Resolving the Polarized Dust Emission of the Disk around the Massive Star Powering the HH 80-81 Radio Jet
Here we present deep (16 μJy beam), very high (40 mas) angular resolution 1.14 mm, polarimetric, Atacama Large Millimeter/submillimeter Array (ALMA) observations toward the massive protostar driving the HH 80-81 radio jet. The observations clearly resolve the disk oriented perpendicularly to the rad...
| Autores: | , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión aceptada para publicación |
| Fecha de publicación: | 2018 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/214128 |
| Acceso en línea: | http://hdl.handle.net/10261/214128 |
| Access Level: | acceso abierto |
| Palabra clave: | Accretion, accretion disks ISM:individual objects (GGD27, HH 80-81, IRAS 18162-2048) Stars:formation |
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| dc.title.none.fl_str_mv |
Resolving the Polarized Dust Emission of the Disk around the Massive Star Powering the HH 80-81 Radio Jet |
| title |
Resolving the Polarized Dust Emission of the Disk around the Massive Star Powering the HH 80-81 Radio Jet |
| spellingShingle |
Resolving the Polarized Dust Emission of the Disk around the Massive Star Powering the HH 80-81 Radio Jet Girart, Josep Miquel Accretion, accretion disks ISM:individual objects (GGD27, HH 80-81, IRAS 18162-2048) Stars:formation |
| title_short |
Resolving the Polarized Dust Emission of the Disk around the Massive Star Powering the HH 80-81 Radio Jet |
| title_full |
Resolving the Polarized Dust Emission of the Disk around the Massive Star Powering the HH 80-81 Radio Jet |
| title_fullStr |
Resolving the Polarized Dust Emission of the Disk around the Massive Star Powering the HH 80-81 Radio Jet |
| title_full_unstemmed |
Resolving the Polarized Dust Emission of the Disk around the Massive Star Powering the HH 80-81 Radio Jet |
| title_sort |
Resolving the Polarized Dust Emission of the Disk around the Massive Star Powering the HH 80-81 Radio Jet |
| dc.creator.none.fl_str_mv |
Girart, Josep Miquel Fernández-López, Manuel Li, Zhi-Yun Yang, H. Estalella, Robert Anglada Pons, Guillem Josep Añez-López, N. Busquet, Gemma Carrasco-González, Carlos Curiel, Salvador Galván-Madrid, Roberto Gómez, José F. de Gregorio-Monsalvo, Itziar Jiménez-Serra, Izaskun Krasnopolsky, R. Martí, Josep Osorio, Mayra Padovani, Marco Rao, Ramprasad Rodríguez, Luis F. Torrelles, José M. |
| author |
Girart, Josep Miquel |
| author_facet |
Girart, Josep Miquel Fernández-López, Manuel Li, Zhi-Yun Yang, H. Estalella, Robert Anglada Pons, Guillem Josep Añez-López, N. Busquet, Gemma Carrasco-González, Carlos Curiel, Salvador Galván-Madrid, Roberto Gómez, José F. de Gregorio-Monsalvo, Itziar Jiménez-Serra, Izaskun Krasnopolsky, R. Martí, Josep Osorio, Mayra Padovani, Marco Rao, Ramprasad Rodríguez, Luis F. Torrelles, José M. |
| author_role |
author |
| author2 |
Fernández-López, Manuel Li, Zhi-Yun Yang, H. Estalella, Robert Anglada Pons, Guillem Josep Añez-López, N. Busquet, Gemma Carrasco-González, Carlos Curiel, Salvador Galván-Madrid, Roberto Gómez, José F. de Gregorio-Monsalvo, Itziar Jiménez-Serra, Izaskun Krasnopolsky, R. Martí, Josep Osorio, Mayra Padovani, Marco Rao, Ramprasad Rodríguez, Luis F. Torrelles, José M. |
| author2_role |
author author author author author author author author author author author author author author author author author author author author |
| dc.contributor.none.fl_str_mv |
Ministerio de Economía y Competitividad (España) European Commission Universidad Nacional Autónoma de México Consejo Nacional de Ciencia y Tecnología (México) NASA National Science Foundation (US) Science and Technology Facilities Council (UK) Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72] |
| dc.subject.none.fl_str_mv |
Accretion, accretion disks ISM:individual objects (GGD27, HH 80-81, IRAS 18162-2048) Stars:formation |
| topic |
Accretion, accretion disks ISM:individual objects (GGD27, HH 80-81, IRAS 18162-2048) Stars:formation |
| description |
Here we present deep (16 μJy beam), very high (40 mas) angular resolution 1.14 mm, polarimetric, Atacama Large Millimeter/submillimeter Array (ALMA) observations toward the massive protostar driving the HH 80-81 radio jet. The observations clearly resolve the disk oriented perpendicularly to the radio jet, with a radius of ≃0.″171 (∼291 au at 1.7 kpc distance). The continuum brightness temperature, the intensity profile, and the polarization properties clearly indicate that the disk is optically thick for a radius of R ≲ 170 au. The linear polarization of the dust emission is detected almost all along the disk, and its properties suggest that dust polarization is produced mainly by self-scattering. However, the polarization pattern presents a clear differentiation between the inner (optically thick) part of the disk and the outer (optically thin) region of the disk, with a sharp transition that occurs at a radius of ∼0.″1 (∼170 au). The polarization characteristics of the inner disk suggest that dust settling has not occurred yet with a maximum dust grain size between 50 and 500 μm. The outer part of the disk has a clear azimuthal pattern but with a significantly higher polarization fraction compared to the inner disk. This pattern is broadly consistent with the self-scattering of a radiation field that is beamed radially outward, as expected in the optically thin outer region, although contribution from non-spherical grains aligned with respect to the radiative flux cannot be excluded.© 2018. The American Astronomical Society. All rights reserved.. |
| publishDate |
2018 |
| dc.date.none.fl_str_mv |
2018 2020 2020 2020 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article http://purl.org/coar/resource_type/c_6501 Postprint info:eu-repo/semantics/acceptedVersion |
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article |
| status_str |
acceptedVersion |
| dc.identifier.none.fl_str_mv |
http://hdl.handle.net/10261/214128 |
| url |
http://hdl.handle.net/10261/214128 |
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Inglés |
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Inglés |
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info:eu-repo/semantics/openAccess |
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openAccess |
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IOP Publishing |
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IOP Publishing |
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reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC instname:Consejo Superior de Investigaciones Científicas (CSIC) |
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Consejo Superior de Investigaciones Científicas (CSIC) |
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Resolving the Polarized Dust Emission of the Disk around the Massive Star Powering the HH 80-81 Radio JetGirart, Josep MiquelFernández-López, ManuelLi, Zhi-YunYang, H.Estalella, RobertAnglada Pons, Guillem JosepAñez-López, N.Busquet, GemmaCarrasco-González, CarlosCuriel, SalvadorGalván-Madrid, RobertoGómez, José F.de Gregorio-Monsalvo, ItziarJiménez-Serra, IzaskunKrasnopolsky, R.Martí, JosepOsorio, MayraPadovani, MarcoRao, RamprasadRodríguez, Luis F.Torrelles, José M.Accretion, accretion disksISM:individual objects (GGD27, HH 80-81, IRAS 18162-2048)Stars:formationHere we present deep (16 μJy beam), very high (40 mas) angular resolution 1.14 mm, polarimetric, Atacama Large Millimeter/submillimeter Array (ALMA) observations toward the massive protostar driving the HH 80-81 radio jet. The observations clearly resolve the disk oriented perpendicularly to the radio jet, with a radius of ≃0.″171 (∼291 au at 1.7 kpc distance). The continuum brightness temperature, the intensity profile, and the polarization properties clearly indicate that the disk is optically thick for a radius of R ≲ 170 au. The linear polarization of the dust emission is detected almost all along the disk, and its properties suggest that dust polarization is produced mainly by self-scattering. However, the polarization pattern presents a clear differentiation between the inner (optically thick) part of the disk and the outer (optically thin) region of the disk, with a sharp transition that occurs at a radius of ∼0.″1 (∼170 au). The polarization characteristics of the inner disk suggest that dust settling has not occurred yet with a maximum dust grain size between 50 and 500 μm. The outer part of the disk has a clear azimuthal pattern but with a significantly higher polarization fraction compared to the inner disk. This pattern is broadly consistent with the self-scattering of a radiation field that is beamed radially outward, as expected in the optically thin outer region, although contribution from non-spherical grains aligned with respect to the radiative flux cannot be excluded.© 2018. The American Astronomical Society. All rights reserved..This paper makes use of the following ALMA data: ADS/ JAO.ALMA#2015.1.00480.S. ALMA is a partnership of ESO (representing its member states), NSF (USA) and NINS (Japan), together with NRC (Canada) and NSC and ASIAA (Taiwan) and KASI (Republic of Korea), in cooperation with the Republic of Chile. The Joint ALMA Observatory is operated by ESO, AUI/NRAO and NAOJ. J.M.G., R.E., G.A., N.A.L., G.B., J.F.G., M.O., and J.M.T. are supported by the MINECO (Spain) AYA2014-57369-C3 and AYA2017-84390-C2 coordinated grants. S.C. acknowledges support from DGAPA, UNAM, and CONACyT, Mexico. H.Y. is supported in part by ALMA SOS, and Z.L.Y. by NASA NNX14AB38G and NSF AST-1313083 and 1715259. M.P. acknowledges funding from the European Unions Horizon 2020 research and innovation programme under the Marie Sklodowska-Curie grant agreement No. 664931. I.J.S. acknowledges financial support from STFC through an Ernest Rutherford Fellowship (ST/L004801). J.M. acknowledges support from MINECO (Spain) AYA2016-76012-C3-3-P grant.IOP PublishingMinisterio de Economía y Competitividad (España)European CommissionUniversidad Nacional Autónoma de MéxicoConsejo Nacional de Ciencia y Tecnología (México)NASANational Science Foundation (US)Science and Technology Facilities Council (UK)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2020202020182020info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/214128reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2014-57369-C3info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2017-84390-C2info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/AYA2016-76012-C3-3-Pinfo:eu-repo/grantAgreement/EC/H2020/664931http://dx.doi.org/10.3847/2041-8213/aab76bSíinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2141282026-05-22T06:33:51Z |
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