{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T04:22:41Z","timestamp":1760242961986,"version":"build-2065373602"},"reference-count":34,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2015,2,2]],"date-time":"2015-02-02T00:00:00Z","timestamp":1422835200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Entropy"],"abstract":"<jats:p>The entropy production (inside the volume bounded by a photosphere) of  main-sequence stars is calculated based on B\u2013V 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.<\/jats:p>","DOI":"10.3390\/e17020658","type":"journal-article","created":{"date-parts":[[2015,2,2]],"date-time":"2015-02-02T10:27:36Z","timestamp":1422872856000},"page":"658-668","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Entropy Production of Main-Sequence Stars"],"prefix":"10.3390","volume":"17","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7066-8768","authenticated-orcid":false,"given":"Leonid","family":"Martyushev","sequence":"first","affiliation":[{"name":"Ural Federal University, Mira St. 19, 620002 Ekaterinburg, Russia"},{"name":"Institute of Industrial Ecology, S Kovalevskoi St. 20a, 620219 Ekaterinburg, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sergey","family":"Zubarev","sequence":"additional","affiliation":[{"name":"Ural Federal University, Mira St. 19, 620002 Ekaterinburg, Russia"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2015,2,2]]},"reference":[{"key":"ref_1","unstructured":"Prigogine, I., and Nicolis, G. 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