Missing galaxies found hiding in plain sight

• Autores: Michael Slezak
• Localización: New scientist, ISSN 0262-4079, Nº. 3021, 2015, pág. 11
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • In 2005, astronomers found that there were a a lot of compact spherical galaxies in the early, distant universe. These galaxies, which appeared to be about a third of the size of ones in people's own backyard with a comparable mass and shape, were abundant about 11 billion years ago but seemed scarce nowadays. The local universe is dominated by large "elliptical" galaxies--giant clouds of stars with little structure--and disc galaxies like the Milky Way. Computer simulations showed that these galaxies of the early universe could have been destroyed through mergers and collisions with each other.