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Latest Gamma ray Stories

artist rendering of GRB 130925A
2014-07-13 04:08:40

redOrbit Staff & Wire Reports - Your Universe Online A long-lasting gamma-ray burst that was first observed last year contained traits similar to those expected from explosions of some of the earliest stars in the universe, claims a new study appearing in The Astrophysical Journal. According to the ESA, the long-lasting blast of extremely energetic radiation was identified as GRB130925A, and thanks to both ground- and space-based equipment, astronomers were able to track its origin...

Middle Drum
2014-07-10 04:29:16

John P. Millis, Ph.D. for redOrbit.com - Your Universe Online All across the Universe high-energy charged particles – mostly protons, electrons, and hydrogen nuclei, though heavier nuclei also exist – are found racing in all directions. The source of these particles, collectively called cosmic rays, is masked by the interstellar magnetic field that bends their paths, making them nearly impossible to directly trace. Much progress has been made in narrowing down their origin in recent...

2014-07-07 23:04:20

RnRMarketResearch.com adds “Radiation Detection Markets: 2014-2021” to its store. The report identifies the new opportunities that continue to emerge from the sales of equipment designed to detect ionization radiation. Dallas, Texas (PRWEB) July 07, 2014 The customer base for radiation detection equipment is very broad and includes the food, pharmaceutical and mining industries, as well as the medical and nuclear power sectors mentioned above. In addition, radiation detection is used...

2014-06-24 23:02:26

The report also includes eight-year (volume and value) forecasts for key sensors used in radiation detection applications, such as medical gamma cameras, RIIDS, portal monitors, PET detectors, oil exploration and scientific sensors, etc. Glen Allen, VA (PRWEB) June 24, 2014 According to a new report from industry analyst firm NanoMarkets the market for radiation detectors will grow from $25.7 billion (USD) in 2014 to $31.5 billion in revenues in 2019. The report, “Radiation Detection...

New Diagnostic Imaging Techniques Found To Be Safe Using Simulations
2014-06-05 03:36:37

Duke University Medical Center Gamma and neutron imaging offer possible improvements over existing techniques such as X-ray or CT, but their safety is not yet fully understood. Using computer simulations, imaging the liver and breast with gamma or neutron radiation was found to be safe, delivering levels of radiation on par with conventional medical imaging, according to researchers at Duke Medicine. The findings, published in the June issue of the journal Medical Physics, will help...

McDonald Observatory Sees Light From Huge Explosion 12 Billion Years Ago
2014-06-05 03:04:01

Margaret Allen, Southern Methodist University Intense light from the enormous explosion of a star more than 12 billion years ago — shortly after the Big Bang — recently reached Earth and was visible in the sky. Known as a gamma-ray burst, light from the rare, high-energy explosion traveled for 12.1 billion years before it was detected and observed by a telescope, ROTSE-IIIb, owned by Southern Methodist University, Dallas. Gamma-ray bursts are believed to be the catastrophic...

Gamma-ray Burst
2014-05-01 04:41:32

redOrbit Staff & Wire Reports - Your Universe Online An international team of astronomers has for the first time measured circular polarization in the afterglow of gamma-ray bursts, the powerful flashes of radiation originating from massive dying stars as they collapse into black holes. A massive star explodes as a supernova when it dies, and its core collapses into a black hole, scientists from the Niels Bohr Institute explained in a statement Wednesday. In rare instances, a jet is...

Spidery Pulsars Consume Their Mates With A Deadly Embrace
2014-02-21 14:19:40

[ Watch The Video: A Black Widow Pulsar Consumes its Mate ] Francis Reddy, NASA Black widow spiders and their Australian cousins, known as redbacks, are notorious for their tainted love, expressed as an unsettling tendency to kill and devour their male partners. Astronomers have noted similar behavior among two rare breeds of binary system that contain rapidly spinning neutron stars, also known as pulsars. "The essential features of black widow and redback binaries are that...

First Gamma Ray Study Gravitational Lens
2014-01-06 15:27:47

[ Watch the Video: Fermi Provides New Details About Gravitational Lenses ] Brett Smith for redOrbit.com - Your Universe Online A gravitational lens is created when a galaxy or other massive object bends and amplifies light heading toward an observer from a more distant source and a new paper from an international team of researchers has reported the first-ever gamma ray study of the cosmic phenomenon. The paper, which will be published in an upcoming edition of Astrophysical Journal...

2014-01-06 12:20:58

WASHINGTON, Jan. 6, 2014 /PRNewswire-USNewswire/ -- An international team of astronomers, using NASA's Fermi observatory, has made the first-ever gamma-ray measurements of a gravitational lens, a kind of natural telescope formed when a rare cosmic alignment allows the gravity of a massive object to bend and amplify light from a more distant source. (Logo: http://photos.prnewswire.com/prnh/20081007/38461LOGO) This accomplishment opens new avenues for research, including a novel way...


Latest Gamma ray Reference Libraries

7_7ab115b117284658644e345b89f5ba712
2004-10-19 04:45:43

Gamma-Ray Astronomy -- Gamma-ray astronomy is the astronomical study of gamma rays. Long before experiments could detect gamma rays emitted by cosmic sources, scientists had known that the universe should be producing these photons. Work by Feenberg and Primakoff in 1948, Hayakawa and Hutchinson in 1952, and, especially, Morrison in 1958 had led scientists to believe that a number of different processes which were occurring in the universe would result in gamma-ray emission. These...

6_f3739d4b04b11a1c267bfcc286610ef92
2004-10-19 04:45:41

Hypernova -- A hypernova is a theoretical type of supernova produced when exceptionally large stars collapse at the end of their lifespan. In a hypernova, the core of the star collapses directly into a black hole and two extremely energetic jets of plasma are emitted from its rotational poles at nearly light speed. These jets emit intense gamma rays, and are a candidate explanation for gamma ray bursts. Theorists have come up with several plausible explanations for hypernovae. It may...

6_c9b95f985acbe749f13bf6301a3180a85
2004-10-19 04:45:41

Electromagnetic Spectrum -- The electromagnetic spectrum describes the various types of electromagnetic radiation based on their wavelengths. Radio, representing wavelengths from a few feet to well over a mile, is at one end of the spectrum. Gamma ray radiation is at the other end: the wavelength of the harder types is so short, in the subatomic range, that we do not have instruments capable of directly measuring it. While the above classification scheme is generally accurate, in...

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Word of the Day
bibliopole
  • A bookseller; now, especially, a dealer in rare and curious books.
This word comes from a Greek phrase meaning 'book seller.'
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