51 citations · 51 across the 1 of their papers we have counts for
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MACHOs in M31? Absence of evidence but not evidence of absence
Jelte T. A. de Jong, Lawrence M. Widrow, Patrick Cseresnjes +9
We present results of a microlensing survey toward the Andromeda Galaxy (M31) carried out during four observing seasons at the Isaac Newton Telescope (INT). This survey is part of…
Semi-Analytic Models for Dark Matter Halos
Lawrence M. Widrow
Various analytic expressions have been proposed for the density profile of dark matter halos. We consider six of these expressions for which the density profile has a power-law fal…
The First Magnetic Fields
George Davies, Lawrence M. Widrow
We demonstrate that the Biermann battery mechanism for the creation of large scale magnetic fields can arise in a simple model protogalaxy. Analytic calculations and numerical simu…
Self-Similar Approach to Violent Relaxation
Richard Henriksen, Lawrence M. Widrow
We consider the evolution of an initially cold, spherically symmetric system of self-gravitating particles. At early times the system undergoes self-similar collapse of the type de…
Test-Bed Simulations of Collisionless, Self-Gravitating Systems Using the Schrödinger Method
George Davies, Lawrence M. Widrow
The Schrödinger Method is a novel approach for modeling numerically self-gravitating, collisionless systems that may have certain advantages over N-body and phase space methods. In…