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  1. No Access

    Article

    Spectrophotometric studies of nonstable stars. IV. On the spectrum of V1057 Cygni

    D. Chalonge, L. Divan, L. V. Mirzoyan in Astrophysics (1982)

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    Chapter

    Temperatures and Radii of O Stars

    Angular diameters have been estimated for 18 O and 142 B stars using absolute intermediate-band photometry in the near infrared and they have been combined with integrated fluxes to yield effective temperature...

    A. B. Underhill, L. Divan, V. Doazan in Mass Loss and Evolution of O-Type Stars (1979)

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    Article

    Spectrophotometric studies of nonstable stars. III. The spectrum of FG Sagittae in 1968–1973

    D. Chalonge, L. Divan, L. V. Mirzoyan in Astrophysics (1977)

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    Chapter

    Quantitative Spectral Classification in the BCD System for LMC Supergiants

    In December 1970 and January 1971, spectra of 13 LMC supergiants have been obtained with the Chalonge spectrograph attached to the Cassegrain focus of the 152 cm ESO reflector at La Silla. The spectrophotometr...

    L. Divan in Spectral Classification and Multicolour Photometry (1973)

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    Chapter

    Distribution de L’energie Dans Le Spectre Ultraviolet de Quelques Étoiles

    On donne les résultats préliminaires des comparaisons directes entre quelques étoiles, O, B (et également de α Lyr) et une source terrestre préalablement rapportée au corps noir. Il semble que les gradients ul...

    D. Chalonge, L. Divan, C. T. Hua in Problems of Calibration of Absolute Magnit… (1973)

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    Chapter

    Calibration En Magnitudes Absolues De La Classification BCD. Application à La Détermination Du Module De Distance Du Grand Nuage De Magellan

    The calibration of the BCD stellar classification in absolute magnitudes (classification in three parameters λ 1, D, Ф b ) was used to determine ...

    L. Divan in Problems of Calibration of Absolute Magnitudes and Temperature of Stars (1973)

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    Article

    Spectrophotometric studies of nonstable stars II. On the spectrum of RW Aurigae in the region 3080–6100 Å

    D. Chalonge, L. Divan, L. V. Mirzoyan in Astrophysics (1971)