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The Invisible Universe
Article explores the concept of dark matter, a postulate introduced to explain observed anomalies in the motion of cosmic objects, such as stars at the outskirts of galaxies and galaxies within clusters, that do not align with Newton’s law of universal ...
Alexander Fritz
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Article explores the concept of dark matter, a postulate introduced to explain observed anomalies in the motion of cosmic objects, such as stars at the outskirts of galaxies and galaxies within clusters, that do not align with Newton’s law of universal ...
Alexander Fritz
semanticscholar +1 more source
SPIE Proceedings, 2004
Dark matter is one of the most fundamental and perplexing issues of modern physics. Its presence is deduced from a straightforward application of Newton’s theory of gravity to astronomical systems whose dynamical motion should be simple to understand. The success of Newton’s theory in describing the behavior of the solar system was one ...
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Dark matter is one of the most fundamental and perplexing issues of modern physics. Its presence is deduced from a straightforward application of Newton’s theory of gravity to astronomical systems whose dynamical motion should be simple to understand. The success of Newton’s theory in describing the behavior of the solar system was one ...
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Possible interaction between baryons and dark-matter particles revealed by the first stars
Nature, 2018The cosmic radio-frequency spectrum is expected to show a strong absorption signal corresponding to the 21-centimetre-wavelength transition of atomic hydrogen around redshift 20, which arises from Lyman-α radiation from some of the earliest stars.
R. Barkana
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Dark matter and dark matter candidates
Advances in Space Research, 2008Abstract The nature and identity of the dark matter of the Universe is one of the most challenging problems facing modern cosmology. Only 5% of the energy density of the Universe can be associated with known forms of matter. Problems for baryonic and neutrino dark matter imply the necessity to search beyond the standard model for dark matter ...
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Scientific American, 2016
The article reports on the move of scientists to take a second look at conditions of dark matter due to disappointments to discover these elusive particles known as weakly interacting massive particles (WIMP). Topics include the time spent by scientists to look for flashes of light emanating from WIMPs striking xenon nuclei, and the possibility that ...
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The article reports on the move of scientists to take a second look at conditions of dark matter due to disappointments to discover these elusive particles known as weakly interacting massive particles (WIMP). Topics include the time spent by scientists to look for flashes of light emanating from WIMPs striking xenon nuclei, and the possibility that ...
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2017
In this paper, we introduce the astrophysical problem of dark matter (DM) mainly focusing on the observational/experimental point of view. Even though DM cannot be observed directly, there are plenty of indirect observations supporting that there is more mass than we can see. This is the case for the observed properties of galaxies, galaxy clusters and
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In this paper, we introduce the astrophysical problem of dark matter (DM) mainly focusing on the observational/experimental point of view. Even though DM cannot be observed directly, there are plenty of indirect observations supporting that there is more mass than we can see. This is the case for the observed properties of galaxies, galaxy clusters and
openaire +1 more source