| 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/3KA7KRH | |||
| Repositório | sid.inpe.br/mtc-m21b/2015/09.22.19.28 | |||
| Última Atualização | 2015:10.02.12.22.02 (UTC) administrator | |||
| Repositório de Metadados | sid.inpe.br/mtc-m21b/2015/09.22.19.28.26 | |||
| Última Atualização dos Metadados | 2018:06.04.02.55.41 (UTC) administrator | |||
| DOI | 10.1088/0004-637X/807/2/148 | |||
| ISSN | 0004-637X 1538-4357 | |||
| Chave de Citação | GuiriecKDZHNTBGGKMMRRRU:2015:NeMoGR | |||
| Título | Toward a better understanding of the GRB phenomenon: a new model for GRB prompt emission and its effects of the new L-i(NT)-E-peak,i(rest,NT) relation  | |||
| Ano | 2015 | |||
| Mês | July | |||
| Data de Acesso | 17 maio 2024 | |||
| Tipo de Trabalho | journal article | |||
| Tipo Secundário | PRE PI | |||
| Número de Arquivos | 1 | |||
| Tamanho | 22029 KiB | |||
| 2. Contextualização | ||||
| Autor | 1 Guiriec, S. 2 Kouvelitou, C. 3 Daigne, F. 4 Zhang, B. 5 Hascoet, R. 6 Nemmen, R. S. 7 Thompson, D. J. 8 Bhat, P. N. 9 Gehrels, S. 10 Gonzalez, M. M. 11 Kaneko, Y. 12 McEnery, J. 13 Mochkovitch, R. 14 Racusin, J. L. 15 Ryde, F. 16 Reyes, José Rodrigo Sacahui 17 Unsal, A. M. | |||
| Grupo | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 DAS-CEA-INPE-MCTI-GOV-BR | |||
| Afiliação | 1 NASA 2 NASA 3 4 5 6 7 NASA 8 9 NASA 10 11 12 NASA 13 14 NASA 15 16 Instituto Nacional de Pesquisas Espaciais (INPE) | |||
| Endereço de e-Mail do Autor | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 rodrigo.sacahui@inpe.br | |||
| Revista | Astrophysical Journal | |||
| Volume | 807 | |||
| Número | 2 | |||
| Nota Secundária | A1_QUÍMICA A1_INTERDISCIPLINAR A1_GEOCIÊNCIAS A1_ENGENHARIAS_III A1_ASTRONOMIA_/_FÍSICA A2_ENGENHARIAS_IV B2_ENSINO | |||
| Histórico (UTC) | 2015-09-22 19:28:26 :: simone -> administrator :: 2018-06-04 02:55:41 :: administrator -> simone :: 2015 | |||
| 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 | acceleration of particles black hole physics distance scale gamma-ray burst: general radiation mechanisms: non-thermal radiation mechanisms: thermal | |||
| Resumo | Gamma-ray burst (GRB) prompt emission spectra in the keV-MeV energy range are usually considered to be adequately fitted with the empirical Band function. Recent observations with the Fermi Gamma-ray Space Telescope (Fermi) revealed deviations from the Band function, sometimes in the form of an additional blackbody (BB) component, while on other occasions in the form of an additional power law (PL) component extending to high energies. In this article we investigate the possibility that the three components may be present simultaneously in the prompt emission spectra of two very bright GRBs (080916C and 090926A) observed with Fermi, and how the three components may affect the overall shape of the spectra. While the two GRBs are very different when fitted to a single Band function, they look like "twins" in the three-component scenario. Through fine-time spectroscopy down to the 100 ms timescale, we follow the evolution of the various components. We succeed in reducing the number of free parameters in the three-component model, which results in a new semi-empirical model-but with physical motivations-to be competitive with the Band function in terms of number of degrees of freedom. From this analysis using multiple components, the Band function is globally the most intense component, although the additional PL can overpower the others in sharp time structures. The Band function and the BB component are the most intense at early times and globally fade across the burst duration. The additional PL is the most intense component at late time and may be correlated with the extended high-energy emission observed thousands of seconds after the burst with Fermi/Large Area Telescope. Unexpectedly, this analysis also shows that the additional PL may be present from the very beginning of the burst, where it may even overpower the other components at low energy. We investigate the effect of the three components on the new time-resolved luminosity-hardness relation in both the observer and rest frames and show that a strong correlation exists between the flux of the non-thermal Band function and its E-peak only when the three components are fitted simultaneously to the data (i.e., F-i(NT)-E-peak,i(NT) relation). In addition, this result points toward a universal relation between those two quantities when transposed to the central engine rest frame for all GRBs (i.e., L-i(NT)-E-peak,i(rest,NT) relation). We discuss a possible theoretical interpretation of the three spectral components within this new empirical model. We suggest that (i) the BB component may be interpreted as the photosphere emission of a magnetized relativistic outflow, (ii) the Band component has synchrotron radiation in an optically thin region above the photosphere, either from internal shocks or magnetic field dissipation, and (iii) the extra PL component extending to high energies likely has an inverse Compton origin of some sort, even though its extension to a much lower energy remains a mystery. | |||
| Área | CEA | |||
| Arranjo | urlib.net > BDMCI > Fonds > Produção anterior à 2021 > DIDAS > Toward a better... | |||
| 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://mtc-m21b.sid.inpe.br/ibi/8JMKD3MGP3W34P/3KA7KRH | |||
| URL dos dados zipados | http://mtc-m21b.sid.inpe.br/zip/8JMKD3MGP3W34P/3KA7KRH | |||
| Idioma | en | |||
| Grupo de Usuários | simone | |||
| Grupo de Leitores | administrator simone | |||
| Visibilidade | shown | |||
| Política de Arquivamento | allowpublisher allowfinaldraft | |||
| Permissão de Atualização | não transferida | |||
| 5. Fontes relacionadas | ||||
| Repositório Espelho | urlib.net/www/2011/03.29.20.55 | |||
| Unidades Imediatamente Superiores | 8JMKD3MGPCW/3ETR8EH | |||
| Lista de Itens Citando | ||||
| Divulgação | WEBSCI; PORTALCAPES; COMPENDEX; SCOPUS. | |||
| Acervo Hospedeiro | sid.inpe.br/mtc-m21b/2013/09.26.14.25.20 | |||
| 6. Notas | ||||
| Campos Vazios | alternatejournal archivist callnumber copyholder copyright creatorhistory descriptionlevel e-mailaddress format isbn label lineage mark nextedition notes orcid pages parameterlist parentrepositories previousedition previouslowerunit progress project readpermission resumeid rightsholder schedulinginformation secondarydate secondarykey session shorttitle sponsor subject targetfile tertiarymark tertiarytype url | |||
| 7. Controle da descrição | ||||
| e-Mail (login) | simone | |||
| atualizar | ||||