374 citations · 2.9k across the 60 of their papers we have counts for
10 papers · 1 filter
Imprints of a Supercooled Phase Transition in the Gravitational Wave Spectrum from a Cosmic String network
Francesc Ferrer, Anish Ghoshal, Marek Lewicki
A network of cosmic strings (CS), if present, would continue emitting gravitational waves (GW) as it evolves throughout the history of the Universe. This results in a characteristi…
Dark matter spikes in the vicinity of Kerr black holes
Francesc Ferrer, Augusto Medeiros da Rosa, Clifford M. Will
The growth of a massive black hole will steepen the cold dark matter density at the center of a galaxy into a dense spike, enhancing the prospects for indirect detection. We study…
Intergalactic magnetic field spectra from diffuse gamma rays
Wenlei Chen, Borun D. Chowdhury, Francesc Ferrer +2
Non-vanishing parity-odd correlators of gamma ray arrival directions observed by Fermi-LAT indicate the existence of a helical intergalactic magnetic field (Tashiro et al.2013). We…
Search for CP Violating Signature of Intergalactic Magnetic Helicity in the Gamma Ray Sky
Hiroyuki Tashiro, Wenlei Chen, Francesc Ferrer +1
The existence of a cosmological magnetic field could be revealed by the effects of non-trivial helicity on large scales. We evaluate a CP odd statistic, , using gamma ray data o…
The Scientific Reach of Multi-Ton Scale Dark Matter Direct Detection Experiments
Jayden L. Newstead, Thomas D. Jacques, Lawrence M. Krauss +2
The next generation of large scale WIMP direct detection experiments have the potential to go beyond the discovery phase and reveal detailed information about both the particle phy…
Constraints on Light Hidden Sector Gauge Bosons from Supernova Cooling
James B. Dent, Francesc Ferrer, Lawrence M. Krauss
We derive new bounds on hidden sector gauge bosons which could produce new energy loss mechanisms in supernovae, enlarging the excluded region in mass-coupling space by a significa…
Detecting Chameleon Dark Energy via Electrostatic Analogy
Katherine Jones-Smith, Francesc Ferrer
The late-time accelerated expansion of the universe could be caused by a scalar field that is screened on small scales, as in chameleon or symmetron scenarios. We present an analog…
Degree-scale anomalies in the CMB: localizing the first peak dip to a small patch of the north ecliptic sky
Amanda Yoho, Francesc Ferrer, Glenn D. Starkman
Noticeable deviations from the prediction of the fiducial LCDM cosmology are found in the angular power spectrum of the CMB. Besides large-angle anomalies, the WMAP 1st year data r…
Studies of Cosmic Ray Composition and Air Shower Structure with the Pierre Auger Observatory
The Pierre Auger Collaboration, J. Abraham, P. Abreu +470
Studies of the composition of the highest energy cosmic rays with the Pierre Auger Observatory, including examination of hadronic physics effects on the structure of extensive air…
Secular evolution of galaxies and galaxy clusters in decaying dark matter cosmology
Francesc Ferrer, Carlo Nipoti, Stefano Ettori
If the dark matter sector in the universe is composed by metastable particles, galaxies and galaxy clusters are expected to undergo significant secular evolution from high to low r…