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5 papers · 2 filters
UV Signposts of Resonant Dynamics in Disk Galaxies
William H. Waller, Christine Winslow, Michael Fanelli +1
Imaging in the restframe ultraviolet has proven to be an effective and vital means of tracing dynamical patterns of star formation in galaxies out to high redshifts. Using images f…
Quintessential inflation
P. J. E. Peebles, A. Vilenkin
We present an explicit observationally acceptable model for evolution from inflation to the present epoch under the assumption that the entropy and matter of the familiar universe…
Neutrino transport: no asymmetry in equilibrium
Alexander Kusenko, Gino Segre, Alexander Vilenkin
A small asymmetry in the flux of neutrinos emitted by a hot newly-born neutron star could explain the observed motions of pulsars. However, even in the presence of parity-violating…
Signatures of Topological Defects
V. S. Berezinsky, P. Blasi, A. Vilenkin
We argue that due to various restrictions cosmic strings and monopole-string networks are not likely to produce the observed flux of ultra-high energy cosmic rays (UHECR). Among th…
The density parameter and the Anthropic Principle
Jaume Garriga, Takahiro Tanaka, Alexander Vilenkin
In the context of open inflation, we calculate the probability distribution for the density parameter . A large class of two field models of open inflation do not lead to infini…