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Open AccessArticle

Entropy Production of Stars

1
Department of Technical Physics, Ural Federal University, Mira St. 19, 620002 Ekaterinburg, Russia
2
Institute of Industrial Ecology, S Kovalevskoi St. 20a, 620219 Ekaterinburg, Russia
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Author to whom correspondence should be addressed.
Academic Editors: Umberto Lucia and Giuseppe Grazzini
Entropy 2015, 17(6), 3645-3655; https://doi.org/10.3390/e17063645
Received: 6 April 2015 / Revised: 26 May 2015 / Accepted: 29 May 2015 / Published: 2 June 2015
The entropy production (inside the volume bounded by a photosphere) of main-sequence stars, subgiants, giants, and supergiants is calculated based on B–V photometry data. A non-linear inverse relationship of thermodynamic fluxes and forces as well as an almost constant specific (per volume) entropy production of main-sequence stars (for 95% of stars, this quantity lies within 0.5 to 2.2 of the corresponding solar magnitude) is found. The obtained results are discussed from the perspective of known extreme principles related to entropy production. View Full-Text
Keywords: non-equilibrium thermodynamics; main-sequence stars; giants; supergiants; stability; metastability; minimum and maximum entropy production non-equilibrium thermodynamics; main-sequence stars; giants; supergiants; stability; metastability; minimum and maximum entropy production
MDPI and ACS Style

Martyushev, L.M.; Zubarev, S.N. Entropy Production of Stars. Entropy 2015, 17, 3645-3655.

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