ZPE_Logo
  
Search        
  Create an account Home  ·  Topics  ·  Downloads  ·  Your Account  ·  Submit News  ·  Top 10  
Mission Statement

Modules
· Home
· Forum
· LATEST COMMENTS
· Special Sections
· SUPPORT ZPEnergy
· Advertising
· AvantGo
· Books
· Downloads
· Events
· Feedback
· Link to us
· Private Messages
· Search
· Stories Archive
· Submit News
· Surveys
· Top 10
· Topics
· Web Links
· Your Account

Who's Online
There are currently, 193 guest(s) and 0 member(s) that are online.

You are Anonymous user. You can register for free by clicking here

Events

Hot Links
Aetherometry

American Antigravity

Chava Energy

Closeminded Science

EarthTech

Energy Science

Energy21

Innoplaza

Integrity Research Institute

Interstellar Technologies

JLN Labs

KeelyNet

New Energy Movement

New Energy Times

The Orion Proj.

Panacea-BOCAF

QVac_Eng

RexResearch

Science Hobbyist

Tom Bearden's Page

Unlimited electric energy

USPTO

Want to Know

Other Info-Sources
NE News Sites
AER_Network
Alternative Energy News
KeelyNet_News
NextEnergyNews
PESWiki/News
NE Discussion Groups
Energetic Forum
Energy2000
Free_Energy
Greenglow
JLNLabs
KeelyNet
NuEnergy
OverUnity
Sarfatti_Physics
Sweet-VTA
Tapten
Tomorrow-energy
Vortex
Magazine Sites
Distributed Energy
Electrifying Times
ExtraOrdinary Technology
IE Magazine
New Energy Times

Interesting Links

Click Here for the DISCLOSURE PROJECT
SciTech Daily Review
NEXUS Magazine
radioioAmbient

Chinese astronomers reveal evidence of dynamical dark energy
Posted on Wednesday, September 13, 2017 @ 08:57:24 EDT by vlad

Science LOS ANGELES, Sept. 11 (Xinhua) -- An international research team led by Chinese astronomers revealed an evidence of dynamical dark energy.

The discovery, recently published on Nature Astronomy, with a News & Views article written by a world expert on cosmology, found that the nature of dark energy may not be the cosmological constant introduced by Albert Einstein 100 years ago, which is crucial for the study of dark energy.

The new study was supported by the National Natural Science Foundation of China (NSFC), Chinese Academy of Sciences, and a Royal Society Newton Advanced Fellowship.

Revealing the nature of dark energy is one of key goals of modern sciences. The physical property of dark energy is represented by its Equation of State (EoS), which is the ratio of pressure and energy density of dark energy.

In the traditional Lambda-Cold Dark Matter (LCDM) model, dark energy is essentially the cosmological constant, i.e., the vacuum energy, with a constant EoS of -1. In this model, dark energy has no dynamical features.

In 2016, a team within the SDSS-III (BOSS) collaboration led by Prof. Gong-Bo Zhao of National Astronomical Observatories of China (NAOC) performed a successful measurement of the Baryonic Acoustic Oscillations (BAO) at multiple cosmic epochs with a high precision.

Based on this measurement and a method developed by Zhao for dark energy studies, the Zhao team found an evidence of dynamical dark energy at a significance level of 3.5 sigma. This suggests that the nature of dark energy may not be the vacuum energy, but some kind of dynamical field, especially for the quintom model whose EoS varies with time and crosses the -1 boundary during evolution, according to NAOC.

"As the Zhao team reported in this work, a dynamical dark energy model is able to naturally reconcile tensions between local and primordial measurements of cosmological parameters in the LCDM model," Prof. Xinmin Zhang at the Institute of High Energy Physics (IHEP) of the Chinese Academy of Sciences (CAS) told Xinhua.

"Which makes a crucial step towards understanding the nature of dark energy," he added.

The dynamics of dark energy needs to be confirmed by next-generation astronomical surveys. The team points to the upcoming Dark Energy Spectroscopic Instrument (DESI) survey, which aims to begin creating a 3D cosmic map in 2018.

In the next five to ten years, the world largest galaxy surveys will provide observables which may be key to unveil the mystery of dark energy, according to a news release of NAOC.

Source: http://news.xinhuanet.com/english/2017-09/12/c_136601790.htm

 
Login
Nickname

Password

Security Code: Security Code
Type Security Code

Don't have an account yet? You can create one. As a registered user you have some advantages like theme manager, comments configuration and post comments with your name.

Related Links
· More about Science
· News by vlad


Most read story about Science:
100 miles on 4 ounces of water?


Article Rating
Average Score: 0
Votes: 0

Please take a second and vote for this article:

Excellent
Very Good
Good
Regular
Bad


Options

 Printer Friendly Printer Friendly


"Chinese astronomers reveal evidence of dynamical dark energy" | Login/Create an Account | 0 comments
The comments are owned by the poster. We aren't responsible for their content.

No Comments Allowed for Anonymous, please register

 

All logos and trademarks in this site are property of their respective owner. The comments are property of their posters, all the rest © 2002-2016 by ZPEnergy. Disclaimer: No content, on or affiliated with ZPEnergy should be construed as or relied upon as investment advice. While every effort is made to ensure that the information contained on ZPEnergy is correct, the operators of ZPEnergy make no warranties as to its accuracy. In all respects visitors should seek independent verification and investment advice.
Keywords: ZPE, ZPF, Zero Point Energy, Zero Point Fluctuations, ZPEnergy, New Energy Technology, Small Scale Implementation, Energy Storage Technology, Space-Energy, Space Energy, Natural Potential, Investors, Investing, Vacuum Energy, Electromagnetic, Over Unity, Overunity, Over-Unity, Free Energy, Free-Energy, Ether, Aether, Cold Fusion, Cold-Fusion, Fuel Cell, Quantum Mechanics, Van der Waals, Casimir, Advanced Physics, Vibrations, Advanced Energy Conversion, Rotational Magnetics, Vortex Mechanics, Rotational Electromagnetics, Earth Electromagnetics, Gyroscopes, Gyroscopic Effects

PHP-Nuke Copyright © 2005 by Francisco Burzi. This is free software, and you may redistribute it under the GPL. PHP-Nuke comes with absolutely no warranty, for details, see the license.