TESS Investigation -- Demographics of Young Exoplanets (TI-DYE) III: an inner super-Earth in TOI-2076
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| Main Authors: | , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866913829359714304 |
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| author | Barber, Madyson G. Mann, Andrew W. Vanderburg, Andrew Boyle, Andrew W. Murillo, Ana Isabel Lopez |
| author_facet | Barber, Madyson G. Mann, Andrew W. Vanderburg, Andrew Boyle, Andrew W. Murillo, Ana Isabel Lopez |
| contents | Young (<500 Myr) multi-planet transiting systems are valuable environments for understanding planet evolution by offering an opportunity to make direct comparisons between planets from the same formation conditions. TOI-2076 is known to harbor three, 2.5-4 $R_\oplus$ planets on 10-35 day orbits. All three are JWST cycle 3 targets (for transmission spectroscopy). Here, we present the detection of TOI-2076 e; a smaller (1.35 $R_\oplus$), inner (3.02 day) 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 co-moving stars, finding that TOI-2076 and co-moving planetary system TOI-1807 are 210 $\pm$ 20 Myr. 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. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2505_06358 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | TESS Investigation -- Demographics of Young Exoplanets (TI-DYE) III: an inner super-Earth in TOI-2076 Barber, Madyson G. Mann, Andrew W. Vanderburg, Andrew Boyle, Andrew W. Murillo, Ana Isabel Lopez Earth and Planetary Astrophysics Young (<500 Myr) multi-planet transiting systems are valuable environments for understanding planet evolution by offering an opportunity to make direct comparisons between planets from the same formation conditions. TOI-2076 is known to harbor three, 2.5-4 $R_\oplus$ planets on 10-35 day orbits. All three are JWST cycle 3 targets (for transmission spectroscopy). Here, we present the detection of TOI-2076 e; a smaller (1.35 $R_\oplus$), inner (3.02 day) 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 co-moving stars, finding that TOI-2076 and co-moving planetary system TOI-1807 are 210 $\pm$ 20 Myr. 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. |
| title | TESS Investigation -- Demographics of Young Exoplanets (TI-DYE) III: an inner super-Earth in TOI-2076 |
| topic | Earth and Planetary Astrophysics |
| url | https://arxiv.org/abs/2505.06358 |