2024/07/24 by Guido Roberts-Borsani, Roberts-Borsani, Guido, Micaela B. Bagley +39 · 4 citations
Physics and Astronomy · Engineering · #Astronomy and Astrophysical Research #Astronomical Observations and Instrumentation #Gamma-ray bursts and supernovae
paper · pdf · doi:10.48550/arxiv.2407.17551
We present the BoRG-JWST survey, a combination of two JWST Cycle 1 programs aimed at obtaining NIRSpec spectroscopy of representative, UV-bright 75, highlighting the large abundance of high-redshift galaxies even in individual WFC3 pointings. The primary sample span an absolute magnitude range -20.47 sources currently known and comparable to the brightest sources at z>10. Prominent [O III]+Hβ lines are found across the full sample, while a stack of sources reveals a plethora of other rest-optical lines and additional rest-UV C III]1909 Å emission. Despite their luminosities, none of the low-resolution spectra display evidence for Type 1 AGN activity based on a search for broad-line emission. Lastly, we present a spectroscopic data release of 188 confirmed 0.5\lesssim z\lesssim5.0 sources from filler MSA observations, highlighting the legacy value of the survey and a representative benchmark for comparisons to deep field observations.