Long-slit spectrophotometry of the H II regions Gum 38a and Gum 38b
Main Author: | |
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Publication Date: | 1997 |
Other Authors: | , , |
Format: | Article |
Language: | eng |
Source: | Repositório Institucional da UFRGS |
Download full: | http://hdl.handle.net/10183/108771 |
Summary: | We present new long-slit spectrophotometric observations in the range 3700-7200 Å of the H II regions Gum 38a and Gum 38b (RCW 57). We study the spatial distribution of reddenig ad excitation throughout the complex by means of emission-line intensities. From the strong re de mg dtfference, we confirm that Gum 38a and Gum 38b are two individual complexes, the former bemg m the foreground. We derive chemical abundances in both nebulae, the results of which are similar to those of the Orion Nebula. This is consistent with the fact that the three nebulae are located at similar Galactocentric d s tances. We also discuss the general ionization structure of the complexes based on the spectral propertles of several filaments and diffuse emission around the central bright knots of Gum 38a and beyond. In particular, we found an interesting filament with strong [O I] λλ6300, 6364 lines. |
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Girardi, Leo AlbertoBica, Eduardo Luiz DamianiPastoriza, Miriani GriseldaWinge, Claudia2015-01-07T02:10:38Z19970004-637Xhttp://hdl.handle.net/10183/108771000152381We present new long-slit spectrophotometric observations in the range 3700-7200 Å of the H II regions Gum 38a and Gum 38b (RCW 57). We study the spatial distribution of reddenig ad excitation throughout the complex by means of emission-line intensities. From the strong re de mg dtfference, we confirm that Gum 38a and Gum 38b are two individual complexes, the former bemg m the foreground. We derive chemical abundances in both nebulae, the results of which are similar to those of the Orion Nebula. This is consistent with the fact that the three nebulae are located at similar Galactocentric d s tances. We also discuss the general ionization structure of the complexes based on the spectral propertles of several filaments and diffuse emission around the central bright knots of Gum 38a and beyond. In particular, we found an interesting filament with strong [O I] λλ6300, 6364 lines.application/pdfengThe astrophysical journal. Chicago. Vol. 486, no. 2, pt. 1 (Sept. 1997), p. 847-861Regiões HIIEspectros astronômicosFotometria astronômicaH II regionsISM: abundancesISM: individual (RCW 57)ISM: structureLong-slit spectrophotometry of the H II regions Gum 38a and Gum 38bEstrangeiroinfo: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:UFRGSORIGINAL000152381.pdf000152381.pdfTexto completo (inglês)application/pdf1232194http://www.lume.ufrgs.br/bitstream/10183/108771/1/000152381.pdf1c176457fb560bf78bc197dc375a69f3MD51TEXT000152381.pdf.txt000152381.pdf.txtExtracted Texttext/plain15http://www.lume.ufrgs.br/bitstream/10183/108771/2/000152381.pdf.txtece7c6d180cd5c24e9c27a00da659ce9MD52THUMBNAIL000152381.pdf.jpg000152381.pdf.jpgGenerated Thumbnailimage/jpeg2175http://www.lume.ufrgs.br/bitstream/10183/108771/3/000152381.pdf.jpgd94e18ded46ce50c4b16213e5c329ca2MD5310183/1087712024-04-13 06:44:40.246598oai:www.lume.ufrgs.br:10183/108771Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2024-04-13T09:44:40Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Long-slit spectrophotometry of the H II regions Gum 38a and Gum 38b |
title |
Long-slit spectrophotometry of the H II regions Gum 38a and Gum 38b |
spellingShingle |
Long-slit spectrophotometry of the H II regions Gum 38a and Gum 38b Girardi, Leo Alberto Regiões HII Espectros astronômicos Fotometria astronômica H II regions ISM: abundances ISM: individual (RCW 57) ISM: structure |
title_short |
Long-slit spectrophotometry of the H II regions Gum 38a and Gum 38b |
title_full |
Long-slit spectrophotometry of the H II regions Gum 38a and Gum 38b |
title_fullStr |
Long-slit spectrophotometry of the H II regions Gum 38a and Gum 38b |
title_full_unstemmed |
Long-slit spectrophotometry of the H II regions Gum 38a and Gum 38b |
title_sort |
Long-slit spectrophotometry of the H II regions Gum 38a and Gum 38b |
author |
Girardi, Leo Alberto |
author_facet |
Girardi, Leo Alberto Bica, Eduardo Luiz Damiani Pastoriza, Miriani Griselda Winge, Claudia |
author_role |
author |
author2 |
Bica, Eduardo Luiz Damiani Pastoriza, Miriani Griselda Winge, Claudia |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Girardi, Leo Alberto Bica, Eduardo Luiz Damiani Pastoriza, Miriani Griselda Winge, Claudia |
dc.subject.por.fl_str_mv |
Regiões HII Espectros astronômicos Fotometria astronômica |
topic |
Regiões HII Espectros astronômicos Fotometria astronômica H II regions ISM: abundances ISM: individual (RCW 57) ISM: structure |
dc.subject.eng.fl_str_mv |
H II regions ISM: abundances ISM: individual (RCW 57) ISM: structure |
description |
We present new long-slit spectrophotometric observations in the range 3700-7200 Å of the H II regions Gum 38a and Gum 38b (RCW 57). We study the spatial distribution of reddenig ad excitation throughout the complex by means of emission-line intensities. From the strong re de mg dtfference, we confirm that Gum 38a and Gum 38b are two individual complexes, the former bemg m the foreground. We derive chemical abundances in both nebulae, the results of which are similar to those of the Orion Nebula. This is consistent with the fact that the three nebulae are located at similar Galactocentric d s tances. We also discuss the general ionization structure of the complexes based on the spectral propertles of several filaments and diffuse emission around the central bright knots of Gum 38a and beyond. In particular, we found an interesting filament with strong [O I] λλ6300, 6364 lines. |
publishDate |
1997 |
dc.date.issued.fl_str_mv |
1997 |
dc.date.accessioned.fl_str_mv |
2015-01-07T02:10:38Z |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
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0004-637X |
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000152381 |
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http://hdl.handle.net/10183/108771 |
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eng |
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dc.relation.ispartof.pt_BR.fl_str_mv |
The astrophysical journal. Chicago. Vol. 486, no. 2, pt. 1 (Sept. 1997), p. 847-861 |
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openAccess |
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