Thursday, December 8, 2011
LOFAR on the Map of GPU Computing.
Of possible interest to those involved in LOFAR is this map of the GPU (Graphical Processing Unit) computing usage for research. The LOFAR Epoch of Reionization Key Science project makes it onto the map in Groningen where GPUs are being used for signal and image processing of the data generated by LOFAR for this experiment.
Friday, December 2, 2011
LOFAR Session at NAM 2012
The UK National Astronomy Meeting, to be held in Manchester in March 2012 will host a session on "LOFAR, the LOw Frequency ARray: Ongoing Developments and Early Results" preliminarily scheduled for 10am on Thursday 29th March 2012.
This session will be run by LOFAR scientists, Mario M. Bisi (Institute of Mathematics and Physics, Aberystwyth University, UK), Michael W. Wise (Astronomy Group, ASTRON (Netherlands Institute for Radio Astronomy), The Netherlands), Philip Best (School of Physics and Astronomy, University of Edinburgh, UK), Benjamin W. Stappers (The School of Physics and Astronomy, The University of Manchester, UK), Peter T. Gallagher (School of Physics, Trinity College Dublin, Ireland), and and Marcus Braggen (School of Engineering & Science, Jacobs University, Germany), the session has the following abstract:
This session will be run by LOFAR scientists, Mario M. Bisi (Institute of Mathematics and Physics, Aberystwyth University, UK), Michael W. Wise (Astronomy Group, ASTRON (Netherlands Institute for Radio Astronomy), The Netherlands), Philip Best (School of Physics and Astronomy, University of Edinburgh, UK), Benjamin W. Stappers (The School of Physics and Astronomy, The University of Manchester, UK), Peter T. Gallagher (School of Physics, Trinity College Dublin, Ireland), and and Marcus Braggen (School of Engineering & Science, Jacobs University, Germany), the session has the following abstract:
"The LOw Frequency ARray (LOFAR) is a next-generation radio telescope which utilises thousands of stationary dipoles and tiles to observe celestial phenomena. This session is intended for the broader community to learn about the developments of LOFAR including updates on the status of the system and its current scientific capabilities, the early science results from all aspects of its applications and operation, as well as the upcoming opportunities for general "open skies" observing.With its dense core array and interferometric baselines of up to 1,000 km, LOFAR has the potential to achieve both unparalleled sensitivity (sub-mJy) and spatial resolution (sub-arcsecond) in this largely-unexplored low-frequency radio regime (~10 MHz to 250 MHz). Areas of science which can be explored with LOFAR include, but are not limited to, the Epoch of Re-ionisation (EoR), Pulsars, Transients, Cosmic Rays, Magnetism, deep Extra-Galactic Surveys, and also studies of the Sun, the Solar Atmosphere/Solar Wind, Space Weather, and the Earth's Ionosphere. In summary, the session is designed for showcasing LOFAR's scientific potential and progress to date. The session should include a LOFAR overview and specifics of LOFAR commissioning, current status, scientific and technical capabilities, and upcoming opportunities. We solicit contributions from any/all of the science areas that will be covered by the observational capabilities of LOFAR."
Monday, November 14, 2011
Spectacular view of the LOFAR Core
Check out this ASTRON image of the day from last month with spectacular aerial images of the LOFAR core region.
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| ASTRON image of the day from 12th Oct 2010. Please visit the link for more details. |
Friday, November 11, 2011
Everyone's Favourite Image of Chilbolton - reflected in the sunglasses
I constantly get asked for this image, so here's a post just about it. Chilbolton reflected in the sunglasses of ICG member Dr. Edd Edmondson as photographed by former ICG member Dr. Chiara Tonini.
Album of all of Chiara's pictures from the LBA installaton.
Album of all of Chiara's pictures from the LBA installaton.
Wednesday, November 9, 2011
Tonight at Intech - LOFAR-UK Talk
"Digital Static: Hampshire's new world-class radio telescope" this evening as part of the Intech Science Centre's Space Lecture Series.
Tickets are still available according to @INTECH_Science this morning.
Monday, October 3, 2011
LOFAR-UK Observes the Active Sun
Over the last few days, our Sun has been very active. Apart from the dedicated solar instruments monitoring this activity, we've also been able to observe it with the LOFAR radio telescope at Chilbolton. This facility comprises two fields of small antennas, that link together to perform as a powerful VHF radio telescope. Although it is also possible to link the LOFAR system in the UK with others across Europe, on the 28th September 2011, it was operating independently.
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| All Sky Image taken from LOFAR-UK, 28.09.11 (Credit: ASTRON/STFC) |
At 16:10 UTC (= 5:10 pm local time), LOFAR Chilbolton was used to record an 'all-sky' image. Even before calibration and analysis, this image shows the bright objects in the radio sky. On the left hand side of the image there are, from top to bottom, Cassiopeia-A (a supernova remnant), Cygnus-A (a radio-galaxy) and the broader region which is the centre of our own Galaxy. However, to the right of the image, the Sun can be seen with extremely strong intensity, just before it set below the western horizon.
Menno Norden (ASTRON) and Derek McKay-Bukowski (RAL Space)
(Press release from RAL; KAIRA blog post.).
Tuesday, September 20, 2011
Welcome to Swedish LOFAR; making LOFAR even bigger
The Swedish LOFAR station in Onsala is to be opened on Monday, joining stations all over Europe to make the International LOFAR Telescope even bigger. Below is the press release from Onsala Space Observatory.
Swedes Make World's Largest Telescope Bigger
On Monday, Sweden’s Minister for Education and Research, Jan Björklund, will open Onsala Space Observatory’s newest telescope. Part of LOFAR, the world’s largest radio telescope, it is the biggest telescope built in Sweden in the last 35 years. LOFAR will map radio signals which have travelled across the universe for billions of years. Scientists expect LOFAR to answer questions about the nature of our universe.
LOFAR (LOw Frequency ARray) is a new kind of radio telescope. It can see radio waves with low frequencies, similar to those that give us FM radio. Rather than collecting signals from individual radio sources, LOFAR continuously monitors large swathes of sky. Lofar is more sensitive to the longest observable radio waves than any other telescope. It can see many billions of light years out into space, back to the time before the first stars formed, a few hundred million years after the Big Bang.
The 192 new radio antennas at Onsala’s LOFAR station look modest enough. But the radio signals they collect will be linked together with 47 similar stations over the whole of Europe, and sent over Internet to a central supercomputer in the Netherlands. This means huge amount of data traffic: the equivalent of over 7000 DVD films per day just from the Swedish station. The telescope creates images of the sky using a unique combination of computer power and innovative software. Together, LOFAR’s antennas form a single telescope with a diameter of 1300 kilometres.
Hans Olofsson is director of Onsala Space Observatory and professor at Chalmers.
“For astronomers like me, LOFAR means that we can see far enough to be able to study the universe’s early history. We want to discover traces of the clouds of hydrogen gas that filled the universe 13 billion years ago, and find out just why today’s universe looks the way it does,” he says.
Scientists expect LOFAR to discover hitherto unknown types of astronomical objects. It will also investigate the environments of black holes, find extreme galaxies and pulsars, and search for planets around other stars.
Onsala Space Observatory was founded in 1949 and was led for three decades by Professor Olof Rydbeck. Since its inception the observatory has contributed to the forefront of research in radio astronomy, both through interpretation of observations and developing new technology. Since 1990 the observatory is the Swedish National Facility for Radio Astronomy. It is financed by the Swedish Research Council and operated by Chalmers.
“Onsala Space Observatory has always been a prominent centre for radio astronomy research, and now it’s part of the world’s most exciting radio telescope. In the future we plan to develop the technology that makes Lofar unique when we build the next generation of radio telescopes, says René Vermeulen of Astron, the Netherlands national institute for radio astronomy, and director of the International LOFAR Telescope.
LOFAR is one of many examples of Onsala Space Observatory’s increasing involvement in international projects. Chalmers is one of three international partners in the submillimetre telescope Apex in Chile, which recently discovered hydrogen peroxide in space. Last winter Chalmers delivered sensitive new receivers to the Alma Observatory, the world’s largest astronomy project, currently being built in Chile’s Atacama desert. The observatory is also planning for the radio observatory SKA (Square Kilometre Array), to be built in Australia or South Africa, in which LOFAR’s new technology will be developed even further. SKA is expected to give answers about the origins of both the universe itself and life in space.
“Space research is also critical for our understanding of the earth and its climate, and it invariably leads to spin-off effects. International facilities like Lofar foster strong cooperation across both scientific and cultural borders,” says Karin Markides, President of Chalmers.
“I believe LOFAR in particular will have great importance for our ability to handle very large amounts of data,” she adds.
During the inauguration ceremony at Onsala Space Observatory on Monday Minister of Education and Research Jan Björklund will take some of the first ever images of the sky with the Swedish LOFAR station. He will also visit the station together with around a hundred invited guests.
For more information see here.
Swedes Make World's Largest Telescope Bigger
 |
| The 192 radio antennas that make up Onsala’s Lofar station cover an area the size of a soccer pitch. Credit: Onsala Space Observatory/Leif Helldner |
On Monday, Sweden’s Minister for Education and Research, Jan Björklund, will open Onsala Space Observatory’s newest telescope. Part of LOFAR, the world’s largest radio telescope, it is the biggest telescope built in Sweden in the last 35 years. LOFAR will map radio signals which have travelled across the universe for billions of years. Scientists expect LOFAR to answer questions about the nature of our universe.
LOFAR (LOw Frequency ARray) is a new kind of radio telescope. It can see radio waves with low frequencies, similar to those that give us FM radio. Rather than collecting signals from individual radio sources, LOFAR continuously monitors large swathes of sky. Lofar is more sensitive to the longest observable radio waves than any other telescope. It can see many billions of light years out into space, back to the time before the first stars formed, a few hundred million years after the Big Bang.
The 192 new radio antennas at Onsala’s LOFAR station look modest enough. But the radio signals they collect will be linked together with 47 similar stations over the whole of Europe, and sent over Internet to a central supercomputer in the Netherlands. This means huge amount of data traffic: the equivalent of over 7000 DVD films per day just from the Swedish station. The telescope creates images of the sky using a unique combination of computer power and innovative software. Together, LOFAR’s antennas form a single telescope with a diameter of 1300 kilometres.
Hans Olofsson is director of Onsala Space Observatory and professor at Chalmers.
“For astronomers like me, LOFAR means that we can see far enough to be able to study the universe’s early history. We want to discover traces of the clouds of hydrogen gas that filled the universe 13 billion years ago, and find out just why today’s universe looks the way it does,” he says.
Scientists expect LOFAR to discover hitherto unknown types of astronomical objects. It will also investigate the environments of black holes, find extreme galaxies and pulsars, and search for planets around other stars.
Onsala Space Observatory was founded in 1949 and was led for three decades by Professor Olof Rydbeck. Since its inception the observatory has contributed to the forefront of research in radio astronomy, both through interpretation of observations and developing new technology. Since 1990 the observatory is the Swedish National Facility for Radio Astronomy. It is financed by the Swedish Research Council and operated by Chalmers.
“Onsala Space Observatory has always been a prominent centre for radio astronomy research, and now it’s part of the world’s most exciting radio telescope. In the future we plan to develop the technology that makes Lofar unique when we build the next generation of radio telescopes, says René Vermeulen of Astron, the Netherlands national institute for radio astronomy, and director of the International LOFAR Telescope.
LOFAR is one of many examples of Onsala Space Observatory’s increasing involvement in international projects. Chalmers is one of three international partners in the submillimetre telescope Apex in Chile, which recently discovered hydrogen peroxide in space. Last winter Chalmers delivered sensitive new receivers to the Alma Observatory, the world’s largest astronomy project, currently being built in Chile’s Atacama desert. The observatory is also planning for the radio observatory SKA (Square Kilometre Array), to be built in Australia or South Africa, in which LOFAR’s new technology will be developed even further. SKA is expected to give answers about the origins of both the universe itself and life in space.
“Space research is also critical for our understanding of the earth and its climate, and it invariably leads to spin-off effects. International facilities like Lofar foster strong cooperation across both scientific and cultural borders,” says Karin Markides, President of Chalmers.
“I believe LOFAR in particular will have great importance for our ability to handle very large amounts of data,” she adds.
During the inauguration ceremony at Onsala Space Observatory on Monday Minister of Education and Research Jan Björklund will take some of the first ever images of the sky with the Swedish LOFAR station. He will also visit the station together with around a hundred invited guests.
For more information see here.
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