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- Goddard Space Flight CenterUS884 papers
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4 papers · 2 filters
Ensuring Robustness in Training Set Based Global 21-cm Cosmology Analysis
Neil Bassett, David Rapetti, Keith Tauscher +2
We present a methodology for ensuring the robustness of our analysis pipeline in separating the global 21-cm hydrogen cosmology signal from large systematics based on singular valu…
Modelling the Galactic Foreground and Beam Chromaticity for Global 21-cm Cosmology
Joshua J. Hibbard, Keith Tauscher, David Rapetti +1
In order to characterize and model the beam-weighted foreground for global 21-cm signal experiments, we present a methodology for generating basis eigenvectors that combines analyt…
Cosmological Constraints from DES Y1 Cluster Abundances and SPT Multi-wavelength data
M. Costanzi, A. Saro, S. Bocquet +87
We perform a joint analysis of the counts of redMaPPer clusters selected from the Dark Energy Survey (DES) Y1 data and multi-wavelength follow-up data collected within the 2500 deg…
Formulating and critically examining the assumptions of global 21-cm signal analyses: How to avoid the false troughs that can appear in single spectrum fits
Keith Tauscher, David Rapetti, Jack O. Burns
The assumptions inherent to global 21-cm signal analyses are rarely delineated. In this paper, we formulate a general list of suppositions underlying a given claimed detection of t…