http://www.rssboard.org/rss-specification 720 http://ecuip-xtf.lib.uchicago.edu/xtf/search?expand%3Dsubject;f1-subject%3DGamma%20Ray%20Burst;f2-type%3DArtwork Results for your query: expand=subject;f1-subject=Gamma Ray Burst;f2-type=Artwork Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/gamma-ray_bursts/gamma-ray_bursts.dc.xml This graphic illustrates the different sources and processes that result in long and short gamma-ray bursts. The left panel shows the collapse of a giant star that is thought to lead to a long GRB. The right panel shows the inspiral and coalescence of two neutron stars, which is thought to result in a short GRB. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/gamma-ray_bursts/gamma-ray_bursts.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/twoComponentJetStream_960x540/twoComponentJetStream_960x540.dc.xml Gamma-ray bursts that are longer than two seconds are caused by the detonation of a rapidly rotating massive star at the end of its life on the main sequence. Jets of particles and gamma radiation are emitted in opposite directions from the stellar core as the star collapses. In this model, a narrow beam of gamma rays is emitted, followed by a wider beam of gamma rays. The narrow beam for GRB 080319B was aimed almost precisely at the Earth, which made it the brightest gamma-ray burst observed to date by NASA's Swift satellite. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/twoComponentJetStream_960x540/twoComponentJetStream_960x540.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/165469main_403GRBCollapsarModelPar_NASAWebV_1/165469main_403GRBCollapsarModelPar_NASAWebV_1.dc.xml The collapsing star scenario that is one of the leading contenders as the cause of gamma-ray bursts. This artist's concept of the collapsar model shows the center of a dying star collapsing minutes before the star implodes and emits a gamma-ray burst that is seen across the universe. Many scientists say longer bursts (more than four seconds in duration) are caused by massive star explosions. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/165469main_403GRBCollapsarModelPar_NASAWebV_1/165469main_403GRBCollapsarModelPar_NASAWebV_1.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/68168main_swift-burst_m/6168main_swift-burst_m.dc.xml An artist's concept of the Swift Gamma-Ray Burst Explorer catching a gamma-ray burst. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/68168main_swift-burst_m/6168main_swift-burst_m.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/Neutron_Star_Merge_H264_High_960x540/Neutron_Star_Merge_H264_High_960x540.dc.xml Gamma-ray bursts are common, yet random, and fleeting events that have mystified astronomers since their discovery in the late 1960s. Shorter bursts (less than two seconds in duration) are thought to be caused by mergers of binary systems with black holes or neutron stars. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/Neutron_Star_Merge_H264_High_960x540/Neutron_Star_Merge_H264_High_960x540.dc.xml Thu, 01 Jan 1970 12:00:00 GMT