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Chandra Data Archive Comes To Life

Chandra Data Archive Comes To Life

Provided by Janet Anderson, Marshall Space Flight Center and Megan Watzke Chandra X-ray Center Every year, NASA’s Chandra X-ray Observatory looks at hundreds of objects throughout space to help expand our understanding of the Universe....

Latest X-ray Stories

2014-10-14 08:32:44

PALO ALTO, Calif., Oct. 14, 2014 /PRNewswire/ -- Varian Medical Systems (NYSE: VAR) announced today that its management will hold a year-end review for investors from 11:30 a.m. through 1:30 p.m. on November 5, 2014 at The Westin New York Grand Central, 212 E. 42(nd) St, New York. Management presentations will cover financial performance through fiscal year 2014, strategic initiatives, and growth opportunities in markets for oncology systems and x-ray imaging. Varian management...

2014-10-10 23:02:08

The Nuclear Spectroscopic Telescope Array, or NuSTAR, recently spotted the brightest pulsar ever recorded using X-ray optics designed by a team that included researchers from the Lawrence Livermore National Laboratory. Livermore, California (PRWEB) October 10, 2014 A supernova is the cataclysmic death of a star, but it seems its remnants shine on. Astronomers have found a pulsating, dead star beaming with the energy of about 10 million suns. This is the brightest pulsar -- a dense stellar...

2014-10-08 20:22:33

DUBLIN, October 8, 2014 /PRNewswire/ -- Research and Markets (http://www.researchandmarkets.com/research/lkh43q/radiation) have announced the addition of the "Radiation Detection Markets: 2014-2021" [http://www.researchandmarkets.com/research/lkh43q/radiation ] report to their offering. (Logo: http://photos.prnewswire.com/prnh/20130307/600769 ) This report follows on from successful reports on radiation detection equipment and radiation detection materials in...

2014-10-08 16:20:24

WASHINGTON, Oct. 8, 2014 /PRNewswire-USNewswire/ -- Astronomers have found a pulsating, dead star beaming with the energy of about 10 million suns. This is the brightest pulsar - a dense stellar remnant left over from a supernova explosion - ever recorded. The discovery was made with NASA's Nuclear Spectroscopic Telescope Array, or NuSTAR. http://photos.prnewswire.com/prnvar/20081007/38461LOGO "You might think of this pulsar as the 'Mighty Mouse' of stellar remnants," said Fiona...

2014-10-07 23:03:59

A class of molecules 100 – 1,000 times more energetic than typical has been discovered by Dr. Young K. Bae, a physicist at Y.K. Bae Corporation, Advanced Space and Energy Technologies under the auspices of DTRA (Defense Threat Reduction Agency). Tustin, CA (PRWEB) October 07, 2014 A class of molecules 100 – 1,000 times more energetic than typical has been discovered by Dr. Young K. Bae, a physicist at Y.K. Bae Corporation, Advanced Space and Energy Technologies under the auspices of...

2014-10-06 23:06:16

The market report for security screening covers the market data and information with regard to the market drivers, trends and opportunities, key players, and competitive outlook. (http://www.marketsandmarkets.com/Market-Reports/security-screening-market-264685413.html) (PRWEB) October 06, 2014 According to a new market research report "Security Screening Market by Product (X-ray & biometric screening system, EDT, and metal detector), by Application (Airport, Government, Border...

2014-10-01 23:07:27

The market report for security screening covers the market data and information with regard to the market drivers, trends and opportunities, key players, and competitive outlook. (http://www.marketsandmarkets.com/Market-Reports/security-screening-market-264685413.html) (PRWEB) October 01, 2014 According to a new market research report "Security Screening Market by Product (X-ray & biometric screening system, EDT, and metal detector), by Application (Airport, Government, Border...

2014-09-26 23:00:31

Radiopaque Solutions, Inc. has developed flexible x-ray visible micro marker bands for minimally invasive catheter applications. Device engineers have a new tool to help surgoens visualize devices during procedures. Bonita Springs, FL (PRWEB) September 27, 2014 Radiopaque Solutions, Inc., the world leader in x-ray visible materials technology, has developed a new micro marker band for extremely small devices. The bands, complement the current product offering of mid range and large...

2014-09-24 08:27:34

DUBLIN, Sept. 24, 2014 /PRNewswire/ -- Research and Markets has announced the addition of the "Medical Imaging Markets (X-Ray, CT, MRI, Ultrasound, PET, SPECT, Others)" report to their offering. http://photos.prnewswire.com/prnvar/20130307/600769 The contribution of imaging to medical practice has made it a continuously growing market with new technologies launched all the time. Imaging scans make possible early and more accurate diagnoses, which, in turn, may lead to optimized treatment...

2014-09-21 23:00:26

Digital radiography systems are used for diagnostic imaging of human body. These systems help detect abnormalities and diseases such as lung diseases, cardiovascular diseases, and cancer. http://www.marketsandmarkets.com/Market-Reports/digital-x-ray-market-1164.html (PRWEB) September 22, 2014 The report “Digital X-ray Market by Application (Mammography, Dental, Chest Imaging), Technology (Computes, Direct), Portability (Floor to ceiling mounted, Ceiling mounted, Handheld), End User,...


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
negawatt
  • A unit of saved energy.
Coined by Amory Lovins, chairman of the Rocky Mountain Institute as a contraction of negative watt on the model of similar compounds like megawatt.