Structure and Kinematics of the Milky Way through A stars

Màster Oficial d'Astrofísica, Física de Partícules i Cosmologia, Facultat de Física, Universitat de Barcelona. Curs: 2021-2022. Tutora: Maria Monguió Montells

Detalles Bibliográficos
Autor: Ardèvol Guillamón, Judith
Tipo de recurso: tesis de maestría
Fecha de publicación:2022
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/202231
Acceso en línea:https://hdl.handle.net/2445/202231
Access Level:acceso abierto
Palabra clave:Via Làctia
Evolució de les galàxies
Estels
Treballs de fi de màster
Milky Way
Galaxies evolution
Stars
Master's thesis
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spelling Structure and Kinematics of the Milky Way through A starsArdèvol Guillamón, JudithVia LàctiaEvolució de les galàxiesEstelsTreballs de fi de màsterMilky WayGalaxies evolutionStarsMaster's thesisMàster Oficial d'Astrofísica, Física de Partícules i Cosmologia, Facultat de Física, Universitat de Barcelona. Curs: 2021-2022. Tutora: Maria Monguió MontellsIn the context of the Gaia era, the analysis of the structure and the kinematics of the Milky Way is an ongoing active field of research. Despite A-type stars have a relatively high intrinsic brightness and are moderately numerous as well as kinetically cold, they have been scarcely used as tracers of Galactic properties. This work opens a new window by studying a sample of A-type stars selected using the IGAPS photometric survey. It covers the Galactic plane within 30 ° ≤ l ≤ 215 ° and |b| ≤ 5 ° up to magnitude r ≤ 19 mag with around 3.5 million sources. Gaia EDR3 astrometry and proper motions, together with Gaia DR3 line-of-sight velocities, are used to analyse large-scale features of the Galactic disc. This sample allows to unveil structure and kinematic properties of the Milky Way disc at inter-mediate stellar ages. This includes a study of the obtained density distributions completeness, and a comparison between the b < 0° and b > 0° regions. Furthermore, the sample shows clear evidences of the Galactic warp in its vertical kinematics. Possible biases caused by interstellar extinction or by the usage of some kinematic estimators are examined to verify the results. The last goal of this study is to demonstrate the high potential of A-type stars as Galactic-scale tracers. They can be used to fill the age gap between the youngest OB stars and the old red giants, allowing to expand our knowledge about the evolution of the Galaxy.Monguió i Montells, Maria2022info:eu-repo/semantics/masterThesisapplication/pdfhttps://hdl.handle.net/2445/202231Màster Oficial - Astrofísica, Física de Partícules i Cosmologiareponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaIngléscc-by-nc-nd (c) Ardèvol, 2022http://creativecommons.org/licenses/by-nc-nd/3.0/es/info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/2022312026-05-27T06:46:51Z
dc.title.none.fl_str_mv Structure and Kinematics of the Milky Way through A stars
title Structure and Kinematics of the Milky Way through A stars
spellingShingle Structure and Kinematics of the Milky Way through A stars
Ardèvol Guillamón, Judith
Via Làctia
Evolució de les galàxies
Estels
Treballs de fi de màster
Milky Way
Galaxies evolution
Stars
Master's thesis
title_short Structure and Kinematics of the Milky Way through A stars
title_full Structure and Kinematics of the Milky Way through A stars
title_fullStr Structure and Kinematics of the Milky Way through A stars
title_full_unstemmed Structure and Kinematics of the Milky Way through A stars
title_sort Structure and Kinematics of the Milky Way through A stars
dc.creator.none.fl_str_mv Ardèvol Guillamón, Judith
author Ardèvol Guillamón, Judith
author_facet Ardèvol Guillamón, Judith
author_role author
dc.contributor.none.fl_str_mv Monguió i Montells, Maria
dc.subject.none.fl_str_mv Via Làctia
Evolució de les galàxies
Estels
Treballs de fi de màster
Milky Way
Galaxies evolution
Stars
Master's thesis
topic Via Làctia
Evolució de les galàxies
Estels
Treballs de fi de màster
Milky Way
Galaxies evolution
Stars
Master's thesis
description Màster Oficial d'Astrofísica, Física de Partícules i Cosmologia, Facultat de Física, Universitat de Barcelona. Curs: 2021-2022. Tutora: Maria Monguió Montells
publishDate 2022
dc.date.none.fl_str_mv 2022
dc.type.none.fl_str_mv info:eu-repo/semantics/masterThesis
format masterThesis
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/202231
url https://hdl.handle.net/2445/202231
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv cc-by-nc-nd (c) Ardèvol, 2022
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by-nc-nd (c) Ardèvol, 2022
http://creativecommons.org/licenses/by-nc-nd/3.0/es/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.source.none.fl_str_mv Màster Oficial - Astrofísica, Física de Partícules i Cosmologia
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.301603

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