Search results for ray sources
Resolving a galactic mystery
Apr 29, 2009 |
4.8 / 5 (19) |
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An extremely deep Chandra X-ray Observatory image of a region near the center of our Galaxy has resolved a long-standing mystery about an X-ray glow along the plane of the Galaxy. The glow in the region covered ...
A new X-ray spectroscopic tool for probing the interstellar medium
Mar 31, 2009 |
4.8 / 5 (5) |
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Astronomy & Astrophysics is publishing the first clear detection of signatures long sought in the spectra of X-ray astronomical sources. These signatures, the so-called EXAFS standing for "Extended X-ray ...
A Black Hole in Medusa's Hair
Mar 11, 2009 |
4.6 / 5 (7) |
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This composite image of the Medusa galaxy (also known as NGC 4194) shows X-ray data from NASA's Chandra X-ray Observatory in blue and optical light from the Hubble Space Telescope in orange. Located above ...
GLAST: The Challenge of Too Much New Data
May 22, 2007 |
4.3 / 5 (7) |
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The astrophysics community enthusiastically awaits the upcoming launch of the Gamma-ray Large Area Space Telescope (GLAST), the latest and most powerful gamma-ray telescope. But interpreting the huge amount of new data that ...
Fermi Large Area Telescope Reveals Pulsing Gamma-Ray Sources
Sep 22, 2009 |
4.7 / 5 (6) |
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(PhysOrg.com) -- Scientists at the Naval Research Laboratory Space Science Division and a team of international researchers have positively identified cosmic sources of gamma-ray emissions through the discovery ...
Fermi Telescope reveals a population of radio-quiet gamma-ray pulsars
Jul 02, 2009 |
4.9 / 5 (10) |
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(PhysOrg.com) -- A new class of pulsars detected by NASA's Fermi Gamma-ray Space Telescope is solving the mystery of previously unidentified gamma-ray sources and helping scientists understand the mechanisms ...
Galactic X-ray emissions originate from stars
May 05, 2009 |
4.9 / 5 (7) |
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(PhysOrg.com) -- A 25-year old astronomical mystery has been solved: Most of the diffuse X-ray emissions in the Milky Way do not originate from one single source but from so-called white dwarfs and from stars ...
Fermi Large Area Telescope reveals pulsing gamma-ray sources
Sep 09, 2009 |
4.6 / 5 (12) |
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Scientists at the Naval Research Laboratory (NRL) Space Science Division and a team of international researchers have positively identified cosmic sources of gamma-ray emissions through the discovery of 16 ...
GLAST Observatory reveals entire gamma-ray sky
Aug 26, 2008 |
4.8 / 5 (21) |
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(PhysOrg.com) -- NASA's newest space telescope is giving scientists their best look yet at the highest-energy gamma ray bursts generated by violent events in space. For Toby Burnett, a University of Washington ...
Integral expands our view of the gamma-ray sky
Feb 20, 2007 |
4.6 / 5 (22) |
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Integral's latest survey of the gamma-ray universe continues to change the way astronomers think of the high-energy cosmos. With over seventy percent of the sky now observed by Integral, astronomers have been ...
Chandra Lifts the Veil on Milky Way 'Hotspot'
Jan 23, 2008 |
3.9 / 5 (14) |
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NASA's Chandra X-ray Observatory is helping to demystify Westerlund 2, a young star cluster with an estimated age of about one- or two-million years. Heavily obscured by dust and gas, Westerlund 2 has been ...
Integral sees the Galactic centre playing hide and seek
Jan 18, 2007 |
3.8 / 5 (11) |
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ESA's gamma ray observatory Integral has caught the centre of our galaxy in a moment of rare quiet. A handful of the most energetic high-energy sources surrounding the black hole at the centre of the Galaxy ...
X-Ray Jets from Galaxies
Oct 19, 2009 |
4.5 / 5 (4) |
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(PhysOrg.com) -- Some dramatic galaxies eject gigantic, collimated jets of ionized gas millions of light-years long, powered by the massive black holes at their centers. The ionized jets are detected at radio ...
Peering into the Pillars of Creation
Feb 15, 2007 |
4.5 / 5 (15) |
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A new look at the famous "Pillars of Creation" with NASA’s Chandra X-ray Observatory has allowed astronomers to peer inside the dark columns of gas and dust. This penetrating view of the central region of ...
The MAGIC-II Telescope is ready to team up
Apr 15, 2009 |
4.5 / 5 (2) |
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(PhysOrg.com) -- Together with the MAGIC-I telescope, MAGIC-2 allows stereoscopic observations using these two largest gamma-ray telescopes. Astronomers can explore sources of very-high energy gamma rays. ...
