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  • 1
    Monograph available for loan
    Monograph available for loan
    Planetary atmospheres : symposium No. 40 held in Marfa, Texas, U.S.A., October 26 - 31, 1969 (1971)
    Dordrecht : Reidel
    Details Availability
    Call number: MOP 43337 / Mitte
    Type of Medium: Monograph available for loan
    Pages: XVII, 408 S. : Ill.
    ISBN: 9027701652
    Series Statement: Symposium / International Astronomical Union 40
    Location: MOP - must be ordered
    Branch Library: GFZ Library
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  • 2
    Electronic Resource
    Electronic Resource
    The atmosphere of Titan (1982)
    Springer
    Journal of molecular evolution 18 (1982), S. 150-156 
    Details
    ISSN: 1432-1432
    Keywords: Titan ; Planetary atmoshperes ; Chemical evolution ; Planets ; Satellites
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The discovery that Titan had an atmosphere was made by the identification of methane in the satellite's spectrum in 1944. But the abundance of this gas and the identification of other major constituents required the 1980 encounter by the Voyager 1 spacecraft. in the intervening years, traces of C2H2, C2H4, C2H6 and CH3D had been posited to interpret emission bands in Titan's IR spectrum. The Voyager infrared Spectrometer confirmed that these gases were present and added seven more. The atmosphere is now known to be composed primarily of molecular nitrogen. But the derived mean molecular weight suggests the presence of a significant amount of some heavier gas, most probably argon. It is shown that this argon must be primordial, and that one can understand the evolution of Titan's atmosphere in terms of degassing of a mixed hydrate dominated by CH4, N2 and36Ar. This model satisfactorily explains the absence of neon and makes no special requirements on the satellite's surface temperature. The organic chemistry taking place on Titan today invites comparision with chemical evolution on the primitive Earth prior to the origin of life.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01733040
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  • 3
    Electronic Resource
    Electronic Resource
    The Martian atmosphere: Some unanswered questions (1979)
    Springer
    Journal of molecular evolution 14 (1979), S. 5-12 
    Details
    ISSN: 1432-1432
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary The study of the Martian atmosphere and its significance for the possible origin of life on Mars is still very incomplete. Further investigations are needed to define the total volatile inventory, the early history of the atmosphere, and the relationship of the atmosphere to the question of indigenous life. In addition, studies of Venus, comets, and the Jupiter system will add significantly to our abilities to understand the early history of Mars.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01732363
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  • 4
    Electronic Resource
    Electronic Resource
    Planetary science Huygens rediscovers Titan (2005)
    [s.l.] : Nature Publishing Group
    Nature 438 (2005), S. 756-757 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Ever since the two Voyager spacecraft passed the Solar System's sixth planet in 1980 and 1981, Saturn — with its beautiful rings and retinue of more than 30 satellites cocooned in a complex, pulsating magnetosphere — has insistently called on us to return. The joint NASA and European ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/438756a
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  • 5
    Electronic Resource
    Electronic Resource
    A low-temperature origin for the planetesimals that formed Jupiter (1999)
    [s.l.] : Macmillian Magazines Ltd.
    Nature 402 (1999), S. 269-270 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The four giant planets in the Solar System have abundances of ‘metals’ (elements heavier than helium), relative to hydrogen, that are much higher than observed in the Sun. In order to explain this, all models for the formation of these planets rely on an influx of solid ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/46232
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  • 6
    Electronic Resource
    Electronic Resource
    Radiation Balance of Jupiter and Saturn (1965)
    [s.l.] : Nature Publishing Group
    Nature 208 (1965), S. 476-477 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Trafton3 has pointed out that the pressure-induced dipole absorption of H2 may produce significant absorption in the case of Jupiter. He finds that temperatures of the order of 147 K are not difficult to maintain by an atmospheric greenhouse effect depending only on this absorber. Owen4 has ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/208476b0
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  • 7
    Electronic Resource
    Electronic Resource
    Production of Organic Molecules by Proton Irradiation (1974)
    [s.l.] : Nature Publishing Group
    Nature 247 (1974), S. 100-101 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The early experiments1-5 employed mixtures of methane and ammonia4'5, sometimes with hydrogen1 or water2'3; and indeed amino acids (in the experiments with H2O) and related organic molecules have been produced. More recently6-8, in attempts to simulate atmospheres likely to contain sulphur (those ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/247100a0
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  • 8
    Electronic Resource
    Electronic Resource
    Cosmological implications of helium and deuterium abundances on Jupiter and Saturn (1983)
    [s.l.] : Nature Publishing Group
    Nature 302 (1983), S. 215-218 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The determination of relative abundances of helium and deuterium in Jupiter and Saturn provides estimates of the primordial abundances of these elements. The values so inferred can be compared with theoretical predictions of the standard model of the big-bang theory as a test of the model and ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/302215a0
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  • 9
    Electronic Resource
    Electronic Resource
    Speculative astronomy (1994)
    [s.l.] : Nature Publishing Group
    Nature 368 (1994), S. 412-412 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WHAT if this book didn't exist? We would miss the author's playful speculations about alternative Earths, about the ways in which our planet might have evolved if circumstances surrounding its origin and early history had been different. But we would be spared a lot of misinformation. Among ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/368412a0
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  • 10
    Electronic Resource
    Electronic Resource
    Noble gases in atmospheres (1993)
    [s.l.] : Nature Publishing Group
    Nature 361 (1993), S. 693-694 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] OWEN AND BAR-NUN REPLY - Dr Ulrich Ott (Max Planck Inst. fur Chemie, Mainz) has kindly pointed out to us that we erred in calling the straight line on our log-log plot a mixing line, represent-ing the blending of two distinct volatile reservoirs. Ozima and Wada make the same observation above. The ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/361693b0
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