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10 papers · 2 filters
A gravitational-wave standard siren measurement of the Hubble constant
B. P. Abbott, R. Abbott, T. D. Abbott +1308
The detection of GW170817 in both gravitational waves and electromagnetic waves heralds the age of gravitational-wave multi-messenger astronomy. On 17 August 2017 the Advanced LIGO…
OzDES multifibre spectroscopy for the Dark Energy Survey: Three year results and first data release
M. J. Childress, C. Lidman, T. M. Davis +98
We present results for the first three years of OzDES, a six-year programme to obtain redshifts for objects in the Dark Energy Survey (DES) supernova fields using the 2dF fibre pos…
Spatial Clustering of Dark Matter Halos: Secondary Bias, Neighbor Bias, and the Influence of Massive Neighbors on Halo Properties
Andrés N. Salcedo, Ariyeh H. Maller, Andreas A. Berlind +5
We explore the phenomenon commonly known as halo assembly bias, whereby dark matter halos of the same mass are found to be more or less clustered when a second halo property is con…
Baryon acoustic oscillations from the complete SDSS-III Ly-quasar cross-correlation function at
Hélion du Mas des Bourboux, Jean-Marc Le Goff, Michael Blomqvist +22
We present a measurement of baryon acoustic oscillations (BAO) in the cross-correlation of quasars with the Ly-forest flux-transmission at a mean redshift . The measurem…
KiDS-450 + 2dFLenS: Cosmological parameter constraints from weak gravitational lensing tomography and overlapping redshift-space galaxy clustering
Shahab Joudaki, Chris Blake, Andrew Johnson +19
We perform a combined analysis of cosmic shear tomography, galaxy-galaxy lensing tomography, and redshift-space multipole power spectra (monopole and quadrupole) using 450 deg…
Small-scale structure and the Lyman- forest baryon acoustic oscillation feature
Christopher M. Hirata
The baryon-acoustic oscillation (BAO) feature in the Lyman- forest is one of the key probes of the cosmic expansion rate at redshifts z~2.5, well before dark energy is believed…