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http://hdl.handle.net/1843/58552| Tipo: | Artigo de Periódico |
| Título: | Optical and near-infrared polarimetric study of the RCW121 galactic H II region |
| Autor(es): | Jacqueline Carolina Serón Navarrete Alexandre Roman Lopes Fábio Pereira Santos Gabriel Armando Pellegatti Franco Wilson Reis Junior |
| Resumo: | We present a polarimetric study of the RCW121 star-forming region to derive the orientation of the sky-projected magnetic field component traced by the polarization vectors, the morphology of which tends to follow the cloud's structure. Individual polarization-angle values are consistent across the different bands, having a broad distribution towards the RCW121 H II region. We estimate the corresponding magnetic field orientation in the H II region to have a mean value of −12° ± 7°. RCW121 shows an elongated shape in the same direction as the magnetic field orientation, which may be evidence that magnetic pressure opposes the H II region expansion. Serkowski's relation was used to determine individual values of the total-to-selective extinction ratio (RV) distribution and a weighted mean value of RV = 3.17 ± 0.05. We derive a foreground component of the polarization degree that is consistent with the literature value for this Galactic region. |
| Assunto: | Polarimetria Astrofísica Meio interestelar Polarização (Luz) |
| Idioma: | eng |
| País: | Brasil |
| Editor: | Universidade Federal de Minas Gerais |
| Sigla da Instituição: | UFMG |
| Departamento: | ICX - DEPARTAMENTO DE FÍSICA |
| Tipo de Acesso: | Acesso Aberto |
| Identificador DOI: | https://doi.org/10.1093/mnras/stw1666 |
| URI: | http://hdl.handle.net/1843/58552 |
| Data do documento: | 2016 |
| metadata.dc.url.externa: | https://academic.oup.com/mnras/article/462/2/2266/2589405 |
| metadata.dc.relation.ispartof: | Monthly Notices of the Royal Astronomical Society |
| Aparece nas coleções: | Artigo de Periódico |
Arquivos associados a este item:
| Arquivo | Descrição | Tamanho | Formato | |
|---|---|---|---|---|
| Optical and near-infrared polarimetric study of the RCW121 Galactic H II region.pdf | 12.74 MB | Adobe PDF | Visualizar/Abrir |
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