Astronomy and Astrophysics – Astrophysics
Scientific paper
Feb 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986a%26a...156...73a&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 156, no. 1-2, Feb. 1986, p. 73-78.
Astronomy and Astrophysics
Astrophysics
36
Flare Stars, Photosphere, Solar Flares, Solar Temperature, Electron Bombardment, Light Emission, Radiative Transfer
Scientific paper
Empirical atmospheric models are used to estimate the energy deposit required to heat the temperature minimum region of the quiet sun to flare temperature. The calculations show that the necessary energy deposit in the temperature minimum region can be accounted for by electron bombardment. Electron beam heating of the temperature minimum and chromospheric regions produces white light emission with an energy output of about 5×109erg cm-2s-1. Also the upper photosphere is heated to about 30° above its quiet sun value by the downward radiation field. All layers from the chromosphere to the photosphere contribute to the white light emission process. The emission mechanisms are H- and hydrogen bound-free emission. The authors conclude, that no in-situ energy release is necessary to explain the heating of the temperature minimum region. An electron bombardment can increase the temperature of this region, and subsequently of the photosphere via radiative back heating, hence producing a white light flare.
Aboudarham Jean
Hénoux Jean-Claude
No associations
LandOfFree
Energy deposit at temperature minimum level and white light 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 Energy deposit at temperature minimum level and white light flares, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Energy deposit at temperature minimum level and white light flares will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1673744