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Uncovering the true periods of the young sub-Neptunes orbiting TOI-2076
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dc.contributor.author | Osborn, H. P. | |
dc.contributor.author | Bonfanti, A. | |
dc.contributor.author | Gandolfi, D. | |
dc.contributor.author | Hedges, C. | |
dc.contributor.author | Leleu, A. | |
dc.contributor.author | Fortier, A. | |
dc.contributor.author | Futyan, D. | |
dc.contributor.author | Gutermann, P. | |
dc.contributor.author | Maxted, P. F.L. | |
dc.contributor.author | Borsato, L. | |
dc.contributor.author | Collins, K. A. | |
dc.contributor.author | Da Silva, J. Gomes | |
dc.contributor.author | Chew, Y. Gomez Maqueo | |
dc.contributor.author | Hooton, M. J. | |
dc.contributor.author | Lendl, M. | |
dc.contributor.author | Parviainen, H. | |
dc.contributor.author | Salmon, S. | |
dc.contributor.author | Schanche, N. | |
dc.contributor.author | Serrano, L. M. | |
dc.contributor.author | Sousa, S. G. | |
dc.contributor.author | Tuson, A. | |
dc.contributor.author | Ulmer-Moll, S. | |
dc.contributor.author | Van Grootel, V. | |
dc.contributor.author | Wells, R. D. | |
dc.contributor.author | Wilson, T. G. | |
dc.contributor.author | Alibert, Y. | |
dc.contributor.author | Alonso, R. | |
dc.contributor.author | Anglada, G. | |
dc.contributor.author | Asquier, J. | |
dc.contributor.author | Barrado Y Navascues, D. | |
dc.contributor.author | Baumjohann, W. | |
dc.contributor.author | Beck, T. | |
dc.contributor.author | Benz, W. | |
dc.contributor.author | Biondi, F. | |
dc.contributor.author | Bonfils, X. | |
dc.contributor.author | Bouchy, F. | |
dc.contributor.author | Brandeker, A. | |
dc.contributor.author | Broeg, C. | |
dc.contributor.author | Barczy, T. | |
dc.contributor.author | Barros, S. C.C. | |
dc.contributor.author | Cabrera, J. | |
dc.contributor.author | Charnoz, S. | |
dc.contributor.author | Cameron, A. Collier | |
dc.contributor.author | Csizmadia, S. | |
dc.contributor.author | Davies, M. B. | |
dc.contributor.author | Deleuil, M. | |
dc.contributor.author | Delrez, L. | |
dc.contributor.author | Demory, B. O. | |
dc.contributor.author | Ehrenreich, D. | |
dc.contributor.author | Erikson, A. | |
dc.contributor.author | Fossati, L. | |
dc.contributor.author | Fridlund, M. | |
dc.contributor.author | Gillon, M. | |
dc.contributor.author | Gomez-Munoz, M. A. | |
dc.contributor.author | Gudel, M. | |
dc.contributor.author | Heng, K. | |
dc.contributor.author | Hoyer, S. | |
dc.contributor.author | Isaak, K. G. | |
dc.contributor.author | Kiss, L. | |
dc.contributor.author | Laskar, J. | |
dc.contributor.author | Des Etangs, A. Lecavelier | |
dc.contributor.author | Lovis, C. | |
dc.contributor.author | Magrin, D. | |
dc.contributor.author | Malavolta, L. | |
dc.contributor.author | McCormac, J. | |
dc.contributor.author | Nascimbeni, V. | |
dc.contributor.author | Olofsson, G. | |
dc.contributor.author | Ottensamer, R. | |
dc.contributor.author | Pagano, I. | |
dc.contributor.author | Palle, E. | |
dc.contributor.author | Peter, G. | |
dc.contributor.author | Piazza, D. | |
dc.contributor.author | Piotto, G. | |
dc.contributor.author | Pollacco, D. | |
dc.contributor.author | Queloz, D. | |
dc.contributor.author | Ragazzoni, R. | |
dc.contributor.author | Rando, N. | |
dc.contributor.author | Rauer, H. | |
dc.contributor.author | Reimers, C. | |
dc.contributor.author | Ribas, I. | |
dc.contributor.author | Demangeon, O. D.S. | |
dc.contributor.author | Smith, A. M.S. | |
dc.contributor.author | Sabin, L. | |
dc.contributor.author | Santos, N. | |
dc.contributor.author | Scandariato, G. | |
dc.contributor.author | Schroffenegger, U. | |
dc.contributor.author | Schwarz, R. P. | |
dc.contributor.author | Shporer, A. | |
dc.contributor.author | Simon, A. E. | |
dc.contributor.author | Steller, M. | |
dc.contributor.author | Szabo, G. M. | |
dc.contributor.author | Segransan, D. | |
dc.contributor.author | Thomas, N. | |
dc.contributor.author | Udry, S. | |
dc.contributor.author | Walter, I. | |
dc.contributor.author | Walton, N. | |
dc.date.accessioned | 2022-11-30T13:30:04Z | |
dc.date.available | 2022-11-30T13:30:04Z | |
dc.date.issued | 2022-08-25 | |
dc.identifier.citation | 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 , Da Silva , J G , Chew , Y G M , 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 , Barczy , T , Barros , S C C , Cabrera , J , Charnoz , S , Cameron , A C , Csizmadia , S , Davies , M B , Deleuil , M , Delrez , L , Demory , B O , Ehrenreich , D , Erikson , A , Fossati , L , Fridlund , M , Gillon , M , Gomez-Munoz , M A , Gudel , M , Heng , K , Hoyer , S , Isaak , K G , Kiss , L , Laskar , J , Des Etangs , A L , Lovis , C , Magrin , D , Malavolta , L , McCormac , J , Nascimbeni , V , Olofsson , G , Ottensamer , R , Pagano , I , Palle , 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 , Szabo , G M , Segransan , D , Thomas , N , Udry , S , Walter , I & Walton , N 2022 , ' Uncovering the true periods of the young sub-Neptunes orbiting TOI-2076 ' , Astronomy and Astrophysics , vol. 664 , A156 . https://doi.org/10.1051/0004-6361/202243065 | en |
dc.identifier.issn | 0004-6361 | |
dc.identifier.other | PURE: 282287245 | |
dc.identifier.other | PURE UUID: aca2ec66-9a84-4555-9e08-50ec8f2f26f6 | |
dc.identifier.other | RIS: urn:171317E25E4A670D96507EE36521BDC9 | |
dc.identifier.other | Scopus: 85141293670 | |
dc.identifier.other | ORCID: /0000-0002-8863-7828/work/123614143 | |
dc.identifier.other | ORCID: /0000-0001-8749-1962/work/123614256 | |
dc.identifier.other | WOS: 000844280100005 | |
dc.identifier.uri | https://hdl.handle.net/10023/26519 | |
dc.description | Funding: ACC and TGW acknowledge support from STFC consolidated grant numbers ST/R000824/1 and ST/V000861/1, and UKSA grant ST/R003203/1. | en |
dc.description.abstract | Context. 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-based and ground-based photometric follow-up of TOI-2076 c and d with CHEOPS, SAINT-EX, and LCO telescopes. Results. CHEOPS observations revealed a clear detection for TOI-2076 c at P = 21.01538+0.00084 -0.00074 d, and allowed us to rule out three of the most likely period aliases for TOI-2076 d. Ground-based photometry further enabled us to rule out remaining aliases and confirm the P = 35.12537 ±0.00067 d alias. These observations also improved the radius precision of all three sub-Neptunes to 2.518 ±0.036, 3.497 ±0.043, and 3.232 ±0.063 R⊕. Our observations also revealed a clear anti-correlated TTV signal between planets b and c likely caused by their proximity to the 2:1 resonance, while planets c and d appear close to a 5:3 period commensurability, although model degeneracy meant we were unable to retrieve robust TTV masses. Their inflated radii, likely due to extended H-He atmospheres, combined with low insolation makes all three planets excellent candidates for future comparative transmission spectroscopy with JWST. | |
dc.format.extent | 17 | |
dc.language.iso | eng | |
dc.relation.ispartof | Astronomy and Astrophysics | en |
dc.rights | Copyright © ESO 2022. This work has been made available online in accordance with publisher policies or with permission. Permission for further reuse of this content should be sought from the publisher or the rights holder. This is the final published version of the work, which was originally published at https://doi.org/10.1051/0004-6361/202243065. | en |
dc.subject | Planets and satellites: detection | en |
dc.subject | Stars: individual: TOI-2076 | en |
dc.subject | Techniques: photometric | en |
dc.subject | QB Astronomy | en |
dc.subject | QC Physics | en |
dc.subject | Space and Planetary Science | en |
dc.subject | Astronomy and Astrophysics | en |
dc.subject | 3rd-DAS | en |
dc.subject | MCC | en |
dc.subject.lcc | QB | en |
dc.subject.lcc | QC | en |
dc.title | Uncovering the true periods of the young sub-Neptunes orbiting TOI-2076 | en |
dc.type | Journal article | en |
dc.contributor.sponsor | Science & Technology Facilities Council | en |
dc.contributor.sponsor | Science & Technology Facilities Council | en |
dc.description.version | Publisher PDF | en |
dc.contributor.institution | University of St Andrews. School of Physics and Astronomy | en |
dc.contributor.institution | University of St Andrews. St Andrews Centre for Exoplanet Science | en |
dc.identifier.doi | https://doi.org/10.1051/0004-6361/202243065 | |
dc.description.status | Peer reviewed | en |
dc.identifier.url | https://arxiv.org/abs/2203.03194 | en |
dc.identifier.grantnumber | ST/R00824/1 | en |
dc.identifier.grantnumber | ST/R003203/1 | en |
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