TESS Discovery of Two Super-Earths Orbiting the M-dwarf Stars TOI-6002 and TOI-5713 Near The Radius Valley
We present the validation of two TESS super-Earth candidates transiting the mid-M dwarfs TOI-6002 and TOI-5713 every 10.90 and 10.44 days, respectively.
The first star (TOI-6002) is located 32.038 ± 0.019 pc away, with a radius of 0.2409+0.0066 −0.0065 R⊙, a mass of 0.2105+0.0049 −0.0048 M⊙, and an effective temperature of 3229+77 −57 K.
The second star (TOI-5713) is located 40.946 ± 0.032 pc away, with a radius of 0.2985+0.0073 −0.0072 R⊙, a mass of 0.2653 ± 0.0061 M⊙, and an effective temperature of 3225+41 −40 K.
We validated the planets using TESS data, ground-based multi-wavelength photometry from many ground-based facilities, as well as high-resolution AO observations from Keck/NIRC2.
TOI-6002 b has a radius of 1.65+0.22 −0.19 R⊕ and receives 1.77+0.16 −0.11S ⊕. TOI-5713 b has a radius of 1.77+0.13 −0.11 R⊕ and receives 2.42 ± 0.11S ⊕.
Both planets are located near the radius valley and near the inner edge of the habitable zone of their host stars, which makes them intriguing targets for future studies to understand the formation and evolution of small planets around M-dwarf stars
IMAGE
Phase-folded detrended ground-based transit light curves with time in hours from mid-transit of TOI-6002 b (left) and TOI-5713 b (right). The unbinned light curves are shown with gray points. The binned points (bin size=6 min) are shown in black with the corresponding error bars. The solid-colored lines corresponds to the best-fit transit model from the final joint fit. — astro-ph.EP
SpeX SXD spectra of TOI-5713 (top) and TOI-6002 (bottom). Spectra of the targets (blue) and the M3.5V spectral standard GJ 273 (grey) are shown. Annotations indicate strong spectral features of M dwarfs, and shaded regions cover wavelengths with strong telluric absorption. — astro-ph.EP
M. Ghachoui, B.V. Rackham, M. Dévora-Pajares, J. Chouqar, M. Timmermans, L. Kaltenegger, D. Sebastian, F.J. Pozuelos, J.D. Eastman, A.J. Burgasser, F. Murgas, K.G. Stassun, M. Gillon, Z. Benkhaldoun, E. Palle, L. Delrez, J.M. Jenkins, K. Barkaoui, N. Narita, J. P. de Leon, M. Mori, A. Shporer, P. Rowden, V. Kostov, G. Fűrész, K.A. Collins, R.P. Schwarz, D. Charbonneau, N.M. Guerrero, G. Ricker, E. Jehin, A. Fukui, Y. Kawai, Y. Hayashi, E. Esparza-Borges, H. Parviainen, C.A. Clark, D.R. Ciardi, A.S. Polanski, J. Schleider, E.A. Gilbert, I. J.M. Crossfield, T. Barclay, C.D. Dressing, P.R. Karpoor, E. Softich, R. Gerasimov, F. Davoudi
Subjects: Earth and Planetary Astrophysics (astro-ph.EP)
Cite as: arXiv:2408.00709 [astro-ph.EP] (or arXiv:2408.00709v4 [astro-ph.EP] for this version)
https://doi.org/10.48550/arXiv.2408.00709
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Submission history
From: Mourad Ghachoui
[v1] Thu, 1 Aug 2024 16:56:26 UTC (9,148 KB)
[v2] Fri, 16 Aug 2024 17:52:45 UTC (8,884 KB)
[v3] Thu, 22 Aug 2024 15:54:21 UTC (8,883 KB)
[v4] Sun, 15 Sep 2024 15:59:56 UTC (8,883 KB)
https://arxiv.org/abs/2408.00709
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