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INTEGRALIBIS 7-year map of the Galactic Bulge
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INTEGRAL/IBIS 7-year map of the Galactic Bulge

January 8, 2013
This image shows a map of the Galactic Bulge region, reconstructed from data collected over seven years, from 2003 to 2010, with IBIS/ISGRI on board INTEGRAL, and covering the 17-60 keV energy band. The overlaid green contours are isophotes of the 4.9 micron surface brightness of the Galaxy as seen by COBE/DIRBE, revealing the bulge/disc structure of the inner Galaxy. The near-infrared brightness of the Galaxy traces also the hard X-ray Galactic Ridge emission. See "related images" in the right-hand menu for a version of this image without the overlaid contours. Date: 11 Aug 2010 Satellite: INTEGRAL Depicts: Galactic Bulge Copyright: Roman Krivonos (RSDC, Moscow, Russia, and MPA, Garching Germany), Astronomy Letters, 2010 in press; map of the Galactic Ridge emission from M. Revnivtsev et al., 2006