skip to primary navigationskip to content
 

REACH

REACH Logo
The Radio Experiment for the Analysis of Cosmic Hydrogen (REACH) is a global 21-cm experiment dedicated to the study of the early epochs of the Universe (Cosmic Dawn and the Epoch of Re-ionization). REACH is a radiometer targeting the detection of the redshifted 21-cm Hydrogen line from the time when the first luminous objects in the Universe were formed. 
First stars
 

REACH is a joint experiment between the University of Cambridge and Stellenbosch University in South Africa. With primary funding from the KICC, REACH will be deployed in the semi-deserted land of the Karoo radio reserve in South Africa, a unique RFI (Radio Frequency Interference) quiet site also home of the future Square Kilometer Array telescope.

21cm Cosmology
The instrument will operate between 50 and 200 MHz in order to explore both the Cosmic Dawn and the Epoch of Re-ionization. REACH is a wideband radiometer using state of the art ultra smooth wideband radio antenna designs aiming at reducing the contamination of the cosmic signal. REACH is furthermore making use of advanced Bayesian data analysis tools as well as physics rooted models of the instrument, the 21-cm signal and the foreground signals under which the cosmic signal is buried. Precisely these foregrounds (~100,000 times brighter than the cosmic signal) are the main reason why this detection has not been made yet.
REACH system

KICC Annual Report 2019

Read more

RSS Feed Latest news

Galaxies in the Infant Universe Were Surprisingly Mature

Oct 27, 2020

Massive galaxies were already much more mature in the early universe than previously expected. This was shown by an international team of astronomers—including researchers from the Kavli Institute for Cosmology (KICC) and the Kavli Institute for the Physics and Mathematics of the Universe (Kavli IPMU) — who studied 118 distant galaxies with the Atacama Large Millimeter/submillimeter Array (ALMA).

The Nobel Prize in Physics 2020

Oct 06, 2020

The Nobel Prize in Physics 2020 has been awarded to Roger Penrose, Reinhard Genzel, and Andrea Ghez, for their discoveries about one of the most exotic phenomena in the universe: the black hole.

View all news