0386860 - ASÚ 2013 RIV FR eng J - Journal Article
Heinzel, Petr - Anzer, U.
Radiative equilibrium in solar prominences reconsidered.
Astronomy & Astrophysics. Roč. 539, March (2012), A49/1-A49/6. ISSN 0004-6361. E-ISSN 1432-0746
R&D Projects: GA ČR GA205/09/1705; GA ČR GAP209/10/1680
Institutional research plan: CEZ:AV0Z10030501
Keywords : Sun * radiative transfer
Subject RIV: BN - Astronomy, Celestial Mechanics, Astrophysics
Impact factor: 5.084, year: 2012 ; AIS: 1.468, rok: 2012
DOI: https://doi.org/10.1051/0004-6361/200913537

We reconsider the question which kinetic temperatures can lead to prominence configurations that are in radiative equilibrium. We compare these temperatures to those from other calculations. By adding the calcium radiative losses, we found that these equilibrium temperatures are considerably lower than those obtained for a pure hydrogen gas. This is because the newly calculated CaII line losses appear to play a significant role in the energy balance, similar to chromospheric conditions. The equilibrium temperatures obtained span the range between 4400−9500 K, depending on the gas pressure and slab thickness.
Permanent Link: http://hdl.handle.net/11104/0220211