Astrophysics (Index)About


(Carbon CII Line in Post-Reionization and Reionization Epoch)
(spectrometer aimed at mapping the [CII] line)

CONCERTO (loosely for Carbon CII Line in Post-Reionization and Reionization Epoch) is a spectrometer for intensity mapping of the redshifted ionized carbon forbidden line [CII] in the epoch of reionization and as an indication of star formation. As of 3/2021, construction is complete and it is in the process of deployment on the Atacama Pathfinder Experiment (APEX). The spectral line is in the submillimeter range, and the instrument will disperse wavelengths with an a Martin-Puplett interferometer (type of adjustable Michelson interferometer) and sense with KIDs, achieving spectral resolutions as low as 1 GHz and angular resolutions down to 20 arcseconds.

A related effort is KISS (for KID Interferometer Spectrometer Surveyor) with an analogous instrument for a lower frequency range, aiming to map Sunyaev-Zel'dovich effects.

(instrument,star formation,spectrometer,construction)
Further reading: