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

With an average density higher than the nuclear density, neutron stars (NS)provide a unique test-ground for nuclear physics, quantum chromodynamics (QCD),and nuclear superfluidity. Determination of the fundamental interactions thatgovern matter under such extreme conditions is one of the major unsolvedproblems of modern physics, and -- since it is impossible to replicate theseconditions on Earth -- a major scientific motivation for SKA. The moststringent observational constraints come from measurements of NS bulkproperties: each model for the microscopic behaviour of matter predicts aspecific density-pressure relation (its `Equation of state', EOS). Thisgenerates a unique mass-radius relation which predicts a characteristic radiusfor a large range of masses and a maximum mass above which NS collapse to blackholes. It also uniquely predicts other bulk quantities, like maximum spinfrequency and moment of inertia. The SKA, in Phase 1 and particularly in Phase2 will, thanks to the exquisite timing precision enabled by its rawsensitivity, and surveys that dramatically increase the number of sources: 1)Provide many more precise NS mass measurements (high mass NS measurements areparticularly important for ruling out EOS models); 2) Allow the measurement ofthe NS moment of inertia in highly relativistic binaries such as the DoublePulsar; 3) Greatly increase the number of fast-spinning NS, with the potentialdiscovery of spin frequencies above those allowed by some EOS models; 4)Improve our knowledge of new classes of binary pulsars such as black widows andredbacks (which may be massive as a class) through sensitive broad-band radioobservations; and 5) Improve our understanding of dense matter superfluidityand the state of matter in the interior through the study of rotationalglitches, provided that an ad-hoc campaign is developed.

Probing the neutron star interior and the Equation of State of cold dense matter with the SKA