The VISCACHA survey : III. Star clusters counterpart of the Magellanic Bridge and Counter-Bridge in 8D
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , , , , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/237150 |
Resumo: | Context. The interactions between the Small and Large Magellanic Clouds (SMC and LMC) created the Magellanic Bridge; a stream of gas and stars pulled out of the SMC towards the LMC about 150 Myr ago. The tidal counterpart of this structure, which should include a trailing arm, has been predicted by models but no compelling observational evidence has confirmed the Counter-Bridge so far. Aims. The main goal of this work is to find the stellar counterpart of the Magellanic Bridge and Counter-Bridge. We use star clusters in the SMC outskirts as they provide a 6D phase-space vector, age, and metallicity which help characterise the outskirts of the SMC. Methods. Distances, ages, and photometric metallicities were derived from fitting isochrones to the colour-magnitude diagrams from the VISCACHA survey. Radial velocities and spectroscopic metallicities were derived from the spectroscopic follow-up using GMOS in the CaII triplet region. Results. Among the seven clusters analysed in this work, five belong to the Magellanic Bridge, one belongs to the Counter-Bridge, and the other belongs to the transition region. Conclusions. The existence of the tidal counterpart of the Magellanic Bridge is evidenced by star clusters. The stellar component of the Magellanic Bridge and Counter-Bridge are confirmed in the SMC outskirts. These results are an important constraint for models that seek to reconstruct the history of the orbit and interactions between the LMC and SMC as well as constrain their future interaction including with the Milky Way. |
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Dias, Bruno Moreira de SouzaAngelo, Mateus S.Oliveira, Raphael Augusto Pereira deMaia, Francisco F. S.Parisi, M. C.De Bórtoli, Bruno JavierSouza, Stefano O.Santrich, Orlando J. KatimeBassino, Lilia PatriciaBarbuy, BeatrizBica, Eduardo Luiz DamianiGeisler, DougKerber, Leandro de OliveiraPérez Villegas, Maria de Los AngelesQuint, Bruno C.Sanmartim, DavidSantos Junior, Joao Francisco Coelho dosWestera, Pieter2022-04-13T04:51:33Z20210004-6361http://hdl.handle.net/10183/237150001138566Context. The interactions between the Small and Large Magellanic Clouds (SMC and LMC) created the Magellanic Bridge; a stream of gas and stars pulled out of the SMC towards the LMC about 150 Myr ago. The tidal counterpart of this structure, which should include a trailing arm, has been predicted by models but no compelling observational evidence has confirmed the Counter-Bridge so far. Aims. The main goal of this work is to find the stellar counterpart of the Magellanic Bridge and Counter-Bridge. We use star clusters in the SMC outskirts as they provide a 6D phase-space vector, age, and metallicity which help characterise the outskirts of the SMC. Methods. Distances, ages, and photometric metallicities were derived from fitting isochrones to the colour-magnitude diagrams from the VISCACHA survey. Radial velocities and spectroscopic metallicities were derived from the spectroscopic follow-up using GMOS in the CaII triplet region. Results. Among the seven clusters analysed in this work, five belong to the Magellanic Bridge, one belongs to the Counter-Bridge, and the other belongs to the transition region. Conclusions. The existence of the tidal counterpart of the Magellanic Bridge is evidenced by star clusters. The stellar component of the Magellanic Bridge and Counter-Bridge are confirmed in the SMC outskirts. These results are an important constraint for models that seek to reconstruct the history of the orbit and interactions between the LMC and SMC as well as constrain their future interaction including with the Milky Way.application/pdfengAstronomy and astrophysics. Les Ulis. Vol. 647 (Mar. 2021), L9, 10 p.Nuvens de magalhaesEvolucao galaticaAglomerados estelaresMagellanic CloudsGalaxies : Star clusters : GeneralGalaxies : EvolutionThe VISCACHA survey : III. Star clusters counterpart of the Magellanic Bridge and Counter-Bridge in 8DEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001138566.pdf.txt001138566.pdf.txtExtracted Texttext/plain42013http://www.lume.ufrgs.br/bitstream/10183/237150/2/001138566.pdf.txt7b02bebf3b771eedc34af678b4a37f10MD52ORIGINAL001138566.pdfTexto completo (inglês)application/pdf1779728http://www.lume.ufrgs.br/bitstream/10183/237150/1/001138566.pdf2ea2cc34015c1726533c69935f84e561MD5110183/2371502023-10-25 03:39:11.832928oai:www.lume.ufrgs.br:10183/237150Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-10-25T06:39:11Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
The VISCACHA survey : III. Star clusters counterpart of the Magellanic Bridge and Counter-Bridge in 8D |
title |
The VISCACHA survey : III. Star clusters counterpart of the Magellanic Bridge and Counter-Bridge in 8D |
spellingShingle |
The VISCACHA survey : III. Star clusters counterpart of the Magellanic Bridge and Counter-Bridge in 8D Dias, Bruno Moreira de Souza Nuvens de magalhaes Evolucao galatica Aglomerados estelares Magellanic Clouds Galaxies : Star clusters : General Galaxies : Evolution |
title_short |
The VISCACHA survey : III. Star clusters counterpart of the Magellanic Bridge and Counter-Bridge in 8D |
title_full |
The VISCACHA survey : III. Star clusters counterpart of the Magellanic Bridge and Counter-Bridge in 8D |
title_fullStr |
The VISCACHA survey : III. Star clusters counterpart of the Magellanic Bridge and Counter-Bridge in 8D |
title_full_unstemmed |
The VISCACHA survey : III. Star clusters counterpart of the Magellanic Bridge and Counter-Bridge in 8D |
title_sort |
The VISCACHA survey : III. Star clusters counterpart of the Magellanic Bridge and Counter-Bridge in 8D |
author |
Dias, Bruno Moreira de Souza |
author_facet |
Dias, Bruno Moreira de Souza Angelo, Mateus S. Oliveira, Raphael Augusto Pereira de Maia, Francisco F. S. Parisi, M. C. De Bórtoli, Bruno Javier Souza, Stefano O. Santrich, Orlando J. Katime Bassino, Lilia Patricia Barbuy, Beatriz Bica, Eduardo Luiz Damiani Geisler, Doug Kerber, Leandro de Oliveira Pérez Villegas, Maria de Los Angeles Quint, Bruno C. Sanmartim, David Santos Junior, Joao Francisco Coelho dos Westera, Pieter |
author_role |
author |
author2 |
Angelo, Mateus S. Oliveira, Raphael Augusto Pereira de Maia, Francisco F. S. Parisi, M. C. De Bórtoli, Bruno Javier Souza, Stefano O. Santrich, Orlando J. Katime Bassino, Lilia Patricia Barbuy, Beatriz Bica, Eduardo Luiz Damiani Geisler, Doug Kerber, Leandro de Oliveira Pérez Villegas, Maria de Los Angeles Quint, Bruno C. Sanmartim, David Santos Junior, Joao Francisco Coelho dos Westera, Pieter |
author2_role |
author author author author author author author author author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Dias, Bruno Moreira de Souza Angelo, Mateus S. Oliveira, Raphael Augusto Pereira de Maia, Francisco F. S. Parisi, M. C. De Bórtoli, Bruno Javier Souza, Stefano O. Santrich, Orlando J. Katime Bassino, Lilia Patricia Barbuy, Beatriz Bica, Eduardo Luiz Damiani Geisler, Doug Kerber, Leandro de Oliveira Pérez Villegas, Maria de Los Angeles Quint, Bruno C. Sanmartim, David Santos Junior, Joao Francisco Coelho dos Westera, Pieter |
dc.subject.por.fl_str_mv |
Nuvens de magalhaes Evolucao galatica Aglomerados estelares |
topic |
Nuvens de magalhaes Evolucao galatica Aglomerados estelares Magellanic Clouds Galaxies : Star clusters : General Galaxies : Evolution |
dc.subject.eng.fl_str_mv |
Magellanic Clouds Galaxies : Star clusters : General Galaxies : Evolution |
description |
Context. The interactions between the Small and Large Magellanic Clouds (SMC and LMC) created the Magellanic Bridge; a stream of gas and stars pulled out of the SMC towards the LMC about 150 Myr ago. The tidal counterpart of this structure, which should include a trailing arm, has been predicted by models but no compelling observational evidence has confirmed the Counter-Bridge so far. Aims. The main goal of this work is to find the stellar counterpart of the Magellanic Bridge and Counter-Bridge. We use star clusters in the SMC outskirts as they provide a 6D phase-space vector, age, and metallicity which help characterise the outskirts of the SMC. Methods. Distances, ages, and photometric metallicities were derived from fitting isochrones to the colour-magnitude diagrams from the VISCACHA survey. Radial velocities and spectroscopic metallicities were derived from the spectroscopic follow-up using GMOS in the CaII triplet region. Results. Among the seven clusters analysed in this work, five belong to the Magellanic Bridge, one belongs to the Counter-Bridge, and the other belongs to the transition region. Conclusions. The existence of the tidal counterpart of the Magellanic Bridge is evidenced by star clusters. The stellar component of the Magellanic Bridge and Counter-Bridge are confirmed in the SMC outskirts. These results are an important constraint for models that seek to reconstruct the history of the orbit and interactions between the LMC and SMC as well as constrain their future interaction including with the Milky Way. |
publishDate |
2021 |
dc.date.issued.fl_str_mv |
2021 |
dc.date.accessioned.fl_str_mv |
2022-04-13T04:51:33Z |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/237150 |
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0004-6361 |
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001138566 |
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http://hdl.handle.net/10183/237150 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Astronomy and astrophysics. Les Ulis. Vol. 647 (Mar. 2021), L9, 10 p. |
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openAccess |
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