Speaker
Mikio Morii
(Japan Aerospace Exploration Agency)
Description
We develop a new deconvolution method to recover the Crab Nebula image taken by the Hitomi HXT. To suppress the artifact due to the bright Crab pulsar located at the center of the Crab Nebula, we extend the Richardson-Lucy method. Here, we introduce two components corresponding to the nebula and pulsar with regularization for smoothness and flux, respectively, and we perform simultaneous deconvolution of multi-pulse-phase images. At 3.6-15 keV band, we successfully recover the torus and jets, as seen in the Chandra X-ray image. Above 15 keV, we confirm the NuSTAR's findings that the nebula size decreases in higher energy bands.
Primary author
Mikio Morii
(Japan Aerospace Exploration Agency)
