Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Death of massive star creates brightest burst ever seen

25.03.2008
Astronomers have found by far the most distant naked-eye object ever seen.

Gamma-Ray Bursts are the most powerful explosive events in the Universe. They occur in far-off galaxies and so are usually faint. But on the morning of March 19th 2008 the Swift satellite found a burst which was so bright it could have been seen without binoculars or a telescope even though it was seven thousand times further away than the Andromeda galaxy.

The burst was discovered by the Swift satellite on a fantastic day for GRB hunters. Swift typically finds only two a week; but for the first time Swift found five bursts within 24 hours. The second burst of the day is the new record holder. The enormous energy released in the explosion – brighter than the light from all of the stars in five million Milky Way Galaxies – was caused by the death of a massive star which collapsed to form a black hole.

Dr. Julian Osborne of the University of Leicester, lead investigator for the Swift UK Science Data Centre, said “It’s great to find so many GRBs in one day, and the discovery of the brightest burst ever seen will allow us to explore this incredible explosion in exquisite detail.”

The location of the burst was rapidly pinpointed using the UK-built X-ray and Optical cameras on Swift. Dr. Paul O’Brien, also of the University of Leicester and a member of the Swift Science Team said, “The explosion happened at a distance of over twenty billion light years from Earth. To detect a naked eye object from such a distance really is extraordinary.”

Astronomers around the world are now observing the decaying glow from this burst as it fades away. These include UK teams from the Universities of Leicester, Warwick and Hertfordshire using the Gemini-North Telescope in Hawaii and the Liverpool John Moores University using the Liverpool Telescope on La Palma in the Canary Islands.

Professor Nial Tanvir, of the University of Leicester, said: “Our Gemini observations allowed us to measure the distance to the GRB, and to investigate the behaviour of gas close to the burst as it was blasted by the energy of the explosion”.

Ather Mirza | alfa
Further information:
http://www.le.ac.uk

More articles from Physics and Astronomy:

nachricht A 100-year-old physics problem has been solved at EPFL
23.06.2017 | Ecole Polytechnique Fédérale de Lausanne

nachricht Quantum thermometer or optical refrigerator?
23.06.2017 | 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: Can we see monkeys from space? Emerging technologies to map biodiversity

An international team of scientists has proposed a new multi-disciplinary approach in which an array of new technologies will allow us to map biodiversity and the risks that wildlife is facing at the scale of whole landscapes. The findings are published in Nature Ecology and Evolution. This international research is led by the Kunming Institute of Zoology from China, University of East Anglia, University of Leicester and the Leibniz Institute for Zoo and Wildlife Research.

Using a combination of satellite and ground data, the team proposes that it is now possible to map biodiversity with an accuracy that has not been previously...

Im Focus: Climate satellite: Tracking methane with robust laser technology

Heatwaves in the Arctic, longer periods of vegetation in Europe, severe floods in West Africa – starting in 2021, scientists want to explore the emissions of the greenhouse gas methane with the German-French satellite MERLIN. This is made possible by a new robust laser system of the Fraunhofer Institute for Laser Technology ILT in Aachen, which achieves unprecedented measurement accuracy.

Methane is primarily the result of the decomposition of organic matter. The gas has a 25 times greater warming potential than carbon dioxide, but is not as...

Im Focus: How protons move through a fuel cell

Hydrogen is regarded as the energy source of the future: It is produced with solar power and can be used to generate heat and electricity in fuel cells. Empa researchers have now succeeded in decoding the movement of hydrogen ions in crystals – a key step towards more efficient energy conversion in the hydrogen industry of tomorrow.

As charge carriers, electrons and ions play the leading role in electrochemical energy storage devices and converters such as batteries and fuel cells. Proton...

Im Focus: A unique data centre for cosmological simulations

Scientists from the Excellence Cluster Universe at the Ludwig-Maximilians-Universität Munich have establised "Cosmowebportal", a unique data centre for cosmological simulations located at the Leibniz Supercomputing Centre (LRZ) of the Bavarian Academy of Sciences. The complete results of a series of large hydrodynamical cosmological simulations are available, with data volumes typically exceeding several hundred terabytes. Scientists worldwide can interactively explore these complex simulations via a web interface and directly access the results.

With current telescopes, scientists can observe our Universe’s galaxies and galaxy clusters and their distribution along an invisible cosmic web. From the...

Im Focus: Scientists develop molecular thermometer for contactless measurement using infrared light

Temperature measurements possible even on the smallest scale / Molecular ruby for use in material sciences, biology, and medicine

Chemists at Johannes Gutenberg University Mainz (JGU) in cooperation with researchers of the German Federal Institute for Materials Research and Testing (BAM)...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

Plants are networkers

19.06.2017 | Event News

Digital Survival Training for Executives

13.06.2017 | Event News

Global Learning Council Summit 2017

13.06.2017 | Event News

 
Latest News

Quantum thermometer or optical refrigerator?

23.06.2017 | Physics and Astronomy

A 100-year-old physics problem has been solved at EPFL

23.06.2017 | Physics and Astronomy

Equipping form with function

23.06.2017 | Information Technology

VideoLinks
B2B-VideoLinks
More VideoLinks >>>