Matches in DBpedia 2014 for { ?s ?p A magnetar is a type of neutron star with an extremely powerful magnetic field. The magnetic field decay powers the emission of high-energy electromagnetic radiation, particularly X-rays and gamma rays. The theory regarding these objects was proposed by Robert Duncan and Christopher Thompson in 1992, but the first recorded burst of gamma rays thought to have been from a magnetar had been detected on March 5, 1979. During the following decade, the magnetar hypothesis has become widely accepted as a likely explanation for soft gamma repeaters (SGRs) and anomalous X-ray pulsars (AXPs).A recent progress in theory suggests that the energy deposition from these magnetars into the expanding supernova remnant could possibly explain few observed cases of unusually bright supernovae. Traditionally such bright events are thought to come from very large stars when they become pair-instability supernova (or pulsational pair-instability supernova). However, two papers published in 2010 by astrophysicists at the University of California Berkeley, Santa Cruz and Santa Barbara provided semi-analytical and numerical models to explain some of the brightest events ever seen, such as SN 2005ap and SN 2008es. A research led by Matt Nicholl, of the Astrophysics Research Centre at Queen's School of Mathematics and Physics of Queen's University Belfast, the results of which were published on Oct 17, 2013 in Nature, has explained the newly discovered luminous transient PTF 12dam through the same mechanism.. }
Showing items 1 to 1 of
1
with 100 items per page.
- Magnetar abstract "A magnetar is a type of neutron star with an extremely powerful magnetic field. The magnetic field decay powers the emission of high-energy electromagnetic radiation, particularly X-rays and gamma rays. The theory regarding these objects was proposed by Robert Duncan and Christopher Thompson in 1992, but the first recorded burst of gamma rays thought to have been from a magnetar had been detected on March 5, 1979. During the following decade, the magnetar hypothesis has become widely accepted as a likely explanation for soft gamma repeaters (SGRs) and anomalous X-ray pulsars (AXPs).A recent progress in theory suggests that the energy deposition from these magnetars into the expanding supernova remnant could possibly explain few observed cases of unusually bright supernovae. Traditionally such bright events are thought to come from very large stars when they become pair-instability supernova (or pulsational pair-instability supernova). However, two papers published in 2010 by astrophysicists at the University of California Berkeley, Santa Cruz and Santa Barbara provided semi-analytical and numerical models to explain some of the brightest events ever seen, such as SN 2005ap and SN 2008es. A research led by Matt Nicholl, of the Astrophysics Research Centre at Queen's School of Mathematics and Physics of Queen's University Belfast, the results of which were published on Oct 17, 2013 in Nature, has explained the newly discovered luminous transient PTF 12dam through the same mechanism.".