290 citations · 478 across the 12 of their papers we have counts for
16 papers · 1 filter
Geometrodynamical Distances to the Galaxy's Hydrogen Streams
Shoko Jin, Donald Lynden-Bell
We present a geometrodynamical method for determining distances to orbital streams of HI gas in the Galaxy. The method makes use of our offset from the Galactic centre and assumes…
Analytic Central Orbits and their Transformation Group
Donald Lynden-Bell, Shoko Jin
A useful crude approximation for Abelian functions is developed and applied to orbits. The bound orbits in the power-law potentials A*r^{-alpha} take the simple form (l/r)^k = 1 +…
Electromagnetic Fields in Jets
B. D. Sherwin, D. Lynden-Bell
The magnetic fields and energy flows in an astronomical jet described by our earlier model are calculated in detail. Though the field distribution varies with the external pressure…
Lattice Melting and Rotation in Perpetually Pulsating Equilibria
C. Pichon, D. Lynden-Bell, J. Pichon +1
Systems whose potential energies consists of pieces that scale as r^-2 together with pieces that scale as r^2, show no violent relaxation to Virial equilibrium but may pulsate at c…
An Orphan in the "Field of Streams"
V. Belokurov, N. W. Evans, M. J. Irwin +19
We use Sloan Digital Sky Survey Data Release 5 photometry and spectroscopy to study a tidal stream that extends over 50 degrees in the North Galactic Cap. From the analysis of the…
Hamilton's Eccentricity Vector Generalised to Newton Wonders
D. Lynden-Bell
The vectorial velocity is given as a function of the position of a particle in orbit when a Newtonian central force is supplemented by an inverse cubic force as in Newton's theorem…