Results 151 to 160 of about 1,065 (171)
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Oort and Extragalactic Astronomy
1980Our understanding of the nature of external galaxies, incomplete as it still is, has depended cast essentially on the understanding of our own Milky Way. And one cannot think of any facet of knowledge about our Galaxy without paying tribute to Jan Oort’s elucidation of its mysteries.
Margaret Burbidge, Geoffrey Burbidge
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Recent Advances in Far-Extragalactic Radio Astronomy
Publications of the Astronomical Society of the Pacific, 1976exaly +2 more sources
HyperLeda: Virtual Instruments for Extragalactic Astronomy
2006HyperLeda offers a series of tools of interest for Galactic and extra-galactic astronomy. The most prominent service is the LEDA catalogue which presents 70 homogenized parameters collected for over 3 million galaxies.
Prugniel, Philippe +4 more
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Using SNAP for Galactic & extragalactic astronomy
Astrophysics and Space Science, 2007SNAP, the SuperNova Acceleration Probe, is planned as a space-based telescope designed specifically to search for and monitor cosmological supernovae and weak lensing. In this paper we propose some other mission objectives which are of great importance in the fields of Galactic and extragalactic astronomy and which can be done as by-products with the ...
Olga K. Sil’chenko +2 more
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Nebular and Extragalactic Astronomy from Space in the Optical Region
1980This review deals with the impact that astronomical observations from outer space will have on the fields of nebular and extragalactic research. The discussion will be confined to the classical optical region of the electromagnetic spectrum extended to the adiacent UV and IR.
CAPACCIOLI, MASSIMO, Dodorico, S.
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The role of magnetic fields in extragalactic astronomy
Astrophysics and Space Science, 1981The evidence is reviewed for a universal magnetic field of strength 10−9–10−8G; it has been extended to include the diffuse fields of galactic clusters and the extensive magnetic halos of spiral galaxies. Some likely effects of the universal fieldB 0 are as follows: (1) As suggested previously,B 0 is coupled to protogalaxies and evolves into magnetic ...
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EXTRAGALACTIC X‐RAY ASTRONOMY WITH THE EINSTEIN OBSERVATORY
Annals of the New York Academy of Sciences, 1981The flight of the Einstein X-ray Observatory has brought about a qualitative change in observational capabilities in the 0.2-3.0 keV energy range, with a several hundred-fold increase in sensitivity over previous instruments that allows the detection and study of X-rays from objects as distant as quasars, at redshifts greater than 3.0.
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Extragalactic Radio Sources and X-Ray Astronomy
1981I have been asked to survey a number of aspects of extragalactic radio sources in which the radio and X-ray observations come together to provide complementary information about physical conditions in active systems. Some of these aspects are already well known, for example the X-ray emission of clusters of galaxies and of Type I Seyfert galaxies, but ...
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High-Energy Extragalactic Neutrino Astrophysics
Annual Review of Nuclear and Particle Science, 2022Marcos Santander +2 more
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