Speaker
Mr
Xuan-Han Liang
(Nanjing University)
Description
The Boomerang Nebula, a pulsar wind nebula associated with the supernova remnant G106.3+2.7, is a possible counterpart of the ultrahigh-energy gamma-ray source LHAASO J2226+6057. The SNR-PWN complex is considered as a PeVatron candidate, acting as a factory accelerating particles to PeV energies. In this work, we model the extended nonthermal X-ray emission around the pulsar PSR J2229+6114, which is believed to power the Boomerang Nebula. We find that the X-ray intensity profile and the spectral index profile can be explained by the transport of relativistic electrons from the inner region of the nebula to the outer region, taking into account the transition from the quasi-ballistic regime to the diffusive regime. The required magnetic field in the nebula is found to be about 200 microGauss in the model. This result may imply that the inverse Compton radiation of electrons inside the nebula is suppressed, and support the hadronic origin of the gamma-ray emission.
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Primary author
Mr
Xuan-Han Liang
(Nanjing University)
Co-authors
Mr
Jiashu Pan
(Nanjing University)
Mr
Qizuo Wu
(Nanjing University)
Dr
Ruo-Yu Liu
(Nanjing University)
