activity
20242026
collaborators

7 papers

astro-ph.CO2026

GUEST: Gravitational Universe Exploration with Satellite Tracking. A passive satellite laser-ranging mission for the dark gravitational Universe

Diego Blas, Aurélien Hees, F. Javier Atapuerca +78

GUEST is a space mission concept whose central objective is the detection of gravitational waves (GWs) in the microhertz band -- a physics-rich frequency window that no other prese…

astro-ph.CO2026

Constraints on Dark Matter Models from Supermassive Black Hole Evolution

John Ellis, Malcolm Fairbairn, Juan Urrutia +1

A semi-analytical model for the evolution of galaxies and supermassive black holes (SMBHs) within the CDM paradigm has been shown to yield stellar mass-BH mass relations that r…

astro-ph.CO2025

Starlight from JWST: Implications for star formation and dark matter models

John Ellis, Malcolm Fairbairn, Juan Urrutia +1

We confront the star formation rate in different dark matter (DM) models with UV luminosity data from JWST up to and legacy data from HST. We find that a transition fro…

astro-ph.CO2025

Supermassive black holes from inflation constrained by dark matter substructure

Shin'ichiro Ando, Shyam Balaji, Malcolm Fairbairn +2

Recent James Webb Space Telescope observations of high-redshift massive galaxy candidates have initiated renewed interest in the important mystery around the formation and evolutio…

astro-ph.HE2025

511 keV Galactic Photons from a Dark Matter Spike

Pedro De la Torre Luque, Shyam Balaji, Malcolm Fairbairn +2

We propose that a dark matter (DM) spike around the Galactic Center's (GC) supermassive black hole, Sgr A*, could account for most of the bulge's measured 511 keV line intensity wh…

hep-ph2025

Magnetogenesis with gravitational waves and primordial black hole dark matter

Shyam Balaji, Malcolm Fairbairn, Maria Olalla Olea-Romacho

Strongly supercooled first order phase transitions (FOPTs) can produce primordial black hole (PBH) dark matter (DM) along with observable gravitational waves (GWs) from bubble coll…