LOFAR Sky Map Reveals One Million Never-Before-Seen Galaxies 

February 25, 2022

JÜLICH, Germany, Feb. 25, 2022 — For seven years, an international research team has collected radio signals from space. The data have now been published as a new sky map, which provides a unique picture of the wonders of our universe. For the first time, 4.4 million galaxies were made visible in the radio wave range. One million of these galaxies were previously completely unknown. The discoveries were made using the European LOFAR telescope, the largest radio telescope ever built. The Jülich supercomputer JUWELS, currently the fastest supercomputer in Europe, helped to process the gigantic data sets with its enormous computing power.

A composite radio (LoTSS; red) and infrared (WISE; white) image of the Coma cluster which is over 300 million light years from Earth and consists of over 1,000 individual galaxies. The radio image shows radiation from highly energetic particles that pervade the space between the galaxies. Copyright: Annalisa Bonafede

By using the European radio telescope LOFAR, the researchers have mapped around a quarter of the northern sky in unprecedented resolution and made it accessible to the public online at https://lofar-surveys.org. The vast majority of these objects are billions of light years away and are either galaxies that harbor massive black holes or are rapidly growing new stars. Rarer objects that have been discovered include colliding groups of distant galaxies and flare stars within the Milky Way.

“This project is so exciting to work on. Each time we create a map, our screens are filled with new discoveries and objects that have never before been seen by human eyes,“ says Timothy Shimwell from the Netherlands Institute for Radio Astronomy (ASTRON) and Leiden University.

New Members in the Galaxy Zoo

The wealth of new information contained in the maps is evident from a host of recent scientific publications that make use of the radio images. For example, the team today published the largest ever studies of colliding galaxy clusters comprising between hundreds and thousands of galaxies – the universe’s largest structures.

Previous results include: finding curious signals from nearby stars that may be induced by orbiting exoplanets; pinpointing the slowest spinning pulsar that challenges current theories describing such objects; observing so called “jellyfish galaxies” shedding material as they travel through the surrounding medium; and discovering so many radio galaxies of all shapes, sizes, and ages that a citizen science project has been set up to help find new black holes in this zoo of objects.

Remains of a supernova: A composition radio (LoTSS; purple), UV (GALEX; yellow) and X-ray (ROSAT; blue) image of the Cygnus loop supernova remnant. This spectacular structure in the Milky Way is something to look forward to in future LoTSS data releases as the survey is now beginning to explore our Galaxy. Copyright: Jennifer West

Data to Fill 20,000 Laptop Hard Drives

Whilst these discoveries are already refining our understanding of the universe, it is also clear that the research conducted to date merely scratches the surface of what is yet to come. The data that have been released only represent 27 percent of the entire survey. Nevertheless, they are based on really large data sets. To produce the map, researchers processed 3,500 hours of observations that occupy 8 petabytes of disk space – the equivalent to roughly 20,000 laptops. A large part of this, over 60 percent, comes from the LOFAR long-term archive at the Jülich Supercomputing Centre (JSC). The JSC at Forschungszentrum Jülich is one of three data centers participating in the project. It hosts about one third of the LOFAR data archive, which totals around 55 petabytes.

“In order to make sense of this enormous amount of data generated by the LOFAR telescope, high-performance computers stationed throughout Europe are used. A major challenge is the calibration of the measured signals, for which we were able to access the Jülich supercomputer JUWELS, which has a computing capacity equivalent to 300,000 modern PCs,” says Matthias Hoeft of the Thuringian State Observatory in Tautenburg. “This is an important task. In a first step, interfering influences on the signals are determined from the measurement data using cutting-edge algorithms. These disturbances are filtered out if necessary, so that the actual brightness distribution of the sky can be reconstructed for scientific evaluations.”

To read more, including the prospect of further findings, visit the original article at this link.


Source: Jülich Supercomputing Centre (JSC)

Subscribe to HPCwire's Weekly Update!

Be the most informed person in the room! Stay ahead of the tech trends with industy updates delivered to you every week!

Quantum Riches and Hardware Diversity Are Discouraging Collaboration

November 28, 2022

Quantum computing is viewed as a technology for generations, and the spoils for the winners are huge, but the diversity of technology is discouraging collaboration, an Intel executive said last week. There are close t Read more…

2022 Road Trip: NASA Ames Takes Off

November 25, 2022

I left Dallas very early Friday morning after the conclusion of SC22. I had a race with the devil to get from Dallas to Mountain View, Calif., by Sunday. According to Google Maps, this 1,957 mile jaunt would be the longe Read more…

2022 Road Trip: Sandia Brain Trust Sounds Off

November 24, 2022

As the 2022 Great American Supercomputing Road Trip carries on, it’s Sandia’s turn. It was a bright sunny day when I rolled into Albuquerque after a high-speed run from Los Alamos National Laboratory. My interview su Read more…

2022 HPC Road Trip: Los Alamos

November 23, 2022

With SC22 in the rearview mirror, it’s time to get back to the 2022 Great American Supercomputing Road Trip. To refresh everyone’s memory, I jumped in the car on November 3rd and headed towards SC22 in Dallas, stoppi Read more…

Chipmakers Looking at New Architecture to Drive Computing Ahead

November 23, 2022

The ability to scale current computing designs is reaching a breaking point, and chipmakers such as Intel, Qualcomm and AMD are putting their brains together on an alternate architecture to push computing forward. The chipmakers are coalescing around the new concept of sparse computing, which involves bringing computing to data... Read more…

AWS Solution Channel

Shutterstock 110419589

Thank you for visiting AWS at SC22

Accelerate high performance computing (HPC) solutions with AWS. We make extreme-scale compute possible so that you can solve some of the world’s toughest environmental, social, health, and scientific challenges. Read more…

 

shutterstock_1431394361

AI and the need for purpose-built cloud infrastructure

Modern AI solutions augment human understanding, preferences, intent, and even spoken language. AI improves our knowledge and understanding by delivering faster, more informed insights that fuel transformation beyond anything previously imagined. Read more…

QuEra’s Quest: Build a Flexible Neutral Atom-based Quantum Computer

November 23, 2022

Last month, QuEra Computing began providing access to its 256-qubit, neutral atom-based quantum system, Aquila, from Amazon Braket. Founded in 2018, and built on technology developed at Harvard and MIT, QuEra, is one of Read more…

Quantum Riches and Hardware Diversity Are Discouraging Collaboration

November 28, 2022

Quantum computing is viewed as a technology for generations, and the spoils for the winners are huge, but the diversity of technology is discouraging collaborat Read more…

2022 HPC Road Trip: Los Alamos

November 23, 2022

With SC22 in the rearview mirror, it’s time to get back to the 2022 Great American Supercomputing Road Trip. To refresh everyone’s memory, I jumped in the c Read more…

QuEra’s Quest: Build a Flexible Neutral Atom-based Quantum Computer

November 23, 2022

Last month, QuEra Computing began providing access to its 256-qubit, neutral atom-based quantum system, Aquila, from Amazon Braket. Founded in 2018, and built o Read more…

SC22’s ‘HPC Accelerates’ Plenary Stresses Need for Collaboration

November 21, 2022

Every year, SC has a theme. For SC22 – held last week in Dallas – it was “HPC Accelerates”: a theme that conference chair Candace Culhane said reflected Read more…

Quantum – Are We There (or Close) Yet? No, Says the Panel

November 19, 2022

For all of its politeness, a fascinating panel on the last day of SC22 – Quantum Computing: A Future for HPC Acceleration? – mostly served to illustrate the Read more…

RISC-V Is Far from Being an Alternative to x86 and Arm in HPC

November 18, 2022

One of the original RISC-V designers this week boldly predicted that the open architecture will surpass rival chip architectures in performance. "The prediction is two or three years we'll be surpassing your architectures and available performance with... Read more…

Gordon Bell Special Prize Goes to LLM-Based Covid Variant Prediction

November 17, 2022

For three years running, ACM has awarded not only its long-standing Gordon Bell Prize (read more about this year’s winner here!) but also its Gordon Bell Spec Read more…

2022 Gordon Bell Prize Goes to Plasma Accelerator Research

November 17, 2022

At the awards ceremony at SC22 in Dallas today, ACM awarded the 2022 ACM Gordon Bell Prize to a team of researchers who used four major supercomputers – inclu Read more…

Nvidia Shuts Out RISC-V Software Support for GPUs 

September 23, 2022

Nvidia is not interested in bringing software support to its GPUs for the RISC-V architecture despite being an early adopter of the open-source technology in its GPU controllers. Nvidia has no plans to add RISC-V support for CUDA, which is the proprietary GPU software platform, a company representative... Read more…

RISC-V Is Far from Being an Alternative to x86 and Arm in HPC

November 18, 2022

One of the original RISC-V designers this week boldly predicted that the open architecture will surpass rival chip architectures in performance. "The prediction is two or three years we'll be surpassing your architectures and available performance with... Read more…

AWS Takes the Short and Long View of Quantum Computing

August 30, 2022

It is perhaps not surprising that the big cloud providers – a poor term really – have jumped into quantum computing. Amazon, Microsoft Azure, Google, and th Read more…

Chinese Startup Biren Details BR100 GPU

August 22, 2022

Amid the high-performance GPU turf tussle between AMD and Nvidia (and soon, Intel), a new, China-based player is emerging: Biren Technology, founded in 2019 and headquartered in Shanghai. At Hot Chips 34, Biren co-founder and president Lingjie Xu and Biren CTO Mike Hong took the (virtual) stage to detail the company’s inaugural product: the Biren BR100 general-purpose GPU (GPGPU). “It is my honor to present... Read more…

Tesla Bulks Up Its GPU-Powered AI Super – Is Dojo Next?

August 16, 2022

Tesla has revealed that its biggest in-house AI supercomputer – which we wrote about last year – now has a total of 7,360 A100 GPUs, a nearly 28 percent uplift from its previous total of 5,760 GPUs. That’s enough GPU oomph for a top seven spot on the Top500, although the tech company best known for its electric vehicles has not publicly benchmarked the system. If it had, it would... Read more…

AMD Thrives in Servers amid Intel Restructuring, Layoffs

November 12, 2022

Chipmakers regularly indulge in a game of brinkmanship, with an example being Intel and AMD trying to upstage one another with server chip launches this week. But each of those companies are in different positions, with AMD playing its traditional role of a scrappy underdog trying to unseat the behemoth Intel... Read more…

JPMorgan Chase Bets Big on Quantum Computing

October 12, 2022

Most talk about quantum computing today, at least in HPC circles, focuses on advancing technology and the hurdles that remain. There are plenty of the latter. F Read more…

Using Exascale Supercomputers to Make Clean Fusion Energy Possible

September 2, 2022

Fusion, the nuclear reaction that powers the Sun and the stars, has incredible potential as a source of safe, carbon-free and essentially limitless energy. But Read more…

Leading Solution Providers

Contributors

UCIe Consortium Incorporates, Nvidia and Alibaba Round Out Board

August 2, 2022

The Universal Chiplet Interconnect Express (UCIe) consortium is moving ahead with its effort to standardize a universal interconnect at the package level. The c Read more…

Nvidia, Qualcomm Shine in MLPerf Inference; Intel’s Sapphire Rapids Makes an Appearance.

September 8, 2022

The steady maturation of MLCommons/MLPerf as an AI benchmarking tool was apparent in today’s release of MLPerf v2.1 Inference results. Twenty-one organization Read more…

Not Just Cash for Chips – The New Chips and Science Act Boosts NSF, DOE, NIST

August 3, 2022

After two-plus years of contentious debate, several different names, and final passage by the House (243-187) and Senate (64-33) last week, the Chips and Science Act will soon become law. Besides the $54.2 billion provided to boost US-based chip manufacturing, the act reshapes US science policy in meaningful ways. NSF’s proposed budget... Read more…

SC22 Unveils ACM Gordon Bell Prize Finalists

August 12, 2022

Courtesy of the schedule for the SC22 conference, we now have our first glimpse at the finalists for this year’s coveted Gordon Bell Prize. The Gordon Bell Pr Read more…

Intel Is Opening up Its Chip Factories to Academia

October 6, 2022

Intel is opening up its fabs for academic institutions so researchers can get their hands on physical versions of its chips, with the end goal of boosting semic Read more…

AMD Previews 400 Gig Adaptive SmartNIC SOC at Hot Chips

August 24, 2022

Fresh from finalizing its acquisitions of FPGA provider Xilinx (Feb. 2022) and DPU provider Pensando (May 2022) ), AMD previewed what it calls a 400 Gig Adaptive smartNIC SOC yesterday at Hot Chips. It is another contender in the increasingly crowded and blurry smartNIC/DPU space where distinguishing between the two isn’t always easy. The motivation for these device types... Read more…

AMD’s Genoa CPUs Offer Up to 96 5nm Cores Across 12 Chiplets

November 10, 2022

AMD’s fourth-generation Epyc processor line has arrived, starting with the “general-purpose” architecture, called “Genoa,” the successor to third-gen Eypc Milan, which debuted in March of last year. At a launch event held today in San Francisco, AMD announced the general availability of the latest Epyc CPUs with up to 96 TSMC 5nm Zen 4 cores... Read more…

Google Program to Free Chips Boosts University Semiconductor Design

August 11, 2022

A Google-led program to design and manufacture chips for free is becoming popular among researchers and computer enthusiasts. The search giant's open silicon program is providing the tools for anyone to design chips, which then get manufactured. Google foots the entire bill, from a chip's conception to delivery of the final product in a user's hand. Google's... Read more…

  • arrow
  • Click Here for More Headlines
  • arrow
HPCwire