A MUSE/VLT spatially resolved study of the emission structure of Green Pea galaxies
This article has an erratum: [https://doi.org/10.1051/0004-6361/202346192e]
| Autores: | , , , , , , , , |
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| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2023 |
| País: | España |
| Recursos: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/357859 |
| Acesso em linha: | http://hdl.handle.net/10261/357859 |
| Access Level: | acceso abierto |
| Palavra-chave: | Galaxies: Evolution Galaxies: ISM Galaxies: Star formation Galaxies: Starburst HII regions ISM: Abundances |
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A MUSE/VLT spatially resolved study of the emission structure of Green Pea galaxiesArroyo-Polonio, A.Iglesias-Páramo, J.Kehrig, C.Vílchez Medina, José ManuelAmorín, R.Breda, I.Pérez Montero, EnriquePérez-Díaz, B.Hayes, M.Galaxies: EvolutionGalaxies: ISMGalaxies: Star formationGalaxies: StarburstHII regionsISM: AbundancesThis article has an erratum: [https://doi.org/10.1051/0004-6361/202346192e]Green Pea galaxies (GPs) present among the most intense starbursts known in the nearby Universe. These galaxies are regarded as local analogs of high-redshift galaxies, making them a benchmark in the understanding of the star formation processes and the galactic evolution in the early Universe. In this work, we performed an integral field spectroscopic (IFS) study for a set of 24 GPs to investigate the interplay between its ionized interstellar medium (ISM) and the massive star formation that these galaxies present. Observations were taken in the optical spectral range (λ4750 Å-λ9350 Å) with the MUSE spectrograph attached to the 8.2 m telescope VLT. Spatial extension criteria were employed to verify which GPs are spatially resolved in the MUSE data cubes. We created and analyzed maps of spatially distributed emission lines (at different stages of excitation), continuum emission, and properties of the ionized ISM (e.g., ionization structure indicators, physical-chemical conditions, dust extinction). We also took advantage of our IFS data to produce integrated spectra of selected galactic regions in order to study their physical-chemical conditions. Maps of relevant emission lines and emission line ratios show that higher-excitation gas is preferentially located in the center of the galaxy, where the starburst is present. The continuum maps, with an average angular extent of 4'' exhibit more complex structures than the emission line maps. However, the [O III]λ5007 Å emission line maps tend to extend beyond the continuum images (the average angular extent is 5.5''), indicating the presence of low surface brightness ionized gas in the outer parts of the galaxies. Hα/Hβ, [S II]/Hα, and [O I]/Hα maps trace low-extinction, optically thin regions. The line ratios [O III]/Hβ and [N II]/Hα span extensive ranges, with values varying from 0.5 dex to 0.9 dex and from-1.7 dex to-0.8 dex, respectively. Regarding the integrated spectra, the line ratios were fit to derive physical properties including the electron densities ne = 30-530 cm-3, and, in six GPs with a measurable [O III]λ4363 Å line, electron temperatures of Te = 11 500 K-15 500 K, so the direct method was applied in these objects to retrieve metallicities 12 + log(O/H)≃ 8. We found the presence of the high-ionizing nebular He IIλ4686 Å line in three GPs, where two of them present among the highest sSFR values (> 8 × 108 yr-1) in this sample. Non-Wolf-Rayet (WR) features are detected in these galaxy spectra. © The Authors 2023.Author Antonio Arroyo Polonio acknowledges financial support from the grant CEX2021-001131-S funded by MCIN/AEI/10.13039/501100011033. R.A. acknowledges support from ANID FONDECYT Regular Grant 1202007.EDP SciencesMinisterio de Ciencia e Innovación (España)Fondo Nacional de Desarrollo Científico y Tecnológico (Chile)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]2024202420232024info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/357859reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Programa Estatal para Impulsar la Investigación Científico-Técnica y su Transferencia 2021-2023/CEX2021-001131-Shttp://dx.doi.org/10.1051/0004-6361/202346192Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/3578592026-05-22T06:33:51Z |
| dc.title.none.fl_str_mv |
A MUSE/VLT spatially resolved study of the emission structure of Green Pea galaxies |
| title |
A MUSE/VLT spatially resolved study of the emission structure of Green Pea galaxies |
| spellingShingle |
A MUSE/VLT spatially resolved study of the emission structure of Green Pea galaxies Arroyo-Polonio, A. Galaxies: Evolution Galaxies: ISM Galaxies: Star formation Galaxies: Starburst HII regions ISM: Abundances |
| title_short |
A MUSE/VLT spatially resolved study of the emission structure of Green Pea galaxies |
| title_full |
A MUSE/VLT spatially resolved study of the emission structure of Green Pea galaxies |
| title_fullStr |
A MUSE/VLT spatially resolved study of the emission structure of Green Pea galaxies |
| title_full_unstemmed |
A MUSE/VLT spatially resolved study of the emission structure of Green Pea galaxies |
| title_sort |
A MUSE/VLT spatially resolved study of the emission structure of Green Pea galaxies |
| dc.creator.none.fl_str_mv |
Arroyo-Polonio, A. Iglesias-Páramo, J. Kehrig, C. Vílchez Medina, José Manuel Amorín, R. Breda, I. Pérez Montero, Enrique Pérez-Díaz, B. Hayes, M. |
| author |
Arroyo-Polonio, A. |
| author_facet |
Arroyo-Polonio, A. Iglesias-Páramo, J. Kehrig, C. Vílchez Medina, José Manuel Amorín, R. Breda, I. Pérez Montero, Enrique Pérez-Díaz, B. Hayes, M. |
| author_role |
author |
| author2 |
Iglesias-Páramo, J. Kehrig, C. Vílchez Medina, José Manuel Amorín, R. Breda, I. Pérez Montero, Enrique Pérez-Díaz, B. Hayes, M. |
| author2_role |
author author author author author author author author |
| dc.contributor.none.fl_str_mv |
Ministerio de Ciencia e Innovación (España) Fondo Nacional de Desarrollo Científico y Tecnológico (Chile) Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72] |
| dc.subject.none.fl_str_mv |
Galaxies: Evolution Galaxies: ISM Galaxies: Star formation Galaxies: Starburst HII regions ISM: Abundances |
| topic |
Galaxies: Evolution Galaxies: ISM Galaxies: Star formation Galaxies: Starburst HII regions ISM: Abundances |
| description |
This article has an erratum: [https://doi.org/10.1051/0004-6361/202346192e] |
| publishDate |
2023 |
| dc.date.none.fl_str_mv |
2023 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/10261/357859 |
| url |
http://hdl.handle.net/10261/357859 |
| dc.language.none.fl_str_mv |
Inglés |
| language_invalid_str_mv |
Inglés |
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#PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/AEI/Programa Estatal para Impulsar la Investigación Científico-Técnica y su Transferencia 2021-2023/CEX2021-001131-S http://dx.doi.org/10.1051/0004-6361/202346192 Sí |
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info:eu-repo/semantics/openAccess |
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openAccess |
| dc.publisher.none.fl_str_mv |
EDP Sciences |
| publisher.none.fl_str_mv |
EDP Sciences |
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reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC instname:Consejo Superior de Investigaciones Científicas (CSIC) |
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Consejo Superior de Investigaciones Científicas (CSIC) |
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DIGITAL.CSIC. Repositorio Institucional del CSIC |
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DIGITAL.CSIC. Repositorio Institucional del CSIC |
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