8 citations · 8 across the 4 of their papers we have counts for
4 papers · 1 filter
Metastable cosmic strings are broken at the start
Lorenzo Tranchedone, Ethan Carragher, Edward Hardy +1
We show that metastable cosmic strings break at early times, either via finite-temperature effects or by attaching to pre-existing monopoles during network percolation. The resulti…
Stellar cooling limits on KK gravitons and dark dimensions
Edward Hardy, Anton Sokolov, Henry Stubbs
We revisit cooling bounds on light Kaluza-Klein (KK) gravitons, as arise in the dark dimension scenario, considering red giants, neutron stars, and supernovae. In addition to brems…
More Axion Stars from Strings
Marco Gorghetto, Edward Hardy, Giovanni Villadoro
We show that if dark matter consists of QCD axions in the post-inflationary scenario more than ten percent of it efficiently collapses into Bose stars at matter-radiation equality.…
Early vs late string networks from a minimal QCD Axion
Marco Gorghetto, Edward Hardy, Horia Nicolaescu +2
We propose a new regime of minimal QCD axion dark matter that lies between the pre- and post-inflationary scenarios, such that the Peccei-Quinn (PQ) symmetry is restored only on su…