Superbursts: A New Probe of the rp-Process

Details Superbursts: A New Probe of the rp-Process Superbursts: A New Probe of the rp-Process

Jul 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005nupha.758..439c&link_type=abstract

Nuclear Physics A, Vol. 758, p.439-446

Physics

Nuclear Physics

10

Scientific paper

Long term monitoring of X-ray burst sources has discovered a new class of thermonuclear X-ray bursts from accreting neutron stars in low mass X-ray binaries. These "superbursts" have durations and energies 1000 times larger than usual Type I X-ray bursts. They are believed to be due to thermally unstable carbon burning in the neutron star ocean, providing a new opportunity to study the ashes of rp-process hydrogen/helium burning. I summarize the current theory of superbursts, giving analytic formulae where possible, and compare with observations. I review recent work on carbon production by the rp-process, the detection of superbursts from the rapid accretor GX 17+2, and models of superburst lightcurves.

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