The Sagittarius Impact as an Architect of Spirality and Outer Rings in the Milky Way: Movie #2
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Uploaded by chriswpurcell on Sep 9, 2011
Purcell et al. 2011, Nature, Vol. 477, No. 7364, "The Sagittarius Impact as an Architect of Spirality and Outer Rings in the Milky Way"
http://www.chrispurcell.org/workshop/sgr.html
Time evolution of the "light Sgr" satellite impact, from 2.65 billion years ago to the present-day. In this visualization, the multicolored disk is a 3D-density volume rendering, and the stars in the infalling Sgr satelilte are colored according to their total energy (indicating the degree to which they remain bound to the disrupting dark matter subhalo). Note the emergence of spiral structure in the MIlky Way disk as a response to the first disk crossing during infall. (visualization credit: Erik Tollerud)
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interesting theory
Neueregel 2 months ago
@disappearences well that's about all Hominid species in 2 frames
Neueregel 5 months ago
3840579.7 years per frame!
disappearences 5 months ago