Nuestra privilegiada localización en la Vía Láctea (VL) nos permite estudiar con gran precisión una galaxia espiral típica desde dentro a través de sus poblaciones estelares. Una parte significativa de estas poblaciones estelares está concentrada en el disco de la VL. El disco se extiende por una amplia región del cielo e incluye el disco interior

El enfoque de esta tesis es el estudio de la Luz de Fondo Extragaláctica (EBL). La EBL es la luz acumulada proveniente de la formación y evolución de las galaxias, directamente o reprocesada por el polvo. Por esa razón, la EBL proporciona informaciones clave sobre la historia de las formaciones de las estrellas y galaxias, y es esencial para un

In this thesis, an extensive exploration of the low surface brightness Universe has been undertaken. A special emphasis has been placed on reducing the limitations arising from the use of integrated photometry, such as the residuals due to the observation and reduction of astronomical data, the effects of the point spread function and the presence

We have investigated the stellar and interstellar content of the distant star formation region IRAS 17591-2228 (WISE H II region GAL 007.47+0.06). It is associated with a water maser, whose parallax distance is $d={20.4}_{-2.2}^{+2.8}$ kpc, supported by independent measurements of proper motion and radial velocity. It is projected in the same

The National Science Foundation's Daniel K. Inouye Solar Telescope (DKIST) will revolutionize our ability to measure, understand, and model the basic physical processes that control the structure and dynamics of the Sun and its atmosphere. The first-light DKIST images, released publicly on 29 January 2020, only hint at the extraordinary

We present a search for RR Lyrae stars using the full six-year data set from the Dark Energy Survey covering ∼5000 deg 2 of the southern sky. Using a multistage multivariate classification and light-curve template-fitting scheme, we identify RR Lyrae candidates with a median of 35 observations per candidate. We detect 6971 RR Lyrae candidates out