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Mysterious Signal May Be First Evidence Of Dark Matter

Mysterious Signal May Be First Evidence Of Dark Matter

Chuck Bednar for redOrbit.com – Your Universe Online An unusual photon emission in X-ray data originating from space could be evidence for the existence of a dark matter particle, researchers from the Swiss Federal Institute of Technology in...

Latest X-ray Stories

2014-12-21 23:00:23

A substantial percentage of patients who receive radiologist recommendations for chest computed tomography (CT) to evaluate abnormal findings on outpatient chest X-rays have clinically relevant

2014-12-19 12:25:28

DALLAS, December 19, 2014 /PRNewswire/ -- According to the new research report "X-Ray Detectors Market by Detector Type (Flat Panel, Computed Radiography, CCD, Line-Scan),

2014-12-19 08:22:24

NEW YORK, Dec.

ultraluminous X-ray sources
2014-12-12 05:02:00

At this time of year, there are lots of gatherings often decorated with festive lights. When galaxies get together, there is the chance of a spectacular light show as is the case with NGC 2207 and IC 2163

2014-12-10 08:28:53

LONDON, Dec.

protein snapshot
2014-12-10 06:59:01

An international research team that includes researchers from Lawrence Livermore National Laboratory has captured the highest-resolution protein snapshots ever taken with an X-ray laser, revealing how a key protein in a photosynthetic bacterium changes shape when hit by light.

2014-12-03 00:22:00

CHICAGO, Dec.

Invisible Infrared Light Can Be Seen By The Human Eye
2014-12-02 03:33:31

an international team of researchers has found that under certain conditions, the retina can sense infrared light

2014-12-01 08:31:15

Company will showcase broad range of medical imaging components at the 2014 annual meeting of the Radiological Society of North America (RSNA) CHICAGO, Dec.

2014-11-28 12:21:50

NEW YORK, Nov. 28, 2014 /PRNewswire/ -- The market for both conventional and digital x-ray systems is estimated to reach 7.9 billion dollars in 2014 according to Kalorama Information.


Latest X-ray Reference Libraries

45_690367cb500d467ab67d8f7503f9bc96
2010-09-07 17:13:57

Abell 2142, also called A2142 and located in the constellation Corona Borealis, is an X-ray luminous galaxy cluster. Its creation is due to the merger between two galaxy clusters. It is one of the largest objects in the universe and is six million light years across. It holds hundreds of galaxies and enough gas to make a thousand more. The pressure fronts in the system have been traced in detail and are relatively cool 50 million degree Celsius. The central region is embedded in large...

7_d6897d09acee1dd0c34d0fbf62ff7d0b2
2004-10-19 04:45:44

X-Ray Astronomy -- Although the more energetic X-rays (E > 30 keV) can penetrate the air at least for distances of a few meters (they would never have been detected and medical X-ray machines would not work if this was not the case) the Earth's atmosphere is thick enough that virtually none are able to penetrate from outer space all the way to the Earth's surface. X-rays in the 0.5 - 5 keV range, where most celestial sources give off the bulk of their energy, can be stopped by a few...

6_1446abbc556d86191d7944d6c5cf68052
2004-10-19 04:45:43

X-ray Burster -- X-ray bursters are a class of binary stars which are luminous in X-rays. They contain a neutron star and a low-mass companion star. The companion fills its Roche lobe and therefore the neutron star is accreting matter from it. The inflowing gas forms an accretion disk around the neutron star. Sometimes X-ray bursters show a sudden increase in their X-ray luminosity, called X-ray burst. All properties of the X-ray bursts can be explained assuming that they result from...

6_48ed76f36ff2f4ed0ad83a22964029652
2004-10-19 04:45:43

X-ray Binaries -- X-ray binaries are a class of binary stars that are very luminous in X-rays. The X-rays are produced by matter falling from one component (usually a relatively normal star) to the other component, which is a neutron star or a black hole. The infalling matter releases gravitational potential energy, up to several tens of per cent of its rest mass as X-rays. (Hydrogen fusion releases about 0.7 per cent of rest mass) X-ray binaries are further subdivided into...

6_f1577ee462b741c03ef6a7d23d2cd6905
2004-10-19 04:45:43

Variable Star -- Most stars are of nearly constant luminosity. Our own Sun is a good example which goes through practically no measurable variation in brightness. There are, however, stars which do vary in brightness, called variable stars. They fall into two main groups: Intrinsic variables These are stars which have intrinsic variations in brightness, that is the star itself gets brighter and dimmer. There are many types of intrinsic variables, the main types being: -- Mira...

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Word of the Day
tourtiere
  • a meat pie that is usually eaten at Christmas in Quebec
The word 'tourtiere' comes from the French tourte, or passenger pigeon.
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