Observations with KIDs Interferometer Spectrum Survey(KISS)

TL;DR

KISS is a novel spectral imager using kinetic inductance detectors, capable of rapid spectral mapping over a large field of view, demonstrating promising preliminary on-sky results in the 120-180 GHz range.

Contribution

This paper introduces KISS, a new large FoV spectral imager with kinetic inductance detectors, showcasing its potential for spectral mapping in astronomy.

Findings

Over 3,000 spectra per second achieved during observations

Preliminary on-sky results demonstrate effective spectral mapping

Instrument operates successfully in 120-180 GHz range

Abstract

We describe the preliminary on-sky results of the KIDs Interferometer Spectrum Survey (KISS), a spectral imager with a 1 deg field of view (FoV). The instrument operates in the range 120-180 GHz from the 2.25 m Q-U-I JOint TEnerife telescope in Teide Observatory (Tenerife, Canary Islands), at 2 395 m altitude above sea level. Spectra at low resolution, up to 1.45 GHz, are obtained using a fast (3.72 Hz mechanical frequency) Fourier transform spectrometer, coupled to a continuous dilution cryostat with a stabilized temperature of 170 mK that hosts two 316-pixel arrays of lumped-element kinetic inductance detectors. KISS generates more than 3 000 spectra per second during observations and represents a pathfinder to demonstrate the potential for spectral mapping with large FoV. We give an overall description of the spectral mapping paradigm and we present recent results from observations, in this paper.