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The 2-degree Field Lensing Survey: photometric redshifts from a large new training sample to r<19.5
Christian Wolf, Andrew Johnson, Maciej Bilicki +13
We present a new training set for estimating empirical photometric redshifts of galaxies, which was created as part of the 2dFLenS project. This training set is located in a 700 sq…
Measuring the 2D Baryon Acoustic Oscillation signal of galaxies in WiggleZ: Cosmological constraints
Samuel R. Hinton, Eyal Kazin, Tamara M. Davis +12
We present results from the 2D anisotropic Baryon Acoustic Oscillation (BAO) signal present in the final dataset from the WiggleZ Dark Energy Survey. We analyse the WiggleZ data in…
2dFLenS and KiDS: Determining source redshift distributions with cross-correlations
Andrew Johnson, Chris Blake, Alexandra Amon +16
We develop a statistical estimator to infer the redshift probability distribution of a photometric sample of galaxies from its angular cross-correlation in redshift bins with an ov…
Characterising Dark Energy through supernovae
Tamara M. Davis, David Parkinson
Type Ia supernovae are a powerful cosmological probe, that gave the first strong evidence that the expansion of the universe is accelerating. Here we provide an overview of how sup…
The 2-degree Field Lensing Survey: design and clustering measurements
Chris Blake, Alexandra Amon, Michael Childress +16
We present the 2-degree Field Lensing Survey (2dFLenS), a new galaxy redshift survey performed at the Anglo-Australian Telescope. 2dFLenS is the first wide-area spectroscopic surve…
A cosmographic analysis of the transition to acceleration using SN-Ia and BAO
Daniel Muthukrishna, David Parkinson
We explore the distance-redshift relation using a cosmographic methodology, and show how the cosmographic parameters can be used to determine the redshift of transition from decele…