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Volumn 90, Issue 18, 2003, Pages

Long-term evolution of stellar self-gravitating systems away from thermal equilibrium: Connection with nonextensive statistics

Author keywords

[No Author keywords available]

Indexed keywords

COMPUTER SIMULATION; ENTROPY; GRAVITATIONAL EFFECTS; NUMERICAL METHODS; STATISTICAL MECHANICS; VELOCITY;

EID: 0038271919     PISSN: 00319007     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article
Times cited : (106)

References (23)
  • 17
    • 0037982282 scopus 로고    scopus 로고
    • note
    • The relation between the polytrope index n and the q parameter may change, depending on the choice of the statistical average: standard linear means [10,11] or normalized q values[13]. Here, we simply adopt the result using the standard linear mean.
  • 19
    • 0037982279 scopus 로고    scopus 로고
    • note
    • The energy-density contrast relation in Fig. 1 is essentially the same one as obtained from the analysis using the standard linear means (Fig. 2 of Ref. [11]) an that using the normalized q values (Fig. 3 of Ref. [13]). This means that the thermodynamic stability in a system confined in an adiabatic wall does not depend on the choice of the statistical average (see Ref. [13] for details).
  • 22
    • 0038319849 scopus 로고    scopus 로고
    • note
    • In fitting the simulation data to the stellar polytrope, we first quantify the radial density profile ρ(r) from each snapshot data. Selecting the 100 points from it at regular intervas in logarithmic scale of radius r, the results are then compared with the Emden solutions, fixing the energy λ and varying the polytrope index n.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.