Imagen de Portada

TOI-1080 b: a temperate, rocky planet orbiting a quiet M4V host

Fuente: arXiv

Guardado en:

Detalles Bibliográficos
Autores principales:	Chew, Y. Gómez Maqueo, Dransfield, G., Barkaoui, K., Cadieux, C., Ducrot, E., Rackham, B. V., Timmermans, M., Burgasser, A. J., Segura, A., Stassun, K. G., Ziegler, C., Soubkiou, A., Almenara, J. M., Demory, B. O., Gillon, M., Jenkins, J. M., Jofré, E., Khandelwal, A., Páez, S., Petrucci, R., Parc, L., Marcano, M. Pichardo, Plauchu-Frayn, I., Schroffenegger, U., Schwarz, R., Tan, T. G., Triaud, A. H. M. J., Benkhaldoun, Z., Bonfils, X., Bouchy, F., Collins, K. A., Davoudi, F., Doyon, R., Gachaoui, M., Hooton, M. J., Jehin, E., Pozuelos, F. J., Scott, M. G., Yalçınkaya, S., Lang, F. Zong, Zúñiga-Fernández, S., De Medeiros, J. R., González-Hernández, J. I., Santos, N. C.
Formato:	Preprint
Publicado:	2026
Materias:	Earth and Planetary Astrophysics
Acceso en línea:	Acceder al recurso
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

_version_	1866908857024905216
author	Chew, Y. Gómez Maqueo Dransfield, G. Barkaoui, K. Cadieux, C. Ducrot, E. Rackham, B. V. Timmermans, M. Burgasser, A. J. Segura, A. Stassun, K. G. Ziegler, C. Soubkiou, A. Almenara, J. M. Demory, B. O. Gillon, M. Jenkins, J. M. Jofré, E. Khandelwal, A. Páez, S. Petrucci, R. Parc, L. Marcano, M. Pichardo Plauchu-Frayn, I. Schroffenegger, U. Schwarz, R. Tan, T. G. Triaud, A. H. M. J. Benkhaldoun, Z. Bonfils, X. Bouchy, F. Collins, K. A. Davoudi, F. Doyon, R. Gachaoui, M. Hooton, M. J. Jehin, E. Pozuelos, F. J. Scott, M. G. Yalçınkaya, S. Lang, F. Zong Zúñiga-Fernández, S. De Medeiros, J. R. González-Hernández, J. I. Santos, N. C.
author_facet	Chew, Y. Gómez Maqueo Dransfield, G. Barkaoui, K. Cadieux, C. Ducrot, E. Rackham, B. V. Timmermans, M. Burgasser, A. J. Segura, A. Stassun, K. G. Ziegler, C. Soubkiou, A. Almenara, J. M. Demory, B. O. Gillon, M. Jenkins, J. M. Jofré, E. Khandelwal, A. Páez, S. Petrucci, R. Parc, L. Marcano, M. Pichardo Plauchu-Frayn, I. Schroffenegger, U. Schwarz, R. Tan, T. G. Triaud, A. H. M. J. Benkhaldoun, Z. Bonfils, X. Bouchy, F. Collins, K. A. Davoudi, F. Doyon, R. Gachaoui, M. Hooton, M. J. Jehin, E. Pozuelos, F. J. Scott, M. G. Yalçınkaya, S. Lang, F. Zong Zúñiga-Fernández, S. De Medeiros, J. R. González-Hernández, J. I. Santos, N. C.
contents	We present the detection and validation of a small, temperate transiting exoplanet orbiting TOI-1080 every 3.9652482$^{+0.0000014}_{-0.0000015}$ days. The host is a quiet M4V star at 25.6 pc. The planet signal was first detected by TESS and validated using TESS and ground-based observations. By fitting the available light curves, the planet radius is measured to be 1.200+- 0.058 Rearth and its equilibrium temperature of 368$^{+12}_{-10}$ K. With NIRPS radial velocities, we are able to place a 3-sigma upper limit on the mass of TOI-1080 b of 10.7 Mearth. Our injection-recovery tests enable us to discard additional transiting planets in the TOI-1080 system with radii down to 0.9 Rearth and periods between 0.5 and 7.7 days, and planets with radii larger than 1.4 Rearth for periods up to 19 days. We demonstrate that it is highly amenable to characterisation of its mass and putative atmosphere. In particular, we find that TOI-1080 b is an exceptional target for the ongoing JWST+HST Rocky Worlds DDT programme, having a priority score that is higher than four out of nine targets currently being investigated by the programme. TOI-1080 b can be added to the sample of nearby benchmark planets accessible for detailed study with JWST.
format	Preprint
id	arxiv_https___arxiv_org_abs_2603_00385
institution	arXiv
publishDate	2026
record_format	arxiv
spellingShingle	TOI-1080 b: a temperate, rocky planet orbiting a quiet M4V host Chew, Y. Gómez Maqueo Dransfield, G. Barkaoui, K. Cadieux, C. Ducrot, E. Rackham, B. V. Timmermans, M. Burgasser, A. J. Segura, A. Stassun, K. G. Ziegler, C. Soubkiou, A. Almenara, J. M. Demory, B. O. Gillon, M. Jenkins, J. M. Jofré, E. Khandelwal, A. Páez, S. Petrucci, R. Parc, L. Marcano, M. Pichardo Plauchu-Frayn, I. Schroffenegger, U. Schwarz, R. Tan, T. G. Triaud, A. H. M. J. Benkhaldoun, Z. Bonfils, X. Bouchy, F. Collins, K. A. Davoudi, F. Doyon, R. Gachaoui, M. Hooton, M. J. Jehin, E. Pozuelos, F. J. Scott, M. G. Yalçınkaya, S. Lang, F. Zong Zúñiga-Fernández, S. De Medeiros, J. R. González-Hernández, J. I. Santos, N. C. Earth and Planetary Astrophysics We present the detection and validation of a small, temperate transiting exoplanet orbiting TOI-1080 every 3.9652482$^{+0.0000014}_{-0.0000015}$ days. The host is a quiet M4V star at 25.6 pc. The planet signal was first detected by TESS and validated using TESS and ground-based observations. By fitting the available light curves, the planet radius is measured to be 1.200+- 0.058 Rearth and its equilibrium temperature of 368$^{+12}_{-10}$ K. With NIRPS radial velocities, we are able to place a 3-sigma upper limit on the mass of TOI-1080 b of 10.7 Mearth. Our injection-recovery tests enable us to discard additional transiting planets in the TOI-1080 system with radii down to 0.9 Rearth and periods between 0.5 and 7.7 days, and planets with radii larger than 1.4 Rearth for periods up to 19 days. We demonstrate that it is highly amenable to characterisation of its mass and putative atmosphere. In particular, we find that TOI-1080 b is an exceptional target for the ongoing JWST+HST Rocky Worlds DDT programme, having a priority score that is higher than four out of nine targets currently being investigated by the programme. TOI-1080 b can be added to the sample of nearby benchmark planets accessible for detailed study with JWST.
title	TOI-1080 b: a temperate, rocky planet orbiting a quiet M4V host
topic	Earth and Planetary Astrophysics
url	https://arxiv.org/abs/2603.00385