Fitting and Comparing Galactic Foreground Models for Unbiased 21 cm Cosmology

Accurate detection of the cosmological 21 cm global signal requires galactic foreground models that can remove power over 10 ^6 . Although foreground and global signal models unavoidably exhibit overlap in their vector spaces inducing bias error in the extracted signal, a second source of bias and e...

Full description

Bibliographic Details
Main Authors: Joshua J. Hibbard, David Rapetti, Jack O. Burns, Nivedita Mahesh, Neil Bassett
Format: Article
Language:English
Published: IOP Publishing 2023-01-01
Series:The Astrophysical Journal
Subjects:
Online Access:https://doi.org/10.3847/1538-4357/ad06b3