Thermodynamic properties of an evaporation process in self-gravitating N -body systems

Details Thermodynamic properties of an evaporation process in self-gravitating N -body systems Thermodynamic properties of an evaporation process in self-gravitating N -body systems

Aug 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010phrve..82b1118k&link_type=abstract

Physical Review E, vol. 82, Issue 2, id. 021118

Physics

Condensed Matter

Statistical Mechanics

2

Classical Statistical Mechanics, Thermodynamic Processes, Conduction, Convection, Equations Of State, Thermodynamics, Few- And Many-Body Systems

Scientific paper

By means of N -body simulations, we consider self-gravitating open systems enclosed in a spherical container with semipermeable reflecting walls, in order to investigate the thermodynamics of the evaporation process in self-gravitating N -body systems (such as the escape of stars from globular clusters). To simulate the evaporation process, when the energy of a particle exceeds a certain threshold value, the particle passes through the semipermeable reflecting wall freely. We show that the thermodynamic properties of the evaporation process, such as the dependence of the temperature on energy, agree well with those of stellar polytropes, if the system is in an approximate virial equilibrium state. However, in a lower-energy region or for a rapid evaporation process, the thermodynamic properties deviate from those for the stellar polytrope. Nevertheless, we found that a negative specific heat occurs even in the lower-energy region or for a rapid evaporation process.

Affiliated with

Also associated with

No associations

Rating

Thermodynamic properties of an evaporation process in self-gravitating N -body systems does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Thermodynamic properties of an evaporation process in self-gravitating N -body systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thermodynamic properties of an evaporation process in self-gravitating N -body systems will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1125316