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TDCOSMO. I. An exploration of systematic uncertainties in the inference of from time-delay cosmography
M. Millon, A. Galan, F. Courbin +22
Time-delay cosmography of lensed quasars has achieved 2.4% precision on the measurement of the Hubble constant, . As part of an ongoing effort to uncover and control systemati…
SHARP -- VI. Evidence for CO (1-0) molecular gas extended on kpc-scales in AGN star forming galaxies at high redshift
C. Spingola, J. P. McKean, S. Vegetti +8
We present a study of the stellar host galaxy, CO (10) molecular gas distribution and AGN emission on 50 to 500 pc-scales of the gravitationally lensed dust-obscured AGN MG J075…
The dichotomy of dark matter fraction and total mass density slope of galaxies over five dex in mass
C. Tortora, L. Posti, L. V. E. Koopmans +1
We analyse the mass density distribution in the centres of galaxies across five orders of magnitude in mass range. Using high-quality spiral galaxy rotation curves and infrared pho…
Spectroscopic confirmation and modelling of two lensed quadruple quasars in the Dark Energy Survey public footprint
C. Spiniello, A. V. Sergeyev, L. Marchetti +12
Quadruply lensed quasars are extremely rare objects, but incredibly powerful cosmological tools. Only few dozen are known in the whole sky. Here we present the spectroscopic confir…
LinKS: Discovering galaxy-scale strong lenses in the Kilo-Degree Survey using Convolutional Neural Networks
C. E. Petrillo, C. Tortora, G. Vernardos +17
We present a new sample of galaxy-scale strong gravitational-lens candidates, selected from 904 square degrees of Data Release 4 of the Kilo-Degree Survey (KiDS), i.e., the "Lenses…
The impact of interference excision on 21-cm Epoch of Reionization power spectrum analyses
A. R. Offringa, F. Mertens, L. V. E. Koopmans
We investigate the implications of interference detection for experiments that are pursuing a detection of the redshifted 21-cm signals from the Epoch of Reionization. Interference…