RSS 1.0Facultad de Ciencias
Collections in this community
Recent Submissions
-
Cadenas de Markov
(Universidad de Valparaíso, 2010) -
Presentaciones
(Universidad de Valparaíso, 2010) -
Whole-brain models and consciousness: a novel framework for a mechanistic understanding of different states of consciousness
(Universidad de Valparaíso, 2022-08)El alcance de la conciencia humana incluye estados que se alejan de lo que la mayoría de nosotros conocemos como vigilia ordinaria. Estos estados alterados de conciencia constituyen una excelente oportunidad para estudiar ... -
Magnetic fields in close white dwarf binaries
(Universidad de Valparaíso, 2020-09)White dwarfs are the degenerate remnants of stars that are born with initial masses 8 − 10 Mο (e.g., Smartt et al. 2009 [63], Cummings et al.2019 [16]). Whereas the possibility that some of these stellar remnants possess ... -
Formation of close binaries by triple dynamics in the context of supernovae la progenitors
(Universidad de Valparaíso, 2018-07)The unique capabilities of Type Ia Supernovae (SN Ia), with emission bright and uniform enough to serve as yardsticks on cosmological distance scales, has resulted in them becoming some of the most important objects in the ... -
Multiperiodicidad de superciclos en novas enanas del tipo SU UMa
(Universidad de Valparaíso, 2019-03)Los sistemas estelares binarios compuestos por una componente primaria (enana blanca) y otra secundaria (estrella de secuencia principal) que presentan transferencia de masa son las llamadas variables cataclísmicas (CV, ... -
Viscous radiation driven disks in fast rotating massive stars
(Universidad de Valparaíso, 2022-08)Previous studies of equatorial winds from high rotating massive stars, considered angular momentum conservation, have found a dependency between stellar rotation rate (Ω) and a new type of solution: the Ω-slow solution ... -
Estimación del efecto microlente cromático en los sistemas QSO2237+0305 y SDSS1226-0006
(Universidad de Valparaíso, 2022-04)El efecto lente gravitacional es una poderosa herramienta que permite estudiar la estructura interna de los núcleos activos de galaxias. Este proceso es posible de realizar debido a que estas fuentes lejanas son magnificadas, ... -
The origin of brown dwarfs
(Universidad de Valparaíso, 2019-09)In the present thesis we study the problem of the formation of brown dwarfs, objects whose masses are in the range between planets and stars. There are four main for- mation theories for these substellar objects: turbulent ... -
Searching for gas in debris disks
(Universidad de Valparaíso, 2020-04)A debris disk is commonly described as a second generation circumstellar disk com- posed of dust grains, planetesimals and possibly already formed giant planets. It was long thought that debris disks were systems fully ... -
Understanding the life of evolved stars using modern astronomical tools and techniques : case study of pulsating GW Vir, hot subdwarf B stars and their progenitors
(Universidad de Valparaíso, 2022-08)With the advance of high precision and high duty cycle photometric monitoring from the Transiting Exoplanet Survey Satellite (TESS) mission, unprecedented asteroseismic measurements and tools have become available for ... -
Strong gravitational lensing as a probe of structure from small to large scale
(Universidad de Valparaíso, 2018-07)The gravitational lens effect occurs when the light is deflected by a gravitational field, generating multiple images or arcs. This powerful technique allows us to study structures at different scales in the universe ... -
Dynamical stellar masses via high angular resolution techniques
(Universidad de Valparaíso, 2021)Multiple stellar systems are abundant in our galaxy. Almost half of solar-like field stars have at least one companion. Multiple systems are the perfect playground to de- termine the stellar mass, which the one of the ... -
The growth of supremassive black holes in galaxies: co-evolution and rgulation of the star formation activity
(Universidad de Valparaíso, 2021)In this Thesis we study how the accretion of the central supermassive black hole evolves in galaxies in all their star formation life phases and through a wide range of cosmic epochs. We take two complementary approaches. ... -
Probing the source structure in lensed AGNs
(Universidad de Valparaíso, 2022-04)Accurate determination of supermassive black hole masses are crucial to correctly understand the connection between supermassive black holes and their host galaxies, specially with the correlation that exists between ... -
The properties of post-novae
(Universidad de Valparaíso, 2022-03)The impact of nova eruptions on the long-term evolution of Cataclysmic Variables (CVs) is one of the least understood and intensively discussed topics in the field. A decisive ingredient to improve this would be to establish ... -
Demystifying the powering mechanism of low-luminosity active galactic nuclei
(Universidad de Valparaíso, 2022-08)Despite the long history of studies of active galactic nuclei (AGN), details on the structure of the accretion mechanism are far from clear. The work presented in this thesis is directed at unveiling properties of the ... -
Obstáculos presentes en los libros respecto de la enseñanza de la función lineal y su gráfica en los niveles NB6, NM1 y NM2
(Universidad de Valparaíso, 2010) -
Principales dificultades y estrategias de visualización matemática, relacionadas con gráficas lineales y cuadráticas
(Universidad de Valparaíso, 2010) -
Algunos aspectos asociados a una singularidad silla-foco: el 1-ciclo de Silnikov
(Universidad de Valparaíso, 2011-01)