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Transactions of the International Astronomical Union, Volume 20 - Issue 2 - 1988

Contents

Page 2 of 3

Chapter V: Reports of Meetings of Commissions

  • Commission No. 21: Light of the Night Sky (Lumiere Du Ciel Nocturne)

  • Published online by Cambridge University Press:
    25 April 2016, pp. 211-218
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  • Commission No. 24: Photographic Astrometry (Astrometrie Photographique)

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    25 April 2016, pp. 219-222
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  • Problems of Infrared Extinction and Standardization

  • E.F. Milone
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    25 April 2016, pp. 232-234
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  • Extinction and Transformation: An Abstract

  • Andrew T. Young
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    25 April 2016, pp. 235-236
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  • The basic principles of heterochromatic extinction show that the approach used in the visible should not work well in the infrared, where molecular line absorption rather than continuous scattering dominates the extinction. Not only does this extinction change very rapidly with wavelength (so that stellar color becomes only weakly correlated with effective extinction), but also many of the lines are saturated (so that Forbe’s curve-of-growth effect is much more severe in the IR.) Furthermore, broadband IR colors are more undersampled than those in the visible, so aliasing errors make them correlate even less with extinction.

  • Commission No. 26: Double and Multiple Stars (Etoiles Doubles et Multiples)

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    25 April 2016, pp. 237-242
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  • Commission No. 27: Variable Stars (Etoiles Variables)

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    25 April 2016, pp. 243-246
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  • Commission No. 28: Galaxies (Galaxies)

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    25 April 2016, pp. 247-257
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  • Commission No. 29: Stellar Spectra (Spectres Stellaires)

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    25 April 2016, pp. 259-265
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  • Commission No. 30: Radial Velocities (Vitesses Radiales)

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    25 April 2016, pp. 267-274
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  • Commission No. 31: Time (L’Heure)

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    25 April 2016, pp. 275-278
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  • Commission No. 34: Interstellar Matter (Matiere Interstellaire)

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    25 April 2016, pp. 279-282
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  • Commission No. 35: Stellar Constitution (Constitution Des Etoiles)

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    25 April 2016, pp. 283-288
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  • Commission No. 36: Theory of Stellar Atmospheres (Theorie Des Atmospheres Stellaires)

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    25 April 2016, pp. 289-290
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  • Commission No. 37: Star Clusters and Associations (Amas Stellaires et Associations)

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    25 April 2016, pp. 291-297
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  • Commission No. 38: Exchange of Astronomers (Echange des Astronomes)

  • F. Graham-Smith
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    25 April 2016, p. 299
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  • Commission No. 40: Radio Astronomy (Radioastronomie)

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    25 April 2016, pp. 301-312
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  • Commission No. 41: History of Astronomy (Wstoire de L’Astronomie)

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    25 April 2016, pp. 313-314
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  • Commission No. 42: Close Binary Stars (Etoiles Doubles Serrees)

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    25 April 2016, pp. 315-317
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  • Commission No. 44: Astronomy from Space (L’Astronomie a Partir de L’Espace)

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    25 April 2016, pp. 319-321
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Page 2 of 3