It’ll All B-A-O-kay – How the BAO Feature Guards Cosmological Information From Nonlinear Evolution
Today’s classic paper explains why the baryon acoustic oscillation feature faithfully ferries cosmological information to the late universe.
Today’s classic paper explains why the baryon acoustic oscillation feature faithfully ferries cosmological information to the late universe.
As the universe’s temperatures drop, there is a type of dark matter that can freeze-in. There is one consequence: it’s a bit of a drag.
Can the next generation of radio telescopes measure the cosmic sound from the early universe? Radio astronomers use simulations to find out.
In this series of papers, the authors apply new analysis techniques to data from several galaxy redshift surveys to uncover acoustic waves from the early universe and refine measurements of cosmological parameters.