Beyond UVJ: Color Selection of Galaxies in the JWST Era
Jacqueline Antwi-Danso, Casey Papovich, Joel Leja, Danilo Marchesini,, Z. Cemile Marsan, Nicholas S. Martis, Ivo Labb\'e, Adam Muzzin, Karl, Glazebrook, Caroline M.S. Straatman, Kim-Vy H. Tran

TL;DR
The paper introduces a new rest-frame color-color selection method, $(ugi)_s$, that improves the identification of quiescent galaxies at high redshift in the JWST era by reducing contamination compared to the traditional $UVJ$ diagram.
Contribution
A novel $(ugi)_s$ color selection method that outperforms $UVJ$ in purity and reduces contamination in high-redshift galaxy classification.
Findings
$(ugi)_s$ reduces contamination in quiescent galaxy samples by nearly a factor of two.
$(ugi)_s$ maintains high completeness (~85-90%) at $z=3-3.5$.
$(ugi)_s$ achieves a true-to-false-positive ratio greater than 2.2 at $z brace 3.5-6$.
Abstract
We present a new rest-frame color-color selection method using "synthetic and '', colors to identify star-forming and quiescent galaxies. Our method is similar to the widely-used versus () diagram. However, suffers known systematics. Spectroscopic campaigns have shown that -selected quiescent samples at include contamination from galaxies with dust-obscured star formation and strong emission lines. Moreover, at , colors are extrapolated because the rest-frame J-band shifts beyond the coverage of the deepest bandpasses at (typically /IRAC 4.5 or future /NIRCam observations). We demonstrate that offers improvements to at , and can be applied to galaxies in the era. We apply selection to galaxies at from the…
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Taxonomy
TopicsAstronomy and Astrophysical Research · Astrophysical Phenomena and Observations · Adaptive optics and wavefront sensing
