Robust forecasts on fundamental physics from the foreground-obscured, gravitationally-lensed CMB polarization

摘要: [Abridged] Recent results from the BICEP, Keck Array and Planck Collaborations demonstrate that Galactic foregrounds are an unavoidable obstacle in search for evidence of inflationary gravitational waves cosmic microwave background (CMB) polarization. Beyond foregrounds, effect lensing by intervening large-scale structure further obscures all but strongest signals permitted current data. With a plethora ongoing upcoming experiments aiming to measure these signatures, careful self-consistent consideration experiments' foreground- lensing-removal capabilities is critical obtaining credible forecasts their performance. We investigate instruments such as Advanced ACTPol, BICEP3 Array, CLASS, EBEX10K, PIPER, Simons SPT-3G SPIDER, projects COrE+, LiteBIRD-ext, PIXIE Stage IV, clean contamination due polarized synchrotron dust raw multi-frequency data, remove resulting co-added CMB maps (either using iterative CMB-only techniques or through cross-correlation with external data). Incorporating effects, we present constraining power terms physics, neutrino sector, dark energy parameters. Made publicly available online interface, this tool enables next generation foreground-proof designs, optimize frequency coverage maximize scientific output, determine where cross-experimental collaboration would be most beneficial. find analyzing data ground, balloon space complementary combinations can significantly improve component separation performance, delensing, cosmological constraints over individual datasets.