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

Among confirmed central compact objects (CCOs), only three sources havemeasured period and period derivatives. We have investigated possibleevolutionary paths of these three CCOs in the fallback disc model. The modelcan account for the individual X-ray luminosities and rotational properties ofthe sources consistently with their estimated supernova ages. For thesesources, reasonable model curves can be obtained with dipole field strengths$\sim$ a few $\times 10^9$ G on the surface of the star. The model curvesindicate that these CCOs were in the spin-up state in the early phase ofevolution. The spin-down starts, while accretion is going on, at a time $t \sim10^3 - 10^4$ yr depending on the current accretion rate, period and themagnetic dipole moment of the star. This implies that some of the CCOs withrelatively long periods, weak dipole fields and high X-ray luminosities couldbe strong candidates to show spin-up behavior if they indeed evolve withfallback discs.

Central Compact Objects: some of them could be spinning up?