A High-Eccentricity Warm Jupiter Orbiting TOI-4127

Arvind F. Gupta; Jonathan M. Jackson; Guillaume Hébrard; Andrea S.J. Lin; Keivan G. Stassun; Jiayin Dong; Steven Villanueva; Diana Dragomir; Suvrath Mahadevan; Jason T. Wright; Jose M. Almenara; Cullen H. Blake; Isabelle Boisse; Pía Cortés-Zuleta; Paul A. Dalba; Rodrigo F. Díaz; Eric B. Ford; Thierry Forveille; Robert Gagliano; Samuel Halverson; Neda Heidari; Shubham Kanodia; Flavien Kiefer; David w. Latham; Michael W. McElwain; Ismael Mireles; Claire Moutou; Joshua Pepper; George R. Ricker; Paul Robertson; Arpita Roy; Martin Schlecker; Christian Schwab; S. Seager; Avi Shporer; Guđmundur Stefánsson; Ryan C. Terrien; Eric B. Ting; Joshua N. Winn; Allison Youngblood

doi:10.3847/1538-3881/accb9b

A High-Eccentricity Warm Jupiter Orbiting TOI-4127

Arvind F. Gupta, Jonathan M. Jackson, Guillaume Hébrard, Andrea S.J. Lin, Keivan G. Stassun, Jiayin Dong, Steven Villanueva, Diana Dragomir, Suvrath Mahadevan, Jason T. Wright, Jose M. Almenara, Cullen H. Blake, Isabelle Boisse, Pía Cortés-Zuleta, Paul A. Dalba, Rodrigo F. Díaz, Eric B. Ford, Thierry Forveille, Robert Gagliano, Samuel HalversonNeda Heidari, Shubham Kanodia, Flavien Kiefer, David w. Latham, Michael W. McElwain, Ismael Mireles, Claire Moutou, Joshua Pepper, George R. Ricker, Paul Robertson, Arpita Roy, Martin Schlecker, Christian Schwab, S. Seager, Avi Shporer, Guđmundur Stefánsson, Ryan C. Terrien, Eric B. Ting, Joshua N. Winn, Allison Youngblood

Astrophysical Sciences

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6 Scopus citations

Abstract

We report the discovery of TOI-4127 b, which is a transiting, Jupiter-sized exoplanet on a long-period ( P = 56.39879 − 0.00010 + 0.00010 days) and a high-eccentricity orbit around a late F-type dwarf star. This warm Jupiter was first detected and identified as a promising candidate from a search for single-transit signals in TESS Sector 20 data, and was later characterized as a planet following two subsequent transits (TESS Sectors 26 and 53) and follow-up ground-based RV observations with the NEID and SOPHIE spectrographs. We jointly fit the transit and RV data to constrain the physical ( R p = 1.096 − 0.032 + 0.039 R J , M p = 2.30 − 0.11 + 0.11 M J ) and orbital parameters of the exoplanet. Given its high orbital eccentricity ( e = 0.7471 − 0.0086 + 0.0078 ), TOI-4127 b is a compelling candidate for studies of warm Jupiter populations and of hot Jupiter formation pathways. We show that the present periastron separation of TOI-4127 b is too large for high-eccentricity tidal migration to circularize its orbit, and that TOI-4127 b is unlikely to be a hot Jupiter progenitor unless it is undergoing angular momentum exchange with an undetected outer companion. Although we find no evidence for an external companion, the available observational data are insufficient to rule out the presence of a perturber that can excite eccentricity oscillations and facilitate tidal migration.

Original language	English (US)
Article number	234
Journal	Astronomical Journal
Volume	165
Issue number	6
DOIs	https://doi.org/10.3847/1538-3881/accb9b
State	Published - Jun 1 2023

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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10.3847/1538-3881/accb9b

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Gupta, A. F., Jackson, J. M., Hébrard, G., Lin, A. S. J., Stassun, K. G., Dong, J., Villanueva, S., Dragomir, D., Mahadevan, S., Wright, J. T., Almenara, J. M., Blake, C. H., Boisse, I., Cortés-Zuleta, P., Dalba, P. A., Díaz, R. F., Ford, E. B., Forveille, T., Gagliano, R., ... Youngblood, A. (2023). A High-Eccentricity Warm Jupiter Orbiting TOI-4127. Astronomical Journal, 165(6), Article 234. https://doi.org/10.3847/1538-3881/accb9b

@article{dfff4990cd8c45169664cf26d1f13d23,

title = "A High-Eccentricity Warm Jupiter Orbiting TOI-4127",

abstract = "We report the discovery of TOI-4127 b, which is a transiting, Jupiter-sized exoplanet on a long-period ( P = 56.39879 − 0.00010 + 0.00010 days) and a high-eccentricity orbit around a late F-type dwarf star. This warm Jupiter was first detected and identified as a promising candidate from a search for single-transit signals in TESS Sector 20 data, and was later characterized as a planet following two subsequent transits (TESS Sectors 26 and 53) and follow-up ground-based RV observations with the NEID and SOPHIE spectrographs. We jointly fit the transit and RV data to constrain the physical ( R p = 1.096 − 0.032 + 0.039 R J , M p = 2.30 − 0.11 + 0.11 M J ) and orbital parameters of the exoplanet. Given its high orbital eccentricity ( e = 0.7471 − 0.0086 + 0.0078 ), TOI-4127 b is a compelling candidate for studies of warm Jupiter populations and of hot Jupiter formation pathways. We show that the present periastron separation of TOI-4127 b is too large for high-eccentricity tidal migration to circularize its orbit, and that TOI-4127 b is unlikely to be a hot Jupiter progenitor unless it is undergoing angular momentum exchange with an undetected outer companion. Although we find no evidence for an external companion, the available observational data are insufficient to rule out the presence of a perturber that can excite eccentricity oscillations and facilitate tidal migration.",

author = "Gupta, {Arvind F.} and Jackson, {Jonathan M.} and Guillaume H{\'e}brard and Lin, {Andrea S.J.} and Stassun, {Keivan G.} and Jiayin Dong and Steven Villanueva and Diana Dragomir and Suvrath Mahadevan and Wright, {Jason T.} and Almenara, {Jose M.} and Blake, {Cullen H.} and Isabelle Boisse and P{\'i}a Cort{\'e}s-Zuleta and Dalba, {Paul A.} and D{\'i}az, {Rodrigo F.} and Ford, {Eric B.} and Thierry Forveille and Robert Gagliano and Samuel Halverson and Neda Heidari and Shubham Kanodia and Flavien Kiefer and Latham, {David w.} and McElwain, {Michael W.} and Ismael Mireles and Claire Moutou and Joshua Pepper and Ricker, {George R.} and Paul Robertson and Arpita Roy and Martin Schlecker and Christian Schwab and S. Seager and Avi Shporer and Gu{\d}mundur Stef{\'a}nsson and Terrien, {Ryan C.} and Ting, {Eric B.} and Winn, {Joshua N.} and Allison Youngblood",

note = "Publisher Copyright: {\textcopyright} 2023. The Author(s). Published by the American Astronomical Society.",

year = "2023",

month = jun,

day = "1",

doi = "10.3847/1538-3881/accb9b",

language = "English (US)",

volume = "165",

journal = "Astronomical Journal",

issn = "0004-6256",

publisher = "IOP Publishing Ltd.",

number = "6",

}

Gupta, AF, Jackson, JM, Hébrard, G, Lin, ASJ, Stassun, KG, Dong, J, Villanueva, S, Dragomir, D, Mahadevan, S, Wright, JT, Almenara, JM, Blake, CH, Boisse, I, Cortés-Zuleta, P, Dalba, PA, Díaz, RF, Ford, EB, Forveille, T, Gagliano, R, Halverson, S, Heidari, N, Kanodia, S, Kiefer, F, Latham, DW, McElwain, MW, Mireles, I, Moutou, C, Pepper, J, Ricker, GR, Robertson, P, Roy, A, Schlecker, M, Schwab, C, Seager, S, Shporer, A, Stefánsson, G, Terrien, RC, Ting, EB, Winn, JN & Youngblood, A 2023, 'A High-Eccentricity Warm Jupiter Orbiting TOI-4127', Astronomical Journal, vol. 165, no. 6, 234. https://doi.org/10.3847/1538-3881/accb9b

TY - JOUR

T1 - A High-Eccentricity Warm Jupiter Orbiting TOI-4127

AU - Gupta, Arvind F.

AU - Jackson, Jonathan M.

AU - Hébrard, Guillaume

AU - Lin, Andrea S.J.

AU - Stassun, Keivan G.

AU - Dong, Jiayin

AU - Villanueva, Steven

AU - Dragomir, Diana

AU - Mahadevan, Suvrath

AU - Wright, Jason T.

AU - Almenara, Jose M.

AU - Blake, Cullen H.

AU - Boisse, Isabelle

AU - Cortés-Zuleta, Pía

AU - Dalba, Paul A.

AU - Díaz, Rodrigo F.

AU - Ford, Eric B.

AU - Forveille, Thierry

AU - Gagliano, Robert

AU - Halverson, Samuel

AU - Heidari, Neda

AU - Kanodia, Shubham

AU - Kiefer, Flavien

AU - Latham, David w.

AU - McElwain, Michael W.

AU - Mireles, Ismael

AU - Moutou, Claire

AU - Pepper, Joshua

AU - Ricker, George R.

AU - Robertson, Paul

AU - Roy, Arpita

AU - Schlecker, Martin

AU - Schwab, Christian

AU - Seager, S.

AU - Shporer, Avi

AU - Stefánsson, Guđmundur

AU - Terrien, Ryan C.

AU - Ting, Eric B.

AU - Winn, Joshua N.

AU - Youngblood, Allison

PY - 2023/6/1

Y1 - 2023/6/1

N2 - We report the discovery of TOI-4127 b, which is a transiting, Jupiter-sized exoplanet on a long-period ( P = 56.39879 − 0.00010 + 0.00010 days) and a high-eccentricity orbit around a late F-type dwarf star. This warm Jupiter was first detected and identified as a promising candidate from a search for single-transit signals in TESS Sector 20 data, and was later characterized as a planet following two subsequent transits (TESS Sectors 26 and 53) and follow-up ground-based RV observations with the NEID and SOPHIE spectrographs. We jointly fit the transit and RV data to constrain the physical ( R p = 1.096 − 0.032 + 0.039 R J , M p = 2.30 − 0.11 + 0.11 M J ) and orbital parameters of the exoplanet. Given its high orbital eccentricity ( e = 0.7471 − 0.0086 + 0.0078 ), TOI-4127 b is a compelling candidate for studies of warm Jupiter populations and of hot Jupiter formation pathways. We show that the present periastron separation of TOI-4127 b is too large for high-eccentricity tidal migration to circularize its orbit, and that TOI-4127 b is unlikely to be a hot Jupiter progenitor unless it is undergoing angular momentum exchange with an undetected outer companion. Although we find no evidence for an external companion, the available observational data are insufficient to rule out the presence of a perturber that can excite eccentricity oscillations and facilitate tidal migration.

AB - We report the discovery of TOI-4127 b, which is a transiting, Jupiter-sized exoplanet on a long-period ( P = 56.39879 − 0.00010 + 0.00010 days) and a high-eccentricity orbit around a late F-type dwarf star. This warm Jupiter was first detected and identified as a promising candidate from a search for single-transit signals in TESS Sector 20 data, and was later characterized as a planet following two subsequent transits (TESS Sectors 26 and 53) and follow-up ground-based RV observations with the NEID and SOPHIE spectrographs. We jointly fit the transit and RV data to constrain the physical ( R p = 1.096 − 0.032 + 0.039 R J , M p = 2.30 − 0.11 + 0.11 M J ) and orbital parameters of the exoplanet. Given its high orbital eccentricity ( e = 0.7471 − 0.0086 + 0.0078 ), TOI-4127 b is a compelling candidate for studies of warm Jupiter populations and of hot Jupiter formation pathways. We show that the present periastron separation of TOI-4127 b is too large for high-eccentricity tidal migration to circularize its orbit, and that TOI-4127 b is unlikely to be a hot Jupiter progenitor unless it is undergoing angular momentum exchange with an undetected outer companion. Although we find no evidence for an external companion, the available observational data are insufficient to rule out the presence of a perturber that can excite eccentricity oscillations and facilitate tidal migration.

UR - http://www.scopus.com/inward/record.url?scp=85159200055&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85159200055&partnerID=8YFLogxK

U2 - 10.3847/1538-3881/accb9b

DO - 10.3847/1538-3881/accb9b

M3 - Article

AN - SCOPUS:85159200055

SN - 0004-6256

VL - 165

JO - Astronomical Journal

JF - Astronomical Journal

IS - 6

M1 - 234

ER -

A High-Eccentricity Warm Jupiter Orbiting TOI-4127

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