The Universe is home to numerous exotic and beautiful phenomena, some of which can generate almost inconceivable amounts of energy. Supermassive black holes, merging neutron stars, streams of hot gas moving close to the speed of light ... these are but a few of the marvels that generate gamma-ray radiation, the most energetic form of radiation, billions of times more energetic than the type of light visible to our eyes. What is happening to produce this much energy? What happens to the surrounding environment near these phenomena? How will studying these energetic objects add to our understanding of the very nature of the Universe and how it behaves?
The Fermi Gamma-ray Space Telescope, formerly GLAST, is opening this high-energy world to exploration and helping us answer these questions. With Fermi, astronomers at long last have a superior tool to study how black holes, notorious for pulling matter in, can accelerate jets of gas outward at fantastic speeds. Physicists are able to study subatomic particles at energies far greater than those seen in ground-based particle accelerators. And cosmologists are gaining valuable information about the birth and early evolution of the Universe.
For this unique endeavor, one that brings together the astrophysics and particle physics communities, NASA has teamed up with the U.S. Department of Energy and institutions in France, Germany, Japan, Italy and Sweden. General Dynamics was chosen to build the spacecraft. Fermi was launched June 11, 2008 at 12:05 pm EDT.
Filtered weekly photon files with diffuse response columns added are now available. These files may be useful for unbinned analysis where the calculation of diffuse responses can be computationally expensive. The files have been selected on zenith angle, energy range, event class (source) and event type (front+back) and so may not be suitable for all types of analysis.
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The Sixth International Fermi Symposium will be held in Washington DC, Nov 9-13, 2015. This meeting will focus on the scientific investigations and results enabled by Fermi, the mission and instrument characteristics, future opportunities, and coordinated observations and analyses. Abstract submission deadline is September 14, 2015. Registration deadline is October 31, 2015.
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There was a small glitch in Fermi-LAT data processing that has caused problems with a small amount of LAT data. This involved a problem with the detector calibration constants used in the LAT data processing pipeline that affected all the data corresponding to UTC 2015-07-27 19:04:46.642804 to 2015-07-30 11:03:18.085494. Click here for more details.
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