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 further study a scenario in which a 3.55 keV X-ray line arises from decayof dark matter to an axion-like particle (ALP), that subsequently converts to aphoton in astrophysical magnetic fields. We perform numerical simulations ofGaussian random magnetic fields with radial scaling of the magnetic fieldmagnitude with the electron density, for both cool-core `Perseus' andnon-cool-core `Coma' electron density profiles. Using these, we quantitativelystudy the resulting signal strength and morphology for cool-core andnon-cool-core clusters. Our study includes the effects of fields of view thatcover only the central part of the cluster, the effects of offset pointings onthe radial decline of signal strength and the effects of dividing clusters intoannuli. We find good agreement with current data and make predictions forfuture analyses and observations.

A 3.55 keV line from $\text{DM}\rightarrow a \rightarrow \gamma$: predictions for cool-core and non-cool-core clusters