Photofluid Instabilities of Hot Stellar Envelopes

Beginning from a relatively simple set of dynamical equations for a fluid permeated by a radiative field strong enough to produce significant forces, we find the structure of plane-parallel equilibria and study their stability to small acoustic disturbances. In doing this, we neglect viscous effects and complications of nongreyness. We find that acoutic instabilities occur over a wide range of conditions below the Eddington limit. This result is in line with findings reported twenty years ago but it contradicts some more recent reports of the absence of instabilities. We briefly attempt to identify the causes of the discrepancies and then close with a discussion of the possible astrophysical interest of such instabilities.Comment: 10 pages, LaTeX, 5 postscript figures, to be published in Physics Report

Sand und Haufen. Dune von Denis Villeneuve

«Dune», mal wieder. Regisseur Denis Villeneuve tritt ein erdrückendes Erbe an. Bisher sind alle Adaptionen des Science-Fiction-Epos grandios gescheitert – und haben trotzdem Filmgeschichte geschrieben. Und diesmal

»Die Wirklichkeit allein reicht nicht aus«. Interview mit Sandra Wollner

Austrian filmmaker Sandra Wollner talks about her movie The Trouble with Being Born

Peiler, Nils Daniel: To Infinity and Beyond. Die künstlerische Rezeption von Stanley Kubricks 2001: Odyssee im Weltraum. Königshausen & Neumann, 2022

Review of To Infinity and Beyond. Die künstlerische Rezeption von Stanley Kubricks 2001: Odyssee im Weltraum by Nils Daniel Peiler