1. Identificação | |
Tipo de Referência | Artigo em Revista Científica (Journal Article) |
Site | mtc-m21b.sid.inpe.br |
Código do Detentor | isadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S |
Identificador | 8JMKD3MGP3W34P/3NNBM38 |
Repositório | sid.inpe.br/mtc-m21b/2017/04.17.18.28 |
Última Atualização | 2017:07.20.19.28.14 (UTC) administrator |
Repositório de Metadados | sid.inpe.br/mtc-m21b/2017/04.17.18.28.06 |
Última Atualização dos Metadados | 2021:07.28.23.02.13 (UTC) administrator |
DOI | 10.1051/0004-6361/201629521 |
ISSN | 0004-6361 1432-0746 |
Chave de Citação | CoelhoCáLiMaRuRu:2017:RoNaSo |
Título | The rotation-powered nature of some soft gamma-ray repeaters and anomalous X-ray pulsars |
Ano | 2017 |
Mês | Mar. |
Data de Acesso | 27 abr. 2024 |
Tipo de Trabalho | journal article |
Tipo Secundário | PRE PI |
Número de Arquivos | 1 |
Tamanho | 840 KiB |
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2. Contextualização | |
Autor | 1 Coelho, Jaziel Goulart 2 Cáceres, D. L. 3 Lima, R. C. R. 4 Malheiro, M. 5 Rueda, J. A. 6 Ruffini, R. |
Grupo | 1 AST-CEA-SESPG-INPE-MCTIC-GOV-BR |
Afiliação | 1 Instituto Nacional de Pesquisas Espaciais (INPE) 2 Sapienza Università di Roma 3 ICRANet 4 Instituto Tecnológico de Aeronáutica (ITA) 5 Sapienza Università di Roma 6 Sapienza Università di Roma |
Endereço de e-Mail do Autor | 1 jaziel.coelho@inpe.br |
Revista | Astronomy & Astrophysics |
Volume | 599 |
Número | A87 |
Nota Secundária | A1_GEOCIÊNCIAS A1_ENGENHARIAS_III A2_MATEMÁTICA_/_PROBABILIDADE_E_ESTATÍSTICA A2_INTERDISCIPLINAR A2_ENGENHARIAS_IV A2_ASTRONOMIA_/_FÍSICA B2_ENSINO C_ENGENHARIAS_II |
Histórico (UTC) | 2017-04-17 18:28:06 :: simone -> administrator :: 2017-04-17 18:28:06 :: administrator -> simone :: 2017 2017-04-17 18:29:36 :: simone -> administrator :: 2017 2017-06-26 02:45:08 :: administrator -> simone :: 2017 2017-12-11 12:18:59 :: simone -> administrator :: 2017 2021-07-28 23:02:13 :: administrator -> simone :: 2017 |
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3. Conteúdo e estrutura | |
É a matriz ou uma cópia? | é a matriz |
Estágio do Conteúdo | concluido |
Transferível | 1 |
Tipo do Conteúdo | External Contribution |
Tipo de Versão | publisher |
Palavras-Chave | pulsars: general stars: rotation stars: neutron stars: magnetic field |
Resumo | Context. Soft gamma-ray repeaters (SGRs) and anomalous X-ray pulsars (AXPs) are slow rotating isolated pulsars whose energy reservoir is still matter of debate. Adopting neutron star (NS) fiducial parameters; mass M = 1 : 4 M-circle dot, radius R = 10 km, and moment of inertia, I = 1045 g cm(2), the rotational energy loss,. E-rot, is lower than the observed luminosity (dominated by the X-rays) L-X for many of the sources. Aims. We investigate the possibility that some members of this family could be canonical rotation-powered pulsars using realistic NS structure parameters instead of fiducial values. Methods. We compute the NS mass, radius, moment of inertia and angular momentum from numerical integration of the axisymmetric general relativistic equations of equilibrium. We then compute the entire range of allowed values of the rotational energy loss,. E-rot, for the observed values of rotation period P and spin-down rate. P. We also estimate the surface magnetic field using a general relativistic model of a rotating magnetic dipole. Results. We show that realistic NS parameters lowers the estimated value of the magnetic field and radiation efficiency, LX/Erot, with respect to estimates based on fiducial NS parameters. We show that nine SGRs/AXPs can be described as canonical pulsars driven by the NS rotational energy, for L-X computed in the soft (2-10 keV) X-ray band. We compute the range of NS masses for which LX/Erot < 1. We discuss the observed hard X-ray emission in three sources of the group of nine potentially rotation-powered NSs. This additional hard X-ray component dominates over the soft one leading to LX/Erot > 1 in two of them. Conclusions. We show that 9 SGRs/AXPs can be rotation-powered NSs if we analyze their X-ray luminosity in the soft 2-10 keV band. Interestingly, four of them show radio emission and six have been associated with supernova remnants (including Swift J1834.9-0846 the first SGR observed with a surrounding wind nebula). These observations give additional support to our results of a natural explanation of these sources in terms of ordinary pulsars. Including the hard X-ray emission observed in three sources of the group of potential rotation-powered NSs, this number of sources with L-X/E-rot < 1 becomes seven. It remains open to verification 1) the accuracy of the estimated distances and 2) the possible contribution of the associated supernova remnants to the hard X-ray emission. |
Área | CEA |
Arranjo | urlib.net > BDMCI > Fonds > Produção pgr ATUAIS > AST > The rotation-powered nature... |
Conteúdo da Pasta doc | acessar |
Conteúdo da Pasta source | não têm arquivos |
Conteúdo da Pasta agreement | |
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4. Condições de acesso e uso | |
URL dos dados | http://urlib.net/ibi/8JMKD3MGP3W34P/3NNBM38 |
URL dos dados zipados | http://urlib.net/zip/8JMKD3MGP3W34P/3NNBM38 |
Idioma | en |
Grupo de Usuários | simone |
Grupo de Leitores | administrator simone |
Visibilidade | shown |
Política de Arquivamento | allowpublisher allowfinaldraft |
Permissão de Atualização | não transferida |
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5. Fontes relacionadas | |
Unidades Imediatamente Superiores | 8JMKD3MGPCW/3F2NE4L |
Lista de Itens Citando | |
Divulgação | WEBSCI; PORTALCAPES; COMPENDEX; SCOPUS. |
Acervo Hospedeiro | sid.inpe.br/mtc-m21b/2013/09.26.14.25.20 |
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6. Notas | |
Campos Vazios | alternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn label lineage mark mirrorrepository nextedition notes orcid pages parameterlist parentrepositories previousedition previouslowerunit progress project readpermission resumeid rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject targetfile tertiarymark tertiarytype url |
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7. Controle da descrição | |
e-Mail (login) | simone |
atualizar | |
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