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

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...

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Principais autores: Carvalho, J.C., Soares, B. B., Martins, Bruno Leonardo Canto, Nascimento Júnior, José Dias do, Recio-Blanco, A., Medeiros, José Renan de
Formato: article
Idioma:English
Publicado em: Elsevier Inc.
Assuntos:
Stars: rotation
Distribution
Main sequence
Open cluster
Endereço do item:https://repositorio.ufrn.br/jspui/handle/123456789/29009
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spelling ri-123456789-290092020-06-03T14:30:13Z Radial velocities of open stellar clusters: a new solid constraint favouring Tsallis maximum entropy theory Carvalho, J.C. Soares, B. B. Martins, Bruno Leonardo Canto Nascimento Júnior, José Dias do Recio-Blanco, A. Medeiros, José Renan de Stars: rotation Distribution Main sequence Open cluster 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 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 2020-05-19T18:09:52Z 2020-05-19T18:09:52Z 2007-10-15 article 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 https://repositorio.ufrn.br/jspui/handle/123456789/29009 10.1016/j.physa.2007.05.045 en application/pdf Elsevier Inc.
institution Repositório Institucional
collection RI - UFRN
language English
topic Stars: rotation
Distribution
Main sequence
Open cluster
spellingShingle Stars: rotation
Distribution
Main sequence
Open cluster
Carvalho, J.C.
Soares, B. B.
Martins, Bruno Leonardo Canto
Nascimento Júnior, José Dias do
Recio-Blanco, A.
Medeiros, José Renan de
Radial velocities of open stellar clusters: a new solid constraint favouring Tsallis maximum entropy theory
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
format article
author Carvalho, J.C.
Soares, B. B.
Martins, Bruno Leonardo Canto
Nascimento Júnior, José Dias do
Recio-Blanco, A.
Medeiros, José Renan de
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_sort Carvalho, J.C.
title Radial velocities of open stellar clusters: a new solid constraint favouring Tsallis maximum entropy theory
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
publisher Elsevier Inc.
publishDate 2020
url https://repositorio.ufrn.br/jspui/handle/123456789/29009
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AT martinsbrunoleonardocanto radialvelocitiesofopenstellarclustersanewsolidconstraintfavouringtsallismaximumentropytheory
AT nascimentojuniorjosediasdo radialvelocitiesofopenstellarclustersanewsolidconstraintfavouringtsallismaximumentropytheory
AT recioblancoa radialvelocitiesofopenstellarclustersanewsolidconstraintfavouringtsallismaximumentropytheory
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