Astronomers say they have solved an outstanding problem that challenged our understanding of how the Universe evolved – the spatial distribution of faint satellite galaxies orbiting the Milky Way. These satellite galaxies exhibit a bizarre alignment – they seem to lie on an enormous thin rotating
One of the new high-resolution simulations of the dark matter enveloping the Milky Way and its neighbor, the Andromeda galaxy. The new study shows that earlier, failed attempts to find counterparts of the plane of satellites that surrounds the Milky Way in dark matter simulations was due to a lack of resolution. Credit: Till Sawala/Sibelius collaboration
Their research removes the challenge posed by the plane of satellites to the standard model of cosmology. Since the plane of satellites was discovered in the 1970s, astronomers have tried without success to find similar structures in realistic supercomputer simulations that track the evolution of the Universe from theThe fact that the arrangement of satellites could not be explained led researchers to think that the cold dark matter theory of galaxy formation might be wrong.
They realized that previous studies based on simulations had been misled by failing to consider the distances of satellites from the center of the Galaxy, which made the virtual satellite systems appear much rounder than the real one.
France Dernières Nouvelles, France Actualités
Similar News:Vous pouvez également lire des articles d'actualité similaires à celui-ci que nous avons collectés auprès d'autres sources d'information.
A very SF horoscope: Capricorn season offers a cosmic do-overIt’s as if the planets are meeting with the wise, benevolent CEO of the zodiac.
Lire la suite »
Astronomers discover deep-space 'structure,' 1.4 billion light years acrossAddress to: Earth, Solar System, Milky Way, Local Group cluster, Virgo cluster, Laniakea supercluster.
Lire la suite »
Merry Cosmic Christmas. The Planets Are Aligning With the New Moon for Some Holiday MagicThere's another reason to look up in the sky tonight. Enjoy a cosmic Christmas, with all five naked-eye planets visible in the sky. The moon, Mercury and Venus will form a sparkling triangle on Christmas Eve.
Lire la suite »
Police investigating homicide at Jehovah’s Witnesses congregation in ThorntonNEW: Authorities in Thornton were responding to a shooting at the Jehovah’s Witnesses congregation at 951 Milky Way on Christmas morning, according to the Adams County Sheriff’s Office.
Lire la suite »
Hey Ray: The science behind Santa's worldwide tripFor years, Ray has been trying to figure out how Santa does it and now he thinks he's cracked the case!
Lire la suite »
Winter on Mars looks beautiful in this festive NASA videoDoris is a science journalist and Space.com contributor. She received a B.A. in Sociology and Communications at Fordham University in New York City. Her first work was published in collaboration with London Mining Network, where her love of science writing was born. Her passion for astronomy started as a kid when she helped her sister build a model solar system in the Bronx. She got her first shot at astronomy writing as a Space.com editorial intern and continues to write about all things cosmic for the website. Doris has also written about microscopic plant life for Scientific American’s website and about whale calls for their print magazine. She has also written about ancient humans for Inverse, with stories ranging from how to recreate Pompeii’s cuisine to how to map the Polynesian expansion through genomics. She currently shares her home with two rabbits. Follow her on twitter at salazar_elin.
Lire la suite »