There are many oscillatory phenomena in the Sun which show up from the deepest interior layers to the outermost layers of its atmosphere. The study of these...
Spiral-shaped winds in old stars reveal presence of a partner
Towards the end of their lives some 95% of stars evolve into red giants which lose their mass via a “stellar wind”. Eventually they end up as planetary nebulae...
Star-forming galaxies in SDSS: signs of metallicity evolution.
La evolución de galaxias ha sido ampliamente estudiada a altosdesplazamientos al rojo, pero existen pocos estudios en este campo abajos desplazamientos al rojo...
It has been discovered that the most evolved intermediate-mass stars in our Galaxy are very rich in rubidium. This finding is the first observational evidence...
Stellar mass black holes in ultraluminous X ray sources.
Three decades ago one of the first astronomical satellites designed toobserve X-rays detected a new type of object: it had a much higher luminosity than any...
Se ha descubierto una corriente de marea gigantesca en la galaxia espiral NGC 4013, cuya estructura y edad es muy similar a la corriente estelar de Monoceros...
Corrientes estelares gigantes, surgidas tras la muerte de galaxias enanas, circundan las regiones exteriores de dos galaxias espirales. Se han identificado...
Strength of the large-scale magnetic field in nearby galaxies versus their rotation speed
Magnetic fields are present on all scales in the Universe from planets and stars to galaxies and galaxy clusters, and even at high redshifts. They are important...
Submillimetre galaxies reside in dark matter haloes with masses greater than 3×10<sup>11</sup> solar masses.
The extragalactic background light at far-infrared ( FIR) wavelengths comes from optically faint, dusty, star-forming galaxies in the Universe with star...