Tag: galaxy clusters
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Weird X-Rays Spur Speculation about Dark Matter Detection
[ I am reviving the Bowler Hat Science blog as a quick way to link all my new publications. Subscribe to the feed to keep up with all my stories! ] Weird X-Rays Spur Speculation about Dark Matter Detection From Scientific American: Many major discoveries in astronomy began with an unexplained signal: pulsars, quasars and…
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Think of the biggest black hole in the Universe. Now make it 10 times bigger….
The biggest black holes in the Universe reside at the centers of the largest galaxies. However, a new study suggests they may be proportionally even larger, compared with other galaxies. The bright cluster galaxies (BCGs) are huge galaxies found in the middle of galaxy clusters, where they grew by merging with and absorbing smaller galaxies.…
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Tracking dark energy using galaxy clusters
I write articles and posts on a lot of different topics, both for my own blog and at Ars Technica. Many of those subjects drift pretty far from my putative area of expertise, but occasionally I get to write about something I know pretty well. To wit: last week, a group of researchers using the…
Bowler Hat Science 