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Charged Condensate and Helium Dwarf Stars
Gregory Gabadadze, Rachel A. Rosen
White dwarf stars composed of carbon, oxygen or heavier elements are expected to crystallize as they cool down below certain temperatures. Yet, simple arguments suggest that the he…
Comments on "A Supernova Brane Scan"
C. Deffayet, G. Dvali, G. Gabadadze
Recently we proposed that the acceleration of the Universe could be due to gravity leaking to extra dimensions. This scenario gives an alternative to the cosmological constant or q…
Accelerated Universe from Gravity Leaking to Extra Dimensions
Cédric Deffayet, Gia Dvali, Gregory Gabadadze
We discuss the idea that the accelerated Universe could be the result of the gravitational leakage into extra dimensions on Hubble distances rather than the consequence of non-zero…
Ultralight Scalars and Spiral Galaxies
Gia Dvali, Gregory Gabadadze, M. Shifman
We study some possible astrophysical implications of a very weakly coupled ultralight dilaton-type scalar field. Such a field may develop an (approximately stable) network of domai…