Constraining the GRB-Magnetar Model by Means of the Galactic Pulsar Population
- Rea, Nanda
- Gullón Juanes, Miguel
- Pons, José A.
- Perna, Rosalba
- Dainotti, Maria G.
- Miralles, Juan A.
- Torres, Diego F.
DOIAbstract
A large fraction of Gamma-ray bursts (GRBs) displays an X-ray plateau phase within <105 s from the prompt emission, proposed to be powered by the spin-down energy of a rapidly spinning newly born magnetar. In this work we use the properties of the Galactic neutron star population to constrain the GRB-magnetar scenario. We re-analyze the X-ray plateaus of all Swift GRBs with known redshift, between 2005 January and 2014 August. From the derived initial magnetic field distribution for the possible magnetars left behind by the GRBs, we study the evolution and properties of a simulated GRB-magnetar population using numerical simulations of magnetic field evolution, coupled with Monte Carlo simulations of Pulsar Population Synthesis in our Galax...
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