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dc.contributor.authorHough, James
dc.contributor.authorKwon, Jungmi
dc.contributor.authorTamura, Motohide
dc.date.accessioned2017-05-26T10:26:12Z
dc.date.available2017-05-26T10:26:12Z
dc.date.issued2016-06-17
dc.identifier.citationHough , J , Kwon , J & Tamura , M 2016 , ' Near-infrared Imaging Polarimetry of GGD 27: Circular Polarization and Magnetic Field Structures ' The Astrophysical Journal , vol. 824 , no. 2 , pp. 1-14 . https://doi.org/10.3847/0004-637X/824/2/95
dc.identifier.issn0004-637X
dc.identifier.otherPURE: 11199443
dc.identifier.otherPURE UUID: cb54f900-ee3a-4042-84b9-53c18da30c60
dc.identifier.otherScopus: 84978371891
dc.identifier.urihttp://hdl.handle.net/2299/18222
dc.descriptionJungmi Kwon, et al, 'NEAR-INFRARED IMAGING POLARIMETRY OF GGD 27: CIRCULAR POLARIZATION AND MAGNETIC FIELD STRUCTURES', The Astrophysical Journal, 824:95 (14pp), June 2016. doi:10.3847/0004-637X/824/2/95. © 2016. The American Astronomical Society. All rights reserved.
dc.description.abstractNear-infrared imaging polarimetry in the J, H, and K s bands was carried out for GGD 27 in the dark cloud Lynds 291. Details of an infrared reflection nebula associated with the optical nebulosity GGD 27 and the infrared nebula GGD 27 IRS are presented. Aperture photometry of 1263 point-like sources, detected in all three bands, was used to classify them based on a color-color diagram, and the linear polarization of several hundred sources was determined, with the latter used to map the magnetic field structure around GGD 27. This field, around GGD 27 IRS, appears to be associated with the extended CO outflow of IRAS 18162-2048 however, there are partly distorted or bent components in the field. The Chandrasekhar-Fermi method gives an estimate of the magnetic field strength as ˜90 μG. A region associated with GGD 27 IRS is discovered to have a circular polarization in the range of ˜2%-11% in the K s band. The circular polarization has an asymmetric positive/negative pattern and extends out to ˜ 120″ or 1.0 pc. The circular and linear polarization patterns are explained as resulting from a combination of dense inner and fainter outer lobes, suggesting episodic outflowen
dc.format.extent14
dc.language.isoeng
dc.relation.ispartofThe Astrophysical Journal
dc.rights/dk/atira/pure/core/openaccesspermission/open
dc.subjectcircumstellar matter
dc.subjectinfrared:stars
dc.subjectISM: individual objects (GGC 27)
dc.subjectISM: structure
dc.subjectpolarization
dc.subjectstars: formation
dc.titleNear-infrared Imaging Polarimetry of GGD 27: Circular Polarization and Magnetic Field Structuresen
dc.contributor.institutionCentre for Astrophysics Research
dc.description.statusPeer reviewed
dc.description.versiontypeFinal Published version
dcterms.dateAccepted2016-04-18
rioxxterms.versionVoR
rioxxterms.versionofrecordhttps://doi.org/10.3847/0004-637X/824/2/95
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue
herts.rights.accesstypeopenAccess


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