96 citations · 436 across the 13 of their papers we have counts for
9 papers · 1 filter
Ultra-high energy Neutrinos from Centaurus A and the Auger hot spot
Alessandro Cuoco, Steen Hannestad
The Pierre Auger collaboration has reported a correlation between Ultra-High Energy Cosmic Rays (UHECR) and nearby Active Galactic Nuclei (AGNs) within 75 Mpc. Two of these events…
Global neutrino parameter estimation using Markov Chain Monte Carlo
Steen Hannestad
We present a Markov Chain Monte Carlo global analysis of neutrino parameters using both cosmological and experimental data. Results are presented for the combination of all present…
Angular Signatures of Annihilating Dark Matter in the Cosmic Gamma-Ray Background
Alessandro Cuoco, Jacob Brandbyge, Steen Hannestad +2
The extragalactic cosmic gamma-ray background (CGB) is an interesting channel to look for signatures of dark matter annihilation. In particular, besides the imprint in the energy s…
Unparticle constraints from SN1987A
Steen Hannestad, Georg Raffelt, Yvonne Y. Y. Wong
The existence of an unparticle sector, weakly coupled to the standard model, would have a profound impact on supernova (SN) physics. Emission of energy into the unparticle sector f…
Cosmological constraints on neutrino plus axion hot dark matter
Steen Hannestad, Alessandro Mirizzi, Georg G. Raffelt +1
We use observations of the cosmological large-scale structure to derive limits on two-component hot dark matter consisting of mass-degenerate neutrinos and hadronic axions, both co…
Precision measurements of large scale structure with future type Ia supernova surveys
Steen Hannestad, Troels Haugboelle, Bjarne Thomsen
Type Ia supernovae are currently the best known standard candles at cosmological distances. In addition to providing a powerful probe of dark energy they are an ideal source of inf…