- #1
ivorax
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Hey folks, so perhaps some of you may have heard/read of Dietrich, et al, recent paper on dark matter "tendrils" being "directly detected" between the galaxy clusters Abell 222 and Abell 223 (see a synopsis by Nature here: http://www.nature.com/news/dark-matter-s-tendrils-revealed-1.10951).
My question is with regards to the specific nature of the detection. What makes it, in particular, a DIRECT detection of dark matter? I thought that direct detection could only be achieved by experiments--not through the inference of missing mass (no matter how robust their methodology is).
Can someone clarify this?
Thanks
My question is with regards to the specific nature of the detection. What makes it, in particular, a DIRECT detection of dark matter? I thought that direct detection could only be achieved by experiments--not through the inference of missing mass (no matter how robust their methodology is).
Can someone clarify this?
Thanks