Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Wireless Network Boosts Supernova Search to Stellar First Year

08.01.2003


In results presented this week at the 2003 meeting of the American Astronomical Society (AAS) in Seattle, astrophysicist Greg Aldering and colleagues report that their supernova factory project has discovered an unprecedented 34 new supernovae in its first year. The accomplishment would not have been possible without the National Science Foundation (NSF) - supported high performance wireless network link to Palomar Observatory.

"This has been the best rookie year for any supernova search project," Aldering said. The Nearby Supernova Factory, led by Aldering at Lawrence Berkeley National Laboratory (LBNL), is seeking out 300 new exploding stars to be used as standard distance markers in future studies to measure the change in the universe’s rate of expansion and thereby determine its dark energy content.

"We’re completely dependent on the wireless network because we have to sift through huge amounts of images," Aldering said, "and we need those images as soon as possible after they’re seen by the telescope."

The High Performance Wireless Research and Education Network (HPWREN), a project of the University of California, San Diego, provides Caltech’s Palomar Observatory with a high-speed link to the Internet. The link made it possible to amass the quarter million images-six terabytes of compressed data-analyzed by Aldering and the Nearby Supernova Factory team in 2002.

Funded by the National Science Foundation, the federal agency that supports basic science and engineering research and infrastructure, HPWREN makes it possible to send images almost instantly from the 48-inch Oschin Telescope at Palomar’s remote mountaintop site to a storage facility at the Department of Energy’s National Energy Research Scientific Computing Center (NERSC), located at LBNL in Berkeley, CA. Each image is 16 megapixels, and three images are captured every 30 seconds. Fifty gigabytes, or nearly 80 CD-ROMs’ worth, of raw data crosses the HPWREN link nightly.

Thanks to HPWREN, the project is likely to find many more supernovae in subsequent years, allowing the study of rare supernovae with unusual properties, which can better reveal how supernovae work, according to Aldering. The eventual collection of supernovae will be made available to the astronomy community.

"Greg’s supernova findings clearly illustrate the benefits of astronomers and computer network researchers partnering as a team, and we are really pleased to see how much high-performance networks enable our collaborating scientists and educators," said HPWREN principal investigator Hans-Werner Braun of UCSD’s San Diego Supercomputer Center. "We hope to continue our work together and intend to enhance the data communications bandwidth even more, as Greg and others have indicated that they can make even more great discoveries if they have more bandwidth available to them."

The supernova factory pipeline starts with images being collected by the NASA-funded Near-Earth Asteroid Tracking (NEAT) project. The images are sent across the 45-megabit-per-second HPWREN wireless link and on to LBNL, where NERSC’s computers process the images to discover and rank supernova candidates.

Eventually the pipeline will automate the entire discovery and confirmation process. Once a supernova is discovered from the Palomar images, follow-up observations will be obtained by remote control of the University of Hawaii’s 88-inch telescope on Mauna Kea. The Hawaii observations will be shipped by Internet for image processing at a supercomputing center in France and then sent to NERSC for analysis.

"If we can do this quickly enough, we can even ask the Hawaii and Palomar telescopes to get more data, say, for a very rare type of transient object," Aldering said. "This is all supposed to happen automatically while we are asleep, although it will take a while to reach a reliable level of automation."

The HPWREN team, led by Braun and Frank Vernon at the Scripps Institution of Oceanography, is prototyping and evaluating a non-commercial, high-performance, wide-area wireless network. The network includes backbone nodes on the UCSD campus and a number of hard-to-reach areas in San Diego County, including the Palomar and Mt. Laguna observatories, Native American communities, and several remote science field stations.

The poster on the Nearby Supernova Factory will be presented at the AAS meeting in Seattle during Session 56, "Supernovae Potpourri," on Jan. 7, 2003, 9:20 a.m. - 6:30 p.m.

The National Science Foundation is an independent federal agency that supports fundamental research and education across all fields of science and engineering, with an annual budget of nearly $5 billion. NSF funds reach all 50 states through grants to nearly 2,000 universities and institutions. Each year, NSF receives about 30,000 competitive requests for funding, and makes about 10,000 new funding awards. NSF also awards over $200 million in professional and service contracts yearly.



Media contact:
David Hart
(703) 292-8070, dhart@nsf.gov


Program contact:
Tom Greene
(703) 292-8948, tgreene@nsf.gov

Julie A. Smith | NSF
Further information:
http://hpwren.ucsd.edu/
http://snfactory.lbl.gov/
http://neat.jpl.nasa.gov/

More articles from Physics and Astronomy:

nachricht Return of the Blob: Surprise link found to edge turbulence in fusion plasma
27.05.2020 | DOE/Princeton Plasma Physics Laboratory

nachricht NIST researchers boost microwave signal stability a hundredfold
26.05.2020 | National Institute of Standards and Technology (NIST)

All articles from Physics and Astronomy >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Biotechnology: Triggered by light, a novel way to switch on an enzyme

In living cells, enzymes drive biochemical metabolic processes enabling reactions to take place efficiently. It is this very ability which allows them to be used as catalysts in biotechnology, for example to create chemical products such as pharmaceutics. Researchers now identified an enzyme that, when illuminated with blue light, becomes catalytically active and initiates a reaction that was previously unknown in enzymatics. The study was published in "Nature Communications".

Enzymes: they are the central drivers for biochemical metabolic processes in every living cell, enabling reactions to take place efficiently. It is this very...

Im Focus: New double-contrast technique picks up small tumors on MRI

Early detection of tumors is extremely important in treating cancer. A new technique developed by researchers at the University of California, Davis offers a significant advance in using magnetic resonance imaging to pick out even very small tumors from normal tissue. The work is published May 25 in the journal Nature Nanotechnology.

researchers at the University of California, Davis offers a significant advance in using magnetic resonance imaging to pick out even very small tumors from...

Im Focus: I-call - When microimplants communicate with each other / Innovation driver digitization - "Smart Health“

Microelectronics as a key technology enables numerous innovations in the field of intelligent medical technology. The Fraunhofer Institute for Biomedical Engineering IBMT coordinates the BMBF cooperative project "I-call" realizing the first electronic system for ultrasound-based, safe and interference-resistant data transmission between implants in the human body.

When microelectronic systems are used for medical applications, they have to meet high requirements in terms of biocompatibility, reliability, energy...

Im Focus: When predictions of theoretical chemists become reality

Thomas Heine, Professor of Theoretical Chemistry at TU Dresden, together with his team, first predicted a topological 2D polymer in 2019. Only one year later, an international team led by Italian researchers was able to synthesize these materials and experimentally prove their topological properties. For the renowned journal Nature Materials, this was the occasion to invite Thomas Heine to a News and Views article, which was published this week. Under the title "Making 2D Topological Polymers a reality" Prof. Heine describes how his theory became a reality.

Ultrathin materials are extremely interesting as building blocks for next generation nano electronic devices, as it is much easier to make circuits and other...

Im Focus: Rolling into the deep

Scientists took a leukocyte as the blueprint and developed a microrobot that has the size, shape and moving capabilities of a white blood cell. Simulating a blood vessel in a laboratory setting, they succeeded in magnetically navigating the ball-shaped microroller through this dynamic and dense environment. The drug-delivery vehicle withstood the simulated blood flow, pushing the developments in targeted drug delivery a step further: inside the body, there is no better access route to all tissues and organs than the circulatory system. A robot that could actually travel through this finely woven web would revolutionize the minimally-invasive treatment of illnesses.

A team of scientists from the Max Planck Institute for Intelligent Systems (MPI-IS) in Stuttgart invented a tiny microrobot that resembles a white blood cell...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

Dresden Nexus Conference 2020: Same Time, Virtual Format, Registration Opened

19.05.2020 | Event News

Aachen Machine Tool Colloquium AWK'21 will take place on June 10 and 11, 2021

07.04.2020 | Event News

International Coral Reef Symposium in Bremen Postponed by a Year

06.04.2020 | Event News

 
Latest News

New 5G switch provides 50 times more energy efficiency than currently exists

27.05.2020 | Information Technology

Return of the Blob: Surprise link found to edge turbulence in fusion plasma

27.05.2020 | Physics and Astronomy

Upwards with the “bubble shuttle”: How sea floor microbes get involved with methane reduction in the water column

27.05.2020 | Earth Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>