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1. Identificação
Tipo de ReferênciaArtigo em Revista Científica (Journal Article)
Sitemtc-m21c.sid.inpe.br
Código do Detentorisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identificador8JMKD3MGP3W34R/3TN989E
Repositóriosid.inpe.br/mtc-m21c/2019/07.26.13.59
Última Atualização2019:07.26.13.59.02 (UTC) simone
Repositório de Metadadossid.inpe.br/mtc-m21c/2019/07.26.13.59.02
Última Atualização dos Metadados2020:01.06.11.42.17 (UTC) administrator
DOI10.1093/mnras/stz621
ISSN0035-8711
1365-2966
Chave de CitaçãoLundWFVSBJK:2019:RaHySi
TítuloRadiation hydrodynamic simulations of massive star formation via gravitationally trapped H II regions – spherically symmetric ionized accretion flows
Ano2019
MêsMay
Data de Acesso09 maio 2024
Tipo de Trabalhojournal article
Tipo SecundárioPRE PI
Número de Arquivos1
Tamanho2563 KiB
2. Contextualização
Autor1 Lund, Kristin
2 Wood, K.
3 Falceta-Gonçalves, Diego
4 Vandenbroucke, Bert
5 Sartorio, Nina Sanches
6 Bonnell, I. A.
7 Johnston, K. G.
8 Keto, E.
ORCID1 0000-0003-0891-5398
2
3
4 0000-0001-7241-1704
Grupo1
2
3
4
5 AST-CEA-SESPG-INPE-MCTIC-GOV-BR
Afiliação1 University of St Andrews
2 University of St Andrews
3 University of St Andrews
4 University of St Andrews
5 Instituto Nacional de Pesquisas Espaciais (INPE)
6 University of St Andrews
7 The University of Leeds
8 Harvard-Smithsonian Center for Astrophysics
Endereço de e-Mail do Autor1 kblg@st-andrews.ac.uk
RevistaMonthly Notices of the Royal Astronomical Society
Volume485
Número3
Páginas3761-3770
Nota SecundáriaA1_QUÍMICA A1_INTERDISCIPLINAR A1_GEOCIÊNCIAS A1_ENGENHARIAS_III A2_MATEMÁTICA_/_PROBABILIDADE_E_ESTATÍSTICA A2_ASTRONOMIA_/_FÍSICA B2_ENSINO B5_ENGENHARIAS_IV
Histórico (UTC)2019-07-26 13:59:02 :: simone -> administrator ::
2019-07-26 13:59:04 :: administrator -> simone :: 2019
2019-07-26 13:59:51 :: simone -> administrator :: 2019
2020-01-06 11:42:17 :: administrator -> simone :: 2019
3. Conteúdo e estrutura
É a matriz ou uma cópia?é a matriz
Estágio do Conteúdoconcluido
Transferível1
Tipo do ConteúdoExternal Contribution
Tipo de Versãopublisher
Palavras-Chavehydrodynamics
radiative transfer
stars: formation
stars: massive
H II regions
ResumoThis paper investigates the gravitational trapping of H II regions predicted by steady-state analysis using radiation hydrodynamical simulations. We present idealized spherically symmetric radiation hydrodynamical simulations of the early evolution of H II regions including the gravity of the central source. As with analytic steady-state solutions of spherically symmetric ionized Bondi accretion flows, we find gravitationally trapped H II regions with accretion through the ionization front on to the source. We found that, for a constant ionizing luminosity, fluctuations in the ionization front are unstable. This instability only occurs in this spherically symmetric accretion geometry. In the context of massive star formation, the ionizing luminosity increases with time as the source accretes mass. The maximum radius of the recurring H II region increases on the accretion time-scale until it reaches the sonic radius, where the infall velocity equals the sound speed of the ionized gas, after which it enters a pressure-driven expansion phase. This expansion prevents accretion of gas through the ionization front, the accretion rate on to the star decreases to zero, and it stops growing from accretion. Because of the time required for any significant change in stellar mass and luminosity through accretion our simulations keep both mass and luminosity constant and follow the evolution from trapped to expanding in a piecewise manner. Implications of this evolution of H II regions include a continuation of accretion of material on to forming stars for a period after the star starts to emit ionizing radiation, and an extension of the lifetime of ultracompact H II regions.
ÁreaCEA
Arranjourlib.net > BDMCI > Fonds > Produção pgr ATUAIS > AST > Radiation hydrodynamic simulations...
Conteúdo da Pasta docacessar
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4. Condições de acesso e uso
URL dos dadoshttp://mtc-m21c.sid.inpe.br/ibi/8JMKD3MGP3W34R/3TN989E
URL dos dados zipadoshttp://mtc-m21c.sid.inpe.br/zip/8JMKD3MGP3W34R/3TN989E
Idiomaen
Arquivo Alvolund_radiation.pdf
Grupo de Usuáriossimone
Grupo de Leitoresadministrator
simone
Visibilidadeshown
Política de Arquivamentoallowpublisher allowfinaldraft
Permissão de Atualizaçãonão transferida
5. Fontes relacionadas
Unidades Imediatamente Superiores8JMKD3MGPCW/3F2NE4L
DivulgaçãoWEBSCI; PORTALCAPES; MGA; COMPENDEX.
Acervo Hospedeirourlib.net/www/2017/11.22.19.04
6. Notas
Campos Vaziosalternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn label lineage mark mirrorrepository nextedition notes parameterlist parentrepositories previousedition previouslowerunit progress project readpermission resumeid rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject tertiarymark tertiarytype url
7. Controle da descrição
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