Kavli Affiliate: James J. Bock
| First 5 Authors: , , , ,
| Summary:
The background light produced by emission from all sources over cosmic
history is a powerful diagnostic of structure formation and evolution. At
near-infrared wavelengths, this extragalactic background light (EBL) is
comprised of emission from galaxies stretching all the way back to the
first-light objects present during the Epoch of Reionization. The Cosmic
Infrared Background Experiment 2 (CIBER-2) is a sounding-rocket experiment
designed to measure both the absolute photometric brightness of the EBL over
0.5 – 2.0 microns and perform an intensity mapping measurement of EBL spatial
fluctuations in six broad bands over the same wavelength range. CIBER-2
comprises a 28.5 cm, 80K telescope that images several square degrees to three
separate cameras. Each camera is equipped with an HAWAII-2RG detector covered
by an assembly that combines two broadband filters and a linear-variable
filter, which perform the intensity mapping and absolute photometric
measurements, respectively. CIBER-2 has flown three times: an engineering
flight in 2021; a terminated launch in 2023; and a successful science flight in
2024. In this paper, we review the science case for the experiment; describe
the factors motivating the instrument design; review the optical, mechanical,
and electronic implementation of the instrument; present preflight laboratory
characterization measurements; and finally assess the instrument’s performance
in flight.
| Search Query: ArXiv Query: search_query=au:”James J. Bock”&id_list=&start=0&max_results=3