TI-DYE. III. TOI-2076 light curves & comoving stars

TOI 2076 is known to harbor three 2.5-4R_{Earth}_ planets on 10-35days orbits. All three are JWST cycle 3 targets (for transmission spectroscopy).

Here, we present the detection of TOI 2076 e; a smaller (1.35R_{Earth}_) inner (3.02days) planet in the system. We update the age of the system by analyzing the rotation periods, lithium equivalent widths, color-magnitude diagram, and variability of likely comoving stars, finding that TOI 2076 and comoving planetary system TOI 1807 are 210+/-20Myr. The discovery of TOI 2076 e is motivation to revisit known transiting systems in search of additional planets that are now detectable with new TESS data and updated search methods.