Reddening and age for 13 southern Galactic open clusters determined from integrated spectra
Autor(a) principal: | |
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Data de Publicação: | 2001 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/98503 |
Resumo: | In this study we present flux-calibrated integrated spectra in the range 3800–6800 Å for 13 concentrated open clusters with Galactic longitudes between 219° and 316°, nine of which have not been previously studied. Using the equivalent widths of the Balmer lines and comparing the cluster spectra with template spectra of Magellanic Clouds and Galactic star clusters with known parameters, we derive both foreground interstellar reddening values and age. For nine clusters these two parameters have been determined for the first time, while for the rest of the sample the results show good agreement with previous studies. The present analysis indicates four very young (Hogg 11, NGC 5606, vdB-RN 80 and Pismis 17), seven moderately young (ESO 429-SC13, Hogg 3, Hogg 12, Haffner 7, BH 87, NGC 2368 and Bochum 12) and two intermediate-age (Berkeley 75 and NGC 2635) open clusters. The derived foreground interstellar reddening values are in the range 0.00 <_ E(B−V ) <_ 0.38. The age and reddening distributions of the present sample of relatively faint open clusters match those of open clusters with known parameters in a 90° sector centered at l = 270° . |
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Ahumada, Andrea VeronicaClaria Olmedo, Juan JoseBica, Eduardo Luiz DamianiDutra, Carlos MaximilianoTorres, Maria Cristina2014-07-24T02:04:20Z20010004-6361http://hdl.handle.net/10183/98503000311397In this study we present flux-calibrated integrated spectra in the range 3800–6800 Å for 13 concentrated open clusters with Galactic longitudes between 219° and 316°, nine of which have not been previously studied. Using the equivalent widths of the Balmer lines and comparing the cluster spectra with template spectra of Magellanic Clouds and Galactic star clusters with known parameters, we derive both foreground interstellar reddening values and age. For nine clusters these two parameters have been determined for the first time, while for the rest of the sample the results show good agreement with previous studies. The present analysis indicates four very young (Hogg 11, NGC 5606, vdB-RN 80 and Pismis 17), seven moderately young (ESO 429-SC13, Hogg 3, Hogg 12, Haffner 7, BH 87, NGC 2368 and Bochum 12) and two intermediate-age (Berkeley 75 and NGC 2635) open clusters. The derived foreground interstellar reddening values are in the range 0.00 <_ E(B−V ) <_ 0.38. The age and reddening distributions of the present sample of relatively faint open clusters match those of open clusters with known parameters in a 90° sector centered at l = 270° .application/pdfengAstronomy and astrophysics. Les Ulis. Vol. 377, no. 3 (Oct. 2001), p. 845-853Espectros astronômicosMateria interestelarAglomerados estelaresEvolucao estelarMethods: observationalTechniques: spectroscopicOpen clusters and associations: generalReddening and age for 13 southern Galactic open clusters determined from integrated spectraEstrangeiroinfo: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:UFRGSORIGINAL000311397.pdf000311397.pdfTexto completo (inglês)application/pdf417922http://www.lume.ufrgs.br/bitstream/10183/98503/1/000311397.pdf71971b7721a39aa2d6c5881db613e351MD51TEXT000311397.pdf.txt000311397.pdf.txtExtracted Texttext/plain38580http://www.lume.ufrgs.br/bitstream/10183/98503/2/000311397.pdf.txt4d76b8e07178b17d56e5111fde6e63b6MD52THUMBNAIL000311397.pdf.jpg000311397.pdf.jpgGenerated Thumbnailimage/jpeg1938http://www.lume.ufrgs.br/bitstream/10183/98503/3/000311397.pdf.jpg63263d6eb6699704162e2086f6e94ff8MD5310183/985032024-04-12 06:19:53.764406oai:www.lume.ufrgs.br:10183/98503Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2024-04-12T09:19:53Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Reddening and age for 13 southern Galactic open clusters determined from integrated spectra |
title |
Reddening and age for 13 southern Galactic open clusters determined from integrated spectra |
spellingShingle |
Reddening and age for 13 southern Galactic open clusters determined from integrated spectra Ahumada, Andrea Veronica Espectros astronômicos Materia interestelar Aglomerados estelares Evolucao estelar Methods: observational Techniques: spectroscopic Open clusters and associations: general |
title_short |
Reddening and age for 13 southern Galactic open clusters determined from integrated spectra |
title_full |
Reddening and age for 13 southern Galactic open clusters determined from integrated spectra |
title_fullStr |
Reddening and age for 13 southern Galactic open clusters determined from integrated spectra |
title_full_unstemmed |
Reddening and age for 13 southern Galactic open clusters determined from integrated spectra |
title_sort |
Reddening and age for 13 southern Galactic open clusters determined from integrated spectra |
author |
Ahumada, Andrea Veronica |
author_facet |
Ahumada, Andrea Veronica Claria Olmedo, Juan Jose Bica, Eduardo Luiz Damiani Dutra, Carlos Maximiliano Torres, Maria Cristina |
author_role |
author |
author2 |
Claria Olmedo, Juan Jose Bica, Eduardo Luiz Damiani Dutra, Carlos Maximiliano Torres, Maria Cristina |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Ahumada, Andrea Veronica Claria Olmedo, Juan Jose Bica, Eduardo Luiz Damiani Dutra, Carlos Maximiliano Torres, Maria Cristina |
dc.subject.por.fl_str_mv |
Espectros astronômicos Materia interestelar Aglomerados estelares Evolucao estelar |
topic |
Espectros astronômicos Materia interestelar Aglomerados estelares Evolucao estelar Methods: observational Techniques: spectroscopic Open clusters and associations: general |
dc.subject.eng.fl_str_mv |
Methods: observational Techniques: spectroscopic Open clusters and associations: general |
description |
In this study we present flux-calibrated integrated spectra in the range 3800–6800 Å for 13 concentrated open clusters with Galactic longitudes between 219° and 316°, nine of which have not been previously studied. Using the equivalent widths of the Balmer lines and comparing the cluster spectra with template spectra of Magellanic Clouds and Galactic star clusters with known parameters, we derive both foreground interstellar reddening values and age. For nine clusters these two parameters have been determined for the first time, while for the rest of the sample the results show good agreement with previous studies. The present analysis indicates four very young (Hogg 11, NGC 5606, vdB-RN 80 and Pismis 17), seven moderately young (ESO 429-SC13, Hogg 3, Hogg 12, Haffner 7, BH 87, NGC 2368 and Bochum 12) and two intermediate-age (Berkeley 75 and NGC 2635) open clusters. The derived foreground interstellar reddening values are in the range 0.00 <_ E(B−V ) <_ 0.38. The age and reddening distributions of the present sample of relatively faint open clusters match those of open clusters with known parameters in a 90° sector centered at l = 270° . |
publishDate |
2001 |
dc.date.issued.fl_str_mv |
2001 |
dc.date.accessioned.fl_str_mv |
2014-07-24T02:04:20Z |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
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article |
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publishedVersion |
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http://hdl.handle.net/10183/98503 |
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0004-6361 |
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000311397 |
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0004-6361 000311397 |
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http://hdl.handle.net/10183/98503 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Astronomy and astrophysics. Les Ulis. Vol. 377, no. 3 (Oct. 2001), p. 845-853 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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