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x-ray burster |
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x-ray burster [′eks ‚rā ′bər·stər] (astronomy) One of a class of celestial x-ray sources which produce bursts of x-rays in the 1-20-kiloelectronvolt range and which are characterized by rise times of less than a few seconds and decay times of a few seconds to a few minutes; the peak luminosity is of the order of 1038ergs per second (1031watts) and the sources have an average equivalent temperature of 108K. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| In the neutron-star system 4U 1636-536, Miller finds evidence for X-ray bursts that begin with two hot spots, on opposite sides of the neutron star. The energy unleashed by the infalling matter produces a steady stream of X-rays occasionally interrupted by X-ray bursts. These images show that twin, high-intensity X-ray bursts appear simultaneously at the two footpoints of a magnetic loop - the anchor points where magnetic fields leave the hot corona and enter the dense chromosphere. |
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