Entropy Production of Main-Sequence Stars

Entropy

Leonid M. Martyushev¹ 

[1] Ural Federal University, Mira St. 19, 620002 Ekaterinburg, Russia; E-Mail:

关键词: non-equilibrium thermodynamics;    open star clusters;    main-sequence stars;    entropy production;   

DOI  :  10.3390/e17020658

来源: mdpi

【 摘 要 】

The entropy production (inside the volume bounded by a photosphere) of main-sequence stars is calculated based on B–V photometry data. The entropy-production distribution function and the dependences of entropy production on temperature and luminosity are obtained for these stars for the first time. A very small range of variation of specific (per volume) entropy production discovered for main-sequence stars (only 0.5 to 1.8 solar magnitudes) is an interesting result that can be crucial for understanding thermodynamic processes of stars.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland