Young sub-Neptunes orbiting TOI-2076 light curves : J/A+A/664/A156

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Authors : Osborn H.P. orcid , Bonfanti A., Gandolfi D. (hide) , Bonfanti A., Gandolfi D. et..al

VizieR DOI : 10.26093/cds/vizier.36640156
Bibcode : 2022A&A...664A.156O (ADS) (Simbad) (Objects)
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CDS Keywords : Stars, double and multiple; Exoplanets; Photometry
UAT : Multiple stars, Exoplanets, Photometry

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Inserted into VizieR : 25-Aug-2022
Last modification : 20-Mar-2023

Uncovering the true periods of the young sub-Neptunes orbiting TOI-2076. (2022)

Keywords : planets and satellites detection - stars: individual: TOI-2076 - techniques: photometric

Abstract:TOI-2076 is a transiting three-planet system of sub-Neptunes orbiting a bright (G=8.9mag), young (340+/-80Myr) 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. 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. ...(more)
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Astronomy and Astrophysics policies
We present all space- and ground-based photometry observed of TOI-2076 which contributed the paper. This includes 4 visits with CHEOPS, and 6 ground-based lightcurves from LCO/McDonald (1m, z-band), Saint-Ex (1m, r-band), LCO/MuSCAT-3 (2m, g, r, i & z bands, each presented independently here).
Hugh Osborn, hugh.osborn(at)unibe.ch

                


                

                    

                


                

                    

                


                

                    
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