Near-infrared study of new embedded clusters in the Carina complex
Autor(a) principal: | |
---|---|
Data de Publicação: | 2018 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/179602 |
Resumo: | We analyse the nature of a sample of stellar overdensities that we found projected on the Carina complex. This study is based on the Two Micron All Sky Survey photometry and involves the photometry decontamination of field stars, elaboration of intrinsic colour–magnitude diagrams [CMDs; J × (J − Ks)], colour–colour diagrams (J − H) × (H − Ks), and radial density profiles, in order to determine the structure and the main astrophysical parameters of the best candidates. The verification of an overdensity as an embedded cluster requires a CMD consistent with a PMS content and MS stars, if any. From these results, we are able to verify if they are, in fact, embedded clusters. The results were, in general, rewarding: in a sample of 101 overdensities, the analysis provided 15 candidates, of which three were previously catalogued as clusters (CCCP-Cl 16, Treasure Chest, and FSR 1555), and the 12 remaining are discoveries that provided significant results, with ages not above 4.5Myr and distances compatible with the studied complex. The resulting values for the differential reddening of most candidates were relatively high, confirming that these clusters are still (partially or fully) embedded in the surrounding gas and dust, as a rule within a shell. Histograms with the distribution of the masses, ages, and distances were also produced, to give an overview of the results. We conclude that all the 12 newly found embedded clusters are related to the Carina complex. |
id |
UFRGS-2_fcaefa61ec59a7abeccee6ceb6bc074d |
---|---|
oai_identifier_str |
oai:www.lume.ufrgs.br:10183/179602 |
network_acronym_str |
UFRGS-2 |
network_name_str |
Repositório Institucional da UFRGS |
repository_id_str |
|
spelling |
Oliveira, Raphael Augusto Pereira deBica, Eduardo Luiz DamianiBonatto, Charles Jose2018-06-21T02:32:07Z20180035-8711http://hdl.handle.net/10183/179602001066810We analyse the nature of a sample of stellar overdensities that we found projected on the Carina complex. This study is based on the Two Micron All Sky Survey photometry and involves the photometry decontamination of field stars, elaboration of intrinsic colour–magnitude diagrams [CMDs; J × (J − Ks)], colour–colour diagrams (J − H) × (H − Ks), and radial density profiles, in order to determine the structure and the main astrophysical parameters of the best candidates. The verification of an overdensity as an embedded cluster requires a CMD consistent with a PMS content and MS stars, if any. From these results, we are able to verify if they are, in fact, embedded clusters. The results were, in general, rewarding: in a sample of 101 overdensities, the analysis provided 15 candidates, of which three were previously catalogued as clusters (CCCP-Cl 16, Treasure Chest, and FSR 1555), and the 12 remaining are discoveries that provided significant results, with ages not above 4.5Myr and distances compatible with the studied complex. The resulting values for the differential reddening of most candidates were relatively high, confirming that these clusters are still (partially or fully) embedded in the surrounding gas and dust, as a rule within a shell. Histograms with the distribution of the masses, ages, and distances were also produced, to give an overview of the results. We conclude that all the 12 newly found embedded clusters are related to the Carina complex.application/pdfengMonthly notices of the royal astronomical society. Oxford. Vol. 476, no. 1 (May 2018), p. 842–851Aglomerados estelaresFotometria astronômicaHertzsprungRussell and colourMagnitude diagramsGalaxies: photometryGalaxies: star clusters: generalNear-infrared study of new embedded clusters in the Carina complexEstrangeiroinfo: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:UFRGSORIGINAL001066810.pdf001066810.pdfTexto completo (inglês)application/pdf5221244http://www.lume.ufrgs.br/bitstream/10183/179602/1/001066810.pdf416791de4bee1a5c13dad09cf1b0b8afMD51TEXT001066810.pdf.txt001066810.pdf.txtExtracted Texttext/plain39369http://www.lume.ufrgs.br/bitstream/10183/179602/2/001066810.pdf.txt7133d52c896dbdeae1fda039a69954c8MD5210183/1796022023-07-15 03:28:14.792237oai:www.lume.ufrgs.br:10183/179602Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-07-15T06:28:14Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Near-infrared study of new embedded clusters in the Carina complex |
title |
Near-infrared study of new embedded clusters in the Carina complex |
spellingShingle |
Near-infrared study of new embedded clusters in the Carina complex Oliveira, Raphael Augusto Pereira de Aglomerados estelares Fotometria astronômica Hertzsprung Russell and colour Magnitude diagrams Galaxies: photometry Galaxies: star clusters: general |
title_short |
Near-infrared study of new embedded clusters in the Carina complex |
title_full |
Near-infrared study of new embedded clusters in the Carina complex |
title_fullStr |
Near-infrared study of new embedded clusters in the Carina complex |
title_full_unstemmed |
Near-infrared study of new embedded clusters in the Carina complex |
title_sort |
Near-infrared study of new embedded clusters in the Carina complex |
author |
Oliveira, Raphael Augusto Pereira de |
author_facet |
Oliveira, Raphael Augusto Pereira de Bica, Eduardo Luiz Damiani Bonatto, Charles Jose |
author_role |
author |
author2 |
Bica, Eduardo Luiz Damiani Bonatto, Charles Jose |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Oliveira, Raphael Augusto Pereira de Bica, Eduardo Luiz Damiani Bonatto, Charles Jose |
dc.subject.por.fl_str_mv |
Aglomerados estelares Fotometria astronômica |
topic |
Aglomerados estelares Fotometria astronômica Hertzsprung Russell and colour Magnitude diagrams Galaxies: photometry Galaxies: star clusters: general |
dc.subject.eng.fl_str_mv |
Hertzsprung Russell and colour Magnitude diagrams Galaxies: photometry Galaxies: star clusters: general |
description |
We analyse the nature of a sample of stellar overdensities that we found projected on the Carina complex. This study is based on the Two Micron All Sky Survey photometry and involves the photometry decontamination of field stars, elaboration of intrinsic colour–magnitude diagrams [CMDs; J × (J − Ks)], colour–colour diagrams (J − H) × (H − Ks), and radial density profiles, in order to determine the structure and the main astrophysical parameters of the best candidates. The verification of an overdensity as an embedded cluster requires a CMD consistent with a PMS content and MS stars, if any. From these results, we are able to verify if they are, in fact, embedded clusters. The results were, in general, rewarding: in a sample of 101 overdensities, the analysis provided 15 candidates, of which three were previously catalogued as clusters (CCCP-Cl 16, Treasure Chest, and FSR 1555), and the 12 remaining are discoveries that provided significant results, with ages not above 4.5Myr and distances compatible with the studied complex. The resulting values for the differential reddening of most candidates were relatively high, confirming that these clusters are still (partially or fully) embedded in the surrounding gas and dust, as a rule within a shell. Histograms with the distribution of the masses, ages, and distances were also produced, to give an overview of the results. We conclude that all the 12 newly found embedded clusters are related to the Carina complex. |
publishDate |
2018 |
dc.date.accessioned.fl_str_mv |
2018-06-21T02:32:07Z |
dc.date.issued.fl_str_mv |
2018 |
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/10183/179602 |
dc.identifier.issn.pt_BR.fl_str_mv |
0035-8711 |
dc.identifier.nrb.pt_BR.fl_str_mv |
001066810 |
identifier_str_mv |
0035-8711 001066810 |
url |
http://hdl.handle.net/10183/179602 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Monthly notices of the royal astronomical society. Oxford. Vol. 476, no. 1 (May 2018), p. 842–851 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFRGS instname:Universidade Federal do Rio Grande do Sul (UFRGS) instacron:UFRGS |
instname_str |
Universidade Federal do Rio Grande do Sul (UFRGS) |
instacron_str |
UFRGS |
institution |
UFRGS |
reponame_str |
Repositório Institucional da UFRGS |
collection |
Repositório Institucional da UFRGS |
bitstream.url.fl_str_mv |
http://www.lume.ufrgs.br/bitstream/10183/179602/1/001066810.pdf http://www.lume.ufrgs.br/bitstream/10183/179602/2/001066810.pdf.txt |
bitstream.checksum.fl_str_mv |
416791de4bee1a5c13dad09cf1b0b8af 7133d52c896dbdeae1fda039a69954c8 |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 |
repository.name.fl_str_mv |
Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS) |
repository.mail.fl_str_mv |
|
_version_ |
1801224945752080384 |