Measurement of the oscillator strengths of very weak 1 eV Fe I lines
Relative oscillator strengths are measured for nine very weak 1-eV Fe I lines, using the Oxford spectroscopic furnace. These oscillator strengths are placed on an absolute scale...
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Density Ratios, Empirical Likelihood and Cot Death
SUMMARY A method is developed for the estimation of the logarithm of the ratio of two probability density functions. The method has applications in several contexts, notably in ...
Waves a heavy, viscous, incompressible, electrically conducting fluid of variable density, in the presence of a magnetic field
The equilibrium of a horizontal layer of a heavy incompressible fluid of variable density p 0 in the vertical direction is stable or unstable according as d p o /dz (z being the...
Non-LTE model atmospheres for central stars of planetary nebulae
A grid of hot non-LTE model atmospheres with H and He opacity sources has been calculated. The emergent fluxes, together with integrals required for Zanstra and Energy-Balance m...
Spring arrival patterns of the Cuckoo<i>Cuculus canorus</i>, Nightingale<i>Luscinia megarhynchos</i>and Spotted Flycatcher<i>Musciapa striata</i>in Britain
Data on the arrival dates of Cuckoo, Nightingale and Spotted Flycatcher published in the Royal Meteorological Society phenological reports are presented. From these records, con...
Experiments on the stability of viscous flow between rotating cylinders II. Visual observations
Measurements of the hydrodynamic stability of viscous flow between rotating cylinders have been made with an apparatus similar to that used by Taylor in his original experiments...
Modelling the correlation between the thermal Sunyaev Zel'dovich effect and the cosmic infrared background
We show how the correlation between the thermal Sunyaev Zel'dovich effect\n(tSZ) from galaxy clusters and dust emission from cosmic infrared background\n(CIB) sources can be cal...
The instability of a layer of fluid heated below and subject to the simultaneous action of a magnetic field and rotation
This paper is devoted to an examination of the stability of a horizontal layer of fluid heated below, subject to an effective gravity g acting (approximately) in the direction o...
XIII. The variation of molecular surface-energy with temperature
1. The well-known relation of volume-energy to temperature, expressed by the equation pv = RT, and the simple relations between p, v, and T when the substance examined is in the...