ÆSOPUS 2.0
- Autor(en)
- Paola Marigo, Peter Woitke, Emanuele Tognelli, Léo Girardi, Bernhard Aringer, Alessandro Bressan
- Abstrakt
In this study we compute the equation of state and Rosseland mean opacity from temperatures of T ≃ 30,000 K down to T ≃ 400 K, pushing the capabilities of the ÆSOPUS code into the regime where solid grains can form. The GGchem code is used to solve the chemistry for temperatures less than ≃3000 K. Atoms, molecules, and dust grains in thermodynamic equilibrium are all included in the equation of state. To incorporate monochromatic atomic and molecular cross sections, an optimized opacity sampling technique is used. The Mie theory is employed to calculate the opacity of 43 grain species. Tables of Rosseland mean opacities for scaled-solar compositions are provided. Based on our computing resources, opacities for other chemical patterns, as well as various grain sizes, porosities, and shapes, can be easily computed upon user request to the corresponding author.
- Organisation(en)
- Institut für Astrophysik
- Externe Organisation(en)
- Università degli Studi di Padova, Österreichische Akademie der Wissenschaften (ÖAW), Czech Academy of Sciences, INAF - Osservatorio Astronomico di Padova, Scuola Internazionale Superiore di Studi Avanzati
- Journal
- Astrophysical Journal
- Band
- 960
- Anzahl der Seiten
- 9
- ISSN
- 0004-637X
- DOI
- https://doi.org/10.3847/1538-4357/ad0898
- Publikationsdatum
- 01-2024
- Peer-reviewed
- Ja
- ÖFOS 2012
- 103003 Astronomie, 103004 Astrophysik
- ASJC Scopus Sachgebiete
- Astronomy and Astrophysics, Space and Planetary Science
- Link zum Portal
- https://ucrisportal.univie.ac.at/de/publications/0fd60bc0-a2ea-4a69-9977-6373e13e2fff