Magnetar-like x-ray bursts from a rotation-powered pulsar, PSR J1119-6127
Göğüş, Ersin and Lin, Lin and Kaneko Göğüş, Yuki and Kouveliotou, Chryssa and Watts, Anna L. and Chakraborty, Manoneeta and Alpar, M. Ali and Huppenkothen, Daniela and Roberts, Oliver J. and Younes, George and Van der Horst, Alexander J. (2016) Magnetar-like x-ray bursts from a rotation-powered pulsar, PSR J1119-6127. Astrophysical Journal Letters, 829 (2). L25-L25. ISSN 2041-8205 (Print) 2041-8213 (Online)
Official URL: http://dx.doi.org/10.3847/2041-8205/829/2/L25
Two energetic hard X-ray bursts from the rotation-powered pulsar PSR J1119−6127 recently triggered the Fermi and Swift space observatories. We have performed in-depth spectral and temporal analyses of these two events. Our extensive searches in both observatories' data for lower luminosity bursts uncovered 10 additional events from the source. We report here on the timing and energetics of the 12 bursts from PSR J1119−6127 during its burst active phase on 2016 July 26 and 28. We also found a spectral softer X-ray flux enhancement in a post-burst episode, which shows evidence of cooling. Here we discuss the implications of these results on the nature of this unusual high-field radio pulsar, which firmly place it within the typical magnetar population.
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