Signal of cosmic strings in cross-correlation of 21-cm redshift and CMB polarization maps
نویسندگان
چکیده
Abstract We study the signal of cosmic string wakes present before time reionization in cross-correlation 21-cm redshift and B-mode CMB polarization maps. The specific non-Gaussian strings position space maps can be extracted by means a matched filtering analysis. Signals with tension somewhat lower than those corresponding to current upper bound identified when embedded background Gaussian fluctuations from Planck best-fit LCDM model.
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ژورنال
عنوان ژورنال: Journal of Cosmology and Astroparticle Physics
سال: 2022
ISSN: ['1475-7516', '1475-7508']
DOI: https://doi.org/10.1088/1475-7516/2022/11/012