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All Articles Tagged As: x rays
It will be on board in 2012, when a Soyus-2 rocket carries an X-ray telescope into space to decode the nature of the universe's dark energy: an X-ray detector developed by the Max Planck Institute for Extraterrestrial Physics. Its challenging task is to detect the weak X-rays from celestial bodies, without being disturbed by the visible and UV light from billions of stars.
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 | Studies of one of the galaxy's most active black-hole binaries reveal a dramatic change that will help scientists better understand how these systems expel fast-moving particle jets. ...> Full Article |
 | An exciting new astrophysics mission led by NASA's Goddard Space Flight Center in Greenbelt, Md., will provide a revolutionary window into the universe. Named the Gravity and Extreme Magnetism Small Explorer (GEMS), the satellite will be the first to systematically measure the polarization of cosmic X-ray sources. ...> Full Article |
 | Southwest Research Institute has received confirmation from NASA Headquarters that the Magnetospheric Multiscale misson has been approved to begin its implementation phase. MMS will perform a definitive investigation of one of the most basic and important physical processes in the universe -- magnetic reconnection. The mission is scheduled to launch in August 2014. ...> Full Article |
 | The joint Japan-US Suzaku mission is providing new insight into how assemblages of thousands of galaxies pull themselves together. For the first time, Suzaku has detected X-ray-emitting gas at a cluster's outskirts, where a billion-year plunge to the center begins. ...> Full Article |
New radio surveys could turn up many supernovas hidden within gas and dust
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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 by the Chandra image was discovered to be caused by hundreds of point-like X-ray sources, implying that the glow along the plane of the Galaxy is due to millions of such sources. ...> Full Article |
 | The first mirror segment that will fly on the James Webb Space Telescope, built by Northrop Grumman Corporation, has completed its first series of cryogenic temperature tests in the X-ray and Cryogenic Facility at the Marshall Space Flight Center in Huntsville, Ala. ...> Full Article |
 | A small, dense object only twelve miles in diameter is responsible for this beautiful X-ray nebula that spans 150 light years. At the center of this image made by NASA's Chandra X-ray Observatory is a very young and powerful pulsar, known as PSR B1509-58, or B1509 for short. This image is being unveiled as part of the "Around the World in 80 Telescopes" webcast as part of the International Year of Astronomy 2009. ...> Full Article |
 | Astronomy & Astrophysics is publishing the first clear detection of signatures long sought in the spectra of X-ray astronomical sources, the so-called EXAFS signatures, standing for "Extended X-ray Absorption Fine Structure." EXAFS is a powerful tool for studying the structure of grains in the interstellar medium. It gives a more detailed picture of the composition and structure of amorphous grains in the ISM. ...> Full Article |
 | Object intermediate between normal supernovae and gamma-ray bursts found ...> Full Article |
 | While observing a sample of quasars with broad absorption line (BAL) in their spectra, researchers discovered that unlike most of BAL quasars, two of the observed do not show intrinsic X-ray absorption, indicating a different composition of matter in their outflows ...> Full Article |
 | Astronomers have discovered that our galaxy's central black hole let loose a powerful flare three centuries ago ...> Full Article |
 | When a white dwarf accretes matter from his larger companion star and after reaching a critical mass ejects it in an explosion a nova occurs. Soft X-rays from classical novae are especially interesting for astronomers: They reveal ongoing residual hydrogen burning after the explosion and so give evidence that some of the accreted material is left on the white dwarf surface after the ejection. In this way the long-term evolution of the white dwarf in a binary system can be studied, for example to answer the question if the nova will later transform into a type Ia supernova, the most luminous supernova type. ...> Full Article |
A University of British Columbia astronomer with an international team has discovered the largest structures of dark matter ever seen. Measuring 270 million light-years across, these dark matter structures criss-cross the night sky, each spanning an area that is eight times larger than the full moon.
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 | A team of astronomers has discovered a neutron star emitting an extended stream of powerful X rays, marking the first time such an extended X-ray jet has been detected originating from any class of object other than black holes. "This discovery shows that the unusual properties of black holes, such as the lack of an actual surface,- may not be required to form powerful X-ray jets, as was previously thought," said Niel Brandt, professor of astronomy and astrophysics, and one of the scientists on the team that made the discovery with NASA's Chandra X-ray Observatory. ...> Full Article |
 | ESA's orbiting gamma-ray observatory, Integral, has made the first unambiguous discovery of highly energetic X-rays coming from a galaxy cluster. The find has shown the cluster to be a giant particle accelerator. ...> Full Article |
 | New observations from Suzaku, a joint Japanese Aerospace Exploration Agency (JAXA) and NASA X-ray observatory, have challenged scientists' conventional understanding of white dwarfs. Observers had believed white dwarfs were inert stellar corpses that slowly cool and fade away, but the new data tell a completely different story. ...> Full Article |
 | By working in synergy with a ground-based telescope array, the joint Japanese Aerospace Exploration Agency (JAXA)/NASA Suzaku X-ray observatory is shedding new light on some of the most energetic objects in our galaxy, but objects that remain shrouded in mystery. ...> Full Article |
 | A dwarf star with a surprisingly magnetic personality and a huge hot spot covering half its surface area is showing astronomers that life as a cool dwarf is not necessarily as simple and quiet as they once assumed. ...> Full Article |
 | Spectacular images and data from the Hinode mission have shed new light on the Sun's magnetic field and the origins of solar wind, which can disrupt power grids, satellites and communications on Earth. ...> Full Article |
 | Right in time for the festive season, ESA's XMM-Newton X-ray observatory has discovered a huge cloud of high-temperature gas resting in a spectacular nearby star-forming region, shaped somewhat like the silhouette of Santa Claus. ...> Full Article |
 | University of Leicester astrophysicist, Professor Martin Turner, is playing a major role in investigating the origins of the universe with the help of Xeus ...> Full Article |
Scientists have helped to design and create a pioneering instrument that will provide clues that could help to understand the origins of the elements in the Universe.
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A global project to map a distant strip of the universe is releasing its data today to scientists and the public to be used as part of Google Sky, a new feature of Google Earth.
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 | NASA has given the go-ahead to restart an astrophysics mission that will provide a greater capability for using high-energy Xrays to detect black holes than any existing instrument has. ...> Full Article |
 | NASA has announced its intent to restart a small scientific satellite mission it had canceled in 2006 because of funding pressures created in part by the shift in the agency's focus to manned missions to the moon and Mars. ...> Full Article |
 | A team of astronomers has discovered a number of stars forming in a section of our universe that is not normally conducive to the birth of stars. ...> Full Article |
 | Work aids understanding of violent universe ...> Full Article |
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