{ "id": "1906.01746", "version": "v1", "published": "2019-06-04T22:43:32.000Z", "updated": "2019-06-04T22:43:32.000Z", "title": "Heating of a Quiet Region of the Solar Chromosphere by Ion and Neutral Acoustic Waves", "authors": [ "B. Kuźma", "D. Wójcik", "K. Murawski" ], "categories": [ "astro-ph.SR" ], "abstract": "Using high-resolution numerical simulations we investigate the plasma heating driven by periodic two-fluid acoustic waves that originate at the bottom of the photosphere and propagate into the gravitationally stratified and partially ionized solar atmosphere. We consider ions+electrons and neutrals as separate fluids that interact between themselves via collision forces. The latter play an important role in the chromosphere, leading to significant damping of short-period waves. Long-period waves do not essentially alter the photospheric temperatures, but they exhibit the capability of depositing a part of their energy in the chromosphere. This results in up about a five times increase of ion temperature that takes place there on a time-scale of a few minutes. The most effective heating corresponds to waveperiods within the range of about 30-200 s with a peak value located at 80 s. However, we conclude that for the amplitude of the driver chosen to be equal to 0.1 km s$^{-1}$, this heating is too low to balance the radiative losses in the chromosphere.", "revisions": [ { "version": "v1", "updated": "2019-06-04T22:43:32.000Z" } ], "analyses": { "keywords": [ "neutral acoustic waves", "quiet region", "solar chromosphere", "periodic two-fluid acoustic waves", "high-resolution numerical simulations" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }