Research report 2007 - Max Planck Institute for Astrophysics
Cosmological hydrogen recombination lines from redshifts z~1400
Sunyaev, Rashid; Chluba, Jens
Hochenergie-Astrophysik (Prof. Dr. Rashid Sunyaev)
MPI für Astrophysik, Garching
SummaryScientists at Max Planck Institute for Astrophysics (MPA) have performed detailed computations of the highly redshifted radiation that is released during the epoch of cosmological hydrogen recombination. Progress in the development of radio detectors may render these small deviations of the Cosmic Microwave Background (CMB) spectrum from a perfect blackbody observable, thereby offering a complementary way to measure the exact value of the CMB temperature, the entropy of the Universe, and to provide direct evidence about how our Universe became transparent.