Packed Ultra-wideband Mapping Array (PUMA): Astro2020 RFI Response

Kavli Affiliate: Kiyoshi W. Masui

| First 5 Authors: Emanuele Castorina, Simon Foreman, Dionysios Karagiannis, Adrian Liu, Kiyoshi W. Masui

| Summary:

The Packed Ultra-wideband Mapping Array (PUMA) is a proposed low-resolution
transit interferometric radio telescope operating over the frequency range 200
– 1100MHz. Its rich science portfolio will include measuring structure in the
universe from redshift z = 0.3 to 6 using 21cm intensity mapping, detecting one
million fast radio bursts, and monitoring thousands of pulsars. It will allow
PUMA to advance science in three different areas of physics (the physics of
dark energy, the physics of cosmic inflation and time-domain astrophysics).
This document is a response to a request for information (RFI) by the Panel on
Radio, Millimeter, and Submillimeter Observations from the Ground (RMS) of the
Decadal Survey on Astronomy and Astrophysics 2020. We present the science case
of PUMA, the development path and major risks to the project.

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