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Dark Energy and Fate of the Universe
Dark Energy Fate Universe negative redshifts
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2012/2/21
We explore the ultimate fate of the Universe by using a divergence-free parametrization for dark energy $w(z)=w_0+w_a({\ln (2+z)\over 1+z}-\ln2)$. Unlike the CPL parametrization, this parametrization ...
The fate of Cyg X-1: an empirical limit on BH-NS merger rate
Cyg X-1:empirical limit BH-NS merger rate
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2011/10/12
The recent distance determination allowed precise estimation of the orbital parameters of Cyg X-1, which contains a massive 14.8 Msun BH with a 19.2 Msun O star companion. This system appears to be th...
THE FUTURE OF GALAXIES AND THE FATE OF INTELLIGENT LIFE
GALAXIES gaseous content INTELLIGENT LIFE
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2009/3/19
We investigate the influence of recent advances in research on the
gaseous content of the universe on our knowledge of star formation histories of spiral
galaxies. The discovery of low-redshift popu...
The Fate of Dwarf Galaxies in Clusters and the Origin of Intracluster Stars
Cosmology—galaxies clusters dwarfs interactions—methods numerical
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2010/9/15
The main goal of this paper is to compare the relative importance of destruction by tides vs. destruction by mergers, in order to assess if tidal destruction of galaxies in clusters is a viable scenar...