For the first time the birth of a black hole have been filmed. Cameras of the "Pi of the Sky" project recorded this remarkable event with 4 minutes sequence of 10 seconds long images. In almost 20 seconds the object became so bright that it could be visible with the naked eye. Then it begun fading and in 4 minutes it became 100 times fainter. At that time the observation was taken over by larger telescopes.
The "Pi of the Sky" observation combined with the Swift satellite gamma-ray data for the first time confirmed with 10s precision that optical emission starts simultaneously with the gamma-ray burst. Optical observations during the first seconds of the burst are crucial to understand the mechanism of releasing such huge energy.
This observation was the proof of the novel concept of the "Pi of the Sky" project. Usually, optical emission from GRB is observed by telescopes listening to alerts from satellite gamma ray detectors. Signal distribution and turning the telescope take some time and the very first minute of the outburst cannot be observed. The principle of the "Pi of the Sky" project is different. The apparatus monitors continuously large fraction of the sky taking 10s exposures and detects optical flashes independently, while the satellite information confirms the origin of the flash. Currently "Pi of the Sky" apparatus consists of two cameras installed in Las Campanas Observatory. They cover 20x20 degree of the sky. To increase the chance of observing a GRB 32 new cameras are under construction. They will cover 1/3 of the visible sky continuously. Original plan was to cover pi (~3.14) steradians of the sky, giving the name for the project. The name recalls also the title of John Barrow book "Pi in the sky" arguing that the phenomena we observe are governed by physical laws expressed in mathematical language.
The “Pi of the Sky” project was inspired by Bohdan Paczynski, great astrophysicist who past away last year. He contributed a lot to the understanding of GRBs and he always claimed that small telescopes have large potential for sky surveys.
The project is conducted by collaboration of Polish research institutes: Soltan Institute for Nuclear Studies (Warsaw), Center for Theoretical Physics PAS (Warsaw), Warsaw University, Warsaw University of Technology, Space Research Center PAS (Warsaw), University of Cardinal Stefan Wyszynski (Warsaw), Pedagogical University of Cracow.
Neutron star merger directly observed for the first time
17.10.2017 | University of Maryland
Breaking: the first light from two neutron stars merging
17.10.2017 | American Association for the Advancement of Science
University of Maryland researchers contribute to historic detection of gravitational waves and light created by event
On August 17, 2017, at 12:41:04 UTC, scientists made the first direct observation of a merger between two neutron stars--the dense, collapsed cores that remain...
Seven new papers describe the first-ever detection of light from a gravitational wave source. The event, caused by two neutron stars colliding and merging together, was dubbed GW170817 because it sent ripples through space-time that reached Earth on 2017 August 17. Around the world, hundreds of excited astronomers mobilized quickly and were able to observe the event using numerous telescopes, providing a wealth of new data.
Previous detections of gravitational waves have all involved the merger of two black holes, a feat that won the 2017 Nobel Prize in Physics earlier this month....
Material defects in end products can quickly result in failures in many areas of industry, and have a massive impact on the safe use of their products. This is why, in the field of quality assurance, intelligent, nondestructive sensor systems play a key role. They allow testing components and parts in a rapid and cost-efficient manner without destroying the actual product or changing its surface. Experts from the Fraunhofer IZFP in Saarbrücken will be presenting two exhibits at the Blechexpo in Stuttgart from 7–10 November 2017 that allow fast, reliable, and automated characterization of materials and detection of defects (Hall 5, Booth 5306).
When quality testing uses time-consuming destructive test methods, it can result in enormous costs due to damaging or destroying the products. And given that...
Using a new cooling technique MPQ scientists succeed at observing collisions in a dense beam of cold and slow dipolar molecules.
How do chemical reactions proceed at extremely low temperatures? The answer requires the investigation of molecular samples that are cold, dense, and slow at...
Scientists from the Max Planck Institute of Quantum Optics, using high precision laser spectroscopy of atomic hydrogen, confirm the surprisingly small value of the proton radius determined from muonic hydrogen.
It was one of the breakthroughs of the year 2010: Laser spectroscopy of muonic hydrogen resulted in a value for the proton charge radius that was significantly...
17.10.2017 | Event News
10.10.2017 | Event News
10.10.2017 | Event News
17.10.2017 | Life Sciences
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