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UrduAstrónomos de diversas partes del mundo están realizando un análisis inicial de los datos del primer año de estudio del Instrumento Espectroscópico de Energía Oscura, que lleva a cabo un sondeo de 5 años para crear el mapa en 3D más grande que se haya hecho sobre el Universo. Utilizando el espectro de las galaxias cercanas y de cuásares distantes, los astrónomos reportaron que lograron medir la historia de la expansión del Universo con la mayor precisión jamás alcanzada, proporcionando un panorama sin precedentes sobre la naturaleza de la energía oscura y su efecto en la estructura a gran escala del Universo.
Tag: Quasar
DESI Looks 11 Billion Years Into the Past to Reveal Most Detailed View Ever of the Expanding Universe
The Dark Energy Spectroscopic Instrument is conducting a five-year survey to create the largest 3D map of the Universe ever. Astronomers are now performing initial analysis of the survey’s first-year data. Using spectra of nearby galaxies and distant quasars, astronomers report that they have measured the expansion history of the Universe with the highest precision ever, providing an unprecedented look at the nature of dark energy and its effect on the Universe’s large-scale structure.
Gas on the run
Theoretical predictions have been confirmed with the discovery of an outflow of molecular gas from a quasar when the Universe was less than a billion years old.
Astronomers Reveal New Features of Galactic Black Holes
An international team of scientists, including UNLV astrophysicist Bing Zhang, reports in the July 26 issue of Nature a dedicated observational campaign on the Galactic microquasar dubbed GRS 1915+105. The team revealed features of a microquasar system that have never before been seen.
Quasar Discovery Sets New Distance Record
Astronomers have discovered the most distant quasar yet found. The quasar is seen as it was only 670 million years after the Big Bang, and is providing valuable clues about how huge black holes and their host galaxies formed in the early Universe.