Beyond UVJ: Color Selection of Galaxies in the JWST Era

Understand

We present a new rest-frame color-color selection method using "synthetic $u_s-g_s$ and $g_s-i_s$'', $(ugi)_s$ colors to identify star-forming and quiescent galaxies.

• Our method is similar to the widely-used $U-V$ versus $V-J$ ($UVJ$) diagram.
• However, $UVJ$ suffers known systematics.
• Spectroscopic campaigns have shown that $UVJ$-selected quiescent samples at $z \gtrsim 3$ include $\sim 10-30\%$ contamination from galaxies with dust-obscured star formation and strong emission lines.