Unusual Testbed For Analyzing X-ray Navigation Technologies Built By NASA
NASA Pulsars have a number of unusual qualities. Like zombies, they shine even though they’re technically dead, and they rotate rapidly, emitting powerful and regular beams of radiation that are seen as flashes of light, blinking on and off...
Latest Pulsar Stories
Lee Rannals for redOrbit.com – Your Universe Online Astronomers have found a way to test Einstein's theory of gravity in ways that were not possible before now, thanks to new observations of a very unique system. A team used telescopes around the world to study the most massive neutron star confirmed so far, orbited by a white dwarf. The scientists wrote in the journal Science that so far the new observations match up with Einstein's predictions for general relativity. Einstein's...
GREENBELT, Md., April 5, 2013 /PRNewswire-USNewswire/ -- The Neutron-star Interior Composition Explorer (NICER), which NASA recently selected as its next Explorer Mission of Opportunity, will gather scientific data revealing the physics of the densest matter allowed in nature, and--from the same platform--will demonstrate a groundbreaking navigation technology that could revolutionize the agency's ability to travel to the far reaches of the solar system and beyond. (Logo:...
NASA [ Watch The Video ] NASA's Fermi Gamma-ray Space Telescope orbits our planet every 95 minutes, building up increasingly deeper views of the universe with every circuit. Its wide-eyed Large Area Telescope (LAT) sweeps across the entire sky every three hours, capturing the highest-energy form of light -- gamma rays -- from sources across the universe. These range from supermassive black holes billions of light-years away to intriguing objects in our own galaxy, such as X-ray...
Estonian Public Broadcasting deploys Pulsar Automated content verifier solution for verifying digitized archive assets New Delhi, India (PRWEB) February 12, 2013 Venera is pleased to announce that Estonian Public Broadcasting (ERR), the public broadcaster in Estonia has selected Pulsar Automated Content Verification system for automating its content QC operations. ERR is deploying the Pulsar in its broadcast operations for automatic verification of large amount of assets being digitized...
Lee Rannals for redOrbit.com - Your Universe Online A new image released by the European Space Agency (ESA) shows the aftershock of a stellar explosion coming from supernova remnant W44. W44 is about 10,000 light-years away from Earth in a forest of dense star-forming clouds in the constellation of Aquila. ESA said the image is one of the best examples of a supernova remnant interacting with its parent molecular cloud. The supernova remnant measures about 100 light-years across....
Lee Rannals for redOrbit.com – Your Universe Online Scientists at the Max Planck Institute have discovered a millisecond pulsar accompanied by an unusual sub-stellar partner known as a "black widow." The team has solved the mystery and identified the culprit of a source of strong gamma-rays found in the constellation of Centaurus back in 1994. Millisecond gamma-ray pulsar PSR J1311-3430 was found through a new data analysis method developed by the scientists at the Max Planck...
This week, ESA’s Integral space observatory celebrates ten years since launch on 17 October 2002. Integral, short for International Gamma-Ray Astrophysics Laboratory, is equipped with two gamma-ray telescopes, an X-ray monitor and an optical camera. All four of Integral’s instruments point simultaneously at the same region of the sky to make complementary observations of high-energy sources. Integral is often bathed in gamma-ray bursts, the death cries of massive stars that have...
April Flowers for redOrbit.com - Your Universe Online The European Space Agency (ESA) has commissioned a research team, including scientists from the National Physical Laboratory (NPL) and the University of Leicester, to investigate the possibility of using dead stars to navigate in deep space. If it is found to be feasible, this technique could revolutionize the way spacecraft navigate in the outer Solar System and beyond. Currently, spacecraft navigation relies on radio transmissions...
April Flowers for redOrbit.com - Your Universe Online In a galaxy not that far away, astronomically speaking at least, researchers using NASA's Chandra X-ray Observatory have detected the first x-rays emitted by the debris of a young supernova, SN 1957D. 15 million light years from Earth, in the M83 spiral galaxy, SN 1957D is one of only a few supernova located outside the Milky Way galaxy that is detectable in both radio and optical wavelengths, decades after the explosion itself was...
[ Watch the Video ] Lee Rannals for redOrbit.com - Your Universe Online One recently discovered star seems to have a split personality, with both a magnetar and pulsar consuming the object. The European Space Agency (ESA) said the newly discovered star appears to be a pulsar while hiding an intense internal magnetic field like a magnetar. The internal field is many times stronger than its external magnetic field, leading to its entry into the new class of "low-field...
Latest Pulsar Reference Libraries
X-ray Pulsar -- This dramatic artist's vision shows a city-sized neutron star centered in a disk of hot plasma drawn from its enfeebled red companion star. Ravenously accreting material from the disk, the neutron star spins faster and faster emitting powerful particle beams and pulses of X-rays as it rotates 400 times a second. Could such a bizarre and inhospitable star system really exist in our Universe? Based on data from the orbiting Rossi X-Ray Timing Explorer (RXTE) satellite,...
Pulsar -- A pulsar, which originally stood for pulsating radio source, is a rapidly rotating neutron star, whose electromagnetic radiation is observed in regularly spaced interval, or pulses. Pulsars are closely related to magnetars, the main difference being the strenght of the object's magnetic field. History Pulsars were discovered by Jocelyn Bell and Antony Hewish in 1967 while they were using a radio array to study the scintillation of quasars. They found a very regular...
Magnetar -- A magnetar is a neutron star with a strong magnetic field. The theory around these objects was formulated by Robert Duncan and Christopher Thompson. When in a supernova a star collapses to a neutron star, its magnetic field increases dramatically in strength. Duncan and Thompson calculated that the magnetic field of a neutron star, normally an already enormous 1012 tesla could under certain circumstances grow even larger, to about 1015 tesla. Such a highly magnetic neutron...
Crab Nebula -- The Crab Nebula (Messier 1, NGC 1952) is the object the which started Charles Messier logging non-cometary objects on his Messier Catalog. It is the expanding cloud of gas thrown off in the explosion that gave rise to the 1054 supernova recorded by Chinese astronomers, now more than 6 light years across (the nebula is currently expanding at 1000 km/sec and the total mass of ejected material is about 0.1 solar masses). The supernova which produced it was bright enough to...
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