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  • 1
    Monograph available for loan
    Monograph available for loan
    A tentative explanation of the negative polarization in diffuse reflection (1955)
    Stockholm [u.a.] : Almqvist & Wiksell
    Associated volumes
    Details Availability
    Call number: MOP 19738
    In: Stockholms Observatoriums annaler
    Type of Medium: Monograph available for loan
    Pages: 10 S.
    Series Statement: Stockholms Observatoriums annaler 18,8
    Location: MOP - must be ordered
    Branch Library: GFZ Library
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  • 2
    Electronic Resource
    Electronic Resource
    Effects of Polarisation in the Spectrum of β Lyræ (1934)
    [s.l.] : Nature Publishing Group
    Nature 134 (1934), S. 534-534 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IT was suggested by me in a brief paper in 19291 that such polarisation effects as appear in connexion with resonance radiation may be present in some celestial sources of light. Comets and high prominences were mentioned by me as promising objects in this respect. As a matter of ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/134534a0
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  • 3
    Electronic Resource
    Electronic Resource
    Polarized Thermal Emission from Narrow Tungsten Filaments (1961)
    [s.l.] : Nature Publishing Group
    Nature 192 (1961), S. 254-254 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] By using different colour screens I have been able to establish an increase of polarization with wavelength. The determinations are presented in Table 1. The effective wave-length X transmitted through the filters has been estimated with a spectroscope. The degree of polarization was measured with ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/192254a0
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  • 4
    Electronic Resource
    Electronic Resource
    A New Monochromator (1938)
    [s.l.] : Nature Publishing Group
    Nature 141 (1938), S. 291-291 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN a letter published in NATURE of January 22, I described a monochromator based on the principle of interference of polarized light in a number of quartz plates, and some experiments carried out with such an instrument. From a private communication received from Dr. B. Lyot on January 29, I ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/141291a0
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  • 5
    Electronic Resource
    Electronic Resource
    A New Monochromator (1938)
    [s.l.] : Nature Publishing Group
    Nature 141 (1938), S. 157-158 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IT is well known that chromatic polarization can be used for the purpose of obtaining colour-filters. In general, such a filter can be used only for selecting a very broad region of the spectrum. K. W. Wood1 showed in 1914 that a thick quartz plate between two polarizing prisms is a ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/141157a0
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  • 6
    Electronic Resource
    Electronic Resource
    The Possibility of Observing an Emission Spectrum of the Calcium Substratum in the Galaxy (1929)
    [s.l.] : Nature Publishing Group
    Nature 124 (1929), S. 179-180 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN a very interesting paper, “Physical Properties of a Gaseous Substratum in the Galaxy” (Astrophys. Jour., 69, p. 7; 1929), Gerasimovi&cbreve; and Struve have recently given strong evidence of a uniform gaseous medium of calcium in interstellar space. The absorption coefficient per ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/124179b0
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  • 7
    Electronic Resource
    Electronic Resource
    Subtractive Dispersion Spectrographs of Possible Use in Ultra-violet Stellar Research (1967)
    [s.l.] : Nature Publishing Group
    Nature 215 (1967), S. 606-607 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Methods using a prism and a grating. This principle has already been described by Wood1 as a "partial achro-matization by means of a grating", but it does not seem to have been used in ultra-violet stellar research. By subtracting the dispersion of a prism from that produced by a grating, a very ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/215606a0
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  • 8
    Electronic Resource
    Electronic Resource
    A Suggested Method for Increasing the Resolving Power of a Spectrograph (1965)
    [s.l.] : Nature Publishing Group
    Nature 207 (1965), S. 1284-1285 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The principle of such measurements is given in Fig. 1, showing a grating spectrograph with the entrance slit in Si and an exit slit in Sz after which the light is recorded by a phototube. In front of the slit $2 a double image unit is placed composed of a Wollaston prism W of small ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/2071284a0
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  • 9
    Electronic Resource
    Electronic Resource
    Selective diffraction with possible application to solar research (1974)
    Springer
    Solar physics 34 (1974), S. 253-258 
    Details
    ISSN: 1573-093X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The writer describes diffraction phenomena in transmission gratings made as strips of alternating color. He discusses diffraction in slits formed in semitransparent material including liquid or gaseous layers and particularly when line- and band-absorption is present. He suggests that atmospheric seeing should be influenced by selective diffraction in telluric lines. He also discusses possible seeing effects in the solar atmosphere and prominences and hints at the possibility that irregular or semiregular selective diffraction may appear in the deep layers of sunspots possibly contributing to the scattering of light.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00149619
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  • 10
    Electronic Resource
    Electronic Resource
    An Hα filament observed against the chromosphere at the limb (1968)
    Springer
    Solar physics 3 (1968), S. 354-356 
    Details
    ISSN: 1573-093X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract Observations are reported of an Hα filament clearly visible in the image of the chromosphere at the limb as well as in the Hα spectrum of the same part of the chromosphere. Observations of this kind may give valuable information about the absorption mechanism at work in filaments.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00155171
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