Výsledky vyhledávání - "Dinàmica estel·lar"

New contributions to algorithms and tools for the analysis of photometric and spectroscopic time-series in exoplanet searches

Autor: Rosich Salgado, Albert

Publikováno v: Dipòsit Digital de la UB
Universidad de Barcelona
TDX (Tesis Doctorals en Xarxa)
TDR. Tesis Doctorales en Red
instname

[eng] The current trend in exoplanet research focuses on the detection and characterisation of Earth-sized planets, and the study of their potential subtle and tenuous atmospheres. The aim of this thesis is the development of tools and simulation cod

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::4b422d018568732e1be8378f6ec9187f
http://hdl.handle.net/10803/674263

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Pseudo-heteroclinic connections between bicircular restricted four-body problems

Autor: Esther Barrabés, Gerard Gómez, Josep Maria Mondelo, Mercè Ollé

Publikováno v: Recercat. Dipósit de la Recerca de Catalunya
instname
© Monthly Notices of the Royal Astronomical Society, 2016, núm. 462, p. 740-750
Articles publicats (D-IMA)
DUGiDocs – Universitat de Girona
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Recercat: Dipósit de la Recerca de Catalunya
Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Dipòsit Digital de Documents de la UAB
Universitat Autònoma de Barcelona
Dipòsit Digital de la UB
Universidad de Barcelona

In this paper, we show a mechanism to explain transport from the outer to the inner Solar system. Such a mechanism is based on dynamical systems theory. More concretely, we consider a sequence of uncoupled bicircular restricted four-body problems –

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::319355b49c4c32f2d92ac7a8870d5736
http://hdl.handle.net/2072/439601

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Blue extreme disk-runaway stars with Gaia EDR3

Autor: Roberto Raddi, Markus Dimpel, Andreas Irrgang, Ulrich Heber

Publikováno v: UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

Since the discovery of hypervelocity stars in 2005, it has been widely believed that only the disruption of a binary system by a supermassive black hole at the Galactic center (GC), that is, the so-called Hills mechanism, is capable of accelerating s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8bac7fabac4ac26e02a485414cafa7f2
http://hdl.handle.net/2117/352836

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Substructure in the phase-space of the Galaxy with Gaia

Autor: Ramos, Pau

Publikováno v: Dipòsit Digital de la UB
Universidad de Barcelona
TDX (Tesis Doctorals en Xarxa)
TDR: Tesis Doctorales en Red
CBUC, CESCA
TDR. Tesis Doctorales en Red
instname

[eng] The Gaia mission and its extensive catalogue of stars has marked the beginning of the Golden Age of Galactic dynamics. We have now access to the kinematics of more than a billion stars with which we can start deciphering the history of our Gala

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::2ffb267340b565de68fb9b663b899bc9
http://hdl.handle.net/10803/670916

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Simulaciones de n-cuerpos en sistemas no colisionales

Autor: Sanchis Bernabeu, Francisco Javier

Publikováno v: O2, repositorio institucional de la UOC
Universitat Oberta de Catalunya (UOC)

The main goal of this Final Master's Thesis is the introduction of the Simulation of N-Body Collisionless Systems focusing on three aspects. Firstly defining what the essential parameters to describe the evolution of a system are. Secondly, explainin

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::bcf808c4ef2f0c4dbdbb54cd56804b88
http://hdl.handle.net/10609/119647

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The role of bulges in the motion of stars in disks

Autor: Mora Gil, Pau

Publikováno v: Dipòsit Digital de la UB
Universidad de Barcelona

Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2020, Tutor: Alberto Manrique Oliva
Using a modern galactic model that takes into account a dark matter halo, a spherical bulge and a disk, we study the nat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::e82f5a934a2db7c50ba15d3b68c6496c
http://hdl.handle.net/2445/176698

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Spatial collinear restricted four-body problem with repulsive Manev potential

Autor: Josep M. Cors, Esther Barrabés, Claudio Vidal

Publikováno v: Recercat. Dipósit de la Recerca de Catalunya
instname
Barrabés Vera, Esther Cors i Iglesias, Josep M. Vidal, Claudio 2017 Spatial collinear restricted four-body problem with repulsive Manev potential Celestial Mechanics & Dynamical Astronomy 129 1-2 153 176
© Celestial Mechanics & Dynamical Astronomy, 2017, vol. 129, núm. 1-2, p. 153-176
Articles publicats (D-IMAE)
DUGiDocs – Universitat de Girona
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)

We outline some aspects of the dynamics of an infinitesimal mass under the Newtonian attraction of three point masses in a symmetric collinear relative equilibria configuration when a repulsive Manev potential ( $$-1/r +e/r^{2}$$ ), $$e>0$$ , is appl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::97f5722cb4fa3c0de847f3787ee8850d
https://doi.org/10.1007/s10569-017-9771-y

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The role of dark matter halos in the motion of stars in galaxies

Autor: Barrera Bardalet, Jordi de la

Publikováno v: Dipòsit Digital de la UB
Universidad de Barcelona

Treballs Finals de Grau de Física, Facultat de Física, Universitat de Barcelona, Curs: 2019, Tutor: Alberto Manrique Oliva
In this paper, we study the effects produced by a dark matter halo on the regular or chaotic nature of the orbits of a s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::c6cad23700c3c241b6354aff34789659
http://hdl.handle.net/2445/139979

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Electromagnetic emission of white dwarf binary mergers

Autor: Remo Ruffini, Jorge A. Rueda, M. Karlica, Carlo Luciano Bianco, Rahim Moradi, Pablo Lorén-Aguilar, Narek Sahakyan, J. M. Blanco-Iglesias, Y. Wang

Publikováno v: JCAP
JCAP, 2019, 03, pp.044. ⟨10.1088/1475-7516/2019/03/044⟩

It has been recently proposed that the ejected matter from white dwarf (WD) binary mergers can produce transient, optical and infrared emission similar to the "kilonovae" of neutron star (NS) binary mergers. To confirm this we calculate the electroma

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::58bbcba51b31dfb65a040c81d0e9307a
https://hal.archives-ouvertes.fr/hal-01871859

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From Manifolds to Lagrangian Coherent Structures in galactic bar models

Autor: M. Romero-Gómez, Josep J. Masdemont, Patricia Sánchez-Martín

Publikováno v: Recercat. Dipósit de la Recerca de Catalunya
instname
UPCommons. Portal del coneixement obert de la UPC
Universitat Politècnica de Catalunya (UPC)
Dipòsit Digital de la UB
Universidad de Barcelona

We study the dynamics near the unstable Lagrangian points in galactic bar models using dynamical system tools in order to determine the global morphology of a barred galaxy. We aim at the case of non-autonomous models, in particular with secular evol

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a16acf2b39b202f6c5a004a1c9b4e2d6

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