Early migration damped Neptune's eccentricity. Here, we assume that the value was much smaller than observed today, and show closest flyby of ∼0.1 M⊙ star over ∼4.5 Gyr in field, at a distance ∼103 au would explain eccentricity today.

We present computational results showing eccentricity growth in the inner portions of a protoplanetary disc. We attribute this to the evolving surface density of the disc. The planet creates a gap, which adjusts the balance between the 3:1 (eccentricity exciting) and 2:1 (eccentricity damping) resonances. The eccentricity of the inner disc can rise as high as 0.3, which is sufficient to cause i...

This paper makes use of the continuous eccentricity transform to perform shape matching. The eccentricity transform has already been proven useful in a discrete graph-theoretic setting. We show how these ideas extend naturally to the continuous setting thus bringing a higher geometrical fidelity. The continuous eccentricity transform is used to compute multiscale descriptors for shapes. These d...

1 Natural climate change: glacial cycles 1 1.1 Climatic cycles . . . . . . . . . . . . . . . . . . . . . . . . . . 1 1.2 Milankovitch hypothesis: an introduction . . . . . . . . . . . . 4 1.2.1 Precession, obliquity, and eccentricity . . . . . . . . . . 5 1.2.2 Insolation . . . . . . . . . . . . . . . . . . . . . . . . . 7 1.3 Precession and obliquity . . . . . . . . . . . . . . . . . . . . . 8...

Current spectrums of a high power induction machine was calculated for the cases of full symmetry, static and dynamic eccentricity. The calculations involve integration of 93 electrical plus four mechanical ordinary differential equations. Electrical equations account for variable inductances affected by slotting and eccentricities. The calculations were followed by Fourier analysis of the stat...

The rate of galaxy cluster eccentricity evolution is useful in understanding large scale structure. Rapid evolution for z < 0.13 has been found in observed clusters. We present an analysis of projections of 41 clusters produced in hydrodynamic simulations augmented with radiative cooling and 43 clusters from adiabatic simulations. This new, larger set of simulated clusters strengthens the claim...

The differential migration of two planets due to planet-disk interaction can result in capture into the 2:1 eccentricity-type mean-motion resonances. Both the sequence of 2:1 eccentricity resonances that the system is driven through by continued migration and the possibility of a subsequent capture into the 4:2 inclination resonances are sensitive to the migration rate within the range expected...