Publications (5)
Atmospheric ionization rates during a geomagnetic reversal
Jacob Svensmark
The Matuyama-Brunhes reversal of Earth's magnetic dipole field took place 0.78 Ma ago, and detailed temporally resolved paleomagnetic data are available for this period. A geomagne…
Effect of asphericity in caustic mass estimates of galaxy clusters
Jacob Svensmark, Radoslaw Wojtak, Steen H. Hansen
The caustic technique for measuring mass profiles of galaxy clusters relies on the assumption of spherical symmetry. When applied to aspherical galaxy clusters, the method yields m…
On the mass mismatch between simulations and weak-lensing measurements
Jacob Svensmark, Davide Martizzi, Adriano Agnello
The recently discovered discrepancy between galaxy mass measurements from weak lensing and predictions from abundance matching questions our understanding of cosmology, or of the g…
The Ion and Charged Aerosol Growth Enhancement (ION-CAGE) code: A numerical model for the growth of charged and neutral aerosols
Jacob Svensmark, Nir J. Shaviv, Martin B. Enghoff +1
The presence of small ions influences the growth dynamics of a size distribution of aerosols. Specifically the often neglected mass of small ions influences the aerosol growth rate…
Estimating the dark matter velocity anisotropy to the cluster edge
Jacob Svensmark, Steen H. Hansen, Davide Martizzi +2
Dark matter dominates the properties of large cosmological structures such as galaxy clusters, and the mass profiles of the dark matter have been measured for these equilibrated st…