Fechar

1. Identificação
Tipo de ReferênciaArtigo em Evento (Conference Proceedings)
Sitemtc-m21c.sid.inpe.br
Código do Detentorisadg {BR SPINPE} ibi 8JMKD3MGPCW/3DT298S
Identificador8JMKD3MGP3W34R/44D4P5P
Repositóriosid.inpe.br/mtc-m21c/2021/03.25.12.17
Repositório de Metadadossid.inpe.br/mtc-m21c/2021/03.25.12.17.20
Última Atualização dos Metadados2022:04.03.19.25.09 (UTC) administrator
Chave SecundáriaINPE--PRE/
Chave de CitaçãoSantosStecCastDAmi:2021:StChSp
TítuloStudy and characterization of the spectral states of 1E 1740.7-2942 in hard X-rays
Ano2021
Data de Acesso11 maio 2024
Tipo SecundárioPRE CN
2. Contextualização
Autor1 Santos, Jurandi Leão
2 Stecchini, Paulo Eduardo Freires
3 Castro, M.
4 D'Amico, Flávio
Grupo1 GESAST-CEA-DIPGR-INPE-MCTI-GOV-BR
2 AST-CEA-DIPGR-INPE-MCTI-GOV-BR
3
4 DIAST-CGCE-INPE-MCTI-GOV-BR
Afiliação1 Instituto Nacional de Pesquisas Espaciais (INPE)
2 Instituto Nacional de Pesquisas Espaciais (INPE)
3 Universidade Estadual de Campinas (UNICAMP)
4 Instituto Nacional de Pesquisas Espaciais (INPE)
Endereço de e-Mail do Autor1
2 du.stecchini@gmail.com
3
4 flavio.damico@inpe.br
Nome do EventoSimpósio Brasileiro de Geofísica Espacial e Aeronomia, 8 (SBGEA)
Localização do EventoOnline
Data22-26 mar.
Histórico (UTC)2021-03-25 12:17:20 :: simone -> administrator ::
2022-04-03 19:25:09 :: administrator -> simone :: 2021
3. Conteúdo e estrutura
É a matriz ou uma cópia?é a matriz
Estágio do Conteúdoconcluido
Transferível1
Tipo do ConteúdoExternal Contribution
ResumoThe source 1E 1740.7-2942 (1E), located near the Galactic Center, is an Xray binary whose compact object is classified as a black hole candidate due to its spectral similarities to Cygnus X-1. The hard X-ray spectra of 1E (20 < E < 200keV ) can be understood by the sombrero model, in which thermal photons from the accretion disk are comptonized in a hot electron corona. In this model, the X-ray spectra are well adjusted by a power-law, whose index, Gamma, is used to characterize the sources spectral state. Values in the literature for this index, however, are quoted over a wide range (e.g., between 1.2 and 2.5). In this work, we analyzed the public database of 1E from ISGRI telescope on-board the INTEGRAL satellite. Data were reduced to obtain spectra in the 20-200 keV range, as well as light curves in six different bands. We use the XSPEC environment to perform spectral analysis. Both these tasks (reduction and spectral analysis) were automated. The data allowed us to verify that 1E is mostly in the hard (canonical) state and is one of the most brilliant sources in the region where it is observed, corroborating previous results. We present a Gamma indexes distribution, which allow us to distinguish four spectral states for 1E in hard X-rays. In addition, it was possible to recover the degeneracy between kT and tau and, also, the correlation between the parameters E cut and kT. Another fundamental result was to conclude that, in 1E, the hot electron corona is most likely static and, therefore, the spectral states of the source are the consequence of the truncation of the disk radius, as canonically described by the sombrero model.
ÁreaCEA
Arranjo 1urlib.net > BDMCI > Fonds > Produção pgr ATUAIS > AST > Study and characterization...
Arranjo 2urlib.net > BDMCI > Fonds > Produção pgr ATUAIS > GES > Study and characterization...
Arranjo 3urlib.net > BDMCI > Fonds > Produção a partir de 2021 > CGCE > Study and characterization...
Conteúdo da Pasta docnão têm arquivos
Conteúdo da Pasta sourcenão têm arquivos
Conteúdo da Pasta agreement
agreement.html 25/03/2021 09:17 1.0 KiB 
4. Condições de acesso e uso
Idiomaen
Grupo de Usuáriossimone
Visibilidadeshown
Permissão de Atualizaçãonão transferida
5. Fontes relacionadas
Unidades Imediatamente Superiores8JMKD3MGPCW/3F2NE4L
8JMKD3MGPCW/3F2PBEE
8JMKD3MGPCW/46KTFK8
Acervo Hospedeirourlib.net/www/2017/11.22.19.04
6. Notas
Campos Vaziosarchivingpolicy archivist booktitle callnumber copyholder copyright creatorhistory descriptionlevel dissemination doi e-mailaddress edition editor format isbn issn keywords label lineage mark mirrorrepository nextedition notes numberoffiles numberofvolumes orcid organization pages parameterlist parentrepositories previousedition previouslowerunit progress project publisher publisheraddress readergroup readpermission resumeid rightsholder schedulinginformation secondarydate secondarymark serieseditor session shorttitle size sponsor subject targetfile tertiarymark tertiarytype type url versiontype volume
7. Controle da descrição
e-Mail (login)simone
atualizar 


Fechar