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| Paper: |
Interpreting Observations of GRBs with Numerical Simulations |
| Volume: |
474, Numerical Modeling of Space Plasma Flows (ASTRONUM2012) |
| Page: |
33 |
| Authors: |
Aloy, M. A.; Cuesta-Martínez, C.; Mimica, P.; Obergaulinger, M.; Thöne, C. C.; Ugarte Postigo, A.; Fryer, C.; Page, K. L.; Gorosabel, J.; Perley, D. A.; Kouveliotou, C.; Janka, H. T.; Racusin, J. L.; Christmas burts collaboration |
| Abstract: |
We show how numerical simulations have triggered the interpretation of GRB 101225A, so-called, the “Christmas
burst.” This event is unusual because of its extremely long γ-ray emission and optical counterpart. The X-ray
spectrum shows a black-body component which is present on a handful of nearby gamma-ray bursts (GRBs). Numerical models have
shown that the atypical properties of this GRB can be explained by the interaction between an ultrarelativistic jet and high-density
ejecta, which naturally results after the dynamical common-envelope phase of the merger between a neutron star and the He core of a red
giant binary system. |
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