Uncovering the true periods of the young sub-Neptunes orbiting TOI-2076
- Osborn, H. P.
- Bonfanti, A.
- Gandolfi, D.
- Hedges, C.
- Leleu, A.
- Fortier, A.
- Futyan, D.
- Gutermann, P.
- Maxted, P. F. L.
- Borsato, L.
- Collins, K. A.
- Gomes da Silva, J.
- Gómez Maqueo Chew, Y.
- Hooton, M. J.
- Lendl, M.
- Parviainen, H.
- Salmon, S.
- Schanche, N.
- Serrano, L. M.
- Sousa, S. G.
- Tuson, A.
- Ulmer-Moll, S.
- van Grootel, V.
- Wells, R. D.
- Wilson, T. G.
- Alibert, Y.
- Alonso, R.
- Anglada, G.
- Asquier, J.
- Barrado y Navascues, D.
- Baumjohann, W.
- Beck, T.
- Benz, W.
- Biondi, F.
- Bonfils, X.
- Bouchy, F.
- Brandeker, A.
- Broeg, C.
- Bárczy, T.
- Barros, S. C. C.
- Cabrera, J.
- Charnoz, S.
- Collier Cameron, A.
- Csizmadia, S.
- Davies, M. B.
- Deleuil, M.
- Delrez, L.
- Demory, B. -O.
- Ehrenreich, D.
- Erikson, A.
- Fossati, L.
- Fridlund, M.
- Gillon, M.
- Gömez-Munoz, M. A.
- Güdel, M.
- Heng, K.
- Hoyer, S.
- Isaak, K. G.
- Kiss, L.
- Laskar, J.
- Lecavelier Des Etangs, A.
- Lovis, C.
- Magrin, D.
- Malavolta, L.
- Mccormac, J.
- Nascimbeni, V.
- Olofsson, G.
- Ottensamer, R.
- Pagano, I.
- Pallé, E.
- Peter, G.
- Piazza, D.
- Piotto, G.
- Pollacco, D.
- Queloz, D.
- Ragazzoni, R.
- Rando, N.
- Rauer, H.
- Reimers, C.
- Ribas, I.
- Demangeon, O. D. S.
- Smith, A. M. S.
- Sabin, L.
- Santos, N.
- Scandariato, G.
- Schroffenegger, U.
- Schwarz, R. P.
- Shporer, A.
- Simon, A. E.
- Steller, M.
- Szabó, G. M.
- Ségransan, D.
- Thomas, N.
- Udry, S.
- Walter, I.
- Walton, N.
DOIAbstract
International audienceContext. TOI-2076 is a transiting three-planet system of sub-Neptunes orbiting a bright (G = 8.9 mag), young (340 ± 80 Myr) K-type star. Although a validated planetary system, the orbits of the two outer planets were unconstrained as only two non-consecutive transits were seen in TESS photometry. This left 11 and 7 possible period aliases for each. Aims: To reveal the true orbits of these two long-period planets, precise photometry targeted on the highest-probability period aliases is required. Long-term monitoring of transits in multi-planet systems can also help constrain planetary masses through TTV measurements. Methods: We used the MonoTools package to determine which aliases to follow, and then performed space-...
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