The Néel IRAM KID Arrays (NIKA2) is a continuum instrument proposed, designed, fabricated and deployed under the leadership of our group. It has been installed at the 30m IRAM telescope, at Pico Veleta (Spain) and open to the international community since 2017. See this paper for more details about the instrument. Currently, NIKA2 represents the reference for large and deep millimeter-wave (100-300 GHz) mapping at high-resolution (around 11″ at 250 GHz and 17.5″ at 150 GHz). Please have a look to the following papers for more information about NIKA2 and its state-of-the-art deep-mapping capabilities:
- Cosmological field at 2mm (150 GHz)
- Cosmological field at 1mm (250 GHz)
- Blind detection of lowest-mass highest-z galaxy clusters
- Cosmic Fireworks at z=5.2
Many other results have been obtained by NIKA2, both galactic and extragalactic, both total intensity and polarisation. Please have a look here for some of them.
Below: a high-z cluster of galaxies superimposed on a NIKA2 array. One among the tens of galaxy clusters studied by NIKA2 in the framework of the LPSZ Large Program.

Below: one of the tens of near-by galaxies imaged recently by NIKA2.

Below: when weather is bad for Cosmology sometimes we have fun.. and demonstrate the very high dynamic range of our KID. Credit: François-Xavier Désert.

