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Deconstructing Baryon Acoustic Oscillations: A Comparison of Methods
Anais Rassat, Adam Amara, Luca Amendola +6
The Baryon Acoustic Oscillations (BAOs) or baryon wiggles which are present in the galaxy power spectrum at scales 100-150Mpc/h are powerful features with which to constrain cosmol…
Dark Energy Phenomenology
Martin Kunz, Luca Amendola, Domenico Sapone
We discuss the phenomenology of the dark energy in first order perturbation theory, demonstrating that the dark energy cannot be fully constrained unless the dark matter is found,…
Planck priors for dark energy surveys
Pia Mukherjee, Martin Kunz, David Parkinson +1
Although cosmic microwave background (CMB) anisotropy data alone cannot constrain simultaneously the spatial curvature and the equation of state of dark energy, CMB data provide a…
On the degeneracy between primordial tensor modes and cosmic strings in future CMB data from Planck
Jon Urrestilla, Pia Mukherjee, Andrew R. Liddle +3
While observations indicate that the predominant source of cosmic inhomogeneities are adiabatic perturbations, there are a variety of candidates to provide auxiliary trace effects,…
Cosmic microwave anisotropies from BPS semilocal strings
Jon Urrestilla, Neil Bevis, Mark Hindmarsh +2
We present the first ever calculation of cosmic microwave background CMB anisotropy power spectra from semilocal cosmic strings, obtained via simulations of a classical field theor…
Why we need to see the dark matter to understand the dark energy
Martin Kunz
The cosmological concordance model contains two separate constituents which interact only gravitationally with themselves and everything else, the dark matter and the dark energy.…