Reconstrucción de los perfiles de masa en galaxias de disco con base en sus propiedades de lente gravitacional y curvas de rotación

dc.contributor.advisorCastañeda Colorado, Leonardospa
dc.contributor.authorLópez Trilleras, Itamar Alfonsospa
dc.contributor.researchgroupGrupo de Astronomía Galáctica, Gravitación y Cosmologíaspa
dc.date.accessioned2020-10-08T21:34:48Zspa
dc.date.available2020-10-08T21:34:48Zspa
dc.date.issued2020-06-08spa
dc.description.abstractEn este trabajo se presentan dos métodos de reconstrucción de los perfiles de masa en galaxias de disco, el primero de ellos se realiza mediante el ajuste de la curva de rotación con base en los datos de velocidad circular que se obtienen observacionalmente en un sistema de estrellas, mientras que el segundo método se enfoca en el Efecto de Lente Gravitacional(ELG). Para las reconstrucciones de masa mencionadas, se utilizaron dos rutinas desarrolladas en el lenguaje de programación python: una de ellas es Galrotpy, la cual fue creada por integrantes del grupo de Galaxias, Gravitación y Cosmología del Observatorio Astronómico Nacional de la Universidad Nacional de Colombia 5 y cuya funcionalidad se aplica a las curvas de rotación, la otra rutina se denomina Gallenspy y fue creada en el desarrollo de este trabajo para lo concerciente al ELG. Cabe resaltar que ambas rutinas realizan una obtención de parámetros desde la aplicación de la estadística bayesiana, lo cual permite obtener las incertidumbres de los valores estimados. Finalmente, en el capítulo 5 se muestra la potencialidad de combinar dinámica galáctica y ELG, donde con el uso de los códigos mencionados anteriormente se reconstruyeron los perfiles de masa de las galaxias SDSSJ2141-001 y SDSSJ1331+3628 y se realiza la comparación con los resultados obtenidos por otros autores respecto a estos dos sistemas.spa
dc.description.abstractTwo methods for mass profiles reconstruction in disc-like galaxies are presented in this work, the first is done with the fit of the rotation curve based on the dates of circular velocity which are obtained observationally in a stars system, while the other method is focused on the gravitational lensed effect (ELG). For these mass reconstructions, two routines developed in the language of programming python were used: one of them is Galrotpy, which was built by members of the Galaxies, Gravitation and Cosmology group from the Observatorio Astronómico Nacional of the Universidad Nacional de Colombia 5 and whose funtionality is applied in the rotation curves, the other routine is Gallenspy which was created in the development of this work and it is focoused in the ELG. It should be noted that both routines perform a parameters estimation from the Bayesian statistics, which allows us to obtain the uncertainties of the estimated valors. Finally in the chapter 5 the great power of combining galactic dynamics and ELG is shown, for this purpose the mass profiles of the galaxies SDSSJ2141-001 and SDSSJ1331+3628 were reconstructed with Galrotpy and Gallenspy and the results obtained are compared with those reported by other authors with respect to these systems.spa
dc.description.degreelevelMaestríaspa
dc.format.extent125spa
dc.format.mimetypeapplication/pdfspa
dc.identifier.urihttps://repositorio.unal.edu.co/handle/unal/78533
dc.language.isospaspa
dc.publisher.branchUniversidad Nacional de Colombia - Sede Bogotáspa
dc.publisher.programBogotá - Ciencias - Maestría en Ciencias - Astronomíaspa
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dc.rightsDerechos reservados - Universidad Nacional de Colombiaspa
dc.rights.accessrightsinfo:eu-repo/semantics/openAccessspa
dc.rights.licenseReconocimiento 4.0 Internacionalspa
dc.rights.spaAcceso abiertospa
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/spa
dc.subject.ddc520 - Astronomía y ciencias afinesspa
dc.subject.proposalEfecto de lente gravitacionalspa
dc.subject.proposalGravitational lensed effecteng
dc.subject.proposalEefecto de lente fuertespa
dc.subject.proposalStrong lensingeng
dc.subject.proposalCurvas de rotaciónspa
dc.subject.proposalRotation curveseng
dc.subject.proposalMontecarlo Markov chainseng
dc.subject.proposalCadenas de Markov Montecarlospa
dc.subject.proposalDinámica galácticaspa
dc.subject.proposalGalactic dynamicseng
dc.subject.proposalMass reconstructioneng
dc.subject.proposalReconstrucción de masaspa
dc.subject.proposalMass profileseng
dc.subject.proposalPerfiles de masaspa
dc.subject.proposalGalrotpyeng
dc.subject.proposalGalrotpyspa
dc.subject.proposalGallenspyspa
dc.subject.proposalGallenspyeng
dc.titleReconstrucción de los perfiles de masa en galaxias de disco con base en sus propiedades de lente gravitacional y curvas de rotaciónspa
dc.title.alternativeReconstruction of mass profiles in disc-like galaxies based on its properties of lensing and rotational curvesspa
dc.typeTrabajo de grado - Maestríaspa
dc.type.coarhttp://purl.org/coar/resource_type/c_bdccspa
dc.type.coarversionhttp://purl.org/coar/version/c_ab4af688f83e57aaspa
dc.type.contentTextspa
dc.type.driverinfo:eu-repo/semantics/masterThesisspa
dc.type.versioninfo:eu-repo/semantics/acceptedVersionspa
oaire.accessrightshttp://purl.org/coar/access_right/c_abf2spa

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