Mass Transfer under Low Pressure

Active Mass under Pressure

After a historical introduction to Poisson’s equation for Newtonian gravity, its analog for static gravitational fields in Einstein’s theory is reviewed. It appears that the pressure contribution to the active mass density in Einstein’s theory might also be noticeable at the Newtonian level. A form of its surprising appearance, first noticed by Richard Chase Tolman, was discussed half a century...

Mass Transfer Between Clusters Under Ostwald’s Ripening

Low pressure warning system with automatic transfer.

C. S. WARD 1 has described previous devices used to indicate failure of oxygen supply. These include the '%osun" warning device, the Wantage oxygen failure alarm, 2 the Coote warning device, a the Adler and Burn device, 4 the "fail safe" oxygen device, 5 and the ECC gas failure alarm. 6 The reader is referred to Ward's paper for descriptions. It is evident from the above list that a warning sys...

Dwarf Novae at Low Mass Transfer Rates

We show that if the inner regions of accretion discs in quiescent dwarf nova systems are removed by magnetic disruption or evaporated by siphon ows, the remaining disc is globally stable for mass transfer rates < 10 15 g s 1. This implies that (super)outbursts in these systems have to be triggered by an enhanced mass transfer form the companion. We suggest that the lack of normal outbursts in W...

Irradiation and mass transfer in low-mass compact binaries

This paper studies the reaction of low-mass stars to anisotropic irradiation and its implications for the long-term evolution of compact binaries (cataclysmic variables and lowmass X-ray binaries). First, we show by means of simple homology considerations that if the energy outflow through the surface layers of a lowmass main sequence star is blocked over a fraction seff < 1 of its surface (e.g...