http://www.rssboard.org/rss-specification 720 http://ecuip-xtf.lib.uchicago.edu/xtf/search?f7-type%3DChart Results for your query: f7-type=Chart Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/BATSE_2704/BATSE_2704.dc.xml Each dot on the elliptal surface of this map represents the location of one of 2704 gamma-ray bursts detected by BATSE during its 9-year mission. The map’s perspective places the plane of the Milky Way centered horizontally across the map. The bursts are color-coordinated according to intensity with long, intense bursts colored red, and short, weaker bursts colored purple. Note that the majority of the bursts are colored green, which denote medium energy and/or duration. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/BATSE_2704/BATSE_2704.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/GLAST_GRB_multiwavelength/GLAST_GRB_multiwavelength.dc.xml The typical spectrum of a gamma burst delineates the spectral range of two instruments on the Fermi Space Telescope: the Gamma-ray Burst Monitor (GBM) and Large Area Telecope (LAT). http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/GLAST_GRB_multiwavelength/GLAST_GRB_multiwavelength.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/NASA-COBE-MAP/NASA-COBE-MAP.dc.xml The final CoBE all-sky map of the apparent fluctuations in the cosmic background, thought to be the seeds of the large scale structure of the Universe. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/NASA-COBE-MAP/NASA-COBE-MAP.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/NASA-Fermi-Map/NASA-Fermi-Map.dc.xml This all-sky image made in 2011 was constructed using two years of observations by NASA's Fermi Gamma-ray Space Telescope. It shows how the sky appears at energies greater than 1 billion electron volts (1 GeV). Brighter colors indicate brighter gamma-ray sources. A diffuse glow fills the sky and is brightest along the plane of our galaxy (middle). Discrete gamma-ray sources include pulsars and supernova remnants within our galaxy, as well as distant galaxies powered by supermassive black holes. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/NASA-Fermi-Map/NASA-Fermi-Map.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/SAS3-Rapid-Burster-GC/SAS3-Rapid-Burster-GC.dc.xml This image displays the light curve of the Rapid Burster discovered by Walter Lewin in data from SAS-3. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/SAS3-Rapid-Burster-GC/SAS3-Rapid-Burster-GC.dc.xml Thu, 01 Jan 1970 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/firstgrb_vela4/firstgrb_vela4.dc.xml Gamma-ray bursts (GRBs) are sudden outbursts of gamma rays from a particular place in the sky that last a few seconds or so. These outbursts are similar to what is seen in a nuclear bomb explosion, and the first GRBs were detected by the Vela satellites that monitored nuclear testing. This graph shows the sudden increase in gamma rays recorded for the first GRB detected by the monitoring satellites in 1967. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/firstgrb_vela4/firstgrb_vela4.dc.xml Sun, 02 Jul 1967 12:00:00 GMT http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/heao1-sky-map/heao1-sky-map.dc.xml Beginning in 1977, NASA launched a series of very large scientific payloads called High Energy Astronomy Observatories (HEAO). The first of these missions, HEAO-1, carried NRL’s Large Area Sky Survey Experiment (LASS), consisting of 7 detectors. It surveyed the X-ray sky almost three times over the 0.2 keV - 10 MeV energy band and provided nearly constant monitoring of X-ray sources near the ecliptic poles. http://ecuip-xtf.lib.uchicago.edu/xtf/view?docId=grxr/heao1-sky-map/heao1-sky-map.dc.xml Thu, 01 Jan 1970 12:00:00 GMT