7 papers
Understanding the behavior of Prometheus and Pandora
Alison J. Farmer, Peter Goldreich
We revisit the dynamics of Prometheus and Pandora, two small moons flanking Saturn's F ring. Departures of their orbits from freely precessing ellipses result from mutual interacti…
Spoke formation under moving plasma clouds
Alison J. Farmer, Peter Goldreich
Goertz and Morfill (1983) propose that spokes on Saturn's rings form under radially moving plasma clouds produced by meteoroid impacts. We demonstrate that the speed at which a pla…
Wave damping by MHD turbulence and its effect upon cosmic ray propagation in the ISM
Alison J. Farmer, Peter Goldreich
Cosmic rays scatter off magnetic irregularities (Alfven waves) with which they are resonant, that is waves of wavelength comparable to their gyroradii. These waves may be generated…
Optical Identification of Close White Dwarf Binaries in the LISA Era
Asantha Cooray, Alison J. Farmer, Naoki Seto
The Laser Interferometer Space Antenna (LISA) is expected to detect close white dwarf binaries (CWDBs) through their gravitational radiation. Around 3000 binaries will be spectrall…
Finding White Dwarfs with Transit Searches
Alison Farmer, Eric Agol
We make predictions for the rate of discovery of eclipsing white dwarf-main sequence (WD-MS) binaries in terrestrial-planet transit searches, taking the planned Kepler and Eddingto…
The Gravitational Wave Background from Cosmological Compact Binaries
Alison J. Farmer, E. S. Phinney
We use a population synthesis approach to characterise, as a function of cosmic time, the extragalactic close binary population descended from stars of low to intermediate initial…