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Listening to the sound of dark sector interactions with gravitational wave standard sirens 
Yang, Weiqiang; Vagnozzi, Sunny; Di Valentino, Eleonora; Nunes, Rafael C.; Pan, Supriya; Mota, David (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)
We consider two stable Interacting Dark Matter-Dark Energy models and confront them against current Cosmic Microwave Background data from the Planck satellite. We then generate luminosity distance measurements from Script ...
Dawn of the dark: unified dark sectors and the EDGES Cosmic Dawn 21-cm signal 
Yang, Weiqiang; Pan, Supriya; Vagnozzi, Sunny; Di Valentino, Eleonora; Mota, David; Capozziello, Salvatore (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)
While the origin and composition of dark matter and dark energy remains unknown, it is possible that they might represent two manifestations of a single entity, as occurring in unified dark sector models. On the other hand, ...
Magnetically charged black holes from non-linear electrodynamics and the Event Horizon Telescope 
Allahyari, Alireza; Khodali, Mohsen; Vagnozzi, Sunny; Mota, David (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
Non-linear electrodynamics (NLED) theories are well-motivated extensions of QED in the strong field regime, and have long been studied in the search for regular black hole (BH) solutions. We consider two well-studied and ...
Do we have any hope of detecting scattering between dark energy and baryons through cosmology? 
Vagnozzi, Sunny; Visinelli, Luca; Mena, Olga; Mota, David (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
We consider the possibility that dark energy and baryons might scatter off each other. The type of interaction we consider leads to a pure momentum exchange, and does not affect the background evolution of the expansion ...
Black holes with scalar hair in light of the Event Horizon Telescope 
Khodadi, Mohsen; Allahyari, Alireza; Vagnozzi, Sunny; Mota, David (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2020)
Searching for violations of the no-hair theorem (NHT) is a powerful way to test gravity, and more generally fundamental physics, particularly with regards to the existence of additional scalar fields. The first observation ...
 
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Date Issued2020 (3)2019 (2)Document TypeTidsskriftartikkel (5)AuthorMota, David (5)
Vagnozzi, Sunny (5)
Allahyari, Alireza (2)Di Valentino, Eleonora (2)Pan, Supriya (2)... View MorePeer ReviewedPeer reviewed (5)
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