A hot sub-Neptune in the desert and a temperate super-Earth around faint M dwarfs
- E. Esparza-Borges
- H. Parviainen
- F. Murgas
- E. Pallé
- A. Maas
- G. Morello
- M. R. Zapatero-Osorio
- K. Barkaoui
- N. Narita
- A. Fukui
- N. Casasayas-Barris
- M. Oshagh
- N. Crouzet
- D. Galán
- G. E. Fernández
- T. Kagetani
- K. Kawauchi
- T. Kodama
- J. Korth
- N. Kusakabe
- A. Laza-Ramos
- R. Luque
- J. Livingston
- A. Madrigal-Aguado
- M. Mori
- J. Orell-Miquel
- M. Puig-Subirà
- M. Stangret
- Y. Terada
- N. Watanabe
- Y. Zou
- A. Baliga Savel
- A. A. Belinski
- K. Collins
- C. D. Dressing
- S. Giacalone
- H. Gill
- M. V. Goliguzova
- M. Ikoma
- J. M. Jenkins
- M. Tamura
- J. D. Twicken
- G. R. Ricker
- R. P. Schwarz
- S. Seager
- A. Shporer
- R. Vanderspek
- J. Winn
DOIAbstract
Aims. We report the discovery and validation of two TESS exoplanets orbiting faint M dwarfs: TOI-4479b and TOI-2081b. Methods. We jointly analyzed space (TESS mission) and ground-based (MuSCAT2, MuSCAT3 and SINISTRO instruments) light curves using our multicolor photometry transit analysis pipeline. This allowed us to compute contamination limits for both candidates and validate them as planet-sized companions. Results. We found TOI-4479b to be a sub-Neptune-sized planet (Rp = 2.82−0.63+0.65 R⊕) and TOI-2081b to be a super-Earth-sized planet (Rp = 2.04−0.54+0.50 R⊕). Furthermore, we obtained that TOI-4479b, with a short orbital period of 1.15890−0.00001+0.00002 days, lies within the Neptune desert and is in fact the largest nearly ultra-sho...
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