Variações espaciais de propriedades físicas e químicas das nebulosas planetárias NGC 6302 e NGC 2440
Ano de defesa: | 2013 |
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Autor(a) principal: | |
Orientador(a): | |
Banca de defesa: | , , , |
Tipo de documento: | Tese |
Tipo de acesso: | Acesso aberto |
Idioma: | por |
Instituição de defesa: |
Universidade Federal de Santa Maria
|
Programa de Pós-Graduação: |
Programa de Pós-Graduação em Física
|
Departamento: |
Física
|
País: |
BR
|
Palavras-chave em Português: | |
Palavras-chave em Inglês: | |
Área do conhecimento CNPq: | |
Link de acesso: | http://repositorio.ufsm.br/handle/1/3921 |
Resumo: | We present an analysis of the physical and chemical conditions of the planetary nebulae NGC 6302 and NGC 2440 through spatially resolved spectroscopy. Long slit spectrophotometric data were obtained with the Goodman spectrograph attached to the 4.1m SOAR telescope in several different declinations with the slit on the East-West direction. From them, maps and spatial profiles were constructed. Electron densities were calculated from the [S II] and [Ar IV] sensors. For NGC 6302, a peaked distribution was found, with the densest area at the circumstellar region, reaching Ne ≈ 40000cm−3 and decreasing to Ne ≤ 1000cm−3 at the bipolar lobes. Knots with Ne ≈ 2000−3000cm−3 were also observed. In the maps of NGC 2440, densities reach more than 4500cm−3 in the central structures. Structures with 1000 < Ne < 1500cm−3 are associated with the bipolar lobes at P.A.≈ 60◦ and P.A.≈ 85◦. The average values of the electron temperature maps in NGC 6302 were 12304K and 17380K for Te(NII) and Te(OIII), respectively. In NGC 2440, these same values were 11273 K and 13722K, respectively. Small temperature flutuations on the plane of the sky were obtained, with 0,00196 ≤ t2 s (NII) ≤ 0,01198 and 0,00777 ≤ t2 s (OIII) ≤ 0,00181 for NGC 6302, and 0,00107 ≤ t2 s (NII) ≤ 0,00977 and 0,00131 ≤ t2 s (OIII) ≤ 0,01728 for NGC 2440. Abundances of N+, O+, S+, O2+, Ne2+, Ar3+ relative to H+ were determined from collisionally excited lines, and relative abundances of He+ and He2+ from recombination lines. The highest dispersions relative to the mean ionic abundances (50% to 70%) were observed for the N+/H+, O+/H+ and S+/H+ maps. Regions suggesting an inhomogeneous distribution of He and N were observed in the maps of He/H and N+/O+ of the nebulae. In the diagram logHa/[NII] versus logHa/[SII] no indication of shock excitation in any one of the structures of these objects was found in the spatial scale of our analysis. |
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2017-05-022017-05-022013-08-30RAUBER, Aline Beatriz. Spatial variations of physical and chemical properties of the planetary nebulae NGC 6302 and NGC 2440. 2013. 192 f. Tese (Doutorado em Física) - Universidade Federal de Santa Maria, Santa Maria, 2013.http://repositorio.ufsm.br/handle/1/3921We present an analysis of the physical and chemical conditions of the planetary nebulae NGC 6302 and NGC 2440 through spatially resolved spectroscopy. Long slit spectrophotometric data were obtained with the Goodman spectrograph attached to the 4.1m SOAR telescope in several different declinations with the slit on the East-West direction. From them, maps and spatial profiles were constructed. Electron densities were calculated from the [S II] and [Ar IV] sensors. For NGC 6302, a peaked distribution was found, with the densest area at the circumstellar region, reaching Ne ≈ 40000cm−3 and decreasing to Ne ≤ 1000cm−3 at the bipolar lobes. Knots with Ne ≈ 2000−3000cm−3 were also observed. In the maps of NGC 2440, densities reach more than 4500cm−3 in the central structures. Structures with 1000 < Ne < 1500cm−3 are associated with the bipolar lobes at P.A.≈ 60◦ and P.A.≈ 85◦. The average values of the electron temperature maps in NGC 6302 were 12304K and 17380K for Te(NII) and Te(OIII), respectively. In NGC 2440, these same values were 11273 K and 13722K, respectively. Small temperature flutuations on the plane of the sky were obtained, with 0,00196 ≤ t2 s (NII) ≤ 0,01198 and 0,00777 ≤ t2 s (OIII) ≤ 0,00181 for NGC 6302, and 0,00107 ≤ t2 s (NII) ≤ 0,00977 and 0,00131 ≤ t2 s (OIII) ≤ 0,01728 for NGC 2440. Abundances of N+, O+, S+, O2+, Ne2+, Ar3+ relative to H+ were determined from collisionally excited lines, and relative abundances of He+ and He2+ from recombination lines. The highest dispersions relative to the mean ionic abundances (50% to 70%) were observed for the N+/H+, O+/H+ and S+/H+ maps. Regions suggesting an inhomogeneous distribution of He and N were observed in the maps of He/H and N+/O+ of the nebulae. In the diagram logHa/[NII] versus logHa/[SII] no indication of shock excitation in any one of the structures of these objects was found in the spatial scale of our analysis.Apresentamos uma análise das condições físicas e químicas das nebulosas planetárias NGC 6302 e NGC 2440 através de espectroscopia espacialmente resolvida. Dados espectrofotométricos de fenda longa foram obtidos com o espectrógrafo Goodman acoplado ao telescópio SOAR de 4,1m em várias declinações diferentes com a fenda na direção Leste-Oeste. A partir deles, mapas e perfis espaciais foram construídos. Densidades eletrônicas foram calculadas a partir dos sensores [S II] e [Ar IV]. Para NGC 6302, uma distribuição de pico foi encontrada, com a área mais densa na região circum-estelar, atingindo Ne ≈ 40000cm−3 e diminuindo para Ne ≤ 1000cm−3 nos lóbulos bipolares. Condensações com Ne ≈ 2000−3000cm−3 foram também observadas. Nos mapas de NGC 2440, as densidades chegam a mais de 4500cm−3 nas estruturas centrais. Estruturas com 1000 < Ne < 1500cm−3 são associadas com os lóbulos bipolares em P.A.≈ 60◦ e P.A.≈ 85◦. Os valores médios dos mapas de temperatura eletrônica de NGC 6302 foram 12304K e 17380K para Te(NII) e Te(OIII), respectivamente. Em NGC 2440, estes mesmos parâmetros foram 11273K e 13722K, respectivamente. Pequenas flutuações de temperatura no plano do céu foram obtidas, com 0,00196 ≤ t2 s (NII) ≤ 0,01198 e 0,00777 ≤ t2 s (OIII) ≤ 0,00181 para NGC 6302, e 0,00107 ≤ t2 s (NII) ≤ 0,00977 e 0,00131 ≤ t2 s (OIII) ≤ 0,01728 para NGC 2440. Abundâncias de N+, O+, S+, O2+, Ne2+, Ar3+ relativas ao H+ foram determinadas a partir de linhas excitadas colisionalmente, e abundâncias relativas de He+ e He2+ a partir de linhas de recombinação. As maiores dispersões em relação às abundâncias iônicas médias (50% a 70%) foram observadas para os mapas N+/H+, O+/H+ e S+/H+. Regiões que sugerem uma distribuição inomogênea de He e N foram observadas nos mapas de He/H e N+/O+ das nebulosas. No diagrama logHa/[NII] versus logHa/[SII] nenhuma indicação de excitação por choque em qualquer uma das estruturas destes objetos foi encontrada na escala espacial de nossa análise.Conselho Nacional de Desenvolvimento Científico e Tecnológicoapplication/pdfporUniversidade Federal de Santa MariaPrograma de Pós-Graduação em FísicaUFSMBRFísicaMeio interestelarNebulosas planetáriasEspectroscopiaInterstellar mediumPlanetary nebulaeSpectroscopyCNPQ::CIENCIAS EXATAS E DA TERRA::FISICAVariações espaciais de propriedades físicas e químicas das nebulosas planetárias NGC 6302 e NGC 2440Spatial variations of physical and chemical properties of the planetary nebulae NGC 6302 and NGC 2440info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisCopetti, Marcus Vinicius Fontanahttp://lattes.cnpq.br/2566375872711558Costa, Roberto Dell'aglio Dias dahttp://lattes.cnpq.br/8031266925341697Oliveira, Vinicius de Abreuhttp://lattes.cnpq.br/2010283569069232Schmidt, Alex Andrehttp://lattes.cnpq.br/4279165283013379Riffel, Rogemar Andréhttp://lattes.cnpq.br/7535636807201892http://lattes.cnpq.br/7034926604788495Rauber, Aline Beatriz1005000000064003005003003003003000ff1515c-d729-47fe-826d-51e2734b9f5a5999c8b6-2752-49f6-b8bd-39f990109c2d0d8e0cb6-134e-4137-8e9b-8e02ad8502a433431f5e-64c0-44e2-b245-10d35db7280ccb882c1d-e990-401c-abce-5fb021a2124ea2f8be19-a065-4527-863c-f3806b61e5c0info:eu-repo/semantics/openAccessreponame:Manancial - Repositório Digital da UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMORIGINALRAUBER, ALINE BEATRIZ.pdfapplication/pdf5035882http://repositorio.ufsm.br/bitstream/1/3921/1/RAUBER%2c%20ALINE%20BEATRIZ.pdf59b90b2f981cfe739a7a866242863e84MD51TEXTRAUBER, ALINE BEATRIZ.pdf.txtRAUBER, ALINE BEATRIZ.pdf.txtExtracted texttext/plain185516http://repositorio.ufsm.br/bitstream/1/3921/2/RAUBER%2c%20ALINE%20BEATRIZ.pdf.txt6be5f1c0986536839399bfddfe8d35a2MD52THUMBNAILRAUBER, ALINE BEATRIZ.pdf.jpgRAUBER, ALINE BEATRIZ.pdf.jpgIM Thumbnailimage/jpeg4778http://repositorio.ufsm.br/bitstream/1/3921/3/RAUBER%2c%20ALINE%20BEATRIZ.pdf.jpgbb03a09145950473cb66bdee32def377MD531/39212022-04-12 11:35:30.824oai:repositorio.ufsm.br:1/3921Repositório Institucionalhttp://repositorio.ufsm.br/PUBhttp://repositorio.ufsm.br/oai/requestopendoar:39132022-04-12T14:35:30Manancial - Repositório Digital da UFSM - Universidade Federal de Santa Maria (UFSM)false |
dc.title.por.fl_str_mv |
Variações espaciais de propriedades físicas e químicas das nebulosas planetárias NGC 6302 e NGC 2440 |
dc.title.alternative.eng.fl_str_mv |
Spatial variations of physical and chemical properties of the planetary nebulae NGC 6302 and NGC 2440 |
title |
Variações espaciais de propriedades físicas e químicas das nebulosas planetárias NGC 6302 e NGC 2440 |
spellingShingle |
Variações espaciais de propriedades físicas e químicas das nebulosas planetárias NGC 6302 e NGC 2440 Rauber, Aline Beatriz Meio interestelar Nebulosas planetárias Espectroscopia Interstellar medium Planetary nebulae Spectroscopy CNPQ::CIENCIAS EXATAS E DA TERRA::FISICA |
title_short |
Variações espaciais de propriedades físicas e químicas das nebulosas planetárias NGC 6302 e NGC 2440 |
title_full |
Variações espaciais de propriedades físicas e químicas das nebulosas planetárias NGC 6302 e NGC 2440 |
title_fullStr |
Variações espaciais de propriedades físicas e químicas das nebulosas planetárias NGC 6302 e NGC 2440 |
title_full_unstemmed |
Variações espaciais de propriedades físicas e químicas das nebulosas planetárias NGC 6302 e NGC 2440 |
title_sort |
Variações espaciais de propriedades físicas e químicas das nebulosas planetárias NGC 6302 e NGC 2440 |
author |
Rauber, Aline Beatriz |
author_facet |
Rauber, Aline Beatriz |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Copetti, Marcus Vinicius Fontana |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/2566375872711558 |
dc.contributor.referee1.fl_str_mv |
Costa, Roberto Dell'aglio Dias da |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/8031266925341697 |
dc.contributor.referee2.fl_str_mv |
Oliveira, Vinicius de Abreu |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/2010283569069232 |
dc.contributor.referee3.fl_str_mv |
Schmidt, Alex Andre |
dc.contributor.referee3Lattes.fl_str_mv |
http://lattes.cnpq.br/4279165283013379 |
dc.contributor.referee4.fl_str_mv |
Riffel, Rogemar André |
dc.contributor.referee4Lattes.fl_str_mv |
http://lattes.cnpq.br/7535636807201892 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/7034926604788495 |
dc.contributor.author.fl_str_mv |
Rauber, Aline Beatriz |
contributor_str_mv |
Copetti, Marcus Vinicius Fontana Costa, Roberto Dell'aglio Dias da Oliveira, Vinicius de Abreu Schmidt, Alex Andre Riffel, Rogemar André |
dc.subject.por.fl_str_mv |
Meio interestelar Nebulosas planetárias Espectroscopia |
topic |
Meio interestelar Nebulosas planetárias Espectroscopia Interstellar medium Planetary nebulae Spectroscopy CNPQ::CIENCIAS EXATAS E DA TERRA::FISICA |
dc.subject.eng.fl_str_mv |
Interstellar medium Planetary nebulae Spectroscopy |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS EXATAS E DA TERRA::FISICA |
description |
We present an analysis of the physical and chemical conditions of the planetary nebulae NGC 6302 and NGC 2440 through spatially resolved spectroscopy. Long slit spectrophotometric data were obtained with the Goodman spectrograph attached to the 4.1m SOAR telescope in several different declinations with the slit on the East-West direction. From them, maps and spatial profiles were constructed. Electron densities were calculated from the [S II] and [Ar IV] sensors. For NGC 6302, a peaked distribution was found, with the densest area at the circumstellar region, reaching Ne ≈ 40000cm−3 and decreasing to Ne ≤ 1000cm−3 at the bipolar lobes. Knots with Ne ≈ 2000−3000cm−3 were also observed. In the maps of NGC 2440, densities reach more than 4500cm−3 in the central structures. Structures with 1000 < Ne < 1500cm−3 are associated with the bipolar lobes at P.A.≈ 60◦ and P.A.≈ 85◦. The average values of the electron temperature maps in NGC 6302 were 12304K and 17380K for Te(NII) and Te(OIII), respectively. In NGC 2440, these same values were 11273 K and 13722K, respectively. Small temperature flutuations on the plane of the sky were obtained, with 0,00196 ≤ t2 s (NII) ≤ 0,01198 and 0,00777 ≤ t2 s (OIII) ≤ 0,00181 for NGC 6302, and 0,00107 ≤ t2 s (NII) ≤ 0,00977 and 0,00131 ≤ t2 s (OIII) ≤ 0,01728 for NGC 2440. Abundances of N+, O+, S+, O2+, Ne2+, Ar3+ relative to H+ were determined from collisionally excited lines, and relative abundances of He+ and He2+ from recombination lines. The highest dispersions relative to the mean ionic abundances (50% to 70%) were observed for the N+/H+, O+/H+ and S+/H+ maps. Regions suggesting an inhomogeneous distribution of He and N were observed in the maps of He/H and N+/O+ of the nebulae. In the diagram logHa/[NII] versus logHa/[SII] no indication of shock excitation in any one of the structures of these objects was found in the spatial scale of our analysis. |
publishDate |
2013 |
dc.date.issued.fl_str_mv |
2013-08-30 |
dc.date.accessioned.fl_str_mv |
2017-05-02 |
dc.date.available.fl_str_mv |
2017-05-02 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
RAUBER, Aline Beatriz. Spatial variations of physical and chemical properties of the planetary nebulae NGC 6302 and NGC 2440. 2013. 192 f. Tese (Doutorado em Física) - Universidade Federal de Santa Maria, Santa Maria, 2013. |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufsm.br/handle/1/3921 |
identifier_str_mv |
RAUBER, Aline Beatriz. Spatial variations of physical and chemical properties of the planetary nebulae NGC 6302 and NGC 2440. 2013. 192 f. Tese (Doutorado em Física) - Universidade Federal de Santa Maria, Santa Maria, 2013. |
url |
http://repositorio.ufsm.br/handle/1/3921 |
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Universidade Federal de Santa Maria |
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