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Metadados

1. Identificação
Tipo de ReferênciaArtigo em Evento (Conference Proceedings)
Sitemtc-m21b.sid.inpe.br
Código do Detentorisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identificador8JMKD3MGP3W34P/3L4Q8D8
Repositóriosid.inpe.br/mtc-m21b/2016/02.02.18.10
Última Atualização2020:09.30.17.02.18 (UTC) simone
Repositório de Metadadossid.inpe.br/mtc-m21b/2016/02.02.18.10.25
Última Atualização dos Metadados2020:09.30.17.02.19 (UTC) simone
Chave SecundáriaINPE--PRE/
Chave de CitaçãoTeodoroDRMSRGMPWCPFGHHNAJCHGHG:2016:UnNaHe
TítuloUnveiling the nature of the He II λ4686 periodic minima in η Carinae
Ano2016
Data de Acesso08 maio 2024
Tipo SecundárioPRE CI
Número de Arquivos1
Tamanho81 KiB
2. Contextualização
Autor 1 Teodoro, Mairan
 2 Damineli, Augusto
 3 Richardson, Noel
 4 Moffat, Anthony F. J.
 5 St-Jean, Lucas
 6 Russel, Christopher Michael Post
 7 Gull, Theodore R.
 8 Madura, Thomas
 9 Pollard, Karen
10 Walter, Frederick M.
11 Coimbra, Adriano
12 Prates, Rodrigo
13 Fernández-Lajús, Eduardo
14 Gamen, Roberto
15 Hickel, Gabriel
16 Henrique, William
17 Navarete, Felipe
18 Andrade, Thiago
19 Jablonski, Francisco José
20 Corcoran, Michael F.
21 Hamaguchi, Kenji
22 Groh, Jose H.
23 Hillier, Desmond John
24 Gerd, Weigelt
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19 DAS-CEA-INPE-MCTI-GOV-BR
Afiliação 1 USRA
 2 Universidade de São Paulo (USP)
 3 Université de Montréal
 4 Université de Montréal
 5 Université de Montréal
 6 NASA/GSFC
 7 NASA/GSFC
 8 USRA
 9 University of Canterbury
10 Stony Brook University
11 LNA
12 LNA
13 Universidad Nacional de La Plata
14 Universidad Nacional de La Plata
15 Universidade Federal de Itajubá (UNIFEI)
16 Universidade Federal de Itajubá (UNIFEI)
17 Universidade de São Paulo (USP)
18 Universidade de São Paulo (USP)
19 Instituto Nacional de Pesquisas Espaciais (INPE)
20 USRA
21 CRESST
22 Geneva Observatory
23 University of Pittsburgh
24 Max-Planck-Institut für Radioastronomie
Endereço de e-Mail do Autor 1
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19 chico@das.inpe.br
Nome do EventoAmerican Astronautical Society, Meeting, 227
Localização do EventoKissimmee, FL
Data4-8 Jan.
Histórico (UTC)2016-02-02 18:10:25 :: simone -> administrator ::
2018-06-04 02:40:33 :: administrator -> simone :: 2016
3. Conteúdo e estrutura
É a matriz ou uma cópia?é a matriz
Estágio do Conteúdoconcluido
Transferível1
Tipo do ConteúdoExternal Contribution
Tipo de Versãopublisher
Resumoη Carinae is known to be a massive binary system, but some of the orbital parameters remain uncertain. The nature of the periodic minima seen in several spectral features are associated with periastron passages near stellar conjunction, but its nature has been interpreted either as a low excitation event or as an eclipse of the hotter secondary star by the dense inner wind of the primary. We conducted an intense spectroscopic monitoring of the He II λ4686 emission line across the 2014.6 event using ground- and space-based telescopes. Comparison with results from the past two events confirmed the stability of the equivalent width and radial velocity of this line, as well as the strict periodicity of its minima. In combination with different other measurements, the orbital period is 2022.7 (±0.3) d. We adopted a power law model in combination with the total opacity in the line of sight to the apex of the wind-wind collision region obtained from hydrodynamic simulations to reproduce the observed He II λ4686 equivalent width curve. We constrained the orbital inclination to 135°153° and the longitude of periastron to 234°252°. Periastron passage occurred on T (2014.6)=2456874.4 (±1.3) d. With these orbital elements, we successfully reproduced both the equivalent width curve observed from our direct view of the central source and the polar view. This suggests that the He II λ4686 minimum is ultimately caused by an increase in the opacity in the line of sight to the emitting region as the secondary star moves behind the primary star and plunges into denser regions of its wind.
ÁreaCEA
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Conteúdo da Pasta agreement
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4. Condições de acesso e uso
URL dos dadoshttp://urlib.net/ibi/8JMKD3MGP3W34P/3L4Q8D8
URL dos dados zipadoshttp://urlib.net/zip/8JMKD3MGP3W34P/3L4Q8D8
Arquivo AlvoTeodoro_unveiling.pdf
Grupo de Usuáriossimone
Grupo de Leitoresadministrator
simone
Visibilidadeshown
Permissão de Atualizaçãonão transferida
5. Fontes relacionadas
Repositório Espelhourlib.net/www/2011/03.29.20.55
Unidades Imediatamente Superiores8JMKD3MGPCW/3ETR8EH
Lista de Itens Citando
Acervo Hospedeirosid.inpe.br/mtc-m21b/2013/09.26.14.25.20
6. Notas
Campos Vaziosarchivingpolicy archivist booktitle callnumber copyholder copyright creatorhistory descriptionlevel dissemination doi e-mailaddress edition editor format isbn issn keywords label language lineage mark nextedition notes numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisher publisheraddress readpermission rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle sponsor subject tertiarymark tertiarytype type url volume
7. Controle da descrição
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