Radial velocities of open stellar clusters: a new solid constraint favouring Tsallis maximum entropy theory

Detalhes bibliográficos
Autor(a) principal: Carvalho, J.C.
Data de Publicação: 2007
Outros Autores: Soares, B. B., Martins, Bruno Leonardo Canto, Nascimento Júnior, José Dias do, Recio-Blanco, A., Medeiros, José Renan de
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRN
Texto Completo: https://repositorio.ufrn.br/jspui/handle/123456789/29009
Resumo: In the present study we apply a Tsallis maximum entropy distribution law to the study of the stellar residual radial velocity in a sample of 13 stellar open clusters. From a comparison between results obtained from the analysis based on Tsallis law and on the one based on the Maxwellian law we show that the generalized Tsallis distribution fits more closely the observed distribution of the stellar residual radial velocities for these stellar clusters. We have found clear evidences that the q-parameter in the Tsallis generalized distribution depends on stellar cluster ages for clusters older than 10. There is also some indication that q increases with cluster galactocentric distance. The results obtained in this work represent an additional solid constraint in the stellar astrophysics favoring the Tsallis maximum entropy theory
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spelling Carvalho, J.C.Soares, B. B.Martins, Bruno Leonardo CantoNascimento Júnior, José Dias doRecio-Blanco, A.Medeiros, José Renan de2020-05-19T18:09:52Z2020-05-19T18:09:52Z2007-10-15CARVALHO, J.c.; SOARES, B.B.; MARTINS, B.l. Canto; NASCIMENTO, J.d. do; RECIO-BLANCO, A.; MEDEIROS, J.r. de. Radial velocities of open stellar clusters: a new solid constraint favouring tsallis maximum entropy theory. : A new solid constraint favouring Tsallis maximum entropy theory. Physica A: Statistical Mechanics and its Applications, [s.l.], v. 384, n. 2, p. 507-515, out. 2007. Disponível em: http://dx.doi.org/10.1016/j.physa.2007.05.045. Acesso em: 12 mai. 2020.1678-765Xhttps://repositorio.ufrn.br/jspui/handle/123456789/2900910.1016/j.physa.2007.05.045In the present study we apply a Tsallis maximum entropy distribution law to the study of the stellar residual radial velocity in a sample of 13 stellar open clusters. From a comparison between results obtained from the analysis based on Tsallis law and on the one based on the Maxwellian law we show that the generalized Tsallis distribution fits more closely the observed distribution of the stellar residual radial velocities for these stellar clusters. We have found clear evidences that the q-parameter in the Tsallis generalized distribution depends on stellar cluster ages for clusters older than 10. There is also some indication that q increases with cluster galactocentric distance. The results obtained in this work represent an additional solid constraint in the stellar astrophysics favoring the Tsallis maximum entropy theoryIn the present study we apply a Tsallis maximum entropy distribution law to the study of the stellar residual radial velocity in a sample of 13 stellar open clusters. From a comparison between results obtained from the analysis based on Tsallis law and on the one based on the Maxwellian law we show that the generalized Tsallis distribution fits more closely the observed distribution of the stellar residual radial velocities for these stellar clusters. We have found clear evidences that the q-parameter in the Tsallis generalized distribution depends on stellar cluster ages for clusters older than 10. There is also some indication that q increases with cluster galactocentric distance. The results obtained in this work represent an additional solid constraint in the stellar astrophysics favoring the Tsallis maximum entropy theoryElsevier Inc.Stars: rotationDistributionMain sequenceOpen clusterRadial velocities of open stellar clusters: a new solid constraint favouring Tsallis maximum entropy theoryinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleengreponame:Repositório Institucional da UFRNinstname:Universidade Federal do Rio Grande do Norte (UFRN)instacron:UFRNinfo:eu-repo/semantics/openAccessORIGINALRadialVelocitiesOfOpenStellarClusters_2007.pdfRadialVelocitiesOfOpenStellarClusters_2007.pdfArtigoapplication/pdf204206https://repositorio.ufrn.br/bitstream/123456789/29009/1/RadialVelocitiesOfOpenStellarClusters_2007.pdfa8c511697edf095a5bf7751111145d53MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81484https://repositorio.ufrn.br/bitstream/123456789/29009/2/license.txte9597aa2854d128fd968be5edc8a28d9MD52TEXTRadialVelocitiesOfOpenStellarClusters_2007.pdf.txtRadialVelocitiesOfOpenStellarClusters_2007.pdf.txtExtracted texttext/plain22689https://repositorio.ufrn.br/bitstream/123456789/29009/3/RadialVelocitiesOfOpenStellarClusters_2007.pdf.txt805d65c1351dd0571c3e3415450beddaMD53THUMBNAILRadialVelocitiesOfOpenStellarClusters_2007.pdf.jpgRadialVelocitiesOfOpenStellarClusters_2007.pdf.jpgGenerated Thumbnailimage/jpeg1742https://repositorio.ufrn.br/bitstream/123456789/29009/4/RadialVelocitiesOfOpenStellarClusters_2007.pdf.jpg6d69a84d392b1c35aab8ce793fe52c52MD54123456789/290092020-06-03 11:30:13.35oai:https://repositorio.ufrn.br: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Repositório de PublicaçõesPUBhttp://repositorio.ufrn.br/oai/opendoar:2020-06-03T14:30:13Repositório Institucional da UFRN - Universidade Federal do Rio Grande do Norte (UFRN)false
dc.title.pt_BR.fl_str_mv Radial velocities of open stellar clusters: a new solid constraint favouring Tsallis maximum entropy theory
title Radial velocities of open stellar clusters: a new solid constraint favouring Tsallis maximum entropy theory
spellingShingle Radial velocities of open stellar clusters: a new solid constraint favouring Tsallis maximum entropy theory
Carvalho, J.C.
Stars: rotation
Distribution
Main sequence
Open cluster
title_short Radial velocities of open stellar clusters: a new solid constraint favouring Tsallis maximum entropy theory
title_full Radial velocities of open stellar clusters: a new solid constraint favouring Tsallis maximum entropy theory
title_fullStr Radial velocities of open stellar clusters: a new solid constraint favouring Tsallis maximum entropy theory
title_full_unstemmed Radial velocities of open stellar clusters: a new solid constraint favouring Tsallis maximum entropy theory
title_sort Radial velocities of open stellar clusters: a new solid constraint favouring Tsallis maximum entropy theory
author Carvalho, J.C.
author_facet Carvalho, J.C.
Soares, B. B.
Martins, Bruno Leonardo Canto
Nascimento Júnior, José Dias do
Recio-Blanco, A.
Medeiros, José Renan de
author_role author
author2 Soares, B. B.
Martins, Bruno Leonardo Canto
Nascimento Júnior, José Dias do
Recio-Blanco, A.
Medeiros, José Renan de
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Carvalho, J.C.
Soares, B. B.
Martins, Bruno Leonardo Canto
Nascimento Júnior, José Dias do
Recio-Blanco, A.
Medeiros, José Renan de
dc.subject.por.fl_str_mv Stars: rotation
Distribution
Main sequence
Open cluster
topic Stars: rotation
Distribution
Main sequence
Open cluster
description In the present study we apply a Tsallis maximum entropy distribution law to the study of the stellar residual radial velocity in a sample of 13 stellar open clusters. From a comparison between results obtained from the analysis based on Tsallis law and on the one based on the Maxwellian law we show that the generalized Tsallis distribution fits more closely the observed distribution of the stellar residual radial velocities for these stellar clusters. We have found clear evidences that the q-parameter in the Tsallis generalized distribution depends on stellar cluster ages for clusters older than 10. There is also some indication that q increases with cluster galactocentric distance. The results obtained in this work represent an additional solid constraint in the stellar astrophysics favoring the Tsallis maximum entropy theory
publishDate 2007
dc.date.issued.fl_str_mv 2007-10-15
dc.date.accessioned.fl_str_mv 2020-05-19T18:09:52Z
dc.date.available.fl_str_mv 2020-05-19T18:09:52Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.citation.fl_str_mv CARVALHO, J.c.; SOARES, B.B.; MARTINS, B.l. Canto; NASCIMENTO, J.d. do; RECIO-BLANCO, A.; MEDEIROS, J.r. de. Radial velocities of open stellar clusters: a new solid constraint favouring tsallis maximum entropy theory. : A new solid constraint favouring Tsallis maximum entropy theory. Physica A: Statistical Mechanics and its Applications, [s.l.], v. 384, n. 2, p. 507-515, out. 2007. Disponível em: http://dx.doi.org/10.1016/j.physa.2007.05.045. Acesso em: 12 mai. 2020.
dc.identifier.uri.fl_str_mv https://repositorio.ufrn.br/jspui/handle/123456789/29009
dc.identifier.issn.none.fl_str_mv 1678-765X
dc.identifier.doi.none.fl_str_mv 10.1016/j.physa.2007.05.045
identifier_str_mv CARVALHO, J.c.; SOARES, B.B.; MARTINS, B.l. Canto; NASCIMENTO, J.d. do; RECIO-BLANCO, A.; MEDEIROS, J.r. de. Radial velocities of open stellar clusters: a new solid constraint favouring tsallis maximum entropy theory. : A new solid constraint favouring Tsallis maximum entropy theory. Physica A: Statistical Mechanics and its Applications, [s.l.], v. 384, n. 2, p. 507-515, out. 2007. Disponível em: http://dx.doi.org/10.1016/j.physa.2007.05.045. Acesso em: 12 mai. 2020.
1678-765X
10.1016/j.physa.2007.05.045
url https://repositorio.ufrn.br/jspui/handle/123456789/29009
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier Inc.
publisher.none.fl_str_mv Elsevier Inc.
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFRN
instname:Universidade Federal do Rio Grande do Norte (UFRN)
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institution UFRN
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