Aims: We aim to demonstrate that the Herschel-ATLAS (H-ATLAS) is suitable for a blind and unbiased survey for debris disks by identifying candidate debris disks associated with main sequence stars in the initial science demonstration field of the survey. We show that H-ATLAS reveals a population of far-infrared/sub-mm sources that are associated

We present an analysis of elemental abundances of He, N, O, Ne, S, and Ar in Magellanic Cloud planetary nebulae (PNe) and focus initially on 14 PNe in the Small Magellanic Cloud (SMC). We derive the abundances from a combination of deep, high-dispersion optical spectra, as well as mid-infrared (IR) spectra from the Spitzer Space Telescope. A

We collect information for 88 broad absorption line quasars (BALQSOs) from the literature and existing catalogues, creating the largest BALQSOs sample analyzed optically and X-ray to date. We performed a full X-ray spectral analysis with different models on the sample of 39 sources with higher number of counts, and an approximate hardness-ratio

Laboratory and on-sky experience suggests that the integration of big astronomical instruments, specially of a complex interferometric system, is a challenging process. LINC-NIRVANA is the Fizeau interferometric imager for the Large Binocular Telescope (LBT). Simulating the final operating environment of every system component has shown how

El centro de nuestra Vía Láctea, así como el de las galaxias más cercanas, constituye un excelente laboratorio para estudiar el entorno de agujeros negros supermasivos con una resolución espacial muy alta, del orden de unos pocos parsecs. Entender cómo funcionan estos objetos tan cercanos es el primer paso para identificar los mecanismos

En este trabajo, se desarrolla la metodología de dos procedimientos para la detección de planetas en sistemas binarios eclipsantes. Posteriormente, se aplican a observaciones realizadas por el satélite francés CoRoT (Convection, Rotation and planetary Transits). Este satélite cuenta con un telescopio de 27 cm con 2 CCD dedicadas a la búsqueda de