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The most luminous galaxy in the Universe – a so-called obscured quasar 12.4 billion light-years away – is so violently turbulent that it may eventually jettison its entire supply of star-forming gas, ...
A primer on the (2 + 1) Einstein universe     Minkowski space  spacetime  Lorentzian manifold       font style='font-size:12px;'> 2015/9/29
The Einstein universe is the conformal compactification of Minkowski space. It also arises as the ideal boundary of anti-de Sitter space. The purpose of this article is to develop the syntheti...
Exploiting the earth atmosphere as a giant detector for the incoming extraterrestrial fl ux of high energy cosmic rays and cosmic neutrinos, the mission «EUSO-Extreme Universe Space Observatory&...
Milky Way-Like Galaxies May Have Existed in the Early Universe     Milky Way-Like Galaxies  Early Universe       font style='font-size:12px;'> 2015/8/13
A new, large-scale computer simulation has shown for the first time that large disk galaxies, much like our own Milky Way, may have existed in the early days of the universe.
The Atacama Large Millimeter/submillimeter Array (ALMA) has detected the most distant clouds of star-forming gas yet found in normal galaxies in the early Universe. The new observations allow astronom...
The National Science Foundation’s Green Bank Telescope (GBT) will join in the most powerful, comprehensive, and intensive scientific search ever for signs of intelligent life in the Universe. The inte...
The universe can be a very sticky place, but just how sticky is a matter of debate.That is because for decades cosmologists have had trouble reconciling the classic notion of viscosity based on the la...
Hunting for the WIMPs of the universe     Hunting  the WIMPs  the universe       font style='font-size:12px;'> 2015/4/30
Dark matter is a scientific mystery. We can't see or touch it. But physicists like Dan McKinsey theorize it must exist because, without it, the universe would look quite different.With support from th...
Why isn’t the universe as bright as it should be?     the universe  bright       font style='font-size:12px;'> 2015/3/18
A handful of new stars are born each year in the Milky Way, while many more blink on across the universe. But astronomers have observed that galaxies should be churning out millions more stars, based ...
The strategy is paying off. At the American Astronomical Society (AAS) meeting in Seattle this week, researchers reported early successes from the All-Sky Automated Survey for Supernova...
Studying the Nearby Universe with Chandra     Miller  Wang 2002       font style='font-size:12px;'> 2014/12/26
I highlight results from Chandr observations of nearby galaxies, including the Milky Way. These observations have offered insights into old mysteries and indications of new high energy astrophysical p...
The clustering dipole of the local universe from the Two Micron All Sky Survey     galaxies  clusters       font style='font-size:12px;'> 2014/12/24
The unprecedented sky coverage and photometric uniformity of the Two Micron All Sky Survey (2MASS) provides a rich resource for investigating the galaxies populating the local universe. A full charact...
Galaxy clustering and galaxy bias in a Lambda CDM universe     formation  large-scale structure of universe       font style='font-size:12px;'> 2014/12/24
We investigate galaxy clustering and the correlations between galaxies and mass in the ΛCDM cosmological model (inflationary cold dark matter with Ωm = 0.4, ΩΛ = 0.6, h = 0.65, n = 0.95, and σ8 = 0.8)...
We present a high signal-to-noise spectrum of a bright galaxy at z = 4.9 in 14 h of integration on VLT FORS2. This galaxy is extremely bright, i850 = 23:10  0:01, and is strongly-lensed by the foregr...
Galaxies in a simulated Lambda CDM Universe - I. Cold mode and hot cores     cooling fl  ows  feedback  cluster       font style='font-size:12px;'> 2014/12/23
We study the formation of galaxies in a large volume (50 h−1 Mpc, 2 × 2883 particles) cosmological simulation, evolved using the entropy and energy-conserving smoothed particle hydrodynamics (SP...

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