Radial velocities of open stellar clusters: a new solid constraint favouring Tsallis maximum entropy theory
Autor(a) principal: | |
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Data de Publicação: | 2007 |
Outros Autores: | , , , , |
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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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 |
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eng |
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eng |
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info:eu-repo/semantics/openAccess |
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openAccess |
dc.publisher.none.fl_str_mv |
Elsevier Inc. |
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Elsevier Inc. |
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