Mostrando ítems 1-10 de 37
Masqué Saumell, Josep Maria (Fecha de defensa: 2012-03-23)
The region GGD 27, located in Sagittarius at a distance of 1.7 kpc, is an active star forming region. The most well-known observational signature of this region, the HH 80/81/80N jet, is one of the ...
Busquet Rico, Gemma (Fecha de defensa: 2010-12-20)
[spa] Diversos estudios observacionales, principalmente de regiones de formación estelar de baja masa, muestran que el cociente NH3/N2H+ es bajo en núcleos asociados con objetos estelares jóvenes mientras ...
Font Ribera, Andreu (Fecha de defensa: 2011-09-30)
[cat] Gran part dels estudis presentats en aquesta tesi doctoral estan vinculats als esforços per detectar les oscil·lacions acústiques dels barions (BAO, de l’anglès Baryon Acoustic Oscillations) en ...
Mateu i Santaeulària, Mireia (Fecha de defensa: 2016-02-05)
In this work, a subsynoptic characterization of tropopause fold structures is derived from one-year of global, high resolution GFS (Global Forecasting System, 0.3 degrees) data analyses and 10 years of ...
Morales Peralta, Juan Carlos (Fecha de defensa: 2010-06-14)
The comparison between stellar structure models and observations of low-mass stars revealed that the stellar radii predicted by models for these stars are about 10% lower than observed, while effective ...
Frau Méndez, Pau (Fecha de defensa: 2012-06-12)
It is some observational evidence that dense cores are the birthplace of low-mass stars. These regions, apparently quiescent, are capable of surviving several free-fall times and, potentially, collapse ...
Baena Gallé, Roberto (Fecha de defensa: 2013-12-09)
Adaptive optics (AO) systems are used to increase the spatial resolution achieved by ground-based telescopes, which are limited by the atmospheric motion of air layers above them. Therefore, the real ...
Palau Puigvert, Aina (Fecha de defensa: 2006-07-20)
[spa] En este trabajo se han observado 4 regiones de formación estelar en modo de cúmulo a longitudes de onda milimétricas y submilimétricas con alta resolución angular (2''-4'') y alta sensibilidad. ...
Monguió i Montells, Maria (Fecha de defensa: 2013-11-22)
The main purpose of this thesis is to map the radial variation of the stellar density for the young stellar population in the Galactic anticenter direction in order to understand the structure and ...
Cabré Albós, Anna (Fecha de defensa: 2008-06-30)
The cosmic expansion history tests the dynamics of the global evolution of the universe<br/>and its energy density contents, while the cosmic growth history tests the evolution of the<br/>inhomogeneous ...