English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We develop a new deconvolution method to improve the angular resolution ofthe Crab Nebula image taken by the Hitomi HXT. Here, we extend theRichardson-Lucy method by introducing two components for the nebula and theCrab pulsar with regularization for smoothness and flux, respectively, anddeconvolving multi-pulse-phase images simultaneously. The deconvolved nebularimage at the lowest energy band of 3.6--15 keV looks consistent with theChandra X-ray image. Above 15 keV, we confirm that the NuSTAR's findings thatthe nebula size decreases in higher energy bands. We find that the north-eastside of the nebula becomes dark in higher energy bands. Our deconvolutionmethod can be applicable for any telescope images of faint diffuse objectscontaining a bright point source.

Hitomi-HXT deconvolution imaging of the Crab Nebula dazzled by the Crab pulsar