with the ratio of H2O:NH3 greater than 3:1. The continuum polarization can be well fitted over most of the observed wavelength range assuming a mix of silicate and graphite grains with size ≡0.13 μm.

Original language	English
Pages (from-to)	107-115
Journal	Monthly Notices of the Royal Astronomical Society (MNRAS)
Volume	230
Issue number	1
Publication status	Published - 1988

Cite this

@article{f6d3a14940f64af2b4ab149bf1c02c9f,

title = "Spectropolarimetry of the 3-micron ice band in Elias 16 (Taurus Dark Cloud)",

abstract = "Polarization data between 1.2 and 3.8 μm, including spectropolarimetry in the 3-μm ice feature, are presented for the highly reddened field star Elias 16 in the Taurus Dark Cloud. The polarization is observed to increase with optical depth in the ice feature in a manner similar to that found for the BN object, that is, consistent with dichroic absorption by aligned grains. The polarization feature can be well modelled assuming grains composed of ammonia-water ices, with the ratio of H2O:NH3 greater than 3:1. The continuum polarization can be well fitted over most of the observed wavelength range assuming a mix of silicate and graphite grains with size ≡0.13 μm.",

author = "J. Hough and S. Sato and M. Tamura and T. Yamashita and A.D. McFadzean and M.F. Rouse and D.C.B. Whittet and N. Kaifu and H. Suzuki and T. Nagata and I. Gatley and J. Bailey",

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 = "1988",

language = "English",

volume = "230",

pages = "107--115",

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

issn = "0035-8711",

publisher = "Oxford University Press (OUP)",

number = "1",

}

TY - JOUR

T1 - Spectropolarimetry of the 3-micron ice band in Elias 16 (Taurus Dark Cloud)

AU - Hough, J.

AU - Sato, S.

AU - Tamura, M.

AU - Yamashita, T.

AU - McFadzean, A.D.

AU - Rouse, M.F.

AU - Whittet, D.C.B.

AU - Kaifu, N.

AU - Suzuki, H.

AU - Nagata, T.

AU - Gatley, I.

AU - Bailey, 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 - 1988

Y1 - 1988

N2 - Polarization data between 1.2 and 3.8 μm, including spectropolarimetry in the 3-μm ice feature, are presented for the highly reddened field star Elias 16 in the Taurus Dark Cloud. The polarization is observed to increase with optical depth in the ice feature in a manner similar to that found for the BN object, that is, consistent with dichroic absorption by aligned grains. The polarization feature can be well modelled assuming grains composed of ammonia-water ices, with the ratio of H2O:NH3 greater than 3:1. The continuum polarization can be well fitted over most of the observed wavelength range assuming a mix of silicate and graphite grains with size ≡0.13 μm.

AB - Polarization data between 1.2 and 3.8 μm, including spectropolarimetry in the 3-μm ice feature, are presented for the highly reddened field star Elias 16 in the Taurus Dark Cloud. The polarization is observed to increase with optical depth in the ice feature in a manner similar to that found for the BN object, that is, consistent with dichroic absorption by aligned grains. The polarization feature can be well modelled assuming grains composed of ammonia-water ices, with the ratio of H2O:NH3 greater than 3:1. The continuum polarization can be well fitted over most of the observed wavelength range assuming a mix of silicate and graphite grains with size ≡0.13 μm.

M3 - Article

SN - 0035-8711

VL - 230

SP - 107

EP - 115

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

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

IS - 1

ER -

Spectropolarimetry of the 3-micron ice band in Elias 16 (Taurus Dark Cloud)

Abstract

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