Posts Tagged 'cosmology'

Atomic Gas Superfluid Might Help Model the Early Cosmos

novel-superfluid

Quantum physicists have shown that superfluid gases can conduct without experiencing any resistance, possibly paving a way to help model the early Universe in the lab.

Read more @ SciTechDaily

The Brightest Flare Ever Observed from Sagittarius A*

sagittarius-A-flare-black-hole

The supermassive black hole at the center of the Milky Way, Sagittarius A*, emits relatively little energy for its size, as much energy as Sol even though it’s 4 billion times as massive.

Read more @ SciTechDaily

12 Billion-Year Old Supernova Discovered by Astronomers

superluminous-supernova

Astronomers have discovered a pair superluminous supernovae, which are more than 10 billion years old. The Universe was only 3.75 billion years old back then. Of the pair, one is more remote and ranks as the most distant supernova ever discovered.

Read more @ SciTechDaily

Mira Supercomputer Will Run Simulation of Our Universe

dark-energy-simulation

The advent of the Mira supercomputer, along with more powerful Sequoia and K supercomputers, marks the first time that computers have enough computational power to simulate trillions of particles on the move, running a simulation of the Universe.

Read more @ SciTechDaily

Dark Matter Filament in Galaxy Supercluster Directly Measured

abell-222-223-sky

A filament of dark matter, which works like the Universe’s backbone, and dictates where galaxies can form, was observed for the first time by astronomers using a technique that could help astrophysicists understand the structure of the Universe.

Read more @ SciTechDaily

Gamma Ray Bursts Hold Clues to Chemical Composition of the Early Universe

gamma-ray-burst-cosmic-history

Gamma ray bursts (GRBs) have been routinely observed by orbiting observatories, such as NASA’s Fermi and Swift spacecraft, and astronomers are planning on using them as cosmic flashbulbs to probe the details of the early Universe. The researchers published their findings in the journal Nature today.

Read more @ SciTechDaily

Links Between Core Collapse Supernovae and Star Formation Established

Core-collapse-supernova

When massive stars accumulate more iron that they can hold, they explode in what is called a core-collapse supernova, also known as Type II supernovae. Such supernovae will enrich their surroundings with key elements, seeding them for the formation of other stars. Now, cosmologists and extragalactic astrophysicists have linked the number of core-collapse supernovae (CCSN) in a galaxy with the actual star formation rate (SFR).

Read more @ SciTechDaily


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