Tracing the galactic spiral structure with embedded clusters
Autor(a) principal: | |
---|---|
Data de Publicação: | 2015 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/126955 |
Resumo: | In this work, we investigate the properties of 18 embedded clusters (ECs). The sample includes 11 previously known clusters and we report the discovery of seven ECs on WISE images, thus complementing our recent list of 437 new clusters. The main goal is to use such clusters to shed new light on the Galactic structure by tracing the spiral arms with cluster distances. Our results favour a four-armed spiral pattern tracing three arms, Sagitarius–Carina, Perseus, and the Outer arm. The Sagitarius–Carina spiral arm is probed in the borderline of the third and fourth quadrants at a distance from the Galactic Centre of d1 ∼6.4 kpc adopting R =7.2 kpc, or d2 ∼ 7.2 kpc for R = 8.0 kpc. Most ECs in our sample are located in the Perseus arm that is traced in the second and third quadrants and appear to be at Galactocentric distances in the range d1 = 9–10.5 kpc or d2 = 9.8–11.3 kpc. Dolidze 25, Bochum 2, and Camargo 445 are located in the Outer arm that extends along the second and third Galactic quadrants with a distance from the Galactic Centre in the range of d1 = 12.5–14.5 kpc or d2 = 13.5–15.5 kpc. We find further evidence that in the Galaxy ECs are predominantly located within the thin disc and along spiral arms. They are excellent tools for tracing these Galactic features and therefore new searches for ECs can contribute to a better understanding of the Galactic structure. We also report an EC aggregate located in key italicthe Perseus arm. |
id |
UFRGS-2_f0f7c28f08d6ba20214593ef63e4078d |
---|---|
oai_identifier_str |
oai:www.lume.ufrgs.br:10183/126955 |
network_acronym_str |
UFRGS-2 |
network_name_str |
Repositório Institucional da UFRGS |
repository_id_str |
|
spelling |
Camargo, Denilso da SilvaBonatto, Charles JoseBica, Eduardo Luiz Damiani2015-09-18T01:58:20Z20150035-8711http://hdl.handle.net/10183/126955000972233In this work, we investigate the properties of 18 embedded clusters (ECs). The sample includes 11 previously known clusters and we report the discovery of seven ECs on WISE images, thus complementing our recent list of 437 new clusters. The main goal is to use such clusters to shed new light on the Galactic structure by tracing the spiral arms with cluster distances. Our results favour a four-armed spiral pattern tracing three arms, Sagitarius–Carina, Perseus, and the Outer arm. The Sagitarius–Carina spiral arm is probed in the borderline of the third and fourth quadrants at a distance from the Galactic Centre of d1 ∼6.4 kpc adopting R =7.2 kpc, or d2 ∼ 7.2 kpc for R = 8.0 kpc. Most ECs in our sample are located in the Perseus arm that is traced in the second and third quadrants and appear to be at Galactocentric distances in the range d1 = 9–10.5 kpc or d2 = 9.8–11.3 kpc. Dolidze 25, Bochum 2, and Camargo 445 are located in the Outer arm that extends along the second and third Galactic quadrants with a distance from the Galactic Centre in the range of d1 = 12.5–14.5 kpc or d2 = 13.5–15.5 kpc. We find further evidence that in the Galaxy ECs are predominantly located within the thin disc and along spiral arms. They are excellent tools for tracing these Galactic features and therefore new searches for ECs can contribute to a better understanding of the Galactic structure. We also report an EC aggregate located in key italicthe Perseus arm.application/pdfengMonthly notices of the Royal Astronomical Society. Oxford. Vol. 450, no. 4 (July 2015), p. 4150-4160Aglomerados de galaxiasCentro galaticoAstronomical data bases: miscellaneousCataloguesGalaxy: discOpen clusters and associations: generalGalaxy: structureTracing the galactic spiral structure with embedded clustersEstrangeiroinfo: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:UFRGSORIGINAL000972233.pdf000972233.pdfTexto completo (inglês)application/pdf10374395http://www.lume.ufrgs.br/bitstream/10183/126955/1/000972233.pdfa2de964f09abf5043dfa99a69db26df1MD51TEXT000972233.pdf.txt000972233.pdf.txtExtracted Texttext/plain37995http://www.lume.ufrgs.br/bitstream/10183/126955/2/000972233.pdf.txtf76a52bbbf63871325d7d7a9d80df47eMD52THUMBNAIL000972233.pdf.jpg000972233.pdf.jpgGenerated Thumbnailimage/jpeg2160http://www.lume.ufrgs.br/bitstream/10183/126955/3/000972233.pdf.jpge12f447a8b7db29114b0ed31de17cce2MD5310183/1269552023-07-15 03:29:00.435092oai:www.lume.ufrgs.br:10183/126955Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2023-07-15T06:29Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Tracing the galactic spiral structure with embedded clusters |
title |
Tracing the galactic spiral structure with embedded clusters |
spellingShingle |
Tracing the galactic spiral structure with embedded clusters Camargo, Denilso da Silva Aglomerados de galaxias Centro galatico Astronomical data bases: miscellaneous Catalogues Galaxy: disc Open clusters and associations: general Galaxy: structure |
title_short |
Tracing the galactic spiral structure with embedded clusters |
title_full |
Tracing the galactic spiral structure with embedded clusters |
title_fullStr |
Tracing the galactic spiral structure with embedded clusters |
title_full_unstemmed |
Tracing the galactic spiral structure with embedded clusters |
title_sort |
Tracing the galactic spiral structure with embedded clusters |
author |
Camargo, Denilso da Silva |
author_facet |
Camargo, Denilso da Silva Bonatto, Charles Jose Bica, Eduardo Luiz Damiani |
author_role |
author |
author2 |
Bonatto, Charles Jose Bica, Eduardo Luiz Damiani |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Camargo, Denilso da Silva Bonatto, Charles Jose Bica, Eduardo Luiz Damiani |
dc.subject.por.fl_str_mv |
Aglomerados de galaxias Centro galatico |
topic |
Aglomerados de galaxias Centro galatico Astronomical data bases: miscellaneous Catalogues Galaxy: disc Open clusters and associations: general Galaxy: structure |
dc.subject.eng.fl_str_mv |
Astronomical data bases: miscellaneous Catalogues Galaxy: disc Open clusters and associations: general Galaxy: structure |
description |
In this work, we investigate the properties of 18 embedded clusters (ECs). The sample includes 11 previously known clusters and we report the discovery of seven ECs on WISE images, thus complementing our recent list of 437 new clusters. The main goal is to use such clusters to shed new light on the Galactic structure by tracing the spiral arms with cluster distances. Our results favour a four-armed spiral pattern tracing three arms, Sagitarius–Carina, Perseus, and the Outer arm. The Sagitarius–Carina spiral arm is probed in the borderline of the third and fourth quadrants at a distance from the Galactic Centre of d1 ∼6.4 kpc adopting R =7.2 kpc, or d2 ∼ 7.2 kpc for R = 8.0 kpc. Most ECs in our sample are located in the Perseus arm that is traced in the second and third quadrants and appear to be at Galactocentric distances in the range d1 = 9–10.5 kpc or d2 = 9.8–11.3 kpc. Dolidze 25, Bochum 2, and Camargo 445 are located in the Outer arm that extends along the second and third Galactic quadrants with a distance from the Galactic Centre in the range of d1 = 12.5–14.5 kpc or d2 = 13.5–15.5 kpc. We find further evidence that in the Galaxy ECs are predominantly located within the thin disc and along spiral arms. They are excellent tools for tracing these Galactic features and therefore new searches for ECs can contribute to a better understanding of the Galactic structure. We also report an EC aggregate located in key italicthe Perseus arm. |
publishDate |
2015 |
dc.date.accessioned.fl_str_mv |
2015-09-18T01:58:20Z |
dc.date.issued.fl_str_mv |
2015 |
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/10183/126955 |
dc.identifier.issn.pt_BR.fl_str_mv |
0035-8711 |
dc.identifier.nrb.pt_BR.fl_str_mv |
000972233 |
identifier_str_mv |
0035-8711 000972233 |
url |
http://hdl.handle.net/10183/126955 |
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. 450, no. 4 (July 2015), p. 4150-4160 |
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/10183/126955/1/000972233.pdf http://www.lume.ufrgs.br/bitstream/10183/126955/2/000972233.pdf.txt http://www.lume.ufrgs.br/bitstream/10183/126955/3/000972233.pdf.jpg |
bitstream.checksum.fl_str_mv |
a2de964f09abf5043dfa99a69db26df1 f76a52bbbf63871325d7d7a9d80df47e e12f447a8b7db29114b0ed31de17cce2 |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 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_ |
1801224886048260096 |