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The impact of relativistic effects on cosmological parameter estimation
Christiane S. Lorenz, David Alonso, Pedro G. Ferreira
Future surveys will access large volumes of space and hence very long wavelength fluctuations of the matter density and gravitational field. It has been argued that the set of seco…
MeerKLASS: MeerKAT Large Area Synoptic Survey
Mario G. Santos, Michelle Cluver, Matt Hilton +35
We discuss the ground-breaking science that will be possible with a wide area survey, using the MeerKAT telescope, known as MeerKLASS (MeerKAT Large Area Synoptic Survey). The curr…
Measurement of the thermal Sunyaev-Zel'dovich effect around cosmic voids
David Alonso, J. Colin Hill, Renée Hložek +1
We stack maps of the thermal Sunyaev-Zel'dovich effect produced by the Planck Collaboration around the centers of cosmic voids defined by the distribution of galaxies in the CMASS…
Science-driven 3D data compression
David Alonso
Photometric redshift surveys map the distribution of matter in the Universe through the positions and shapes of galaxies with poorly resolved measurements of their radial coordinat…
Distinguishing between Neutrinos and time-varying Dark Energy through Cosmic Time
Christiane S. Lorenz, Erminia Calabrese, David Alonso
We study the correlations between parameters characterizing neutrino physics and the evolution of dark energy. Using a fluid approach, we show that time-varying dark energy models…
Calibrating photometric redshifts with intensity mapping observations
David Alonso, Pedro G. Ferreira, Matt J. Jarvis +1
Imaging surveys of galaxies will have a high number density and angular resolution yet a poor redshift precision. Intensity maps of neutral hydrogen (HI) will have accurate redshif…