TOI−757 b: an eccentric transiting mini−Neptune on a 17.5−d orbit

A. Alqasim; N. Grieves; N. M. Rosário; D. Gandolfi; J. H. Livingston; S. Sousa; K. A. Collins; J. K. Teske; M. Fridlund; J. A. Egger; J. Cabrera; C. Hellier; A. F. Lanza; V. Van Eylen; F. Bouchy; R. J. Oelkers; G. Srdoc; S. Shectman; M. Günther; E. Goffo; T. Wilson; L. M. Serrano; A. Brandeker; S. X. Wang; A. Heitzmann; A. Bonfanti; L. Fossati; Y. Alibert; L. Delrez; R. Sefako; S. Barros; K. I. Collins; O. D.S. Demangeon; S. H. Albrecht; R. Alonso; J. Asquier; T. Barczy; D. Barrado; W. Baumjohann; T. Beck; W. Benz; N. Billot; L. Borsato; C. Broeg; E. M. Bryant; R. P. Butler; W. D. Cochran; A. Collier Cameron; A. C.M. Correia; J. D. Crane; Sz Csizmadia; P. E. Cubillos; M. B. Davies; T. Daylan; M. Deleuil; A. Deline; B. O. Demory; A. Derekas; B. Edwards; D. Ehrenreich; A. Erikson; Z. Essack; A. Fortier; K. Gazeas; M. Gillon; M. Gudel; J. Hasiba; A. P. Hatzes; Ch Helling; T. Hirano; S. B. Howell; S. Hoyer; K. G. Isaak; J. M. Jenkins; S. Kanodia; L. L. Kiss; J. Korth; K. W.F. Lam; J. Laskar; A. Lecavelier des Etangs; M. Lendl; M. B. Lund; R. Luque; A. W. Mann; D. Magrin; P. F.L. Maxted; C. Mordasini; N. Narita; V. Nascimbeni; G. Nowak; G. Olofsson; H. P. Osborn; H. L.M. Osborne; D. Osip; R. Ottensamer; I. Pagano; E. Palle; G. Peter; G. Piotto; D. Pollacco; D. Queloz; R. Ragazzoni; N. Rando; H. Rauer; S. Redfield; I. Ribas; M. Rice; G. R. Ricker; M. Rieder; S. Salmon; N. C. Santos; G. Scandariato; S. Seager; D. Segransan; A. Shporer; A. E. Simon; A. M.S. Smith; M. Stalport; Gy M. Szabo; I. Thompson; J. D. Twicken; S. Udry; R. Vanderspek; V. Van Grootel; J. Venturini; E. Villaver; J. Villaseñor; V. Viotto; I. Walter; N. A. Walton; J. N. Winn; S. W. Yee

doi:10.1093/mnras/stae1767

TOI−757 b: an eccentric transiting mini−Neptune on a 17.5−d orbit

A. Alqasim
, N. Grieves
, N. M. Rosário
, D. Gandolfi
, J. H. Livingston
, S. Sousa
, K. A. Collins
, J. K. Teske
, M. Fridlund
, J. A. Egger
, J. Cabrera
, C. Hellier
, A. F. Lanza
, V. Van Eylen
, F. Bouchy
, R. J. Oelkers
, G. Srdoc
, S. Shectman
, M. Günther
, E. Goffo

T. Wilson, L. M. Serrano, A. Brandeker, S. X. Wang, A. Heitzmann, A. Bonfanti, L. Fossati, Y. Alibert, L. Delrez, R. Sefako, S. Barros, K. I. Collins, O. D.S. Demangeon, S. H. Albrecht, R. Alonso, J. Asquier, T. Barczy, D. Barrado, W. Baumjohann, T. Beck, W. Benz, N. Billot, L. Borsato, C. Broeg, E. M. Bryant, R. P. Butler, W. D. Cochran, A. Collier Cameron, A. C.M. Correia, J. D. Crane, Sz Csizmadia, P. E. Cubillos, M. B. Davies, T. Daylan, M. Deleuil, A. Deline, B. O. Demory, A. Derekas, B. Edwards, D. Ehrenreich, A. Erikson, Z. Essack, A. Fortier, K. Gazeas, M. Gillon, M. Gudel, J. Hasiba, A. P. Hatzes, Ch Helling, T. Hirano, S. B. Howell, S. Hoyer, K. G. Isaak, J. M. Jenkins, S. Kanodia, L. L. Kiss, J. Korth, K. W.F. Lam, J. Laskar, A. Lecavelier des Etangs, M. Lendl, M. B. Lund, R. Luque, A. W. Mann, D. Magrin, P. F.L. Maxted, C. Mordasini, N. Narita, V. Nascimbeni, G. Nowak, G. Olofsson, H. P. Osborn, H. L.M. Osborne, D. Osip, R. Ottensamer, I. Pagano, E. Palle, G. Peter, G. Piotto, D. Pollacco, D. Queloz, R. Ragazzoni, N. Rando, H. Rauer, S. Redfield, I. Ribas, M. Rice, G. R. Ricker, M. Rieder, S. Salmon, N. C. Santos, G. Scandariato, S. Seager, D. Segransan, A. Shporer, A. E. Simon, A. M.S. Smith, M. Stalport, Gy M. Szabo, I. Thompson, J. D. Twicken, S. Udry, R. Vanderspek, V. Van Grootel, J. Venturini, E. Villaver, J. Villaseñor, V. Viotto, I. Walter, N. A. Walton, J. N. Winn, S. W. Yee

UCL Mullard Space Science Laboratory
Université de Genève
Ipatimup Diagnósticos
University of Turin
University of Tokyo
Center for Astrophysics | Harvard & Smithsonian
Carnegie Institution of Washington
Onsala Space Observatory
University of Leiden
University of Bern
DLR
Keele University
INAF Osservatorio Astrofisico di Catania
Texas A&M University
The University of Texas Rio Grande Valley
Kotizarovci Observatory
Observatories of the Carnegie Institution for Science
ESTEC - European Space Research and Technology Centre
Thüringer Landessternwarte Tautenburg
Graz University of Technology
University of Warwick
Stockholm University
Tsinghua University
University of Geneva
Space Research Institute
University of Liège
KU Leuven
South African Astronomical Observatory
Princeton University
George Mason University
Aarhus University
Instituto de Astrofisica de Canarias
Research Unit; CIBERNED and Universidad de La Laguna
Admatis Ltd.
ESAC campus
INAF Osservatorio Astronomico di Padova
The University of Texas at Austin
The University of Texas at Austin
University of St Andrews
University of Coimbra
Istituto di Astrofisica e Planetologia Spaziali (IAPS)
Lund University
McDonnell Center for the Space Sciences
LAM
Eötvös Loránd University
SRON - Netherlands Institute for Space Research
University of New Mexico
University of Athens
University of Vienna
Astrobiology Center
NationalAstronomicalObservatoryofJapan
NASA Ames Research Center
Konkoly Observatory
Lund Observatory
Sorbonne Univ.
Institut d’Astrophysique de Paris
California Institute of Technology
University of Chicago
University of North Carolina
Nicolaus Copernicus University
Massachusetts Institute of Technology
European Southern Observatory
Australian Astronomical Observatory-Las Campanas Observatory, Colina
University of Padova
ETH Zurich
University of Cambridge
TU Berlin
Free University of Berlin
Wesleyan University Middletown
Campus UAB
Institut d’Estudis Espacials de Catalunya (IEEC)
Yale University
Massachusetts Institute of Technology
Massachusetts Institute of Technology
HUN-REN–ELTE Exoplanet Research Group
SETI Institute
Institute of Astronomy

Résultats de recherche: Contribution à un journal › Article › Revue par des pairs

Résumé

We report the spectroscopic confirmation and fundamental properties of TOI−757 b, a mini−Neptune on a 17.5−d orbit transiting a bright star (V = 9.7 mag) discovered by the TESS mission. We acquired high−precision radial velocity measurements with the HARPS, ESPRESSO, and PFS spectrographs to confirm the planet detection and determine its mass. We also acquired space−borne transit photometry with the CHEOPS space telescope to place stronger constraints on the planet radius, supported with ground−based LCOGT photometry. WASP and KELT photometry were used to help constrain the stellar rotation period. We also determined the fundamental parameters of the host star. We find that TOI−757 b has a radius of R_p = 2.5 ± 0.1R_. and a mass of M_p = 10.5⁺₋₂²₁²M, implying a bulk density of ρ_p = 3.6 ± 0.8 g cm⁻³. Our internal composition modelling was unable to constrain the composition of TOI−757 b, highlighting the importance of atmospheric observations for the system. We also find the planet to be highly eccentric with e = 0.39⁺₋₀⁰₀₇⁰⁸, making it one of the very few highly eccentric planets among precisely characterized mini−Neptunes. Based on comparisons to other similar eccentric systems, we find a likely scenario for TOI−757 b’s formation to be high eccentricity migration due to a distant outer companion. We additionally propose the possibility of a more intrinsic explanation for the high eccentricity due to star−star interactions during the earlier epoch of the Galactic disc formation, given the low metallicity and older age of TOI−757.

langue originale	Anglais
Pages (de - à)	1-26
Nombre de pages	26
journal	Monthly Notices of the Royal Astronomical Society
Volume	533
Numéro de publication	1
Les DOIs	https://doi.org/10.1093/mnras/stae1767
état	Publié - 1 sept. 2024
Modification externe	Oui

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10.1093/mnras/stae1767

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Alqasim, A., Grieves, N., Rosário, N. M., Gandolfi, D., Livingston, J. H., Sousa, S., Collins, K. A., Teske, J. K., Fridlund, M., Egger, J. A., Cabrera, J., Hellier, C., Lanza, A. F., Van Eylen, V., Bouchy, F., Oelkers, R. J., Srdoc, G., Shectman, S., Günther, M., ... Yee, S. W. (2024). TOI−757 b: an eccentric transiting mini−Neptune on a 17.5−d orbit. Monthly Notices of the Royal Astronomical Society, 533(1), 1-26. https://doi.org/10.1093/mnras/stae1767

@article{882330d55fd84ee2aeed910ea490dc8f,

title = "TOI−757 b: an eccentric transiting mini−Neptune on a 17.5−d orbit",

abstract = "We report the spectroscopic confirmation and fundamental properties of TOI−757 b, a mini−Neptune on a 17.5−d orbit transiting a bright star (V = 9.7 mag) discovered by the TESS mission. We acquired high−precision radial velocity measurements with the HARPS, ESPRESSO, and PFS spectrographs to confirm the planet detection and determine its mass. We also acquired space−borne transit photometry with the CHEOPS space telescope to place stronger constraints on the planet radius, supported with ground−based LCOGT photometry. WASP and KELT photometry were used to help constrain the stellar rotation period. We also determined the fundamental parameters of the host star. We find that TOI−757 b has a radius of Rp = 2.5 ± 0.1R. and a mass of Mp = 10.5+−2212M, implying a bulk density of ρp = 3.6 ± 0.8 g cm−3. Our internal composition modelling was unable to constrain the composition of TOI−757 b, highlighting the importance of atmospheric observations for the system. We also find the planet to be highly eccentric with e = 0.39+−000708, making it one of the very few highly eccentric planets among precisely characterized mini−Neptunes. Based on comparisons to other similar eccentric systems, we find a likely scenario for TOI−757 b{\textquoteright}s formation to be high eccentricity migration due to a distant outer companion. We additionally propose the possibility of a more intrinsic explanation for the high eccentricity due to star−star interactions during the earlier epoch of the Galactic disc formation, given the low metallicity and older age of TOI−757.",

keywords = "planets and satellites: composition, planets and satellites: interiors, stars: individual: TOI-757 (TIC 130924120), techniques: photometric, techniques: radial velocities",

author = "A. Alqasim and N. Grieves and Ros{\'a}rio, \{N. M.\} and D. Gandolfi and Livingston, \{J. H.\} and S. Sousa and Collins, \{K. A.\} and Teske, \{J. K.\} and M. Fridlund and Egger, \{J. A.\} and J. Cabrera and C. Hellier and Lanza, \{A. F.\} and \{Van Eylen\}, V. and F. Bouchy and Oelkers, \{R. J.\} and G. Srdoc and S. Shectman and M. G{\"u}nther and E. Goffo and T. Wilson and Serrano, \{L. M.\} and A. Brandeker and Wang, \{S. X.\} and A. Heitzmann and A. Bonfanti and L. Fossati and Y. Alibert and L. Delrez and R. Sefako and S. Barros and Collins, \{K. I.\} and Demangeon, \{O. D.S.\} and Albrecht, \{S. H.\} and R. Alonso and J. Asquier and T. Barczy and D. Barrado and W. Baumjohann and T. Beck and W. Benz and N. Billot and L. Borsato and C. Broeg and Bryant, \{E. M.\} and Butler, \{R. P.\} and Cochran, \{W. D.\} and Cameron, \{A. Collier\} and Correia, \{A. C.M.\} and Crane, \{J. D.\} and Sz Csizmadia and Cubillos, \{P. E.\} and Davies, \{M. B.\} and T. Daylan and M. Deleuil and A. Deline and Demory, \{B. O.\} and A. Derekas and B. Edwards and D. Ehrenreich and A. Erikson and Z. Essack and A. Fortier and K. Gazeas and M. Gillon and M. Gudel and J. Hasiba and Hatzes, \{A. P.\} and Ch Helling and T. Hirano and Howell, \{S. B.\} and S. Hoyer and Isaak, \{K. G.\} and Jenkins, \{J. M.\} and S. Kanodia and Kiss, \{L. L.\} and J. Korth and Lam, \{K. W.F.\} and J. Laskar and \{des Etangs\}, \{A. Lecavelier\} and M. Lendl and Lund, \{M. B.\} and R. Luque and Mann, \{A. W.\} and D. Magrin and Maxted, \{P. F.L.\} and C. Mordasini and N. Narita and V. Nascimbeni and G. Nowak and G. Olofsson and Osborn, \{H. P.\} and Osborne, \{H. L.M.\} and D. Osip and R. Ottensamer and I. Pagano and E. Palle and G. Peter and G. Piotto and D. Pollacco and D. Queloz and R. Ragazzoni and N. Rando and H. Rauer and S. Redfield and I. Ribas and M. Rice and Ricker, \{G. R.\} and M. Rieder and S. Salmon and Santos, \{N. C.\} and G. Scandariato and S. Seager and D. Segransan and A. Shporer and Simon, \{A. E.\} and Smith, \{A. M.S.\} and M. Stalport and Szabo, \{Gy M.\} and I. Thompson and Twicken, \{J. D.\} and S. Udry and R. Vanderspek and \{Van Grootel\}, V. and J. Venturini and E. Villaver and J. Villase{\~n}or and V. Viotto and I. Walter and Walton, \{N. A.\} and Winn, \{J. N.\} and Yee, \{S. W.\}",

note = "Publisher Copyright: {\textcopyright} 2024 The Author(s).",

year = "2024",

month = sep,

day = "1",

doi = "10.1093/mnras/stae1767",

language = "English",

volume = "533",

pages = "1--26",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

number = "1",

}

Alqasim, A, Grieves, N, Rosário, NM, Gandolfi, D, Livingston, JH, Sousa, S, Collins, KA, Teske, JK, Fridlund, M, Egger, JA, Cabrera, J, Hellier, C, Lanza, AF, Van Eylen, V, Bouchy, F, Oelkers, RJ, Srdoc, G, Shectman, S, Günther, M, Goffo, E, Wilson, T, Serrano, LM, Brandeker, A, Wang, SX, Heitzmann, A, Bonfanti, A, Fossati, L, Alibert, Y, Delrez, L, Sefako, R, Barros, S, Collins, KI, Demangeon, ODS, Albrecht, SH, Alonso, R, Asquier, J, Barczy, T, Barrado, D, Baumjohann, W, Beck, T, Benz, W, Billot, N, Borsato, L, Broeg, C, Bryant, EM, Butler, RP, Cochran, WD, Cameron, AC, Correia, ACM, Crane, JD, Csizmadia, S, Cubillos, PE, Davies, MB, Daylan, T, Deleuil, M, Deline, A, Demory, BO, Derekas, A, Edwards, B, Ehrenreich, D, Erikson, A, Essack, Z, Fortier, A, Gazeas, K, Gillon, M, Gudel, M, Hasiba, J, Hatzes, AP, Helling, C, Hirano, T, Howell, SB, Hoyer, S, Isaak, KG, Jenkins, JM, Kanodia, S, Kiss, LL, Korth, J, Lam, KWF, Laskar, J, des Etangs, AL, Lendl, M, Lund, MB, Luque, R, Mann, AW, Magrin, D, Maxted, PFL, Mordasini, C, Narita, N, Nascimbeni, V, Nowak, G, Olofsson, G, Osborn, HP, Osborne, HLM, Osip, D, Ottensamer, R, Pagano, I, Palle, E, Peter, G, Piotto, G, Pollacco, D, Queloz, D, Ragazzoni, R, Rando, N, Rauer, H, Redfield, S, Ribas, I, Rice, M, Ricker, GR, Rieder, M, Salmon, S, Santos, NC, Scandariato, G, Seager, S, Segransan, D, Shporer, A, Simon, AE, Smith, AMS, Stalport, M, Szabo, GM, Thompson, I, Twicken, JD, Udry, S, Vanderspek, R, Van Grootel, V, Venturini, J, Villaver, E, Villaseñor, J, Viotto, V, Walter, I, Walton, NA, Winn, JN & Yee, SW 2024, 'TOI−757 b: an eccentric transiting mini−Neptune on a 17.5−d orbit', Monthly Notices of the Royal Astronomical Society, VOL. 533, Numéro 1, p. 1-26. https://doi.org/10.1093/mnras/stae1767

TY - JOUR

T1 - TOI−757 b

T2 - an eccentric transiting mini−Neptune on a 17.5−d orbit

AU - Alqasim, A.

AU - Grieves, N.

AU - Rosário, N. M.

AU - Gandolfi, D.

AU - Livingston, J. H.

AU - Sousa, S.

AU - Collins, K. A.

AU - Teske, J. K.

AU - Fridlund, M.

AU - Egger, J. A.

AU - Cabrera, J.

AU - Hellier, C.

AU - Lanza, A. F.

AU - Van Eylen, V.

AU - Bouchy, F.

AU - Oelkers, R. J.

AU - Srdoc, G.

AU - Shectman, S.

AU - Günther, M.

AU - Goffo, E.

AU - Wilson, T.

AU - Serrano, L. M.

AU - Brandeker, A.

AU - Wang, S. X.

AU - Heitzmann, A.

AU - Bonfanti, A.

AU - Fossati, L.

AU - Alibert, Y.

AU - Delrez, L.

AU - Sefako, R.

AU - Barros, S.

AU - Collins, K. I.

AU - Demangeon, O. D.S.

AU - Albrecht, S. H.

AU - Alonso, R.

AU - Asquier, J.

AU - Barczy, T.

AU - Barrado, D.

AU - Baumjohann, W.

AU - Beck, T.

AU - Benz, W.

AU - Billot, N.

AU - Borsato, L.

AU - Broeg, C.

AU - Bryant, E. M.

AU - Butler, R. P.

AU - Cochran, W. D.

AU - Cameron, A. Collier

AU - Correia, A. C.M.

AU - Crane, J. D.

AU - Csizmadia, Sz

AU - Cubillos, P. E.

AU - Davies, M. B.

AU - Daylan, T.

AU - Deleuil, M.

AU - Deline, A.

AU - Demory, B. O.

AU - Derekas, A.

AU - Edwards, B.

AU - Ehrenreich, D.

AU - Erikson, A.

AU - Essack, Z.

AU - Fortier, A.

AU - Gazeas, K.

AU - Gillon, M.

AU - Gudel, M.

AU - Hasiba, J.

AU - Hatzes, A. P.

AU - Helling, Ch

AU - Hirano, T.

AU - Howell, S. B.

AU - Hoyer, S.

AU - Isaak, K. G.

AU - Jenkins, J. M.

AU - Kanodia, S.

AU - Kiss, L. L.

AU - Korth, J.

AU - Lam, K. W.F.

AU - Laskar, J.

AU - des Etangs, A. Lecavelier

AU - Lendl, M.

AU - Lund, M. B.

AU - Luque, R.

AU - Mann, A. W.

AU - Magrin, D.

AU - Maxted, P. F.L.

AU - Mordasini, C.

AU - Narita, N.

AU - Nascimbeni, V.

AU - Nowak, G.

AU - Olofsson, G.

AU - Osborn, H. P.

AU - Osborne, H. L.M.

AU - Osip, D.

AU - Ottensamer, R.

AU - Pagano, I.

AU - Palle, E.

AU - Peter, G.

AU - Piotto, G.

AU - Pollacco, D.

AU - Queloz, D.

AU - Ragazzoni, R.

AU - Rando, N.

AU - Rauer, H.

AU - Redfield, S.

AU - Ribas, I.

AU - Rice, M.

AU - Ricker, G. R.

AU - Rieder, M.

AU - Salmon, S.

AU - Santos, N. C.

AU - Scandariato, G.

AU - Seager, S.

AU - Segransan, D.

AU - Shporer, A.

AU - Simon, A. E.

AU - Smith, A. M.S.

AU - Stalport, M.

AU - Szabo, Gy M.

AU - Thompson, I.

AU - Twicken, J. D.

AU - Udry, S.

AU - Vanderspek, R.

AU - Van Grootel, V.

AU - Venturini, J.

AU - Villaver, E.

AU - Villaseñor, J.

AU - Viotto, V.

AU - Walter, I.

AU - Walton, N. A.

AU - Winn, J. N.

AU - Yee, S. W.

PY - 2024/9/1

Y1 - 2024/9/1

N2 - We report the spectroscopic confirmation and fundamental properties of TOI−757 b, a mini−Neptune on a 17.5−d orbit transiting a bright star (V = 9.7 mag) discovered by the TESS mission. We acquired high−precision radial velocity measurements with the HARPS, ESPRESSO, and PFS spectrographs to confirm the planet detection and determine its mass. We also acquired space−borne transit photometry with the CHEOPS space telescope to place stronger constraints on the planet radius, supported with ground−based LCOGT photometry. WASP and KELT photometry were used to help constrain the stellar rotation period. We also determined the fundamental parameters of the host star. We find that TOI−757 b has a radius of Rp = 2.5 ± 0.1R. and a mass of Mp = 10.5+−2212M, implying a bulk density of ρp = 3.6 ± 0.8 g cm−3. Our internal composition modelling was unable to constrain the composition of TOI−757 b, highlighting the importance of atmospheric observations for the system. We also find the planet to be highly eccentric with e = 0.39+−000708, making it one of the very few highly eccentric planets among precisely characterized mini−Neptunes. Based on comparisons to other similar eccentric systems, we find a likely scenario for TOI−757 b’s formation to be high eccentricity migration due to a distant outer companion. We additionally propose the possibility of a more intrinsic explanation for the high eccentricity due to star−star interactions during the earlier epoch of the Galactic disc formation, given the low metallicity and older age of TOI−757.

AB - We report the spectroscopic confirmation and fundamental properties of TOI−757 b, a mini−Neptune on a 17.5−d orbit transiting a bright star (V = 9.7 mag) discovered by the TESS mission. We acquired high−precision radial velocity measurements with the HARPS, ESPRESSO, and PFS spectrographs to confirm the planet detection and determine its mass. We also acquired space−borne transit photometry with the CHEOPS space telescope to place stronger constraints on the planet radius, supported with ground−based LCOGT photometry. WASP and KELT photometry were used to help constrain the stellar rotation period. We also determined the fundamental parameters of the host star. We find that TOI−757 b has a radius of Rp = 2.5 ± 0.1R. and a mass of Mp = 10.5+−2212M, implying a bulk density of ρp = 3.6 ± 0.8 g cm−3. Our internal composition modelling was unable to constrain the composition of TOI−757 b, highlighting the importance of atmospheric observations for the system. We also find the planet to be highly eccentric with e = 0.39+−000708, making it one of the very few highly eccentric planets among precisely characterized mini−Neptunes. Based on comparisons to other similar eccentric systems, we find a likely scenario for TOI−757 b’s formation to be high eccentricity migration due to a distant outer companion. We additionally propose the possibility of a more intrinsic explanation for the high eccentricity due to star−star interactions during the earlier epoch of the Galactic disc formation, given the low metallicity and older age of TOI−757.

KW - planets and satellites: composition

KW - planets and satellites: interiors

KW - stars: individual: TOI-757 (TIC 130924120)

KW - techniques: photometric

KW - techniques: radial velocities

UR - https://www.scopus.com/pages/publications/85200850226

U2 - 10.1093/mnras/stae1767

DO - 10.1093/mnras/stae1767

M3 - Article

AN - SCOPUS:85200850226

SN - 0035-8711

VL - 533

SP - 1

EP - 26

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 1

ER -

TOI−757 b: an eccentric transiting mini−Neptune on a 17.5−d orbit

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