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  • 1975-1979  (18)
Source
Material
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    On the detection of large-scale inhomogeneities in the Universe (1979)
    [s.l.] : Nature Publishing Group
    Nature 280 (1979), S. 39-40 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A matter perturbation, with excess mass £M, retards the motion of our Galaxy relative to the overall expansion of the Universe with a peculiar velocity OVG given, from energy considerations, by Here the perturbation is at a distance r from our Galaxy and VG is the Hubble flow velocity over ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/280039a0
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Gravitational waves confirmed at Texas Symposium (1979)
    [s.l.] : Nature Publishing Group
    Nature 277 (1979), S. 267-268 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE peripatetic Texas Symposium on Relativistic Astrophysics went to Munich in 1978* with, for the first time, participants from the People's Republic of China. Traditionally, the symposium is not regarded primarily as a forum for announcing the latest results, but more as a chance to review ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/277267a0
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    More on X-ray bursts (1978)
    [s.l.] : Nature Publishing Group
    Nature 276 (1978), S. 561-562 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] SPRING and autumn are the seasons of the rapid burster. This object produces up to several thousand X-ray bursts per day over intervals of 2-6 weeks in March/April and September/October. Its location near the Galactic Centre means that each burst, of but a few seconds duration, emits in X-rays as ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/276561a0
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    γ -Rays from γ Geminorum? (1978)
    [s.l.] : Nature Publishing Group
    Nature 271 (1978), S. 634-635 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The star y Gem has rav = 1.9 mag and has been classified as AOIV (ref. 5) and A1III (ref. 6). Parallax measurements yield a distance estimate of d 30 pc (ref. 7). We therefore require / 0.17. We assume the star to have a bolometric luminosity £boi 6x 1035 erg s"1, a mass M\ 3A/Q and a ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/271634a0
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    First results from the Einstein Observatory (1979)
    [s.l.] : Nature Publishing Group
    Nature 279 (1979), S. 371-372 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE successful launch of HEAO-B in November 1978 opened a new era in X-ray astronomy. Renamed the Einstein Observatory, the satellite contains the first orbital X-ray telescopes to image cosmic X-ray sources. Four nested grazing incidence telescopes providing a resolution of a few seconds of arc ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/279371a0
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    More news on SS 433 (1979)
    [s.l.] : Nature Publishing Group
    Nature 279 (1979), 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] THE moving emission lines of SS 433 were one of the most exciting astronomical discoveries last year (see News and Views 277, 267; 1979). Since the object became visible in the night sky this year many telescopes have been following its behaviour. At the Spring meeting of the American Physical ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/279291a0
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Electron scattering in X ray-emitting galaxies (1977)
    [s.l.] : Nature Publishing Group
    Nature 269 (1977), S. 672-673 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] The optical depth to electron scattering, ies, is unity when 7VH1.5x 1024 cm-2. Consequently ies is -10 and 5% for Cen A and NGC4151 respectively. Higher values of ies may apply if the heavy elements are underabundant, or if a significant fraction of them is completely ionised. A scattered flux of ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/269672a0
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    X-ray bursts from dense clouds (1977)
    [s.l.] : Nature Publishing Group
    Nature 268 (1977), S. 607-608 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] Consider first what happens when a neutron star or white dwarf, with velocity v km s *, accretes from a dense cloud such as NGC 5367. Much of the material is probably in the form of molecular hydrogen of density n4 I where n 104 4 cm 3 at a temperature T2 〈 1 where T= 102 T2 K (ref. 7). X ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/268607a0
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    Paper (German National Licenses)
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  • 9
    Electronic Resource
    Electronic Resource
    Globular clusters as a source of X-ray emission from the neighbourhood of M87 (1976)
    [s.l.] : Nature Publishing Group
    Nature 263 (1976), S. 301-302 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] There are relatively few intrinsically bright optically observed globular clusters in our Galaxy. Counts of objects in the vicinity of M87, however, reveal that it has an extensive halo of globular clusters17'18, the number of which may exceed 10,000 within a radius of 23 arc min (ref. 19). The ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/263301b0
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    Paper (German National Licenses)
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  • 10
    Electronic Resource
    Electronic Resource
    Do superheavy elements imply the existence of black holes? (1976)
    [s.l.] : Nature Publishing Group
    Nature 263 (1976), S. 114-114 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] We note that superheavy elements, such as those discovered and others much less stable in our environment, must exist in the outer layers of a neutron star3. Moreover, ideal conditions for the production of superheavy nuclei (high neutron flux and rapid ? decays) are found in the disruption of a ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/263114a0
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    Paper (German National Licenses)
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