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 Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We report results on the timing analysis of the 2020 giant outburst of 1A0535+262, using broadband data from Insight-HXMT. The analysis of the pulseprofile evolution from the sub-critical luminosity to super-critical luminosityregime is presented for the first time. We found that the observed pulseprofile exhibits a complex dependence on both energy and luminosity.A dipstructure at the energy of the cyclotron resonant scattering features (CRSFs)is found for the first time in the pulse fraction-energy relation of 1A0535+262, when the outburst evolves in a luminosity range from 4.8 $\times10^{37}$ erg s$^{-1}$ to 1.0 $\times 10^{38}$ erg s$^{-1}$. The observedstructure is luminosity dependent and appears around the source criticalluminosity ($\sim$ 6.7 $\times 10^{37}$ erg s$^{-1}$).

Timing properties of the X-ray accreting pulsar 1A 0535+262 studied with Insight-HXMT