Results 1 to 10 of about 786 (162)
Jules Janssen : un refusé à l'ombre du soleil
Cahiers François Viète, 2015 Born into a middle-class family where art plays a major role, Jules Janssen was a self-taught scientist and had to work in the bank and then as a tutor while collecting university degrees.
Stéphane Le Gars
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Stark broadening parameter tables for In II [PDF]
Serbian Astronomical Journal, 2000 Electron-, proton-, and ionized helium-impact broadening parameter tables for In II spectral lines, are presented as a function of the temperature and the perturber density. Calculations have been performed within the semiclassical perturbation approach.
Dimitrijević M.S., Sahal-Brechot S.
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Cahiers François Viète, 2017 At the beginning of the 20th century, Portuguese astronomy was still firmly anchored in the past. Only astronometric research was pursued and Portuguese professional astronomers seldom published their results.
Vitor Bonifácio
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Image et mesure : deux cultures aux origines de l’astrophysique française
Cahiers François Viète, 2006 In the commission preparing the 1874 transit of Venus, debates about the choice of photographic techniques are illustrative of the stakes that would come to characterize the beginning of astronomy in France over the following decades.
Stéphane Le Gars
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REGAT: A permanent GPS network in Algeria, configuration and first results
Heliyon, 2019 The REGAT (“REseau Géodésique de l'ATlas”) geodetic network is composed of 53 continuously–recording GPS stations distributed in the Algerian Atlas. It spans the whole width of the Algerian coast and reaches 300 km inland, with inter-sites distance of ...
Abdel Karim Yelles-Chaouche +15 more
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Stark broadening parameter tables for O VII and Mg XI [PDF]
Serbian Astronomical Journal, 1998 By using the semiclassical-perturbation formalism, we have calculated electron-, proton-, and He III-impact line widths and shifts for 14 O VII multiplets and 18 Mg XI multiplets, of importance for research, diagnostic and modeling of various ...
Dimitrijević M.S., Sahal−Bréchot S.
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Applied Sciences, 2021 In order to better assess the seismic hazard in the northern region of Algeria, the shear-wave velocity structure in the Middle-Chelif Basin is estimated using ambient vibration single-station and array measurements. The Middle-Chelif Basin is located in
Abdelouahab Issaadi +4 more
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Stark broadening parameter tables for neutral zinc spectral lines [PDF]
Serbian Astronomical Journal, 1999 Using a semiclassical approach, we have calculated electron−, proton− and He II−impact line widths and shifts for 32 Zn I multiplets as a function of temperature and perturber density.
Dimitrijević M.S., Sahal−Bréchot S.
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Stark broadening parameter tables for In III, Tl III and Pb IV [PDF]
Serbian Astronomical Journal, 1998 Using a semiclassical approach, we have calculated electron-, proton-, and ionized helium-impact line widths and shifts for 20 In III multiplets for perturber densities 1014− 1020 cm−3 and 2 Tl III multiplets for perturber densities 1017 − 1020 ...
Dimitrijević M.S., Sahal−Bréchot S.
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Stark broadening parameter tables for F VI and Cl VII [PDF]
Serbian Astronomical Journal, 1998 Using a semiclassical approach, we have calculated electron−, proton−, and He III−impact line widths and shifts for 2 F VI and 10 Cl VII multiplets as a function of temperature and perturber density.
Dimitrijević M.S., Sahal−Bréchot S.
doaj +1 more source