Arasa Agudo, Raúl (Date of defense: 2011-07-20)
Durant les últimes dècades la quantitat de gasos i partícules contaminants que s’han injectat a l’atmosfera ha augmentat considerablement. Evidència d’aquesta informació són les elevades concentracions ...
Masqué Saumell, Josep Maria (Date of defense: 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 (Date of defense: 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 ...
Masana Fresno, Eduard (Date of defense: 2004-07-16)
En el entorno solar encontramos estrellas de características físicas muy diferentes, pertenecientes a dos de las componentes estelares que forman la Galaxia: el disco (delgado y grueso) y el halo. Los ...
Font Ribera, Andreu (Date of defense: 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 ...
Anglada Escudé, Guillem (Date of defense: 2007-09-25)
[spa] Gaia es un proyecto de la agencia espacial Europea (ESA) que pretende hacer un censo galáctico catalogando más de 1000 millones de objetos con una precisión astrometrica sin precedentes. La ...
Portabella Arnús, Marcos (Date of defense: 2002-11-18)
Wind observations are essential for determining the atmospheric flow. In particular, sea-surface wind observations are very useful for many meteorological and oceanographic applications. In this respect, ...
Mateu i Santaeulària, Mireia (Date of defense: 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 (Date of defense: 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 ...
Ossó Castillón, Albert (Date of defense: 2014-07-10)
In 1985 Joseph Farman and his colleagues of the British Antarctic Survey published a paper [Farman et al. 1985] showing that the total ozone content of the atmosphere during the Antarctic spring had ...