A Pair of Warm Giant Planets near the 2:1 Mean Motion Resonance around the K-dwarf Star TOI-2202

Trifon Trifonov; Rafael Brahm; Nestor Espinoza; Thomas Henning; Andrés Jordán; David Nesvorny; Rebekah I. Dawson; Jack J. Lissauer; Man Hoi Lee; Diana Kossakowski; Felipe I. Rojas; Melissa J. Hobson; Paula Sarkis; Martin Schlecker; Bertram Bitsch; Gaspar Bakos; Mauro Barbieri; W. Bhatti; R. Paul Butler; Jeffrey D. Crane; Sangeetha Nandakumar; Matías R. Díaz; Stephen Shectman; Johanna Teske; Pascal Torres; Vincent Suc; Jose I. Vines; Sharon X. Wang; George R. Ricker; Avi Shporer; Andrew Vanderburg; Diana Dragomir; Roland Vanderspek; Christopher J. Burke; Tansu Daylan; Bernie Shiao; Jon M. Jenkins; Bill Wohler; Sara Seager; Joshua N. Winn

doi:10.3847/1538-3881/ac1bbe

A Pair of Warm Giant Planets near the 2:1 Mean Motion Resonance around the K-dwarf Star TOI-2202

Trifon Trifonov, Rafael Brahm, Nestor Espinoza, Thomas Henning, Andrés Jordán, David Nesvorny, Rebekah I. Dawson, Jack J. Lissauer, Man Hoi Lee, Diana Kossakowski, Felipe I. Rojas, Melissa J. Hobson, Paula Sarkis, Martin Schlecker, Bertram Bitsch, Gaspar Bakos, Mauro Barbieri, W. Bhatti, R. Paul Butler, Jeffrey D. CraneSangeetha Nandakumar, Matías R. Díaz, Stephen Shectman, Johanna Teske, Pascal Torres, Vincent Suc, Jose I. Vines, Sharon X. Wang, George R. Ricker, Avi Shporer, Andrew Vanderburg, Diana Dragomir, Roland Vanderspek, Christopher J. Burke, Tansu Daylan, Bernie Shiao, Jon M. Jenkins, Bill Wohler, Sara Seager, Joshua N. Winn

Astrophysical Sciences

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Abstract

TOI-2202 b is a transiting warm Jovian-mass planet with an orbital period of P = 11.91 days identified from the Full Frame Images data of five different sectors of the TESS mission. Ten TESS transits of TOI-2202 b combined with three follow-up light curves obtained with the CHAT robotic telescope show strong transit timing variations (TTVs) with an amplitude of about 1.2 hr. Radial velocity follow-up with FEROS, HARPS, and PFS confirms the planetary nature of the transiting candidate (a b = 0.096 0.001 au, m b = 0.98 0.06 M Jup), and a dynamical analysis of RVs, transit data, and TTVs points to an outer Saturn-mass companion (a c = 0.155 0.002 au, m c = 0.37 0.10 M Jup) near the 2:1 mean motion resonance. Our stellar modeling indicates that TOI-2202 is an early K-type star with a mass of 0.82 M o˙, a radius of 0.79 R o˙, and solar-like metallicity. The TOI-2202 system is very interesting because of the two warm Jovian-mass planets near the 2:1 mean motion resonance, which is a rare configuration, and their formation and dynamical evolution are still not well understood.

Original language	English (US)
Article number	283
Journal	Astronomical Journal
Volume	162
Issue number	6
DOIs	https://doi.org/10.3847/1538-3881/ac1bbe
State	Published - Dec 1 2021

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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Trifonov, T., Brahm, R., Espinoza, N., Henning, T., Jordán, A., Nesvorny, D., Dawson, R. I., Lissauer, J. J., Lee, M. H., Kossakowski, D., Rojas, F. I., Hobson, M. J., Sarkis, P., Schlecker, M., Bitsch, B., Bakos, G., Barbieri, M., Bhatti, W., Butler, R. P., ... Winn, J. N. (2021). A Pair of Warm Giant Planets near the 2:1 Mean Motion Resonance around the K-dwarf Star TOI-2202. Astronomical Journal, 162(6), Article 283. https://doi.org/10.3847/1538-3881/ac1bbe

@article{74e6938466e741e4b7d73f51be1eac03,

title = "A Pair of Warm Giant Planets near the 2:1 Mean Motion Resonance around the K-dwarf Star TOI-2202",

abstract = "TOI-2202 b is a transiting warm Jovian-mass planet with an orbital period of P = 11.91 days identified from the Full Frame Images data of five different sectors of the TESS mission. Ten TESS transits of TOI-2202 b combined with three follow-up light curves obtained with the CHAT robotic telescope show strong transit timing variations (TTVs) with an amplitude of about 1.2 hr. Radial velocity follow-up with FEROS, HARPS, and PFS confirms the planetary nature of the transiting candidate (a b = 0.096 0.001 au, m b = 0.98 0.06 M Jup), and a dynamical analysis of RVs, transit data, and TTVs points to an outer Saturn-mass companion (a c = 0.155 0.002 au, m c = 0.37 0.10 M Jup) near the 2:1 mean motion resonance. Our stellar modeling indicates that TOI-2202 is an early K-type star with a mass of 0.82 M o˙, a radius of 0.79 R o˙, and solar-like metallicity. The TOI-2202 system is very interesting because of the two warm Jovian-mass planets near the 2:1 mean motion resonance, which is a rare configuration, and their formation and dynamical evolution are still not well understood.",

author = "Trifon Trifonov and Rafael Brahm and Nestor Espinoza and Thomas Henning and Andr{\'e}s Jord{\'a}n and David Nesvorny and Dawson, {Rebekah I.} and Lissauer, {Jack J.} and Lee, {Man Hoi} and Diana Kossakowski and Rojas, {Felipe I.} and Hobson, {Melissa J.} and Paula Sarkis and Martin Schlecker and Bertram Bitsch and Gaspar Bakos and Mauro Barbieri and W. Bhatti and Butler, {R. Paul} and Crane, {Jeffrey D.} and Sangeetha Nandakumar and D{\'i}az, {Mat{\'i}as R.} and Stephen Shectman and Johanna Teske and Pascal Torres and Vincent Suc and Vines, {Jose I.} and Wang, {Sharon X.} and Ricker, {George R.} and Avi Shporer and Andrew Vanderburg and Diana Dragomir and Roland Vanderspek and Burke, {Christopher J.} and Tansu Daylan and Bernie Shiao and Jenkins, {Jon M.} and Bill Wohler and Sara Seager and Winn, {Joshua N.}",

year = "2021",

month = dec,

day = "1",

doi = "10.3847/1538-3881/ac1bbe",

language = "English (US)",

volume = "162",

journal = "Astronomical Journal",

issn = "0004-6256",

publisher = "American Astronomical Society",

number = "6",

}

Trifonov, T, Brahm, R, Espinoza, N, Henning, T, Jordán, A, Nesvorny, D, Dawson, RI, Lissauer, JJ, Lee, MH, Kossakowski, D, Rojas, FI, Hobson, MJ, Sarkis, P, Schlecker, M, Bitsch, B, Bakos, G, Barbieri, M, Bhatti, W, Butler, RP, Crane, JD, Nandakumar, S, Díaz, MR, Shectman, S, Teske, J, Torres, P, Suc, V, Vines, JI, Wang, SX, Ricker, GR, Shporer, A, Vanderburg, A, Dragomir, D, Vanderspek, R, Burke, CJ, Daylan, T, Shiao, B, Jenkins, JM, Wohler, B, Seager, S & Winn, JN 2021, 'A Pair of Warm Giant Planets near the 2:1 Mean Motion Resonance around the K-dwarf Star TOI-2202', Astronomical Journal, vol. 162, no. 6, 283. https://doi.org/10.3847/1538-3881/ac1bbe

TY - JOUR

T1 - A Pair of Warm Giant Planets near the 2:1 Mean Motion Resonance around the K-dwarf Star TOI-2202

AU - Trifonov, Trifon

AU - Brahm, Rafael

AU - Espinoza, Nestor

AU - Henning, Thomas

AU - Jordán, Andrés

AU - Nesvorny, David

AU - Dawson, Rebekah I.

AU - Lissauer, Jack J.

AU - Lee, Man Hoi

AU - Kossakowski, Diana

AU - Rojas, Felipe I.

AU - Hobson, Melissa J.

AU - Sarkis, Paula

AU - Schlecker, Martin

AU - Bitsch, Bertram

AU - Bakos, Gaspar

AU - Barbieri, Mauro

AU - Bhatti, W.

AU - Butler, R. Paul

AU - Crane, Jeffrey D.

AU - Nandakumar, Sangeetha

AU - Díaz, Matías R.

AU - Shectman, Stephen

AU - Teske, Johanna

AU - Torres, Pascal

AU - Suc, Vincent

AU - Vines, Jose I.

AU - Wang, Sharon X.

AU - Ricker, George R.

AU - Shporer, Avi

AU - Vanderburg, Andrew

AU - Dragomir, Diana

AU - Vanderspek, Roland

AU - Burke, Christopher J.

AU - Daylan, Tansu

AU - Shiao, Bernie

AU - Jenkins, Jon M.

AU - Wohler, Bill

AU - Seager, Sara

AU - Winn, Joshua N.

PY - 2021/12/1

Y1 - 2021/12/1

N2 - TOI-2202 b is a transiting warm Jovian-mass planet with an orbital period of P = 11.91 days identified from the Full Frame Images data of five different sectors of the TESS mission. Ten TESS transits of TOI-2202 b combined with three follow-up light curves obtained with the CHAT robotic telescope show strong transit timing variations (TTVs) with an amplitude of about 1.2 hr. Radial velocity follow-up with FEROS, HARPS, and PFS confirms the planetary nature of the transiting candidate (a b = 0.096 0.001 au, m b = 0.98 0.06 M Jup), and a dynamical analysis of RVs, transit data, and TTVs points to an outer Saturn-mass companion (a c = 0.155 0.002 au, m c = 0.37 0.10 M Jup) near the 2:1 mean motion resonance. Our stellar modeling indicates that TOI-2202 is an early K-type star with a mass of 0.82 M o˙, a radius of 0.79 R o˙, and solar-like metallicity. The TOI-2202 system is very interesting because of the two warm Jovian-mass planets near the 2:1 mean motion resonance, which is a rare configuration, and their formation and dynamical evolution are still not well understood.

AB - TOI-2202 b is a transiting warm Jovian-mass planet with an orbital period of P = 11.91 days identified from the Full Frame Images data of five different sectors of the TESS mission. Ten TESS transits of TOI-2202 b combined with three follow-up light curves obtained with the CHAT robotic telescope show strong transit timing variations (TTVs) with an amplitude of about 1.2 hr. Radial velocity follow-up with FEROS, HARPS, and PFS confirms the planetary nature of the transiting candidate (a b = 0.096 0.001 au, m b = 0.98 0.06 M Jup), and a dynamical analysis of RVs, transit data, and TTVs points to an outer Saturn-mass companion (a c = 0.155 0.002 au, m c = 0.37 0.10 M Jup) near the 2:1 mean motion resonance. Our stellar modeling indicates that TOI-2202 is an early K-type star with a mass of 0.82 M o˙, a radius of 0.79 R o˙, and solar-like metallicity. The TOI-2202 system is very interesting because of the two warm Jovian-mass planets near the 2:1 mean motion resonance, which is a rare configuration, and their formation and dynamical evolution are still not well understood.

UR - http://www.scopus.com/inward/record.url?scp=85120824217&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85120824217&partnerID=8YFLogxK

U2 - 10.3847/1538-3881/ac1bbe

DO - 10.3847/1538-3881/ac1bbe

M3 - Article

AN - SCOPUS:85120824217

SN - 0004-6256

VL - 162

JO - Astronomical Journal

JF - Astronomical Journal

IS - 6

M1 - 283

ER -

A Pair of Warm Giant Planets near the 2:1 Mean Motion Resonance around the K-dwarf Star TOI-2202

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