News tagged with gamma waves
Astrophysicists discover new heating source in cosmological structure formation
(Phys.org) -- So far, astrophysicists thought that super-massive black holes can only influence their immediate surroundings. A collaboration of scientists at the Heidelberg Institute for Theoretical Studies ...
May 15, 2012 |
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A supernova cocoon breakthrough
(Phys.org) -- Observations with NASA's Chandra X-ray Observatory have provided the first X-ray evidence of a supernova shock wave breaking through a cocoon of gas surrounding the star that exploded. This discovery ...
May 15, 2012 |
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NASA's Fermi finds youngest millisecond pulsar, 100 pulsars to date
An international team of scientists using NASA's Fermi Gamma-ray Space Telescope has discovered a surprisingly powerful millisecond pulsar that challenges existing theories about how these objects form.
Nov 04, 2011 |
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WISE mission captures black hole's wildly flaring jet
(PhysOrg.com) -- Astronomers using NASA's Wide-field Infrared Survey Explorer (WISE) have captured rare data of a flaring black hole, revealing new details about these powerful objects and their blazing jets. ...
Sep 21, 2011 |
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Crab nebula: The crab in action & the case of the dog that did not bark
A new movie from NASA's Chandra X-ray Observatory shows a sequence of Chandra images of the Crab Nebula, taken over an interval of seven months. Dramatic variations are seen, including the expansion of a ring ...
May 16, 2011 |
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Nuclear photonics: Gamma rays search for concealed nuclear threats
Gamma rays are the most energetic type of light wave and can penetrate through lead and other thick containers. A powerful new source of gamma rays will allow officials to search for hidden reactor fuel/nuclear bomb material.
May 02, 2011 |
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Fermi detects gamma-rays from exploding nova
Using the Large Area Telescope (LAT) onboard NASA's Fermi Gamma-ray Space Telescope satellite, astronomers have detected gamma rays from a nova for the first time, a finding that surprises both observers and ...
Aug 23, 2010 |
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Fermi maps an active galaxy's 'smokestack plumes'
If our eyes could see radio waves, the nearby galaxy Centaurus A (Cen A) would be one of the biggest and brightest objects in the sky, nearly 20 times the apparent size of a full moon. What we can't see when ...
Apr 01, 2010 |
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Scientists reveal Milky Way's magnetic attraction
(PhysOrg.com) -- An international research project involving the University of Adelaide has revealed that the magnetic field in the centre of the Milky Way is at least 10 times stronger than the rest of the ...
Jan 06, 2010 |
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Astronomers get new tools for gravitational-wave detection
Teamwork between gamma-ray and radio astronomers has produced a breakthrough in finding natural cosmic tools needed to make the first direct detections of the long-elusive gravitational waves predicted by Albert Einstein ...
Jan 05, 2010 |
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Fermi large area telescope points the way to new millisecond pulsars
The discovery of seventeen new millisecond pulsars was announced today at the American Astronomical Society Meeting by scientists from the Naval Research Laboratory (NRL) Space Science Division and a team ...
Jan 05, 2010 |
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Fermi Telescope Caps First Year With Glimpse of Space-Time (w/ Video)
During its first year of operations, NASA's Fermi Gamma Ray Space Telescope mapped the extreme sky with unprecedented resolution and sensitivity. It captured more than one thousand discrete sources of gamma ...
Oct 28, 2009 |
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Blast from the Past Gives Clues About Early Universe
(PhysOrg.com) -- Astronomers using the National Science Foundation's Very Large Array (VLA) radio telescope have gained tantalizing insights into the nature of the most distant object ever observed in the ...
Oct 28, 2009 |
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New technique improves estimates of pulsar ages
Astronomers at the University of California, Santa Cruz, have developed a new technique to determine the ages of millisecond pulsars, the fastest-spinning stars in the universe.
Jun 09, 2009 |
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Making waves in the brain: Researchers use lasers to induce gamma brain waves in mice
Scientists have studied high-frequency brain waves, known as gamma oscillations, for more than 50 years, believing them crucial to consciousness, attention, learning and memory. Now, for the first time, MIT researchers and ...
Medicine & Health / Neuroscience
Apr 26, 2009 |
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