Protoplanetary Disk Polarization at Multiple Wavelengths: Are Dust Populations Diverse?
- Autores
- Harrison, Rachel E.; Lin, Zhe-Yu Daniel; Looney, Leslie W.; Li, Zhi-Yun; Yang, Haifeng; Stephens, Ian W.; Fernández López, Manuel
- Año de publicación
- 2024
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Millimeter and submillimeter observations of continuum linear dust polarization provide insight into dust grain growth in protoplanetary disks, which are the progenitors of planetary systems. We present the results of the first survey of dust polarization in protoplanetary disks at 870 μm and 3 mm. We find that protoplanetary disks in the same molecular cloud at similar evolutionary stages can exhibit different correlations between observing wavelength and polarization morphology and fraction. We explore possible origins for these differences in polarization, including differences in dust populations and protostar properties. For RY Tau and MWC 480, which are consistent with scattering at both wavelengths, we present models of the scattering polarization from several dust grain size distributions. These models aim to reproduce two features of the observational results for these disks: (1) both disks have an observable degree of polarization at both wavelengths; and (2) the polarization fraction is higher at 3 mm than at 870 μm in the centers of the disks. For both disks, these features can be reproduced by a power-law distribution of spherical dust grains with a maximum radius of 200 μm and high optical depth. In MWC 480, we can also reproduce features (1) and (2) with a model containing large grains (amax = 490 μm) near the disk midplane and small grains (amax = 140 μm) above and below the midplane.
Instituto Argentino de Radioastronomía - Materia
-
Ciencias Astronómicas
Protoplanetary disks
Polarimetry - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by/4.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/167344
Ver los metadatos del registro completo
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Protoplanetary Disk Polarization at Multiple Wavelengths: Are Dust Populations Diverse?Harrison, Rachel E.Lin, Zhe-Yu DanielLooney, Leslie W.Li, Zhi-YunYang, HaifengStephens, Ian W.Fernández López, ManuelCiencias AstronómicasProtoplanetary disksPolarimetryMillimeter and submillimeter observations of continuum linear dust polarization provide insight into dust grain growth in protoplanetary disks, which are the progenitors of planetary systems. We present the results of the first survey of dust polarization in protoplanetary disks at 870 μm and 3 mm. We find that protoplanetary disks in the same molecular cloud at similar evolutionary stages can exhibit different correlations between observing wavelength and polarization morphology and fraction. We explore possible origins for these differences in polarization, including differences in dust populations and protostar properties. For RY Tau and MWC 480, which are consistent with scattering at both wavelengths, we present models of the scattering polarization from several dust grain size distributions. These models aim to reproduce two features of the observational results for these disks: (1) both disks have an observable degree of polarization at both wavelengths; and (2) the polarization fraction is higher at 3 mm than at 870 μm in the centers of the disks. For both disks, these features can be reproduced by a power-law distribution of spherical dust grains with a maximum radius of 200 μm and high optical depth. In MWC 480, we can also reproduce features (1) and (2) with a model containing large grains (amax = 490 μm) near the disk midplane and small grains (amax = 140 μm) above and below the midplane.Instituto Argentino de Radioastronomía2024info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://sedici.unlp.edu.ar/handle/10915/167344enginfo:eu-repo/semantics/altIdentifier/issn/1538-4357info:eu-repo/semantics/altIdentifier/doi/10.3847/1538-4357/ad39ecinfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T11:44:35Zoai:sedici.unlp.edu.ar:10915/167344Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 11:44:35.792SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
Protoplanetary Disk Polarization at Multiple Wavelengths: Are Dust Populations Diverse? |
title |
Protoplanetary Disk Polarization at Multiple Wavelengths: Are Dust Populations Diverse? |
spellingShingle |
Protoplanetary Disk Polarization at Multiple Wavelengths: Are Dust Populations Diverse? Harrison, Rachel E. Ciencias Astronómicas Protoplanetary disks Polarimetry |
title_short |
Protoplanetary Disk Polarization at Multiple Wavelengths: Are Dust Populations Diverse? |
title_full |
Protoplanetary Disk Polarization at Multiple Wavelengths: Are Dust Populations Diverse? |
title_fullStr |
Protoplanetary Disk Polarization at Multiple Wavelengths: Are Dust Populations Diverse? |
title_full_unstemmed |
Protoplanetary Disk Polarization at Multiple Wavelengths: Are Dust Populations Diverse? |
title_sort |
Protoplanetary Disk Polarization at Multiple Wavelengths: Are Dust Populations Diverse? |
dc.creator.none.fl_str_mv |
Harrison, Rachel E. Lin, Zhe-Yu Daniel Looney, Leslie W. Li, Zhi-Yun Yang, Haifeng Stephens, Ian W. Fernández López, Manuel |
author |
Harrison, Rachel E. |
author_facet |
Harrison, Rachel E. Lin, Zhe-Yu Daniel Looney, Leslie W. Li, Zhi-Yun Yang, Haifeng Stephens, Ian W. Fernández López, Manuel |
author_role |
author |
author2 |
Lin, Zhe-Yu Daniel Looney, Leslie W. Li, Zhi-Yun Yang, Haifeng Stephens, Ian W. Fernández López, Manuel |
author2_role |
author author author author author author |
dc.subject.none.fl_str_mv |
Ciencias Astronómicas Protoplanetary disks Polarimetry |
topic |
Ciencias Astronómicas Protoplanetary disks Polarimetry |
dc.description.none.fl_txt_mv |
Millimeter and submillimeter observations of continuum linear dust polarization provide insight into dust grain growth in protoplanetary disks, which are the progenitors of planetary systems. We present the results of the first survey of dust polarization in protoplanetary disks at 870 μm and 3 mm. We find that protoplanetary disks in the same molecular cloud at similar evolutionary stages can exhibit different correlations between observing wavelength and polarization morphology and fraction. We explore possible origins for these differences in polarization, including differences in dust populations and protostar properties. For RY Tau and MWC 480, which are consistent with scattering at both wavelengths, we present models of the scattering polarization from several dust grain size distributions. These models aim to reproduce two features of the observational results for these disks: (1) both disks have an observable degree of polarization at both wavelengths; and (2) the polarization fraction is higher at 3 mm than at 870 μm in the centers of the disks. For both disks, these features can be reproduced by a power-law distribution of spherical dust grains with a maximum radius of 200 μm and high optical depth. In MWC 480, we can also reproduce features (1) and (2) with a model containing large grains (amax = 490 μm) near the disk midplane and small grains (amax = 140 μm) above and below the midplane. Instituto Argentino de Radioastronomía |
description |
Millimeter and submillimeter observations of continuum linear dust polarization provide insight into dust grain growth in protoplanetary disks, which are the progenitors of planetary systems. We present the results of the first survey of dust polarization in protoplanetary disks at 870 μm and 3 mm. We find that protoplanetary disks in the same molecular cloud at similar evolutionary stages can exhibit different correlations between observing wavelength and polarization morphology and fraction. We explore possible origins for these differences in polarization, including differences in dust populations and protostar properties. For RY Tau and MWC 480, which are consistent with scattering at both wavelengths, we present models of the scattering polarization from several dust grain size distributions. These models aim to reproduce two features of the observational results for these disks: (1) both disks have an observable degree of polarization at both wavelengths; and (2) the polarization fraction is higher at 3 mm than at 870 μm in the centers of the disks. For both disks, these features can be reproduced by a power-law distribution of spherical dust grains with a maximum radius of 200 μm and high optical depth. In MWC 480, we can also reproduce features (1) and (2) with a model containing large grains (amax = 490 μm) near the disk midplane and small grains (amax = 140 μm) above and below the midplane. |
publishDate |
2024 |
dc.date.none.fl_str_mv |
2024 |
dc.type.none.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articulo http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
format |
article |
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publishedVersion |
dc.identifier.none.fl_str_mv |
http://sedici.unlp.edu.ar/handle/10915/167344 |
url |
http://sedici.unlp.edu.ar/handle/10915/167344 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
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info:eu-repo/semantics/altIdentifier/issn/1538-4357 info:eu-repo/semantics/altIdentifier/doi/10.3847/1538-4357/ad39ec |
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info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) |
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openAccess |
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http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International (CC BY 4.0) |
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application/pdf |
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