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  • 1985-1989  (19)
Material
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 336 (1988), S. 111-112 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] MASSIVE, short-lived stars have no business being located hundreds or thousands of parsecs out of the galactic plane, for the giant molecular clouds from which they normally form are confined to a layer with a scale height of 50-70 parsecs, and young stars, as a rule, move slowly. We have, ...
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 320 (1986), S. 311-312 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WHOLE careers and industries are built on extremes - the highest jump, the oldest fossil, the fastest horse. Thus it is perhaps not surprising that astronomers should, now and again, ask themselves which is the smallest star and does it differ significantly from the largest planet? The current best ...
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 317 (1985), S. 116-116 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WHICH STARS explode as supernova, and how do they do it? Astronomers have debated these questions since Walter Baade and Fritz Zwicky identified and defined supernovae as a distinct astronomical phenomenon in 1934'. Three recent contributions2 4 seem to have resolved at least one facet of this ...
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 313 (1985), S. 96-97 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] No TWO remnants of the stellar explosions we call supernovae are alike. But the Crab nebula (SN 1054) - complete with 33 msec pulsar and lots of helium, yet lacking the usual rapidly-moving, shock-edged supernova remnant shell - is even less alike than most. New observations, presented at a recent ...
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 318 (1985), S. 230-231 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE peculiar ?-ray source in the constellation Gemini, termed Geminga, is once again puzzling astronomers. Originally found by the SAS-2 satellite1 and later studied by ?-ray detectors both in space2 and on Earth3, this object presents strange features in every wavelength band/One of the strangest ...
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 313 (1985), S. 634-635 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE world around us is highly structured on many different scales. On some scales, we think we understand, or at least can reduce, the problem to basic physics: atoms and molecules follow from quantum electrodynamics, the masses of stars are determined by a balance between thermodynamic presssure ...
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 328 (1987), S. 474-474 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE hot interiors of massive stars produce most of the elements heavier than hydrogen and helium (metals to astronomers) that we see around us. Conversely, a star's initial small supply (0.01-4 per cent) of heavy elements is a major determinant of its observable properties and evolutionary history. ...
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 331 (1988), S. 488-488 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE rate at which supernova explosions occur enters into our models of galactic evolution, interstellar gas dynamics and other phenomena. And the rates we have been using are too big by a factor of about three. So conclude1 van den Bergh, McClure and Evans on the basis of systematic searches for ...
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 330 (1987), S. 212-212 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] NEARLY one-fifth of the extragalactic sky lurks out of sight, obscured by dust and crowded by images of stars in the disk of our own Milky Way. Astronomers, suspecting with Jane Austen's Catherine, that the locked drawer contains more interesting objects than the open ones, have long wished to ...
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 322 (1986), S. 686-687 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] NEUTRON stars form in supernova explosions, manifest themselves as radio pulsars or X-ray binaries, and fade away as their rotation slows, their magnetic fields decay away and their energy supplies are used up. This basic framework has been accepted for nearly 15 years, so that one might wonder ...
    Type of Medium: Electronic Resource
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