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A New Cosmological Model of Quintessence and Dark Matter
Varun Sahni, Limin Wang
We propose a new class of quintessence models in which late times oscillations of a scalar field give rise to an effective equation of state which can be negative and hence drive t…
Evidence for Filamentarity in the Las Campanas Redshift Survey
Somnath Bharadwaj, Varun Sahni, B. S. Sathyaprakash +2
We apply Shapefinders, statistical measures of `shape' constructed from two dimensional partial Minkowski functionals, to study the degree of filamentarity in the Las Campanas Reds…
The Case for a Positive Cosmological Lambda-term
Varun Sahni, Alexei Starobinsky
Recent observations of Type 1a supernovae indicating an accelerating universe have once more drawn attention to the possible existence, at the present epoch, of a small positive La…
Disentangling the Cosmic Web I: Morphology of Isodensity Contours
Jens Schmalzing, Thomas Buchert, Adrian L. Melott +3
We apply Minkowski functionals and various derived measures to decipher the morphological properties of large-scale structure seen in simulations of gravitational evolution. Minkow…