1.3k citations · 11.9k across the 249 of their papers we have counts for
5 papers · 2 filters
Dark Energy: back to Newton?
Lucy Calder, Ofer Lahav
Dark Energy is currently one of the biggest mysteries in science. In this article the origin of the concept is traced as far back as Newton and Hooke in the seventeenth century. Ne…
Predicting spectral features in galaxy spectra from broad-band photometry
F. B. Abdalla, A. Mateus, W. A. Santos +3
We explore the prospects of predicting emission line features present in galaxy spectra given broad-band photometry alone. There is a general consent that colours, and spectral fea…
Decoding the spectra of SDSS early-type galaxies: New indicators of age and recent star formation
Ben Rogers, Ignacio Ferreras, Ofer Lahav +3
(Abridged) We apply Principal Component Analysis (PCA) to a sample of early-type galaxies from the Sloan Digital Sky Survey (SDSS) in order to infer differences in their star forma…
Neutrino Mass, Dark Energy, and the Linear Growth Factor
Angeliki Kiakotou, Oystein Elgaroy, Ofer Lahav
We study the degeneracies between neutrino mass and dark energy as they manifest themselves in cosmological observations. In contradiction to a popular formula in the literature, t…
The Future of the Local Large Scale Structure: the roles of Dark Matter and Dark Energy
Yehuda Hoffman, Ofer Lahav, Gustavo Yepes +1
We study the distinct effects of Dark Matter and Dark Energy on the future evolution of nearby large scale structures using constrained N-body simulations. We contrast a model of C…