Momentum transfer models of interacting dark energy

Mark S. Linton*, Robert Crittenden*, Alkistis Pourtsidou*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

We consider two models of interacting dark energy, both of which interact only through momentum exchange. One is a phenomenological one-parameter extension to wCDM, and the other is a coupled quintessence model described by a Lagrangian formalism. Using a variety of high and low redshift data sets, we perform a global fitting of cosmological parameters and compare to ΛCDM, uncoupled quintessence, and wCDM. We find that the models are competitive with ΛCDM, even obtaining a better fit when certain data sets are included.
Original languageEnglish
Article number075
Pages (from-to)1-23
Number of pages23
JournalJournal of Cosmology and Astroparticle Physics (JCAP)
Issue number8
Publication statusPublished - 31 Aug 2022

Keywords / Materials (for Non-textual outputs)

  • astro-ph.CO
  • cosmological parameters from CMBR
  • dark energy theory
  • dark matter theory


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