The distance to the Galactic center determined by G, K, and M stars

Autores
Branham, Richard Lacy
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The distance from the Sun to the center of the Galaxy R0 remains a fundamental parameter for Galactic structure. This study uses 105,275 G, K, and M stars of all luminosity classes with position, parallax, and proper motion taken from the Hipparcos catalog and radial velocities from the Wilson and Strasbourg Data Center catalogs. The nonlinear kinematical equations of condition are solved by the Nelder-Mead simplex algorithm and give R0=7.64±0.09kpc. At a confidence level of 90 % one can assert the randomness of the residuals and shows that the kinematical model yields satisfactory results.
Fil: Branham, Richard Lacy. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
Materia
Galaxy: Dynamics And Kinematics
Methods: Data Analysis
Numerical
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/63461
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/63461
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling The distance to the Galactic center determined by G, K, and M starsBranham, Richard LacyGalaxy: Dynamics And KinematicsMethods: Data AnalysisNumericalhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1The distance from the Sun to the center of the Galaxy R0 remains a fundamental parameter for Galactic structure. This study uses 105,275 G, K, and M stars of all luminosity classes with position, parallax, and proper motion taken from the Hipparcos catalog and radial velocities from the Wilson and Strasbourg Data Center catalogs. The nonlinear kinematical equations of condition are solved by the Nelder-Mead simplex algorithm and give R0=7.64±0.09kpc. At a confidence level of 90 % one can assert the randomness of the residuals and shows that the kinematical model yields satisfactory results.Fil: Branham, Richard Lacy. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; ArgentinaSpringer2017-02info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/63461Branham, Richard Lacy; The distance to the Galactic center determined by G, K, and M stars; Springer; Astrophysics And Space Science; 362; 2; 2-2017; 1-60004-640XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1007/s10509-017-3015-1info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs10509-017-3015-1info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:36:25Zoai:ri.conicet.gov.ar:11336/63461instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:36:25.689CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The distance to the Galactic center determined by G, K, and M stars
title The distance to the Galactic center determined by G, K, and M stars
spellingShingle The distance to the Galactic center determined by G, K, and M stars
Branham, Richard Lacy
Galaxy: Dynamics And Kinematics
Methods: Data Analysis
Numerical
title_short The distance to the Galactic center determined by G, K, and M stars
title_full The distance to the Galactic center determined by G, K, and M stars
title_fullStr The distance to the Galactic center determined by G, K, and M stars
title_full_unstemmed The distance to the Galactic center determined by G, K, and M stars
title_sort The distance to the Galactic center determined by G, K, and M stars
dc.creator.none.fl_str_mv Branham, Richard Lacy
author Branham, Richard Lacy
author_facet Branham, Richard Lacy
author_role author
dc.subject.none.fl_str_mv Galaxy: Dynamics And Kinematics
Methods: Data Analysis
Numerical
topic Galaxy: Dynamics And Kinematics
Methods: Data Analysis
Numerical
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The distance from the Sun to the center of the Galaxy R0 remains a fundamental parameter for Galactic structure. This study uses 105,275 G, K, and M stars of all luminosity classes with position, parallax, and proper motion taken from the Hipparcos catalog and radial velocities from the Wilson and Strasbourg Data Center catalogs. The nonlinear kinematical equations of condition are solved by the Nelder-Mead simplex algorithm and give R0=7.64±0.09kpc. At a confidence level of 90 % one can assert the randomness of the residuals and shows that the kinematical model yields satisfactory results.
Fil: Branham, Richard Lacy. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
description The distance from the Sun to the center of the Galaxy R0 remains a fundamental parameter for Galactic structure. This study uses 105,275 G, K, and M stars of all luminosity classes with position, parallax, and proper motion taken from the Hipparcos catalog and radial velocities from the Wilson and Strasbourg Data Center catalogs. The nonlinear kinematical equations of condition are solved by the Nelder-Mead simplex algorithm and give R0=7.64±0.09kpc. At a confidence level of 90 % one can assert the randomness of the residuals and shows that the kinematical model yields satisfactory results.
publishDate 2017
dc.date.none.fl_str_mv 2017-02
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/63461
Branham, Richard Lacy; The distance to the Galactic center determined by G, K, and M stars; Springer; Astrophysics And Space Science; 362; 2; 2-2017; 1-6
0004-640X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/63461
identifier_str_mv Branham, Richard Lacy; The distance to the Galactic center determined by G, K, and M stars; Springer; Astrophysics And Space Science; 362; 2; 2-2017; 1-6
0004-640X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1007/s10509-017-3015-1
info:eu-repo/semantics/altIdentifier/url/https://link.springer.com/article/10.1007%2Fs10509-017-3015-1
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Springer
publisher.none.fl_str_mv Springer
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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