14 kwietnia 2016

Fwd: Dwarf dark galaxy hidden in ALMA gravitational lens image

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---------- Forwarded message ----------
From: National Science Foundation Update <nsf-update@nsf.gov>
Date: Thu, Apr 14, 2016 at 7:44 PM
Subject: Dwarf dark galaxy hidden in ALMA gravitational lens image
To: pascal.alter@gmail.com



You are subscribed to News - News From the Field for National Science Foundation Update. This information has recently been updated, and is now available.
04/14/2016 12:42 PM EDT

Composite image of gravitational lens
Subtle distortions hidden in an image from the NSF-funded Atacama Large Millimeter/submillimeter Array (ALMA) are telltale signs that a dwarf dark galaxy is lurking in the halo of a much larger galaxy nearly 4 billion light-years away. This discovery paves the way for ALMA to find many more such objects and could help astronomers address important questions on the nature of dark matter.

Full story at https://public.nrao.edu/news/pressreleases/2016-sdp81-halo

Source
National Radio Astronomy Observatory

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