2003/11/24 by Fedor V. Prigara, F. V. Prigara, Prigara, F. V.
Engineering · Mathematics · Physics and Astronomy · #Astrophysics (astro-ph) #Atomic and Molecular Physics #FOS: Physical sciences #Gas Dynamics and Kinetic Theory #Laser-Ablation Synthesis of Nanoparticles #astro-ph
paper · pdf · doi:10.48550/arxiv.astro-ph/0311532
6 pages, REVTeX
arxiv created 2003/11/24 · openalex publication_date 2003/11/24 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Using the principle of detailed balance and the assumption on the absorption cross-section consistent with available astrophysical data, we obtain the energy distribution of atoms in the field of thermal blackbody radiation and show that this distribution diverges from the Boltzmann law. There is an inversion of the high energy level population at sufficiently high temperatures.