Thesis

New Maps of the Dark Side

Details

  • Call:

    PT-CERN Call 2021/1

  • Academic Year:

    2021/2022

  • Domain:

    Astroparticle Physics

  • Supervisor:

    Carlos Martins

  • Co-Supervisor:

  • Institution:

    Universidade do Porto

  • Host Institution:

    Centro de Astrofísica da Universidade do Porto

  • Abstract:

    The observational evidence for the acceleration of the universe demonstrates that canonical theories of cosmology and particle physics are incomplete. New physics is waiting to be discovered, and forthcoming astrophysical facilities must identify it. The source of acceleration has a low-redshift behaviour akin to a cosmological constant, but current data provides limited information on its high-redshift behaviour and possible interactions. Tackling the dark energy enigma requires extending the redshift range where its behaviour can be mapped. New facilities, such as Euclid, the ELT, and the SKA will enable this, increasing the range and sensitivity of current probes and allowing entirely new tests. This thesis will carry out a systematic exploration of the landscape of physically viable dark energy paradigms and provide optimal discriminating tests. It will focus on Euclid (which the student will join) and broaden to explore synergies and probe combinations with the SKA and ELT-HIRES.