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Pulse profile of the Crab Nebula
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Pulse profile of the Crab Nebula

January 7, 2013
The pulse profile of the Crab Nebula. Each panel shows the profile in a different energy range as measured by IBIS during the February 2003 observations. (Courtesy: Angela Bazzano, Giovanni La Rosa, Alberto Segreto and the IBIS team) Date: 16 Oct 2003 Copyright: ESA