Optical polarimetric and near-infrared photometric study of the RCW95 galactic H II region
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2017 |
| Outros Autores: | , , , , , |
| Tipo de documento: | Artigo |
| Idioma: | eng |
| Título da fonte: | Repositório Institucional da UFMG |
| Texto Completo: | https://doi.org/10.1093/mnras/stx2753 http://hdl.handle.net/1843/58583 https://orcid.org/0000-0002-1379-4204 https://orcid.org/0000-0003-2020-2649 https://orcid.org/0000-0002-2569-4032 https://orcid.org/0000-0002-9238-9521 |
Resumo: | CNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico |
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2023-09-12T11:55:56Z2023-09-12T11:55:56Z20174745568https://doi.org/10.1093/mnras/stx27531365-2966http://hdl.handle.net/1843/58583https://orcid.org/0000-0002-1379-4204https://orcid.org/0000-0003-2020-2649https://orcid.org/0000-0002-2569-4032https://orcid.org/0000-0002-9238-9521CNPq - Conselho Nacional de Desenvolvimento Científico e TecnológicoFAPEMIG - Fundação de Amparo à Pesquisa do Estado de Minas GeraisWe carried out an optical polarimetric study in the direction of the RCW 95 star-forming region in order to probe the sky-projected magnetic field structure by using the distribution of linear polarization segments which seem to be well aligned with the more extended cloud component. A mean polarization angle of θ = 49∘.8 ± 7∘.7 was derived. Through the spectral dependence analysis of polarization it was possible to obtain the total-to-selective extinction ratio (RV) by fitting the Serkowski function, resulting in a mean value of RV = 2.93 ± 0.47. The foreground polarization component was estimated and is in agreement with previous studies in this direction of the Galaxy. Further, near-infrared (NIR) images from Vista Variables in the Via Láctea (VVV) survey were collected to improve the study of the stellar population associated with the H ii region. The Automated Stellar Cluster Analysis algorithm was employed to derive structural parameters for two clusters in the region, and a set of PAdova and TRieste Stellar Evolution Code (parsec) isochrones was superimposed on the decontaminated colour–magnitude diagrams to estimate an age of about 3 Myr for both clusters. Finally, from the NIR photometry study combined with spectra obtained with the Ohio State Infrared Imager and Spectrometer mounted at the Southern Astrophysics Research Telescope we derived the spectral classification of the main ionizing sources in the clusters associated with IRAS 15408−5356 and IRAS 15412−5359, both objects classified as O4V stars.engUniversidade Federal de Minas GeraisUFMGBrasilICX - DEPARTAMENTO DE FÍSICAMonthly Notices of the Royal Astronomical SocietyAstronomiaMeio interestelarEstrelasStarsInterestellar mediumOpen clusters and associationsOptical polarimetric and near-infrared photometric study of the RCW95 galactic H II regioninfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttps://academic.oup.com/mnras/article/474/1/55/4563630Jaime Ignacio Vargas GonzálezAlexandre Roman LopesFábio Pereira SantosGabriel Armando Pellegatti FrancoJoão Francisco Coelho dos Santos JuniorFrancisco Ferreira de Souza MaiaDavid Sanmartimapplication/pdfinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFMGinstname:Universidade Federal de Minas Gerais (UFMG)instacron:UFMGLICENSELicense.txtLicense.txttext/plain; charset=utf-82042https://repositorio.ufmg.br/bitstream/1843/58583/1/License.txtfa505098d172de0bc8864fc1287ffe22MD51ORIGINALOptical polarimetric and near-infrared photometric study of the RCW95.pdfOptical polarimetric and near-infrared photometric study of the RCW95.pdfapplication/pdf10741308https://repositorio.ufmg.br/bitstream/1843/58583/2/Optical%20polarimetric%20and%20near-infrared%20photometric%20study%20of%20the%20RCW95.pdf8f6d20c40cdc08b55d8615b727a11900MD521843/585832023-09-12 17:00:23.386oai:repositorio.ufmg.br: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Repositório de PublicaçõesPUBhttps://repositorio.ufmg.br/oaiopendoar:2023-09-12T20:00:23Repositório Institucional da UFMG - Universidade Federal de Minas Gerais (UFMG)false |
| dc.title.pt_BR.fl_str_mv |
Optical polarimetric and near-infrared photometric study of the RCW95 galactic H II region |
| title |
Optical polarimetric and near-infrared photometric study of the RCW95 galactic H II region |
| spellingShingle |
Optical polarimetric and near-infrared photometric study of the RCW95 galactic H II region Jaime Ignacio Vargas González Stars Interestellar medium Open clusters and associations Astronomia Meio interestelar Estrelas |
| title_short |
Optical polarimetric and near-infrared photometric study of the RCW95 galactic H II region |
| title_full |
Optical polarimetric and near-infrared photometric study of the RCW95 galactic H II region |
| title_fullStr |
Optical polarimetric and near-infrared photometric study of the RCW95 galactic H II region |
| title_full_unstemmed |
Optical polarimetric and near-infrared photometric study of the RCW95 galactic H II region |
| title_sort |
Optical polarimetric and near-infrared photometric study of the RCW95 galactic H II region |
| author |
Jaime Ignacio Vargas González |
| author_facet |
Jaime Ignacio Vargas González Alexandre Roman Lopes Fábio Pereira Santos Gabriel Armando Pellegatti Franco João Francisco Coelho dos Santos Junior Francisco Ferreira de Souza Maia David Sanmartim |
| author_role |
author |
| author2 |
Alexandre Roman Lopes Fábio Pereira Santos Gabriel Armando Pellegatti Franco João Francisco Coelho dos Santos Junior Francisco Ferreira de Souza Maia David Sanmartim |
| author2_role |
author author author author author author |
| dc.contributor.author.fl_str_mv |
Jaime Ignacio Vargas González Alexandre Roman Lopes Fábio Pereira Santos Gabriel Armando Pellegatti Franco João Francisco Coelho dos Santos Junior Francisco Ferreira de Souza Maia David Sanmartim |
| dc.subject.por.fl_str_mv |
Stars Interestellar medium Open clusters and associations |
| topic |
Stars Interestellar medium Open clusters and associations Astronomia Meio interestelar Estrelas |
| dc.subject.other.pt_BR.fl_str_mv |
Astronomia Meio interestelar Estrelas |
| description |
CNPq - Conselho Nacional de Desenvolvimento Científico e Tecnológico |
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2017 |
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2017 |
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2023-09-12T11:55:56Z |
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2023-09-12T11:55:56Z |
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https://doi.org/10.1093/mnras/stx2753 |
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1365-2966 |
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https://orcid.org/0000-0002-1379-4204 https://orcid.org/0000-0003-2020-2649 https://orcid.org/0000-0002-2569-4032 https://orcid.org/0000-0002-9238-9521 |
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Monthly Notices of the Royal Astronomical Society |
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