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Tables pour determiner la concentration d'atomes dans un etat donne: Ions coronaux interessants
The populations of the excited levels of coronal ions follow with very great accuracy an analytical law of the type a × N e b , where N e is the...
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Récherché du terme denième ordre des développements de l'astrodynamique
General expressions for the functions E=f(M), r/a=f(M) and a/r=f(M) in the two-body problem are obtained as functions of eccentricity e without using...
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Étude du choc de deux petites masses en présence d'un troisième corps de masse prépondérante
The analytical study of the evolution in the rectilinear problem of three bodies, leads us to consider the collision between two bodies, M 2 and M 3 ,...
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Modèle d'éjection de matière des novae
We have found that the gas of the premaximum, diffuse-enhanced and orion systems is produced by the nova itself and is ejected by shock waves in the...
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Photometrie photographique de la couronne solaire
A series of plates of the solar corona were obtained during the total solar eclipse of July 10th, 1972 near Anadyr (U.S.S.R.) using a standard...
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Sur les solutions Lagrangiennes du problème des trois corps solides avec la loi de Weber
In this work we consider the problem of translational-rotational motion of three solid bodies, for which the elementary particles attract each other...
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Observations coronographiques avant et apres les eclipses du 10 Juillet 1972 et du 30 Juin 1973
We are publishing here the results of coronagraphic observations that we have made at Pic-du-Midi Observatory, on the occasion of the total solar...
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Polarisation de la lumière, au bord du disque solaire, dans le proche infra-rouge
The polarization of light observed near the Sun's limb steeply goes down from the blue to the red part of the spectrum. New measurements performed...
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Étude de la localisation des éruptions dans la structure magnétique évolutive des régions actives solaires
A study of the localization of flares in the evolving magnetic pattern of solar Active Regions.
From the material of exceptional completeness...
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Sur la détermination du rapport d'intensité des raies infrarouges de l'ion Fe xiii
The ratio of the two infrared lines 10747 Å and 10798 Å of Fe xii is studied from a theoretical and observational point of view. The results and the...
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Calcul des probabilités de transition pour divers états excités du Fe XII
Transition probabilities have been computed for forbidden or permitted lines within the (3p 2 3d-3p 3 ), (3p 2 4s-3p 3 ), (3s3p 4 -3s 2 3p 3 ), (3p 2 4d-3p 3 )...
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L'avion, plateforme d'observations scientifiques
Transition between high altitude manned observatories and unmanned balloon-borne or rocket-borne experiments is achieved with high flying aircrafts,...
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Gradient de densité et température dans la basse couronne
The observations performed at the Pic du Midi Observatory with a K-coronameter at different altitudes above the solar limb allow us to compute the...
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Étude morphologique et cinématique des structures fines d'une tache solaire
A sequence of 34 photographs of the main spot of the group H 26 ( Daily Maps of the Sun , Freiburg 1970, Rome number 5847) has been obtained with the...
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Le Fe XII dans la couronne d'émission
Assuming that FeXII is reduced to 16 energy levels, we have computed the relative intensities of 21 spectral lines as a function of two parameters,...
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Mise En évidence De La Granulation Solaire à 2000 Å
Eight ultra-violet monochromatic pictures at the limb of the sun are analyzed for evidence of granulation in this spectral range (λ = 2000 Å). The...
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Un programme de photographie en lumière monochromatique des émissions coronales pour la période 1973–1976
A Cooperative international program is suggested for monochromatic coronal photography by means of interference filters.
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Sur les solutions particulières du problème généralisé des trois corps solides
In the present paper, the generalized problem of translatory-rotatory motion of three rigid bodies, whose elementary particles act upon each other...