Evolution of stellar bars in disk galaxies is accompanied by dynamical instabilities and secular changes. Following the vertical buckling instability, the bars are known to weaken dramatically and develop a pronounced boxy/peanut shape when observed edge-on. Using high-resolution N-body simulations of stellar disks embedded in live axisymmetric

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Un tránsito de una exoplaneta ocurre cuando este se interpone entre el observador y la estrella en torno a la cual órbita. La disminución en el flujo de la estrella que provoca nos permite conocer ciertos parámetros orbitales y algunas características físicas del planeta que son inaccesibles mediante otras técnicas. LA diversidad de estudios

We have developed a new technique to decouple the spectra of the host and the nucleus of type I AGNs using integral field spectroscopy data. The technique is a simple extension of methods widely tested in 2D imaging. We present here the results from applying the technique to data taken with INTEGRAL at the 4.2 m William Herschel Telescope on the

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We investigate the star formation activity in galaxy pairs in chemical hydrodynamical simulations consistent with a Lambda-CDM scenario. A statistical analysis of the effects of galaxy interactions on the star formation activity as a function of orbital parameters shows that close encounters (r 30 kpc/h) can be effectively correlated with an