Quantcast
Fermi Discovers Evidence Of Starquakes In Magnetar Burst

Fermi Discovers Evidence Of Starquakes In Magnetar Burst Eruptions

Chuck Bednar for redOrbit.com - Your Universe Online New analysis of high energy blasts from a magnetar, originally observed by NASA's Fermi Gamma-ray Space Telescope in 2009, has resulted in the discovery of underlying signals related to...

Latest Gamma-ray burst Stories

Hurricane Julio Gamma Ray Flash
2014-08-08 02:00:26

Francis Reddy and Rob Gutro, NASA's Goddard Space Flight Center NASA's Fermi and Aqua satellites captured two different views of bursts of strength show by Hurricane Julio as it intensified. NASA's Fermi satellite saw a gamma-ray flash from Julio, while NASA's Aqua satellite saw Julio become more structurally organized as a hurricane. Fermi Spots Julio's Gamma-Ray Flash Shortly after 4:19 a.m. EDT on Monday, Aug. 4, NASA's Fermi Gamma-ray Space Telescope showed that Julio packs a...

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...

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...

A Stellar Explosion On The Outer Reaches Of The Universe Provides Clues About The Formation Of Black Holes
2014-05-08 03:10:01

University of the Basque Country A partnership of the UPV/EHU-University of the Basque Country, Ikerbasque and the CSIC-Spanish National Research Council is participating in the detecting, for the first time, of circular light coming from a recently created black hole On 24 October 2012 observatories across the world were alerted about a huge stellar explosion, the GRB121024A, which had been located just hours before in the Eridanus constellation by NASA's Swift satellite. However, only...

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...

supernova
2014-01-26 05:13:55

[ Watch the Video: What Interstellar Blast Is Lighting Up The Sky? ] redOrbit Staff & Wire Reports - Your Universe Online Several NASA spacecraft and Earth-based observatories, including the Hubble Space Telescope and the Chandra X-ray Observatory, are studying an incredibly close supernova that took place on January 21, officials from the US space agency announced on Friday. The stellar explosion, which has been designated SN 2014J, lies approximately 12 million light-years away...

Our Understanding of the Universe MAXI-mized By The International Space Station
2014-01-16 08:31:10

NASA Look up at the night sky … do you see it? The stars of the cosmos bursting in magnificent explosions of death and rebirth! No? Well, then maybe you are not looking through the “eyes” of the Monitor of All-sky X-ray Image (MAXI) investigation, mounted on the exterior of the International Space Station Kibo module. MAXI, along with other sky watching instruments, such as Swift, collect data that help researchers discover, study and understand the physics behind the powerful...

Watch Out Buggles, Black Hole Also Killed The Radio Star
2013-12-20 14:37:23

Lee Rannals for redOrbit.com - Your Universe Online Astronomers have discovered a new type of exploding star that exhausts all its energy before collapsing into a black hole. Scientists believed all gamma-ray bursts were followed by a radio afterglow, so Australian astronomers of the Centre for All-sky Astrophysics (CAASTRO) at Curtin University and the University of Sydney decided to set out to prove this theory. Instead they discovered a new population of exploding stars that switched...

New Insights Into Cosmic Phenomena Provided By Swift Satellite
2013-12-17 05:07:02

redOrbit Staff & Wire Reports - Your Universe Online By analyzing data collected by NASA’s Swift robotic spacecraft, astronomers from the University of Leicester have reportedly discovered the location of nearly 100,000 previously unknown cosmic X-ray sources. The research team studied eight years’ worth of observations collected during the Swift Gamma-Ray Burst Mission to compile a catalog of major celestial X-ray sources – a list that includes more than 150,000 high-energy...


Latest Gamma-ray burst 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_f5324ad7d5514381282c99963af8be7c2
2004-10-19 04:45:41

Gamma-Ray Burst -- In astronomy, Gamma-ray bursters (GRBs) are flashes of gamma rays that last from seconds to hours, the longer ones being followed by several days of X-ray afterglow. They occur at random positions in the sky several times each day. They are now believed to result from tremendous explosions in far away galaxies, during the creation of a black hole from a dying star or two colliding neutron stars. The black hole, surrounded by a rotating disk of matter falling into it,...

More Articles (3 articles) »
Word of the Day
ramage
  • Boughs or branches.
  • Warbling of birds in trees.
Related