http://www.rssboard.org/rss-specification 720 http://ecuip-xtf.lib.uchicago.edu/xtf/search?docsPerPage%3D100;f60-subject%3DCompact%20Object Results for your query: docsPerPage=100;f60-subject=Compact Object Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/534058main_NS_six_panel_17/534058main_NS_six_panel_17.dc.xml Short gamma-ray bursts are difficult to study because they are so short. Less than 2 seconds is not a lot of time to find the burst and capture some data. These images show the merger of two neutron stars recently simulated using a new supercomputer model. Redder colors indicate lower densities. Green and white ribbons and lines represent magnetic fields. The orbiting neutron stars rapidly lose energy by emitting gravitational waves and merge after about three orbits, or in less than 8 milliseconds. The merger amplifies and scrambles the merged magnetic field. A black hole forms and the magnetic field becomes more organized, eventually producing structures capable of supporting the jets that power short gamma-ray bursts. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/534058main_NS_six_panel_17/534058main_NS_six_panel_17.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/cygx1_optical/cygx1_optical.dc.xml Since its discovery in 1962, the X-ray binary star Cygnus X-1 has been one of the most intensively studied cosmic X-ray sources. About a decade after its discovery, Cygnus X-1 secured a place in the history of astronomy when a combination of space-based, X-ray observations by the Chandra X-ray Observatory and optical, ground-based observations by the Digitized Sky Survey led to the conclusion that it was a black hole, the first such identification. This is an optical image of Cygnus X-1. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/cygx1_optical/cygx1_optical.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/cygx1_xray/cygx1_xray.dc.xml Since its discovery in 1962, the X-ray binary star Cygnus X-1 has been one of the most intensively studied cosmic X-ray sources. About a decade after its discovery, Cygnus X-1 secured a place in the history of astronomy when a combination of space-based, X-ray observations by the Chandra X-ray Observatory and optical, ground-based observations by the Digitized Sky Survey led to the conclusion that it was a black hole, the first such identification. This is a Chandra X-ray image of Cygnus X-1. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/cygx1_xray/cygx1_xray.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 http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/Swift-ScoX-1/Swift-ScoX-1.dc.xml This image from the Swift X-ray Telescope shows an X-ray nova (designated J1745-26) and Scorpius X-1, along with the scale of moon, as they would appear in the field of view from Earth. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/Swift-ScoX-1/Swift-ScoX-1.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/Swift-Soft-Gamma-Ray-Repeater-10366-date-overlay/Swift-Soft-Gamma-Ray_Repeater-10366-date-overlay.dc.xml Swift's X-Ray Telescope (XRT) captured an apparent expanding halo around the flaring neutron star SGR J1550-5418. The halo formed as X-rays from the brightest flares scattered off of intervening dust clouds. The animation shows the glow of the halo pulsing and dispersing over six days in January 2009. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/Swift-Soft-Gamma-Ray-Repeater-10366-date-overlay/Swift-Soft-Gamma-Ray_Repeater-10366-date-overlay.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/a010300_NeutronStar_NTSC/a010300_NeutronStar_NTSC.dc.xml Gamma-ray flares from SGR J1550-5418 may arise when the magnetar's surface suddenly cracks, releasing energy stored within its powerful magnetic field. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/a010300_NeutronStar_NTSC/a010300_NeutronStar_NTSC.dc.xml Thu, 01 Jan 1970 12:00:00 GMT