X-rays spectroheliograms in lines of Mg xi and Mg xii
Identifieur interne : 005844 ( Main/Exploration ); précédent : 005843; suivant : 005845X-rays spectroheliograms in lines of Mg xi and Mg xii
Auteurs : C. Bonnelle [France] ; C. Senemaud [France] ; G. Senemaud [France] ; G. Chambe [France] ; M. Guionnet [France] ; J. C. Henoux [France] ; R. Michard [France]Source :
- Solar Physics [ 0038-0938 ] ; 1973-04-01.
Abstract
Abstract: Spectroheliograms in the Lα Mg xii line and in the Mg xi resonance (R) 1s 21 S 0-1s2p 1 P 1 line, intercombination (I) 1s 21 S 0-1s2p 3 P 1,2, line, and the forbidden (F) 1s 21 S 0-1s2s 3 S 1 line, have been obtained. Two Bragg crystal spectrometers were used mounted with mechanical collimators to obtain a spatial resolution of 1′ × 3′. The apparatus was launched on a sounding rocket on July 2nd, 1971. A particularly thorough study was made of the brightest active region (MC 11402). Variations in the F to I Mg xi line intensity ratio from one point to another in the active region did not reveal the presence of high electron densities. The observed intensities of the Mg xi R line, Mg xii Lα line and Mg x 1s 22s 2 S 1/2-1s2p 1 P 2s × × 2 P11/2, 3/2 S line are not well explained by an isothermal model. Good agreement between computed and observed intensities is obtained using the non-isothermal model proposed here.
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DOI: 10.1007/BF00150812
Affiliations:
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Two Bragg crystal spectrometers were used mounted with mechanical collimators to obtain a spatial resolution of 1′ × 3′. The apparatus was launched on a sounding rocket on July 2nd, 1971. A particularly thorough study was made of the brightest active region (MC 11402). Variations in the F to I Mg xi line intensity ratio from one point to another in the active region did not reveal the presence of high electron densities. The observed intensities of the Mg xi R line, Mg xii Lα line and Mg x 1s 22s 2 S 1/2-1s2p 1 P 2s × × 2 P11/2, 3/2 S line are not well explained by an isothermal model. Good agreement between computed and observed intensities is obtained using the non-isothermal model proposed here.</div></front></TEI><affiliations><list><country><li>France</li></country></list><tree><country name="France"><noRegion><name sortKey="Bonnelle, C" sort="Bonnelle, C" uniqKey="Bonnelle C" first="C." last="Bonnelle">C. Bonnelle</name></noRegion><name sortKey="Chambe, G" sort="Chambe, G" uniqKey="Chambe G" first="G." last="Chambe">G. Chambe</name><name sortKey="Guionnet, M" sort="Guionnet, M" uniqKey="Guionnet M" first="M." last="Guionnet">M. Guionnet</name><name sortKey="Henoux, J C" sort="Henoux, J C" uniqKey="Henoux J" first="J. C." last="Henoux">J. C. Henoux</name><name sortKey="Michard, R" sort="Michard, R" uniqKey="Michard R" first="R." last="Michard">R. Michard</name><name sortKey="Senemaud, C" sort="Senemaud, C" uniqKey="Senemaud C" first="C." last="Senemaud">C. Senemaud</name><name sortKey="Senemaud, G" sort="Senemaud, G" uniqKey="Senemaud G" first="G." last="Senemaud">G. Senemaud</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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