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TOI-1743 b, TOI-5799 b, TOI-5799 c and TOI-6223 b: TESS discovery and validation of four super-Earth to Neptune-sized planets around M dwarfs

Fuente: arXiv

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Auteurs principaux:	Yalçınkaya, S., Barkaoui, K., Baştürk, Ö., Gillon, M., Pozuelos, F. J., Timmermans, M., Rackham, B. V., Burgasser, A. J., Mistry, P., Peláez-Torres, A., Morello, G., Pass, E. K., Bieryla, A., Latham, D. W., Collins, K. A., Akar, F., Benkhaldoun, Z., Burdanov, A., Brande, J., Ciardi, D. R., Clark, C. A., Ducrot, E., de Wit, J., Demory, B. O., Esmer, E. M., Everett, M. E., Fernández-Rodriguez, G., Fukui, A., Ghachoui, M., Gilbert, E. A., Girardin, E., Chew, Y. Gómez Maqueo, Ikuta, K., Isogai, K., Hooton, M. J., Jafariyazani, M., Jehin, E., Jenkins, J. M., Karpoor, P. R., Kawai, Y., Kawauchi, K., Khandelwal, A., Kutluay, A. C., Lacedelli, G., Lendl, M., Lund, M. B., Murgas, F., Narita, N., Palle, E., Pedersen, P. P., Plauchu-Frayn, I., Polanski, A. S., Queloz, D., Schroffenegger, U., Schwarz, R. P., Shporer, A., Softich, E., Sohy, S., Soubkiou, A., Srdoc, G., Strakhov, I. A., Triaud, A. H. M. J., Ziegler, C., Lang, F. Zong, Zúñiga-Fernández, S.
Format:	Preprint
Publié:	2025
Sujets:	Earth and Planetary Astrophysics
Accès en ligne:	Acceder al recurso
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_version_	1866915567337734144
author	Yalçınkaya, S. Barkaoui, K. Baştürk, Ö. Gillon, M. Pozuelos, F. J. Timmermans, M. Rackham, B. V. Burgasser, A. J. Mistry, P. Peláez-Torres, A. Morello, G. Pass, E. K. Bieryla, A. Latham, D. W. Collins, K. A. Akar, F. Benkhaldoun, Z. Burdanov, A. Brande, J. Ciardi, D. R. Clark, C. A. Ducrot, E. de Wit, J. Demory, B. O. Esmer, E. M. Everett, M. E. Fernández-Rodriguez, G. Fukui, A. Ghachoui, M. Gilbert, E. A. Girardin, E. Chew, Y. Gómez Maqueo Ikuta, K. Isogai, K. Hooton, M. J. Jafariyazani, M. Jehin, E. Jenkins, J. M. Karpoor, P. R. Kawai, Y. Kawauchi, K. Khandelwal, A. Kutluay, A. C. Lacedelli, G. Lendl, M. Lund, M. B. Murgas, F. Narita, N. Palle, E. Pedersen, P. P. Plauchu-Frayn, I. Polanski, A. S. Queloz, D. Schroffenegger, U. Schwarz, R. P. Shporer, A. Softich, E. Sohy, S. Soubkiou, A. Srdoc, G. Strakhov, I. A. Triaud, A. H. M. J. Ziegler, C. Lang, F. Zong Zúñiga-Fernández, S.
author_facet	Yalçınkaya, S. Barkaoui, K. Baştürk, Ö. Gillon, M. Pozuelos, F. J. Timmermans, M. Rackham, B. V. Burgasser, A. J. Mistry, P. Peláez-Torres, A. Morello, G. Pass, E. K. Bieryla, A. Latham, D. W. Collins, K. A. Akar, F. Benkhaldoun, Z. Burdanov, A. Brande, J. Ciardi, D. R. Clark, C. A. Ducrot, E. de Wit, J. Demory, B. O. Esmer, E. M. Everett, M. E. Fernández-Rodriguez, G. Fukui, A. Ghachoui, M. Gilbert, E. A. Girardin, E. Chew, Y. Gómez Maqueo Ikuta, K. Isogai, K. Hooton, M. J. Jafariyazani, M. Jehin, E. Jenkins, J. M. Karpoor, P. R. Kawai, Y. Kawauchi, K. Khandelwal, A. Kutluay, A. C. Lacedelli, G. Lendl, M. Lund, M. B. Murgas, F. Narita, N. Palle, E. Pedersen, P. P. Plauchu-Frayn, I. Polanski, A. S. Queloz, D. Schroffenegger, U. Schwarz, R. P. Shporer, A. Softich, E. Sohy, S. Soubkiou, A. Srdoc, G. Strakhov, I. A. Triaud, A. H. M. J. Ziegler, C. Lang, F. Zong Zúñiga-Fernández, S.
contents	We present the discovery by the TESS mission of one transiting Neptune-sized planet, TOI-6223 b and two transiting super-Earths, TOI-1743 b and TOI-5799 b. We validate these planets using a statistical validation method, multi-color light curves and other ancillary observations. We combined TESS and ground-based photometric data to constrain the physical properties of the planets. TOI-6223-b is slightly larger than Neptune ($R_p=5.12^{+0.24}_{-0.25}$ $R_\oplus$) orbiting an early M dwarf in 3.86 days, and it has an equilibrium temperature of $T_{\rm eq}=714\pm14$ K. TOI-1743 b orbits its M4V star every 4.27 days. It has a radius of $R_p=1.83^{+0.11}_{-0.10}$ $R_\oplus$ and an equilibrium temperature of $T_{\rm eq}=485^{+14}_{-13}$ K. TOI-5799 b has a radius of $R_p=1.733^{+0.096}_{-0.090}$ $R_\oplus$, and an equilibrium temperature of $T_{\rm eq}=505\pm16$ K orbits an M2 dwarf in 4.17 days. We also present the discovery of an additional transiting planet, TOI-5799 c, that we identified in the TESS data and validated using the SHERLOCK pipeline. TOI-5799 c is a super-Earth with a radius of $R_p=1.76^{+0.11}_{-0.10}$ $R_\oplus$. Its orbital period and its equilibrium temperature are 14.01 days and $T_{\rm eq}=337\pm11$ K, which place it near the inner edge of the habitable zone of its star.We show that these planets are suitable for both radial velocity follow-up and atmospheric characterization. They orbit bright (< 11 $K_{mag}$) early M dwarfs, making them accessible for precise mass measurements. The combination of the planet sizes and stellar brightness of their host stars also make them suitable targets for atmospheric exploration with the JWST. Such studies may provide insights into planet formation and evolution, as TOI-1743-b, TOI-5799-b, and TOI-5799-c lie within the so-called radius valley, while TOI-6223-b is located on the Neptunian ridge in the period-radius plane.
format	Preprint
id	arxiv_https___arxiv_org_abs_2509_05038
institution	arXiv
publishDate	2025
record_format	arxiv
spellingShingle	TOI-1743 b, TOI-5799 b, TOI-5799 c and TOI-6223 b: TESS discovery and validation of four super-Earth to Neptune-sized planets around M dwarfs Yalçınkaya, S. Barkaoui, K. Baştürk, Ö. Gillon, M. Pozuelos, F. J. Timmermans, M. Rackham, B. V. Burgasser, A. J. Mistry, P. Peláez-Torres, A. Morello, G. Pass, E. K. Bieryla, A. Latham, D. W. Collins, K. A. Akar, F. Benkhaldoun, Z. Burdanov, A. Brande, J. Ciardi, D. R. Clark, C. A. Ducrot, E. de Wit, J. Demory, B. O. Esmer, E. M. Everett, M. E. Fernández-Rodriguez, G. Fukui, A. Ghachoui, M. Gilbert, E. A. Girardin, E. Chew, Y. Gómez Maqueo Ikuta, K. Isogai, K. Hooton, M. J. Jafariyazani, M. Jehin, E. Jenkins, J. M. Karpoor, P. R. Kawai, Y. Kawauchi, K. Khandelwal, A. Kutluay, A. C. Lacedelli, G. Lendl, M. Lund, M. B. Murgas, F. Narita, N. Palle, E. Pedersen, P. P. Plauchu-Frayn, I. Polanski, A. S. Queloz, D. Schroffenegger, U. Schwarz, R. P. Shporer, A. Softich, E. Sohy, S. Soubkiou, A. Srdoc, G. Strakhov, I. A. Triaud, A. H. M. J. Ziegler, C. Lang, F. Zong Zúñiga-Fernández, S. Earth and Planetary Astrophysics We present the discovery by the TESS mission of one transiting Neptune-sized planet, TOI-6223 b and two transiting super-Earths, TOI-1743 b and TOI-5799 b. We validate these planets using a statistical validation method, multi-color light curves and other ancillary observations. We combined TESS and ground-based photometric data to constrain the physical properties of the planets. TOI-6223-b is slightly larger than Neptune ($R_p=5.12^{+0.24}_{-0.25}$ $R_\oplus$) orbiting an early M dwarf in 3.86 days, and it has an equilibrium temperature of $T_{\rm eq}=714\pm14$ K. TOI-1743 b orbits its M4V star every 4.27 days. It has a radius of $R_p=1.83^{+0.11}_{-0.10}$ $R_\oplus$ and an equilibrium temperature of $T_{\rm eq}=485^{+14}_{-13}$ K. TOI-5799 b has a radius of $R_p=1.733^{+0.096}_{-0.090}$ $R_\oplus$, and an equilibrium temperature of $T_{\rm eq}=505\pm16$ K orbits an M2 dwarf in 4.17 days. We also present the discovery of an additional transiting planet, TOI-5799 c, that we identified in the TESS data and validated using the SHERLOCK pipeline. TOI-5799 c is a super-Earth with a radius of $R_p=1.76^{+0.11}_{-0.10}$ $R_\oplus$. Its orbital period and its equilibrium temperature are 14.01 days and $T_{\rm eq}=337\pm11$ K, which place it near the inner edge of the habitable zone of its star.We show that these planets are suitable for both radial velocity follow-up and atmospheric characterization. They orbit bright (< 11 $K_{mag}$) early M dwarfs, making them accessible for precise mass measurements. The combination of the planet sizes and stellar brightness of their host stars also make them suitable targets for atmospheric exploration with the JWST. Such studies may provide insights into planet formation and evolution, as TOI-1743-b, TOI-5799-b, and TOI-5799-c lie within the so-called radius valley, while TOI-6223-b is located on the Neptunian ridge in the period-radius plane.
title	TOI-1743 b, TOI-5799 b, TOI-5799 c and TOI-6223 b: TESS discovery and validation of four super-Earth to Neptune-sized planets around M dwarfs
topic	Earth and Planetary Astrophysics
url	https://arxiv.org/abs/2509.05038