meer21cm is a publicly available Python toolkit for post-calibration analysis of single-dish HI intensity mapping surveys, achieving percent-level accuracy on simulated MeerKAT data in the k range 0.02-0.2 h/Mpc.
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Simulations of REACH observations demonstrate that complex foreground models are needed to recover the 21cm signal but limit accurate free-free mapping while synchrotron is recovered well.
The authors produce a new all-sky Galactic emission model with synchrotron amplitude at 4.76 GHz roughly twice the Planck 2015 value, derived via Commander fitting to recent radio and microwave surveys.
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Synchrotron and free-free mapping with simulated REACH observations between 50-170 MHz
Simulations of REACH observations demonstrate that complex foreground models are needed to recover the 21cm signal but limit accurate free-free mapping while synchrotron is recovered well.
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All-sky modeling of Galactic emission at radio and microwave frequencies
The authors produce a new all-sky Galactic emission model with synchrotron amplitude at 4.76 GHz roughly twice the Planck 2015 value, derived via Commander fitting to recent radio and microwave surveys.