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  • 1
    Electronic Resource
    Electronic Resource
    The properties of molecular clouds with high redshifts (z=2–3) (1984)
    Springer
    Astrophysics and space science 107 (1984), S. 51-59 
    Details
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract This paper deals with molecular clouds discovered in the absorption spectra (z=2–3) of distant quasars. It is argued that these clouds belong to the gaseous subsystems of young galaxies. We estimate the gas concentration to ben〈104 cm−3 in the cloud observed in the direction of the quasar PHL957. It is shown that this cloud is exposed to ultraviolet radiation. The UV-energy flux does not exceed the value typical for our Galaxy by an order of magnitude (F≃2×10−6 ergs cm−2 s−1 Å−1 at λ=2000 Å). The mechanisms maintaining the thermal balance in this cloud are discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00649613
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  • 2
    Electronic Resource
    Electronic Resource
    The production of light elements in unconventional cosmologies with VMOs (1986)
    Springer
    Astrophysics and space science 123 (1986), S. 103-115 
    Details
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The abundances of light elements (deuterium, helium and lithium) are calculated in unconventional cosmologies in which these elements are produced by interaction of fast α-particles ejected by massive pregalactic stars with a purely hydrogenous cosmological substrate. The number density and energetics of such stars needed for suitable production of light elements are estimated. It is shown that the models always lead to overproduction of lithium. The intensity of ultraviolet, X-ray, and γ-ray emission caused by explosions of pregalactic massive stars is calculated. The distortions of cosmic background radiation by Compton losses of electrons heated by explosive stars are also calculated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00649126
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  • 3
    Electronic Resource
    Electronic Resource
    Observational manifestations of gaseous baryon dark matter (2000)
    Springer
    Astronomy reports 44 (2000), S. 65-75 
    Details
    ISSN: 1562-6881
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The paper considers possible observational implications of the presence of dark matter in the Galaxy in the form of dense gas clouds—clumpuscules with masses M c ∼10−3 M ⊙ and radii R c∼3×1013 cm. The existence of such clouds is implied by modern interpretations of extreme scattering events—variations in quasar radio fluxes due to refraction in dense plasma condensations in the Galactic halo. The rate of collisions between these clouds is shown to be rather high: from 1 to 10M ⊙ per year is ejected into the interstellar medium as a result of such collisions. The optical continuum and 21-cm emission from hot post-collision gas could be observable. Gas clouds composed of dark matter could be formed around O stars in an H II region with radius R∼30 pc and emission measure EM⋍20 cm−6 pc. They could also be observable in the Hα line. The evaporation of clumpuscules by external ionizing radiation could be a substantial source of matter for the interstellar medium. Assuming that the total mass of matter entering the interstellar medium over the Hubble time does not exceed the mass of luminous matter in the Galaxy, upper limits are found for the cloud radii (R c〈3.5×1012 cm) and the contribution of clouds to the surface density of the Galaxy (〈50M ⊙pc−2). Dissipation of the kinetic energy of matter lost by clumpuscules could provide an efficient mechanism for heating gas in the Galactic halo.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1134/1.163829
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  • 4
    Electronic Resource
    Electronic Resource
    The induced star formation: Combustion waves and star bursts (1989)
    Springer
    Astrophysics and space science 152 (1989), S. 43-56 
    Details
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract One of interactions of young active stars with interstellar gas is excitation of shock waves, that compress the gas and favour the formation of new generation of stars. Thus, a positive feedback between stellar and gaseous constituents is realized. When spread from point to point this interaction gives rise to a stationary wave of star formation. The properties of such a wave are analyzed both in homogeneous and clumped media. The stationary wave of star formation is a natural mechanism that can provide a coherent behaviour (such as global star bursts) of large star-gas systems. Particularly, the origin of extreme and intermediate halo populations in our Galaxy are possibly produced by large-scale star burst, that was initiated by stationary wave of formation of Population III stars.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00645985
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  • 5
    Electronic Resource
    Electronic Resource
    The physics of the galactic halo gas (1989)
    Springer
    Astrophysics and space science 152 (1989), S. 223-238 
    Details
    ISSN: 1572-946X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract The available data speak in favour of space and time inhomogeneity of gaseous corona of our Galaxy. The observedCIV and SiIV ions are formed mainly by fast photons and localized inHII-clouds of the galactic halo. On the other hand, theNV ions are thermally ionized and localized in the gas corresponding to a transformation of hot intercloud coronal gas in theHII-clouds. TheHII-clouds exhibit downward the gas flow. The galactic fountain can eject the interstellar matter up to height of 1 kpc. Such ejections may be also displayed inCIV, SiIV, and partiallyNV, and partiallyNV absorptions. But large gaseous corona extending up to 3–5 kpc proves to be mass-unbalanced. It is possible that the existence of corona is evidence for violent star formation in the galactic disc in the recent past.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00636308
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  • 6
    Electronic Resource
    Electronic Resource
    Thermal instability behind a radiative shock (1979)
    Springer
    Astrophysics 15 (1979), S. 224-228 
    Details
    ISSN: 1573-8191
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01006045
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  • 7
    Electronic Resource
    Electronic Resource
    On the origin of high-velocity HI clouds (1977)
    Springer
    Astrophysics 13 (1977), S. 421-423 
    Details
    ISSN: 1573-8191
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01006621
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  • 8
    Electronic Resource
    Electronic Resource
    Are high-velocity HI clouds galactic objects? (1980)
    Springer
    Astrophysics 16 (1980), S. 159-163 
    Details
    ISSN: 1573-8191
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01005463
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  • 9
    Electronic Resource
    Electronic Resource
    Explosive scenario of the origin of population II stars (1988)
    Springer
    Astrophysics 29 (1988), S. 610-618 
    Details
    ISSN: 1573-8191
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01005966
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  • 10
    Electronic Resource
    Electronic Resource
    On the chemical composition of pregalactic matter (1989)
    Springer
    Astrophysics 30 (1989), S. 267-273 
    Details
    ISSN: 1573-8191
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01003957
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