References of "Swings, Polydore"
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See detailRayonnement visible et infrarouge : Soleil, étoiles, planètes comètes
Swings, Polydore ULg

in Annales d'astrophysique (1965), 28

1) Visible region. When carried on board of space vehicles telescopes can be used with their maximum theoretical resolving power, by avoiding the effects of atmosphere turbulence. As the atmospheric ... [more ▼]

1) Visible region. When carried on board of space vehicles telescopes can be used with their maximum theoretical resolving power, by avoiding the effects of atmosphere turbulence. As the atmospheric scattering is suppressed, observations of very low contrast phenomena are made easier. Closer observations of the solar system objects are made possible. 2) Infra red region. Observations taken from 30 km high are freed of most of the atmospheric absorption. But some infra red observations require the use of satellites (for example scanning of the whole sky within spectral regions). Needed observations are reviewed. [less ▲]

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See detailObservations spectrographiques de la comète "Ikeya-Seki" (1965f) effectuées à l'Observatoire de Haute-Provence
Dufay, Jean; Swings, Polydore ULg; Fehrenbach, Charles

in Publications de l'Observatoire de Haute-Provence (1965), 8(14), 3

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See detailRayonnement visible et infrarouge : Soleil, étoiles, planètes et comètes
Swings, Polydore ULg

in Steinberg, J. L. (Ed.) Astronomical observations from space vehicles : Proceedings from Symposium no. 23 held in Liege, Belgium, 17 to 20 august 1964 (1965)

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See detailCometary spectra
Swings, Polydore ULg

in Quarterly Journal of the Royal Astronomical Society (1965), 6

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See detailLes spectres des Novae, Novoïdes et Supernovae dans le domaine des courtes longueurs d'onde (λ < 3000 Å)
Swings, Polydore ULg

in Annales d'astrophysique (1964), 27

The author reviews the new possibilities of study of novae (novoids) and supernovas which will result from orbital telescope observations in the regions λ 912 - λ 3000 and λ < 20 Å. The possibilities ... [more ▼]

The author reviews the new possibilities of study of novae (novoids) and supernovas which will result from orbital telescope observations in the regions λ 912 - λ 3000 and λ < 20 Å. The possibilities concern in particular relative abundances, coronal effects, excitation mechanisms, temperature determinations and ionisations. [less ▲]

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See detailAstronomie et géodésie : Trois conférences (mars et avril 1964)
Swings, Polydore ULg; Grognard, René

Book published by Université de Liège. Institut d’Astrophysique (ULg) (1964)

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See detailQuelques progrès recents en physique cométaire
Swings, Polydore ULg

in Astrophysica Norvegica (1964), 9

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See detailReport on the Scientific Interest and Problems
Swings, Polydore ULg

in Space Science Reviews (1963), 1

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See detailOtto Struve (1897-1963)
Swings, Polydore ULg

in Astronomie (L') (1963), 77

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See detailComportement des raies interdites de l'oxygène dans les comètes. I : Observations
Swings, Polydore ULg

in Annales d'astrophysique (1962), 25

The forbidden lines of [OI] are present in many cometary spectra. Sometimes, the auroral transition λ 5577 is strongest, sometimes the nebular transition λ 6300-λ 6364. The behaviour of [OI] in various ... [more ▼]

The forbidden lines of [OI] are present in many cometary spectra. Sometimes, the auroral transition λ 5577 is strongest, sometimes the nebular transition λ 6300-λ 6364. The behaviour of [OI] in various comets is described. [less ▲]

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See detailExtra-Terrestrial Observations: Reports of national space-research programs 381
Swings, Polydore ULg

in Transactions of the International Astronomical Union. Series B, Proceedings of the general assembly (1962), 11

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See detailPossible contributions of space experiments to cometary physics
Swings, Polydore ULg

in SAO Special Report (1962), 111

Possible space experiments for observing the geometric, spectroscopic, and photometric behavior of comets are described. These experiments are proposed beacause an interpretation of cometary data may ... [more ▼]

Possible space experiments for observing the geometric, spectroscopic, and photometric behavior of comets are described. These experiments are proposed beacause an interpretation of cometary data may yield essential data on the formation and evolution of the solar system and the nature of interplanetary space. The various ways of obtaining significant planetary data are examined. These include the use of: (1) far ultraviolet observations by orbiting astronomical observatories; (2) artificial gaseous comets formed by high-altitude release of gases such as NH[SUB]3[/SUB]; (3) orbiting artificial cometary nuclei such as blocks of CO[SUB]2[/SUB] or NH[SUB]3[/SUB] ice, perhaps with an addition of meteoric material; and (4) fly-by p probes of a comet such as Encke's periodic comet. The significance of the data that would be obtained by each of these methods is predicted. [less ▲]

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See detailCurrent objectives of astronomical space research (from gamma to infrared radiation)
Swings, Polydore ULg

in Deutsch, Armin J.; Klemperer, Wolfgang B. (Eds.) Space Age Astronomy : Proceedings of an international Symposium held August 7-9, 1961 at the California Institute of Technology in conjunction with the 11th General Assembly of the International Astronomical Union (IAU, GA, 11) (1962)

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See detailObjectives of Space Investigations of Comets
Swings, Polydore ULg

in Deutsch, Armin J.; Klemperer, Wolfgang B. (Eds.) Space Age Astronomy : Proceedings of an international Symposium held August 7-9, 1961 at the California Institute of Technology in conjunction with the 11th General Assembly of the International Astronomical Union (IAU, GA, 11) (1962)

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See detailLe spectre de la comete "Seki-Lines" (1962c)
Swings, Polydore ULg; Fehrenbach, Charles

in Publications de l'Observatoire de Haute-Provence (1962), 6(12), 3

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See detailLe spectre de la comète Burnham (1959k)
Dossin, F.; Fehrenbach, Charles; Haser, L. et al

in Annales d'astrophysique (1961), 24

Comet 1959 k has been observed spectrographically at the coudé-focus of the 193 cm-reflector of OHP. Fairly high resolutions have been used. The continuum is weak and confined into a small central region ... [more ▼]

Comet 1959 k has been observed spectrographically at the coudé-focus of the 193 cm-reflector of OHP. Fairly high resolutions have been used. The continuum is weak and confined into a small central region. The structures of the OH -, NH -, C3 - and CH bands show greater detail than on any hitherto described cometary spectrogram. The R-branches of the (0 - 0) and (0 - 1) bands of the blue system of CN have been resolved. The Swings - and Greenstein effects have been discussed for CN (0 - 0). The rotational structure of the Swan bands is partly resolved. [less ▲]

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See detailLes observations astronomiques au dehors de l’atmosphère terrestre
Swings, Polydore ULg

Book published by Centre National de Recherches de l’Espace. (1960)

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See detailMécanisme d'excitation des bandes de Swan des comètes
Stawikowski, A.; Swings, Polydore ULg

in Annales d'astrophysique (1960), 23

The high resolution spectrograms of Comet Mrkos (1957d) reveal the essential features of the rotational structure of the Swan-bands. Intensity anomalies observed within the (1 - 0) and (2 - 1) transitions ... [more ▼]

The high resolution spectrograms of Comet Mrkos (1957d) reveal the essential features of the rotational structure of the Swan-bands. Intensity anomalies observed within the (1 - 0) and (2 - 1) transitions are due to the presence of absorption lines in the exciting solar radiation. It is thus proved that the Swan bands are excited by fluorescence, although their lower level 3πu is not the ground electronic state of C2. [less ▲]

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See detailQuelques réflexions d'un spectroscopiste
Swings, Polydore ULg

in Annales d'astrophysique (1960), 23

Individual spectroscopic studies are of great importance. Spectroscopic observations in the infra-red and for ultra-violet should be prepared and our knowledge of spectroscopic properties in classical ... [more ▼]

Individual spectroscopic studies are of great importance. Spectroscopic observations in the infra-red and for ultra-violet should be prepared and our knowledge of spectroscopic properties in classical fields should also be improved in order to find solutions to the following problems : interstellar matter, planetary nebulae, symbiotic stars, W, Of and Be stars, relative abundances in stars of population type II, isotopic abundances in stars and planets, variable stars, etc.... [less ▲]

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See detailLe spectre de la nébuleuse planétaire IC 3568
Swings, Polydore ULg; Fehrenbach, Charles

in Journal des observateurs (1958), 41(11-12), 161-162

Le noyau de la nébuleuse IC 3568 montre à la fois les émissions de l'azote et du carbone, mais le doublet de NΠ voisin de H est absent dans la nébuleuse. Ce caractère distingue IC 3568 des nébuleuses NGC ... [more ▼]

Le noyau de la nébuleuse IC 3568 montre à la fois les émissions de l'azote et du carbone, mais le doublet de NΠ voisin de H est absent dans la nébuleuse. Ce caractère distingue IC 3568 des nébuleuses NGC 6543, IC 4997, NGC 6826. [less ▲]

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