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  • 1
    Electronic Resource
    Electronic Resource
    The meeting with Dr Cameron (1987)
    [s.l.] : Nature Publishing Group
    Nature 325 (1987), S. 494-494 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A. G. W. (Al) Cameron has made many notable contributions to astrophysics in the past 30 years. He was trained as a nuclear physicist, but a latent interest in astrophysics was activated by Paul Mer-rill's 1952 discovery of the unstable element technetium in stars. Cameron started to work on ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/325494a0
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  • 2
    Electronic Resource
    Electronic Resource
    Stellar evolution (1979)
    [s.l.] : Nature Publishing Group
    Nature 278 (1979), S. 817-817 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Stellar Evolution. Second edition. By A. J. Meadows. Pp. 171. (Pergamon: Oxford, 1978.) Hardback £7.50; paperback £2.50. THE subject of stellar structure and evolution is believed to be the branch of astrophysics which is best understood. Because most parts of physics- such as nuclear ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/278817a0
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  • 3
    Electronic Resource
    Electronic Resource
    Neutrino stability and cosmological helium production (1978)
    [s.l.] : Nature Publishing Group
    Nature 274 (1978), S. 232-234 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Since the discovery of the cosmic microwave radiation1, and the realisation that most astronomical objects whose chemical composition is known have a similar helium content2, it has been generally accepted that most of the helium was produced in the very early stages of the Universe. It is also ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/274232a0
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  • 4
    Electronic Resource
    Electronic Resource
    Half Life of the Neutron and Cosmological Helium Production (1968)
    [s.l.] : Nature Publishing Group
    Nature 217 (1968), S. 433-433 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Since the measurements of Sosnovsky et al.1, the best value for the neutron half life has been 11.7 min. Recently, a new measurement by Christensen et al.2 has given the significantly lower value of 10.8 min. Although there may be further measurements before this result is accepted, it had earlier ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/217433a0
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  • 5
    Electronic Resource
    Electronic Resource
    Helium Production in an Anisotropic Big-Bang Cosmology (1966)
    [s.l.] : Nature Publishing Group
    Nature 209 (1966), S. 1278-1279 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THERE has recently been much interest in the helium content of the universe. A variety of observations, mainly on objects in our own Galaxy but some of nearby galaxies, have suggested that the helium abundance relative to hydrogen may be rather uniform with about one helium atom to every eleven ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/2091278a0
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  • 6
    Electronic Resource
    Electronic Resource
    Additional results for unstable stratified toroidal magnetic fields in stars (1981)
    Springer
    Astrophysics and space science 75 (1981), S. 521-526 
    Details
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract General conditions for adiabatic instability of weak axisymmetric toroidal magnetic fields are obtained. In particular all fields which haveH ϕ=0 and ∂H ϕ 2 /∂δ〉0 simultaneously are unstable. This includes all fields which exist near to the axis of symmetry and, indeed, any without an infinite current density anywhere. A detailed discussion is given of fields with an angular dependenceH ϕ 2 ∼|P ℓ (cos θ)|. These fields are dynamically unstable with respect to both axisymmetric and non-axisymmetric perturbations for all values of the azimuthal wave number |m|. The maximum growth rates are independent ofm and they are largest for the fields that are defined in the regions closest to the polar axis.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00648660
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  • 7
    Electronic Resource
    Electronic Resource
    Book reviews (1981)
    Springer
    Space science reviews 28 (1981), S. 105-118 
    Details
    ISSN: 1572-9672
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00353557
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  • 8
    Electronic Resource
    Electronic Resource
    Cheap big science (1991)
    [s.l.] : Nature Publishing Group
    Nature 354 (1991), S. 10-10 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SIR - In Sir Mark Richmond's speech "A future for British science" (Nature 353, 379; 1991), he states: "Some research topics are so expensive (or otherwise demanding) that only a few institutions are able to participate in them. Examples are astronomy (at least when it requires large ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/354010b0
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  • 9
    Electronic Resource
    Electronic Resource
    Star appeal (1984)
    [s.l.] : Nature Publishing Group
    Nature 310 (1984), S. 706-706 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WHEN a star explodes as a supernova, there is a short period in which it is as luminous as a whole galaxy of ordinary stars. The sudden appearance of such a "new star" has in the past been regarded as a portent, and two supernovae observed in 1572 and 1604 played a part in the acceptance of the new ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/310706b0
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  • 10
    Electronic Resource
    Electronic Resource
    The Universe defined (1992)
    [s.l.] : Nature Publishing Group
    Nature 356 (1992), S. 395-396 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE briefest of perusals of these two reference books suffices to show just how dramatically our knowledge of the Universe has increased in the past 50 years. In 1940, observational astronomy meant optical astronomy, whereas now the Universe is studied in all regions of the electromagnetic ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/356395b0
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