Galaxy murder mystery
It's the big astrophysical whodunnit. Across the Universe, galaxies are being killed and the question scientists want answered is, what's killing them?
Astronomy
Jan 17, 2017
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Page 6 - News tagged with matter halos
In galaxy clustering, mass may not be the only thing that matters
An international team of researchers, including Carnegie Mellon University's Rachel Mandelbaum, has shown that the relationship between galaxy clusters and their surrounding dark matter halo is more complex than previously ...
General Physics
Jan 25, 2016
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Galaxy quakes could improve hunt for dark matter
A trio of brightly pulsating stars at the outskirts of the Milky Way is racing away from the galaxy and may confirm a method for detecting dwarf galaxies dominated by dark matter and explain ripples in the outer disk of the ...
Astronomy
Jan 7, 2016
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The cosmic evolution of galaxies
Our knowledge of the big bang has increased dramatically in the past decade, as satellites and ground-based studies of the cosmic microwave background have refined parameters associated with the very early universe, achieving ...
Astronomy
May 11, 2015
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Dark matter guides growth of supermassive black holes
Every massive galaxy has a black hole at its center, and the heftier the galaxy, the bigger its black hole. But why are the two related? After all, the black hole is millions of times smaller and less massive than its home ...
Astronomy
Feb 18, 2015
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Small-scale challenges to the cold dark matter model
(Phys.org)—A collaborative of researchers from several U.S. universities has published a new paper that explains the major contradictions presented by the prevailing cold dark matter (CDM) cosmological model, and proposes ...
Research pair suggests dark matter could create halos of light around galaxies
(Phys.org)—A pair of researchers affiliated with Institut d'Astrophysique de Paris has suggested that dark matter may impact light in a way not thought of before. In their paper published in the journal Physical Review ...
Decoding the gravitational evolution of dark matter halos
Researchers at Kavli IPMU and their collaborators have revealed that considering environmental effects such as a gravitational tidal force spread over a scale much larger than a galaxy cluster is indispensable to explain ...
General Physics
Jan 13, 2015
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'Cosmic own goal' another clue in hunt for dark matter
The hunt for dark matter has taken another step forward thanks to new supercomputer simulations showing the evolution of our "local Universe" from the Big Bang to the present day.
Astronomy
Jun 25, 2014
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Can super-fast stars unveil dark matter's secrets?
Zoom! A star was recently spotted speeding at 1.4 million miles an hour (2.2 million km/hr), which happened to be the closest and second-brightest of the so-called "hypervelocity" stars found so far.
Astronomy
May 13, 2014
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