Experimental Phase Function and Degree of Linear Polarization of Light Scattered by Hydrogenated Amorphous Carbon Circumstellar Dust Analogs
[EN] Astronomical observations of the polarized intensity of scattered visible light have revealed the presence of dust envelopes around different types of evolved stars. These observations have helped determine the diameter and width of dust shells around stars with unprecedented accuracy. Simple g...
| Autores: | , , , , , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2024 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/347552 |
| Acceso en línea: | http://hdl.handle.net/10261/347552 |
| Access Level: | acceso abierto |
| Palabra clave: | Laboratory astrophysics Experimental data Dust physics Astrophysical dust processes Interstellar dust Interstellar scattering Circumstellar dust Optical constants (Dust) Dust shells |
| id |
ES_226fadccdb181a4d4ff2bebf7eca7f6e |
|---|---|
| oai_identifier_str |
oai:digital.csic.es:10261/347552 |
| network_acronym_str |
ES |
| network_name_str |
España |
| repository_id_str |
|
| dc.title.none.fl_str_mv |
Experimental Phase Function and Degree of Linear Polarization of Light Scattered by Hydrogenated Amorphous Carbon Circumstellar Dust Analogs |
| title |
Experimental Phase Function and Degree of Linear Polarization of Light Scattered by Hydrogenated Amorphous Carbon Circumstellar Dust Analogs |
| spellingShingle |
Experimental Phase Function and Degree of Linear Polarization of Light Scattered by Hydrogenated Amorphous Carbon Circumstellar Dust Analogs Gómez Martín, Juan Carlos Laboratory astrophysics Experimental data Dust physics Astrophysical dust processes Interstellar dust Interstellar scattering Circumstellar dust Optical constants (Dust) Dust shells |
| title_short |
Experimental Phase Function and Degree of Linear Polarization of Light Scattered by Hydrogenated Amorphous Carbon Circumstellar Dust Analogs |
| title_full |
Experimental Phase Function and Degree of Linear Polarization of Light Scattered by Hydrogenated Amorphous Carbon Circumstellar Dust Analogs |
| title_fullStr |
Experimental Phase Function and Degree of Linear Polarization of Light Scattered by Hydrogenated Amorphous Carbon Circumstellar Dust Analogs |
| title_full_unstemmed |
Experimental Phase Function and Degree of Linear Polarization of Light Scattered by Hydrogenated Amorphous Carbon Circumstellar Dust Analogs |
| title_sort |
Experimental Phase Function and Degree of Linear Polarization of Light Scattered by Hydrogenated Amorphous Carbon Circumstellar Dust Analogs |
| dc.creator.none.fl_str_mv |
Gómez Martín, Juan Carlos Muñoz, Olga Martikainen, Julia Guirado, Daniel Tanarro, Isabel Peláez, Ramón J. Maté, Belén Jiménez-Redondo, Miguel Herrero, Víctor J. Peiteado, Marco Jardiel, Teresa |
| author |
Gómez Martín, Juan Carlos |
| author_facet |
Gómez Martín, Juan Carlos Muñoz, Olga Martikainen, Julia Guirado, Daniel Tanarro, Isabel Peláez, Ramón J. Maté, Belén Jiménez-Redondo, Miguel Herrero, Víctor J. Peiteado, Marco Jardiel, Teresa |
| author_role |
author |
| author2 |
Muñoz, Olga Martikainen, Julia Guirado, Daniel Tanarro, Isabel Peláez, Ramón J. Maté, Belén Jiménez-Redondo, Miguel Herrero, Víctor J. Peiteado, Marco Jardiel, Teresa |
| author2_role |
author author author author author author author author author author |
| dc.contributor.none.fl_str_mv |
Ministerio de Ciencia e Innovación (España) Agencia Estatal de Investigación (España) European Research Council Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72] |
| dc.subject.none.fl_str_mv |
Laboratory astrophysics Experimental data Dust physics Astrophysical dust processes Interstellar dust Interstellar scattering Circumstellar dust Optical constants (Dust) Dust shells |
| topic |
Laboratory astrophysics Experimental data Dust physics Astrophysical dust processes Interstellar dust Interstellar scattering Circumstellar dust Optical constants (Dust) Dust shells |
| description |
[EN] Astronomical observations of the polarized intensity of scattered visible light have revealed the presence of dust envelopes around different types of evolved stars. These observations have helped determine the diameter and width of dust shells around stars with unprecedented accuracy. Simple geometric particle models are used in order to retrieve dust properties from these observations. In this work, we have synthesized and characterized a particulate sample of hydrogenated amorphous carbon (HAC), which is considered to be a realistic carbonaceous interstellar dust analog based on infrared absorption spectroscopy, and we have measured its phase function and degree of linear polarization curves at 514 nm using the CODULAB apparatus at IAA-CSIC. The experimental light-scattering data has been examined in order to explore possible improvements in the interpretation of astronomical observations of circumstellar dust from the point of view of the retrieval of dust properties, including size and porosity. Our results suggest that circumstellar dust observations of linearly polarized scattered light, which are commonly attributed to a population of spherical grains with a radius of ∼0.1 μm, are consistent with larger porous aggregates composed of nanometer-sized grains. In addition, an internal 50wt% mixture of HAC and ultrafine forsterite powder has been generated to study the effect of the mixing of these two components on the light-scattering behavior of dust in cometary environments and protoplanetary disks. In this case, the HAC component, which is not very absorbent, has a very small effect, and the mixture scatters light similarly to the forsterite sample. |
| publishDate |
2024 |
| dc.date.none.fl_str_mv |
2024 2024 2024 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article http://purl.org/coar/resource_type/c_6501 Publisher's version info:eu-repo/semantics/publishedVersion |
| format |
article |
| status_str |
publishedVersion |
| dc.identifier.none.fl_str_mv |
http://hdl.handle.net/10261/347552 |
| url |
http://hdl.handle.net/10261/347552 |
| dc.language.none.fl_str_mv |
Inglés |
| language_invalid_str_mv |
Inglés |
| dc.relation.none.fl_str_mv |
#PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement//AEI/ info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2021-123370OB-I00 info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-113084GB-I00 info:eu-repo/grantAgreement/ERC/210656/ Gómez Martín, Juan Carlos; Muñoz, Olga; Martikainen, Julia; Guirado, Daniel; Tanarro, Isabel; Peláez, Ramón J.; Maté, Belén; Jiménez-Redondo, Miguel; Herrero, Víctor J.; Peiteado, Marco; Jardiel, Teresa. Erratum: Experimental Phase Function and Degree of Linear Polarization of Light Scattered by Hydrogenated Amorphous Carbon Circumstellar Dust Analogs (Astrophysical Journal, Supplement Series (2023) 270: 2 DOI: 10.3847/1538-4365/ad0379). https://doi.org/10.3847/1538-4365/ad3335 . http://hdl.handle.net/10261/365320 https://doi.org/10.3847/1538-4365/ad0379 Sí |
| dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess |
| eu_rights_str_mv |
openAccess |
| dc.publisher.none.fl_str_mv |
Institute of Physics Publishing American Astronomical Society |
| publisher.none.fl_str_mv |
Institute of Physics Publishing American Astronomical Society |
| dc.source.none.fl_str_mv |
reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC instname:Consejo Superior de Investigaciones Científicas (CSIC) |
| instname_str |
Consejo Superior de Investigaciones Científicas (CSIC) |
| reponame_str |
DIGITAL.CSIC. Repositorio Institucional del CSIC |
| collection |
DIGITAL.CSIC. Repositorio Institucional del CSIC |
| repository.name.fl_str_mv |
|
| repository.mail.fl_str_mv |
|
| _version_ |
1869404581481414656 |
| spelling |
Experimental Phase Function and Degree of Linear Polarization of Light Scattered by Hydrogenated Amorphous Carbon Circumstellar Dust AnalogsGómez Martín, Juan CarlosMuñoz, OlgaMartikainen, JuliaGuirado, DanielTanarro, IsabelPeláez, Ramón J.Maté, BelénJiménez-Redondo, MiguelHerrero, Víctor J.Peiteado, MarcoJardiel, TeresaLaboratory astrophysicsExperimental dataDust physicsAstrophysical dust processesInterstellar dustInterstellar scatteringCircumstellar dustOptical constants (Dust)Dust shells[EN] Astronomical observations of the polarized intensity of scattered visible light have revealed the presence of dust envelopes around different types of evolved stars. These observations have helped determine the diameter and width of dust shells around stars with unprecedented accuracy. Simple geometric particle models are used in order to retrieve dust properties from these observations. In this work, we have synthesized and characterized a particulate sample of hydrogenated amorphous carbon (HAC), which is considered to be a realistic carbonaceous interstellar dust analog based on infrared absorption spectroscopy, and we have measured its phase function and degree of linear polarization curves at 514 nm using the CODULAB apparatus at IAA-CSIC. The experimental light-scattering data has been examined in order to explore possible improvements in the interpretation of astronomical observations of circumstellar dust from the point of view of the retrieval of dust properties, including size and porosity. Our results suggest that circumstellar dust observations of linearly polarized scattered light, which are commonly attributed to a population of spherical grains with a radius of ∼0.1 μm, are consistent with larger porous aggregates composed of nanometer-sized grains. In addition, an internal 50wt% mixture of HAC and ultrafine forsterite powder has been generated to study the effect of the mixing of these two components on the light-scattering behavior of dust in cometary environments and protoplanetary disks. In this case, the HAC component, which is not very absorbent, has a very small effect, and the mixture scatters light similarly to the forsterite sample.Financial support from the Severo Ochoa grant CEX2021-001131-S funded by MCIN/AEI/10.13039/501100011033, the grant PID2021-123370OB-I00 (CATS) funded by MCIN/AEI/10.13039/501100011033, and the European Union Next GenerationEU/PTR. I.T., R.J.P., B.M., M.J.R., and V.J.H. acknowledge financial support by MCIN/AEI/10.13039/501100011033 under grant PID2020 113084GB-I00, by the CSIC i-Link project LINKA 20353 and by the European Research Council under grant ERC-2013-Syg-210656-NANOCOSMOSPeer reviewedInstitute of Physics PublishingAmerican Astronomical SocietyMinisterio de Ciencia e Innovación (España)Agencia Estatal de Investigación (España)European Research CouncilConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202420242024info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/347552reponame: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//AEI/info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2021-2023/PID2021-123370OB-I00info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2020-113084GB-I00info:eu-repo/grantAgreement/ERC/210656/Gómez Martín, Juan Carlos; Muñoz, Olga; Martikainen, Julia; Guirado, Daniel; Tanarro, Isabel; Peláez, Ramón J.; Maté, Belén; Jiménez-Redondo, Miguel; Herrero, Víctor J.; Peiteado, Marco; Jardiel, Teresa. Erratum: Experimental Phase Function and Degree of Linear Polarization of Light Scattered by Hydrogenated Amorphous Carbon Circumstellar Dust Analogs (Astrophysical Journal, Supplement Series (2023) 270: 2 DOI: 10.3847/1538-4365/ad0379). https://doi.org/10.3847/1538-4365/ad3335 . http://hdl.handle.net/10261/365320https://doi.org/10.3847/1538-4365/ad0379Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3475522026-05-22T06:33:51Z |
| score |
15,811543 |