Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986a%26a...159...33m&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 159, no. 1-2, April 1986, p. 33-39.
Astronomy and Astrophysics
Astrophysics
28
Atmospheric Heating, Chromosphere, Hydrogen Ions, Solar Atmosphere, Solar Flares, Ultraviolet Absorption, Electron Density (Concentration), Energy Distribution, Ionization Potentials, Solar Temperature
Scientific paper
The authors reexamine the role of the negative hydrogen ion, H-, in the energy balance of the deep solar chromosphere and find, in contrast with earlier authors, that H- is a source of heating in these levels. The response of this region to an ionizing flux of flare-associated UV radiation (1500 ⪉ λ ⪉ 1900 Å) is then addressed: the authors find that the excess ionization of Si to Si+ increases the local electron number density considerably, since most species are largely neutral at deep chromospheric levels. This in turn increases the electron-hydrogen atom association rate, the H- abundance, and the rate of absorption of photospheric radiation by this ion. The authors find that the excess absorption by this process may lead to a substantial temperature enhancement at temperature minimum levels during flares.
Emslie Gordon A.
Machado Marcos E.
Mauas Pablo J.
No associations
LandOfFree
A mechanism for deep chromospheric heating during solar flares does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A mechanism for deep chromospheric heating during solar flares, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A mechanism for deep chromospheric heating during solar flares will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1101166