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It is the largest dwarf galaxy to crush us but still found
An artist's impression of the milky way colliding with the galaxy of sausages. Image credit: V. Belokurov (Cambridge, United Kingdom); According to the image of ESO / Juan Carlos Muñoz
About eight to ten billion years ago, a nearby dwarf galaxy called the galaxy of sausages hit the path Milky leaving a handful of gas, dust and stars. astrophysicists have traced the remains of debris to reconstruct the cosmic catastrophe detailed in an article published in the Monthly Notices of the Royal Astronomical Society
"The collision shredded the dwarf, letting his stars move in very radial orbits" Vasily Belokurov, first author of the article and researcher at the University of Cambridge and the Center for Computational Astrophysics of the Flatiron Institute
We traced the velocities of stars and sausage. the shape just jumped on us. As the smaller galaxy separated, its stars were thrown into very radial orbits. These sausage stars are what's left of the last major merger of the Milky Way, "said Wyn Evans, co-author of the article and professor of astronomy at the University of Cambridge. 19659007] Hubble photo showing a gravitational lens that distorts the appearance of the galaxy MACS J1206.2-0847 “/>
The DOOMED Milky Way to the Andromeda galaxy at high speed
READ MORE [19659010TheythinkthatthegalaxyofsausagesisthelargestdwarfgalaxytocollidewiththeMilkyWaytothisdayThemassincludinggasstarsanddarkmatterismorethan10billiontimesmoremassivethantheSunItgavealotofsubstancetotheyoungMilkyWaycreatingtheswollenbulgeinthecenterofitsspiralandtheringof"Thesausagestarsallturnaboutthesamedistancefromthecenterofthegalaxy"saidAlisDeasonco-authorofthearticleandresearcherattheInstituteforComputationalCosmologyatDurhamUnive
Computer simulations remodeling the accident also show that the sausage galaxy has given the Milky Way eight large, concentrated spots of stars called globular clusters – a feature that we do not usually not seen in small dwarf galaxies.
Dwarf satellites falling on the Milky Way during their lifetime, it was the greatest of all, "said Sergey Koposov, co-author of the article and assistant professor at Carnegie University Mellon. ®
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