Aligned grains and scattered light found in gaps of planet-forming disk
- Autores
- Stephens, Ian; Lin, Zhe Yu Daniel; Fernandez Lopez, Manuel; Li, Zhi Yun; Looney, Leslie W.; Yang, Haifeng; Harrison, Rachel; Kataoka, Akimasa; Carrasco Gonzalez, Carlos; Okuzumi, Satoshi; Tazaki, Ryo
- Año de publicación
- 2023
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Polarized (sub)millimetre emission from dust grains in circumstellar disks was initially thought to be because of grains aligned with the magnetic field1,2. However, higher-resolution multi-wavelength observations3-5 and improved models6-10 found that this polarization is dominated by self-scattering at shorter wavelengths (for example, 870 µm) and by grains aligned with something other than magnetic fields at longer wavelengths (for example, 3 mm). Nevertheless, the polarization signal is expected to depend on the underlying substructure11-13, and observations until now have been unable to resolve polarization in multiple rings and gaps. HL Tau, a protoplanetary disk located 147.3 ± 0.5 pc away14, is the brightest class I or class II disk at millimetre-submillimetre wavelengths. Here we show deep, high-resolution polarization observations of HL Tau at 870 µm, resolving polarization in both the rings and the gaps. We find that the gaps have polarization angles with a notable azimuthal component and a higher polarization fraction than the rings. Our models show that the disk polarization is due to both scattering and emission from the aligned effectively prolate grains. The intrinsic polarization of aligned dust grains is probably more than 10%, which is much higher than that expected in low-resolution observations (about 1%). Asymmetries and dust features that are not seen in non-polarimetric observations are seen in the polarization observations.
Fil: Stephens, Ian. Worcester State University; Estados Unidos
Fil: Lin, Zhe Yu Daniel. University of Virginia; Estados Unidos
Fil: Fernandez Lopez, Manuel. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomía; Argentina
Fil: Li, Zhi Yun. University of Virginia; Estados Unidos
Fil: Looney, Leslie W.. University of Illinois. Urbana - Champaign; Estados Unidos
Fil: Yang, Haifeng. Peking University; China
Fil: Harrison, Rachel. Monash University; Australia
Fil: Kataoka, Akimasa. National Astronomical Observatory Of Japan; Japón
Fil: Carrasco Gonzalez, Carlos. Instituto de Radioastronomía y Astrofísica; México
Fil: Okuzumi, Satoshi. Tokyo Institute of Technology; Japón
Fil: Tazaki, Ryo. Universite Grenoble Alpes; Francia - Materia
-
ALMA
Polarized (sub)millimetre emission
circumstellar disks - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/251910
Ver los metadatos del registro completo
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Aligned grains and scattered light found in gaps of planet-forming diskStephens, IanLin, Zhe Yu DanielFernandez Lopez, ManuelLi, Zhi YunLooney, Leslie W.Yang, HaifengHarrison, RachelKataoka, AkimasaCarrasco Gonzalez, CarlosOkuzumi, SatoshiTazaki, RyoALMAPolarized (sub)millimetre emissioncircumstellar diskshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Polarized (sub)millimetre emission from dust grains in circumstellar disks was initially thought to be because of grains aligned with the magnetic field1,2. However, higher-resolution multi-wavelength observations3-5 and improved models6-10 found that this polarization is dominated by self-scattering at shorter wavelengths (for example, 870 µm) and by grains aligned with something other than magnetic fields at longer wavelengths (for example, 3 mm). Nevertheless, the polarization signal is expected to depend on the underlying substructure11-13, and observations until now have been unable to resolve polarization in multiple rings and gaps. HL Tau, a protoplanetary disk located 147.3 ± 0.5 pc away14, is the brightest class I or class II disk at millimetre-submillimetre wavelengths. Here we show deep, high-resolution polarization observations of HL Tau at 870 µm, resolving polarization in both the rings and the gaps. We find that the gaps have polarization angles with a notable azimuthal component and a higher polarization fraction than the rings. Our models show that the disk polarization is due to both scattering and emission from the aligned effectively prolate grains. The intrinsic polarization of aligned dust grains is probably more than 10%, which is much higher than that expected in low-resolution observations (about 1%). Asymmetries and dust features that are not seen in non-polarimetric observations are seen in the polarization observations.Fil: Stephens, Ian. Worcester State University; Estados UnidosFil: Lin, Zhe Yu Daniel. University of Virginia; Estados UnidosFil: Fernandez Lopez, Manuel. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomía; ArgentinaFil: Li, Zhi Yun. University of Virginia; Estados UnidosFil: Looney, Leslie W.. University of Illinois. Urbana - Champaign; Estados UnidosFil: Yang, Haifeng. Peking University; ChinaFil: Harrison, Rachel. Monash University; AustraliaFil: Kataoka, Akimasa. National Astronomical Observatory Of Japan; JapónFil: Carrasco Gonzalez, Carlos. Instituto de Radioastronomía y Astrofísica; MéxicoFil: Okuzumi, Satoshi. Tokyo Institute of Technology; JapónFil: Tazaki, Ryo. Universite Grenoble Alpes; FranciaNature Publishing Group2023-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/251910Stephens, Ian; Lin, Zhe Yu Daniel; Fernandez Lopez, Manuel; Li, Zhi Yun; Looney, Leslie W.; et al.; Aligned grains and scattered light found in gaps of planet-forming disk; Nature Publishing Group; Nature; 623; 7988; 11-2023; 705-7080028-0836CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://www.nature.com/articles/s41586-023-06648-7info:eu-repo/semantics/altIdentifier/doi/10.1038/s41586-023-06648-7info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:34:18Zoai:ri.conicet.gov.ar:11336/251910instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:34:18.913CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Aligned grains and scattered light found in gaps of planet-forming disk |
title |
Aligned grains and scattered light found in gaps of planet-forming disk |
spellingShingle |
Aligned grains and scattered light found in gaps of planet-forming disk Stephens, Ian ALMA Polarized (sub)millimetre emission circumstellar disks |
title_short |
Aligned grains and scattered light found in gaps of planet-forming disk |
title_full |
Aligned grains and scattered light found in gaps of planet-forming disk |
title_fullStr |
Aligned grains and scattered light found in gaps of planet-forming disk |
title_full_unstemmed |
Aligned grains and scattered light found in gaps of planet-forming disk |
title_sort |
Aligned grains and scattered light found in gaps of planet-forming disk |
dc.creator.none.fl_str_mv |
Stephens, Ian Lin, Zhe Yu Daniel Fernandez Lopez, Manuel Li, Zhi Yun Looney, Leslie W. Yang, Haifeng Harrison, Rachel Kataoka, Akimasa Carrasco Gonzalez, Carlos Okuzumi, Satoshi Tazaki, Ryo |
author |
Stephens, Ian |
author_facet |
Stephens, Ian Lin, Zhe Yu Daniel Fernandez Lopez, Manuel Li, Zhi Yun Looney, Leslie W. Yang, Haifeng Harrison, Rachel Kataoka, Akimasa Carrasco Gonzalez, Carlos Okuzumi, Satoshi Tazaki, Ryo |
author_role |
author |
author2 |
Lin, Zhe Yu Daniel Fernandez Lopez, Manuel Li, Zhi Yun Looney, Leslie W. Yang, Haifeng Harrison, Rachel Kataoka, Akimasa Carrasco Gonzalez, Carlos Okuzumi, Satoshi Tazaki, Ryo |
author2_role |
author author author author author author author author author author |
dc.subject.none.fl_str_mv |
ALMA Polarized (sub)millimetre emission circumstellar disks |
topic |
ALMA Polarized (sub)millimetre emission circumstellar disks |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Polarized (sub)millimetre emission from dust grains in circumstellar disks was initially thought to be because of grains aligned with the magnetic field1,2. However, higher-resolution multi-wavelength observations3-5 and improved models6-10 found that this polarization is dominated by self-scattering at shorter wavelengths (for example, 870 µm) and by grains aligned with something other than magnetic fields at longer wavelengths (for example, 3 mm). Nevertheless, the polarization signal is expected to depend on the underlying substructure11-13, and observations until now have been unable to resolve polarization in multiple rings and gaps. HL Tau, a protoplanetary disk located 147.3 ± 0.5 pc away14, is the brightest class I or class II disk at millimetre-submillimetre wavelengths. Here we show deep, high-resolution polarization observations of HL Tau at 870 µm, resolving polarization in both the rings and the gaps. We find that the gaps have polarization angles with a notable azimuthal component and a higher polarization fraction than the rings. Our models show that the disk polarization is due to both scattering and emission from the aligned effectively prolate grains. The intrinsic polarization of aligned dust grains is probably more than 10%, which is much higher than that expected in low-resolution observations (about 1%). Asymmetries and dust features that are not seen in non-polarimetric observations are seen in the polarization observations. Fil: Stephens, Ian. Worcester State University; Estados Unidos Fil: Lin, Zhe Yu Daniel. University of Virginia; Estados Unidos Fil: Fernandez Lopez, Manuel. Provincia de Buenos Aires. Gobernación. Comisión de Investigaciones Científicas. Instituto Argentino de Radioastronomía. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata. Instituto Argentino de Radioastronomía; Argentina Fil: Li, Zhi Yun. University of Virginia; Estados Unidos Fil: Looney, Leslie W.. University of Illinois. Urbana - Champaign; Estados Unidos Fil: Yang, Haifeng. Peking University; China Fil: Harrison, Rachel. Monash University; Australia Fil: Kataoka, Akimasa. National Astronomical Observatory Of Japan; Japón Fil: Carrasco Gonzalez, Carlos. Instituto de Radioastronomía y Astrofísica; México Fil: Okuzumi, Satoshi. Tokyo Institute of Technology; Japón Fil: Tazaki, Ryo. Universite Grenoble Alpes; Francia |
description |
Polarized (sub)millimetre emission from dust grains in circumstellar disks was initially thought to be because of grains aligned with the magnetic field1,2. However, higher-resolution multi-wavelength observations3-5 and improved models6-10 found that this polarization is dominated by self-scattering at shorter wavelengths (for example, 870 µm) and by grains aligned with something other than magnetic fields at longer wavelengths (for example, 3 mm). Nevertheless, the polarization signal is expected to depend on the underlying substructure11-13, and observations until now have been unable to resolve polarization in multiple rings and gaps. HL Tau, a protoplanetary disk located 147.3 ± 0.5 pc away14, is the brightest class I or class II disk at millimetre-submillimetre wavelengths. Here we show deep, high-resolution polarization observations of HL Tau at 870 µm, resolving polarization in both the rings and the gaps. We find that the gaps have polarization angles with a notable azimuthal component and a higher polarization fraction than the rings. Our models show that the disk polarization is due to both scattering and emission from the aligned effectively prolate grains. The intrinsic polarization of aligned dust grains is probably more than 10%, which is much higher than that expected in low-resolution observations (about 1%). Asymmetries and dust features that are not seen in non-polarimetric observations are seen in the polarization observations. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-11 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
status_str |
publishedVersion |
dc.identifier.none.fl_str_mv |
http://hdl.handle.net/11336/251910 Stephens, Ian; Lin, Zhe Yu Daniel; Fernandez Lopez, Manuel; Li, Zhi Yun; Looney, Leslie W.; et al.; Aligned grains and scattered light found in gaps of planet-forming disk; Nature Publishing Group; Nature; 623; 7988; 11-2023; 705-708 0028-0836 CONICET Digital CONICET |
url |
http://hdl.handle.net/11336/251910 |
identifier_str_mv |
Stephens, Ian; Lin, Zhe Yu Daniel; Fernandez Lopez, Manuel; Li, Zhi Yun; Looney, Leslie W.; et al.; Aligned grains and scattered light found in gaps of planet-forming disk; Nature Publishing Group; Nature; 623; 7988; 11-2023; 705-708 0028-0836 CONICET Digital CONICET |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/https://www.nature.com/articles/s41586-023-06648-7 info:eu-repo/semantics/altIdentifier/doi/10.1038/s41586-023-06648-7 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
Nature Publishing Group |
publisher.none.fl_str_mv |
Nature Publishing Group |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
reponame_str |
CONICET Digital (CONICET) |
collection |
CONICET Digital (CONICET) |
instname_str |
Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.name.fl_str_mv |
CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas |
repository.mail.fl_str_mv |
dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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1844613060544692224 |
score |
13.070432 |