• About us
  • Contact
Sunday, October 1, 2023
No Result
View All Result
NEWSLETTER
Times Of Nation
-18 °c
  • Top Stories
  • Genetics
  • Environment
  • Wildlife
  • Outer space
    See Jupiter meet up with a bright moon in the night sky tonight

    See Jupiter meet up with a bright moon in the night sky tonight

    Let the Robot Take the Wheel. Autonomous Navigation in Space

    Let the Robot Take the Wheel. Autonomous Navigation in Space

    The Milky Way’s Mass is Much Lower Than We Thought

    The Milky Way’s Mass is Much Lower Than We Thought

    Brilliant Harvest Moon, the last supermoon of 2023, wows stargazers around the world (photos)

    Brilliant Harvest Moon, the last supermoon of 2023, wows stargazers around the world (photos)

    Lasers cut through star trails in beautiful photo from the European Southern Observatory

    Lasers cut through star trails in beautiful photo from the European Southern Observatory

    Celebrate ‘Star Wars Rebels’ 10th anniversary with Marvel Comics

    Celebrate ‘Star Wars Rebels’ 10th anniversary with Marvel Comics

    New York City is sinking — and it’s not just because of the flooding

    New York City is sinking — and it’s not just because of the flooding

    Watch the glow of the Milky Way and ghostly zodiacal light during the 2023 Perseid meteor shower (video)

    Watch the glow of the Milky Way and ghostly zodiacal light during the 2023 Perseid meteor shower (video)

    Since Aliens Obey the Laws of Physics, Can We Guess What They Look Like?

    Since Aliens Obey the Laws of Physics, Can We Guess What They Look Like?

  • Physics
    Mysterious antimatter observed falling down for first time

    Mysterious antimatter observed falling down for first time

    Scientists discover a durable but sensitive material for high energy X-ray detection

    Scientists discover a durable but sensitive material for high energy X-ray detection

    Scientists observe interaction of components in tire rubber at the atomic scale

    Scientists observe interaction of components in tire rubber at the atomic scale

    Trending Tags

    • geophysics
    • quantum
    • physicists
    • physiology
    • physical
    • holography
  • Top Stories
  • Genetics
  • Environment
  • Wildlife
  • Outer space
    See Jupiter meet up with a bright moon in the night sky tonight

    See Jupiter meet up with a bright moon in the night sky tonight

    Let the Robot Take the Wheel. Autonomous Navigation in Space

    Let the Robot Take the Wheel. Autonomous Navigation in Space

    The Milky Way’s Mass is Much Lower Than We Thought

    The Milky Way’s Mass is Much Lower Than We Thought

    Brilliant Harvest Moon, the last supermoon of 2023, wows stargazers around the world (photos)

    Brilliant Harvest Moon, the last supermoon of 2023, wows stargazers around the world (photos)

    Lasers cut through star trails in beautiful photo from the European Southern Observatory

    Lasers cut through star trails in beautiful photo from the European Southern Observatory

    Celebrate ‘Star Wars Rebels’ 10th anniversary with Marvel Comics

    Celebrate ‘Star Wars Rebels’ 10th anniversary with Marvel Comics

    New York City is sinking — and it’s not just because of the flooding

    New York City is sinking — and it’s not just because of the flooding

    Watch the glow of the Milky Way and ghostly zodiacal light during the 2023 Perseid meteor shower (video)

    Watch the glow of the Milky Way and ghostly zodiacal light during the 2023 Perseid meteor shower (video)

    Since Aliens Obey the Laws of Physics, Can We Guess What They Look Like?

    Since Aliens Obey the Laws of Physics, Can We Guess What They Look Like?

  • Physics
    Mysterious antimatter observed falling down for first time

    Mysterious antimatter observed falling down for first time

    Scientists discover a durable but sensitive material for high energy X-ray detection

    Scientists discover a durable but sensitive material for high energy X-ray detection

    Scientists observe interaction of components in tire rubber at the atomic scale

    Scientists observe interaction of components in tire rubber at the atomic scale

    Trending Tags

    • geophysics
    • quantum
    • physicists
    • physiology
    • physical
    • holography
No Result
View All Result
Times Of Nation
No Result
View All Result
bayan çanta
Home Outer space

A new Simulation of the Universe Contains 60 Trillion Particles, the Most Ever

by TimesOfNation
November 17, 2021
in Outer space
A new Simulation of the Universe Contains 60 Trillion Particles, the Most Ever
3
SHARES
21
VIEWS
Share on FacebookShare on Twitter

A new Simulation of the Universe Contains 60 Trillion Particles, the Most Ever: Times Of Nation

RelatedArticles

See Jupiter meet up with a bright moon in the night sky tonight

Let the Robot Take the Wheel. Autonomous Navigation in Space

The Milky Way’s Mass is Much Lower Than We Thought

Today, the greatest mysteries facing astronomers and cosmologists are the roles gravitational attraction and cosmic expansion play in the evolution of the Universe. To resolve these mysteries, astronomers and cosmologists are taking a two-pronged approach. These consist of directly observing the cosmos to observe these forces at work while attempting to find theoretical resolutions for observed behaviors – such as Dark Matter and Dark Energy.

In between these two approaches, scientists model cosmic evolution with computer simulations to see if observations align with theoretical predictions. The latest of which is AbacusSummit, a simulation suite created by the Flatiron Institute’s Center for Computational Astrophysics (CCA) and the Harvard-Smithsonian Center for Astrophysics (CfA). Capable of processing nearly 60 trillion particles, this suite is the largest cosmological simulation ever produced.

The creators of AbacusSummit announced the simulation suite in a series of papers that appeared in the Monthly Notices of the Royal Astronomical Society (MNRAS). Made up of more than 160 simulations, it models how particles behave in a box-shaped environment due to gravitational attraction. These models are known as N-body simulations and are intrinsic to modeling how dark matter interacts with baryonic (aka. “visible”) matter.

The simulated distribution of dark matter in galaxies. Credit: Brinckmann et al.

The development of the AbacusSummit simulation suite was led by Lehman Garrison (a CCA research fellow) and Nina Maksimova and Daniel Eisenstein, a graduate student and professor of astronomy with the CfA (respectively). The simulations were run on the Summit supercomputer at the Oak Ridge Leadership Computing Facility (ORLCF) in Tennessee – overseen by the U.S. Department of Energy (DoE).

N-body calculations, which consist of computing the gravitational interaction of planets and other objects, are among the greatest challenges facing astrophysicists today. Part of what makes it daunting is that each object interacts with every other object, regardless of how far apart they are – the more objects under study, the more interactions that need to be accounted for.

To date, there is still no solution for N-body problems where three or more massive bodies are involved, and the calculations available are mere approximations. For example, the mathematics for calculating the interaction of three bodies, such as a binary star system and a planet (known as the “Three-Body Problem”), is yet to be resolved. A common approach with cosmological simulations is stopping the clock, calculating the total force acting on each object, moving time ahead slowly, and repeating.

For the sake of their research (which was led by Maksimova), the team designed their codebase (called Abacus) to take advantage of Summit’s parallel processing power – whereby multiple calculations can run simultaneously. They also relied on machine learning algorithms and a new numerical method, which allowed them to calculate 70 million particles per node/s at early times and 45 million particle updates per node/s at late times.

A snapshot of one of the AbacusSummit simulations, shown at various zoom scales: 10 billion light-years across, 1.2 billion light-years across, and 100 million light-years across. Credit: The AbacusSummit Team/ layout by Lucy Reading-Ikkanda/Simons Foundation

As Garrison explained in a recent CCA press release:

“This suite is so big that it probably has more particles than all the other N-body simulations that have ever been run combined – though that’s a hard statement to be certain of. The galaxy surveys are delivering tremendously detailed maps of the Universe, and we need similarly ambitious simulations that cover a wide range of possible universes that we might live in.

“AbacusSummit is the first suite of such simulations that has the breadth and fidelity to compare to these amazing observations… Our vision was to create this code to deliver the simulations that are needed for this particular new brand of galaxy survey. We wrote the code to do the simulations much faster and much more accurately than ever before.”

In addition to the usual challenges, running full simulations of N-body calculations requires that algorithms be carefully designed because of all the memory storage involved. This means that Abacus couldn’t make copies of the simulation for different supercomputer nodes to work on and divided each simulation into a grid instead. This consists of making approximate calculations for distant particles, which play a smaller role than nearby ones.

It then splits off the nearby particles into multiple cells so the computer can work on each independently, then combines the results of each with the approximation of distant particles. The research team found that this approach (uniform divisions) makes better use of parallel processing and allows a large amount of the distant-particle approximation to be computed before the simulation starts.

Abacus’ parallel computer processing, visualized. Credit: Lucy Reading-Ikkanda/Simons Foundation

This is a significant improvement to other N-body codebases, which irregularly divide simulations based on the distribution of particles. Thanks to its design, Abacus can update 70 million particles per node/second (where each particle represents a clump of Dark Matter with three billion solar masses). It can also analyze the simulation as it’s running and search for patches of Dark Matter that indicate the presence of bright star-forming galaxies.

These and other cosmological objects will be the subject of future surveys that map the cosmos in unprecedented detail. These include the Dark Energy Spectroscopic Instrument (DESI), the Nancy Grace Roman Space Telescope (RST), and the ESA’s Euclid spacecraft. One of the goals of these big-budget missions is to improve estimations of the cosmic and astrophysical parameters that determine how the Universe behaves and how it looks.

This, in turn, will allow for more detailed simulations that employ updated values for various parameters, such as Dark Energy. Daniel J. Eisenstein, a researcher with the CfA and a co-author on the paper, is also a member of the DESI collaboration. He and others like him are looking forward to what Abacus can do for these cosmological surveys in the coming years.

“Cosmology is leaping forward because of the multidisciplinary fusion of spectacular observations and state-of-the-art computing,” he said. “The coming decade promises to be a marvelous age in our study of the historical sweep of the universe.”

Further Reading: Simons Foundation, MNRAS

The post A new Simulation of the Universe Contains 60 Trillion Particles, the Most Ever appeared first on Universe Today.

(News Source :Except for the headline, this story has not been edited by Times Of Nation staff and is published from a www.universetoday.com feed.)

Read Also: Latest News | Current Affairs News | Today News | English News | World News Today

TimesofNation.com offer news and information like: English newspaper today | today English news | English news live | times India | today news in English in India | breaking news in India today | India TV news today & Hindustan News.

You can Read on TimesofNation.com latest news today, breaking news headlines, Top news. Discover national and international news on economy, politics, defence, sports, world news & other relatively current affair’s news.

Tags: particlesSimulationTrillionUniverse
Plugin Install : Subscribe Push Notification need OneSignal plugin to be installed.
TimesOfNation

TimesOfNation

Related Posts

Ultrafast quantum simulation of large-scale quantum entanglement

Ultrafast quantum simulation of large-scale quantum entanglement

by TimesOfNation
September 29, 2023
1

Ultrafast quantum simulation of large-scale quantum entanglement- Times Of Nation Credit- NINS/IMS A research group led by Professor Kenji Ohmori...

‘Dark universe’ telescope Euclid faces some setbacks during commissioning

‘Dark universe’ telescope Euclid faces some setbacks during commissioning

by TimesOfNation
September 28, 2023
2

'Dark universe' telescope Euclid faces some setbacks during commissioning: Times Of Nation The European Space Agency’s (ESA) Euclid space telescope...

If You Could See Gravitational Waves, the Universe Would Look Like This

If You Could See Gravitational Waves, the Universe Would Look Like This

by TimesOfNation
September 22, 2023
4

If You Could See Gravitational Waves, the Universe Would Look Like This: Times Of Nation Imagine if you could see...

This 3D Simulation of a Supernova Needed 5 Million Hours of Supercomputing

This 3D Simulation of a Supernova Needed 5 Million Hours of Supercomputing

by TimesOfNation
September 22, 2023
3

This 3D Simulation of a Supernova Needed 5 Million Hours of Supercomputing: Times Of Nation When the largest stars in...

In helium-three, superfluid particles pair ‘like a dance in space’

In helium-three, superfluid particles pair ‘like a dance in space’

by TimesOfNation
September 21, 2023
2

In helium-three, superfluid particles pair 'like a dance in space'- Times Of Nation Cell Schematic. a The location of the...

A model probing the connection between entangled particles and wormholes in general relativity

A model probing the connection between entangled particles and wormholes in general relativity

by TimesOfNation
September 21, 2023
1

A model probing the connection between entangled particles and wormholes in general relativity- Times Of Nation This shows the simulation,...

Next Post
Physicists reveal non-reciprocal flow around the quantum world

Physicists reveal non-reciprocal flow around the quantum world

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

I agree to the Terms & Conditions and Privacy Policy.

Recommended

These Nizam descendants get paid Rs 4 to Rs 150 a month | India News – Times of India

These Nizam descendants get paid Rs 4 to Rs 150 a month | India News – Times of India

7 months ago
2
Mars donut! Perseverance rover spots holey Red Planet rock (photo)

Mars donut! Perseverance rover spots holey Red Planet rock (photo)

3 months ago
3

Popular News

  • Watch a dust devil swirl across Mars in this video from NASA’s Perseverance rover

    Watch a dust devil swirl across Mars in this video from NASA’s Perseverance rover

    1 shares
    Share 0 Tweet 0
  • Heart rate monitors to measure stress on maned wolves in Brazil’s Cerrado

    1 shares
    Share 0 Tweet 0
  • Study paves the way for new class of nanoscale devices, new opportunities in photonics

    1 shares
    Share 0 Tweet 0
  • Billy walters, wild diamond 7x rodadas grátis

    2 shares
    Share 1 Tweet 1
  • Kerala 5-Year LLB First Phase Final Allotment List 2023 Released – News18

    1 shares
    Share 0 Tweet 0

About

Times Of Nation

timesofnation.com is a dedicated news website for core sciences, technology, medical research and health news along with current affairs coverage from India. the timesofnation.com website is one of the fast growing online communities for science-minded people....Read more

Category

  • Business News
  • Environment
  • Genetics
  • India
  • Outer space
  • Physics
  • Wildlife

Site Links

  • Corrections Policy
  • Fact Checking Policy
  • Terms of Service
  • Privacy Policy

Contact Us

Email us to send your suggestions
editor[@]timesofnation.com
Send articles and news to editor[@]timesofnation.com
For other enquiries: admin[@]timesofnation.com
If you find any content violating the editorial code of conduct mail to editor[@]timesofnation.com.

  • Corrections Policy
  • Fact Checking Policy
  • Terms of Service
  • Privacy Policy

© 2021 Times of Nation. All rights reserved.

ankara escort çankaya escort çankaya escort escort bayan çankaya istanbul rus escort eryaman escort ankara escort kızılay escort istanbul escort ankara escort ankara escort escort ankara istanbul rus Escort atasehir Escort beylikduzu Escort Ankara Escort malatya Escort kuşadası Escort gaziantep Escort izmir Escort
No Result
View All Result
  • Home
  • Genetics
  • Environment
  • Wildlife
  • Outer space
  • Physics

© 2021 Times of Nation. All rights reserved.

Login to your account below

Forgotten Password? Sign Up

Fill the forms bellow to register

All fields are required. Log In

Retrieve your password

Please enter your username or email address to reset your password.

Log In
This website uses cookies. By continuing to use this website you are giving consent to cookies being used. Visit our Privacy and Cookie Policy.