TOI-1338: TESS' First Transiting Circumbinary Planet

Veselin B. Kostov; Jerome A. Orosz; Adina D. Feinstein; William F. Welsh; Wolf Cukier; Nader Haghighipour; Billy Quarles; David V. Martin; Benjamin T. Montet; Guillermo Torres; Amaury H.M.J. Triaud; Thomas Barclay; Patricia Boyd; Cesar Briceno; Andrew Collier Cameron; Alexandre C.M. Correia; Emily A. Gilbert; Samuel Gill; Michaël Gillon; Jacob Haqq-Misra; Coel Hellier; Courtney Dressing; Daniel C. Fabrycky; Gabor Furesz; Jon M. Jenkins; Stephen R. Kane; Ravi Kopparapu; Vedad Kunovac Hodžić; David W. Latham; Nicholas Law; Alan M. Levine; Gongjie Li; Chris Lintott; Jack J. Lissauer; Andrew W. Mann; Tsevi Mazeh; Rosemary Mardling; Pierre F.L. Maxted; Nora Eisner; Francesco Pepe; Joshua Pepper; Don Pollacco; Samuel N. Quinn; Elisa V. Quintana; Jason F. Rowe; George Ricker; Mark E. Rose; S. Seager; Alexandre Santerne; Damien Ségransan; Donald R. Short; Jeffrey C. Smith; Matthew R. Standing; Andrei Tokovinin; Trifon Trifonov; Oliver Turner; Joseph D. Twicken; Stéphane Udry; Roland Vanderspek; Joshua N. Winn; Eric T. Wolf; Carl Ziegler; Peter Ansorge; Frank Barnet; Joel Bergeron; Marc Huten; Giuseppe Pappa; Timo Van Der Straeten

doi:10.3847/1538-3881/ab8a48

TOI-1338: TESS' First Transiting Circumbinary Planet

Veselin B. Kostov, Jerome A. Orosz, Adina D. Feinstein, William F. Welsh, Wolf Cukier, Nader Haghighipour, Billy Quarles, David V. Martin, Benjamin T. Montet, Guillermo Torres, Amaury H.M.J. Triaud, Thomas Barclay, Patricia Boyd, Cesar Briceno, Andrew Collier Cameron, Alexandre C.M. Correia, Emily A. Gilbert, Samuel Gill, Michaël Gillon, Jacob Haqq-MisraCoel Hellier, Courtney Dressing, Daniel C. Fabrycky, Gabor Furesz, Jon M. Jenkins, Stephen R. Kane, Ravi Kopparapu, Vedad Kunovac Hodžić, David W. Latham, Nicholas Law, Alan M. Levine, Gongjie Li, Chris Lintott, Jack J. Lissauer, Andrew W. Mann, Tsevi Mazeh, Rosemary Mardling, Pierre F.L. Maxted, Nora Eisner, Francesco Pepe, Joshua Pepper, Don Pollacco, Samuel N. Quinn, Elisa V. Quintana, Jason F. Rowe, George Ricker, Mark E. Rose, S. Seager, Alexandre Santerne, Damien Ségransan, Donald R. Short, Jeffrey C. Smith, Matthew R. Standing, Andrei Tokovinin, Trifon Trifonov, Oliver Turner, Joseph D. Twicken, Stéphane Udry, Roland Vanderspek, Joshua N. Winn, Eric T. Wolf, Carl Ziegler, Peter Ansorge, Frank Barnet, Joel Bergeron, Marc Huten, Giuseppe Pappa, Timo Van Der Straeten

Astrophysical Sciences

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Abstract

We report the detection of the first circumbinary planet (CBP) found by Transiting Exoplanet Survey Satellite (TESS). The target, a known eclipsing binary, was observed in sectors 1 through 12 at 30 minute cadence and in sectors 4 through 12 at 2 minute cadence. It consists of two stars with masses of 1.1 M _o&dot; and 0.3 M _o&dot; on a slightly eccentric (0.16), 14.6 day orbit, producing prominent primary eclipses and shallow secondary eclipses. The planet has a radius of ∼6.9 R _⊕ and was observed to make three transits across the primary star of roughly equal depths (∼0.2%) but different durations-a common signature of transiting CBPs. Its orbit is nearly circular (e ≈ 0.09) with an orbital period of 95.2 days. The orbital planes of the binary and the planet are aligned to within ∼1°. To obtain a complete solution for the system, we combined the TESS photometry with existing ground-based radial-velocity observations in a numerical photometric-dynamical model. The system demonstrates the discovery potential of TESS for CBPs and provides further understanding of the formation and evolution of planets orbiting close binary stars.

Original language	English (US)
Article number	253
Journal	Astronomical Journal
Volume	159
Issue number	6
DOIs	https://doi.org/10.3847/1538-3881/ab8a48
State	Published - Jun 2020

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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10.3847/1538-3881/ab8a48

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Kostov, V. B., Orosz, J. A., Feinstein, A. D., Welsh, W. F., Cukier, W., Haghighipour, N., Quarles, B., Martin, D. V., Montet, B. T., Torres, G., Triaud, A. H. M. J., Barclay, T., Boyd, P., Briceno, C., Cameron, A. C., Correia, A. C. M., Gilbert, E. A., Gill, S., Gillon, M., ... Van Der Straeten, T. (2020). TOI-1338: TESS' First Transiting Circumbinary Planet. Astronomical Journal, 159(6), Article 253. https://doi.org/10.3847/1538-3881/ab8a48

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title = "TOI-1338: TESS' First Transiting Circumbinary Planet",

abstract = "We report the detection of the first circumbinary planet (CBP) found by Transiting Exoplanet Survey Satellite (TESS). The target, a known eclipsing binary, was observed in sectors 1 through 12 at 30 minute cadence and in sectors 4 through 12 at 2 minute cadence. It consists of two stars with masses of 1.1 M o&dot; and 0.3 M o&dot; on a slightly eccentric (0.16), 14.6 day orbit, producing prominent primary eclipses and shallow secondary eclipses. The planet has a radius of ∼6.9 R ⊕ and was observed to make three transits across the primary star of roughly equal depths (∼0.2%) but different durations-a common signature of transiting CBPs. Its orbit is nearly circular (e ≈ 0.09) with an orbital period of 95.2 days. The orbital planes of the binary and the planet are aligned to within ∼1°. To obtain a complete solution for the system, we combined the TESS photometry with existing ground-based radial-velocity observations in a numerical photometric-dynamical model. The system demonstrates the discovery potential of TESS for CBPs and provides further understanding of the formation and evolution of planets orbiting close binary stars.",

author = "Kostov, {Veselin B.} and Orosz, {Jerome A.} and Feinstein, {Adina D.} and Welsh, {William F.} and Wolf Cukier and Nader Haghighipour and Billy Quarles and Martin, {David V.} and Montet, {Benjamin T.} and Guillermo Torres and Triaud, {Amaury H.M.J.} and Thomas Barclay and Patricia Boyd and Cesar Briceno and Cameron, {Andrew Collier} and Correia, {Alexandre C.M.} and Gilbert, {Emily A.} and Samuel Gill and Micha{\"e}l Gillon and Jacob Haqq-Misra and Coel Hellier and Courtney Dressing and Fabrycky, {Daniel C.} and Gabor Furesz and Jenkins, {Jon M.} and Kane, {Stephen R.} and Ravi Kopparapu and Hod{\v z}i{\'c}, {Vedad Kunovac} and Latham, {David W.} and Nicholas Law and Levine, {Alan M.} and Gongjie Li and Chris Lintott and Lissauer, {Jack J.} and Mann, {Andrew W.} and Tsevi Mazeh and Rosemary Mardling and Maxted, {Pierre F.L.} and Nora Eisner and Francesco Pepe and Joshua Pepper and Don Pollacco and Quinn, {Samuel N.} and Quintana, {Elisa V.} and Rowe, {Jason F.} and George Ricker and Rose, {Mark E.} and S. Seager and Alexandre Santerne and Damien S{\'e}gransan and Short, {Donald R.} and Smith, {Jeffrey C.} and Standing, {Matthew R.} and Andrei Tokovinin and Trifon Trifonov and Oliver Turner and Twicken, {Joseph D.} and St{\'e}phane Udry and Roland Vanderspek and Winn, {Joshua N.} and Wolf, {Eric T.} and Carl Ziegler and Peter Ansorge and Frank Barnet and Joel Bergeron and Marc Huten and Giuseppe Pappa and {Van Der Straeten}, Timo",

year = "2020",

month = jun,

doi = "10.3847/1538-3881/ab8a48",

language = "English (US)",

volume = "159",

journal = "Astronomical Journal",

issn = "0004-6256",

publisher = "IOP Publishing Ltd.",

number = "6",

}

Kostov, VB, Orosz, JA, Feinstein, AD, Welsh, WF, Cukier, W, Haghighipour, N, Quarles, B, Martin, DV, Montet, BT, Torres, G, Triaud, AHMJ, Barclay, T, Boyd, P, Briceno, C, Cameron, AC, Correia, ACM, Gilbert, EA, Gill, S, Gillon, M, Haqq-Misra, J, Hellier, C, Dressing, C, Fabrycky, DC, Furesz, G, Jenkins, JM, Kane, SR, Kopparapu, R, Hodžić, VK, Latham, DW, Law, N, Levine, AM, Li, G, Lintott, C, Lissauer, JJ, Mann, AW, Mazeh, T, Mardling, R, Maxted, PFL, Eisner, N, Pepe, F, Pepper, J, Pollacco, D, Quinn, SN, Quintana, EV, Rowe, JF, Ricker, G, Rose, ME, Seager, S, Santerne, A, Ségransan, D, Short, DR, Smith, JC, Standing, MR, Tokovinin, A, Trifonov, T, Turner, O, Twicken, JD, Udry, S, Vanderspek, R, Winn, JN, Wolf, ET, Ziegler, C, Ansorge, P, Barnet, F, Bergeron, J, Huten, M, Pappa, G & Van Der Straeten, T 2020, 'TOI-1338: TESS' First Transiting Circumbinary Planet', Astronomical Journal, vol. 159, no. 6, 253. https://doi.org/10.3847/1538-3881/ab8a48

TY - JOUR

T1 - TOI-1338

T2 - TESS' First Transiting Circumbinary Planet

AU - Kostov, Veselin B.

AU - Orosz, Jerome A.

AU - Feinstein, Adina D.

AU - Welsh, William F.

AU - Cukier, Wolf

AU - Haghighipour, Nader

AU - Quarles, Billy

AU - Martin, David V.

AU - Montet, Benjamin T.

AU - Torres, Guillermo

AU - Triaud, Amaury H.M.J.

AU - Barclay, Thomas

AU - Boyd, Patricia

AU - Briceno, Cesar

AU - Cameron, Andrew Collier

AU - Correia, Alexandre C.M.

AU - Gilbert, Emily A.

AU - Gill, Samuel

AU - Gillon, Michaël

AU - Haqq-Misra, Jacob

AU - Hellier, Coel

AU - Dressing, Courtney

AU - Fabrycky, Daniel C.

AU - Furesz, Gabor

AU - Jenkins, Jon M.

AU - Kane, Stephen R.

AU - Kopparapu, Ravi

AU - Hodžić, Vedad Kunovac

AU - Latham, David W.

AU - Law, Nicholas

AU - Levine, Alan M.

AU - Li, Gongjie

AU - Lintott, Chris

AU - Lissauer, Jack J.

AU - Mann, Andrew W.

AU - Mazeh, Tsevi

AU - Mardling, Rosemary

AU - Maxted, Pierre F.L.

AU - Eisner, Nora

AU - Pepe, Francesco

AU - Pepper, Joshua

AU - Pollacco, Don

AU - Quinn, Samuel N.

AU - Quintana, Elisa V.

AU - Rowe, Jason F.

AU - Ricker, George

AU - Rose, Mark E.

AU - Seager, S.

AU - Santerne, Alexandre

AU - Ségransan, Damien

AU - Short, Donald R.

AU - Smith, Jeffrey C.

AU - Standing, Matthew R.

AU - Tokovinin, Andrei

AU - Trifonov, Trifon

AU - Turner, Oliver

AU - Twicken, Joseph D.

AU - Udry, Stéphane

AU - Vanderspek, Roland

AU - Winn, Joshua N.

AU - Wolf, Eric T.

AU - Ziegler, Carl

AU - Ansorge, Peter

AU - Barnet, Frank

AU - Bergeron, Joel

AU - Huten, Marc

AU - Pappa, Giuseppe

AU - Van Der Straeten, Timo

PY - 2020/6

Y1 - 2020/6

N2 - We report the detection of the first circumbinary planet (CBP) found by Transiting Exoplanet Survey Satellite (TESS). The target, a known eclipsing binary, was observed in sectors 1 through 12 at 30 minute cadence and in sectors 4 through 12 at 2 minute cadence. It consists of two stars with masses of 1.1 M o&dot; and 0.3 M o&dot; on a slightly eccentric (0.16), 14.6 day orbit, producing prominent primary eclipses and shallow secondary eclipses. The planet has a radius of ∼6.9 R ⊕ and was observed to make three transits across the primary star of roughly equal depths (∼0.2%) but different durations-a common signature of transiting CBPs. Its orbit is nearly circular (e ≈ 0.09) with an orbital period of 95.2 days. The orbital planes of the binary and the planet are aligned to within ∼1°. To obtain a complete solution for the system, we combined the TESS photometry with existing ground-based radial-velocity observations in a numerical photometric-dynamical model. The system demonstrates the discovery potential of TESS for CBPs and provides further understanding of the formation and evolution of planets orbiting close binary stars.

AB - We report the detection of the first circumbinary planet (CBP) found by Transiting Exoplanet Survey Satellite (TESS). The target, a known eclipsing binary, was observed in sectors 1 through 12 at 30 minute cadence and in sectors 4 through 12 at 2 minute cadence. It consists of two stars with masses of 1.1 M o&dot; and 0.3 M o&dot; on a slightly eccentric (0.16), 14.6 day orbit, producing prominent primary eclipses and shallow secondary eclipses. The planet has a radius of ∼6.9 R ⊕ and was observed to make three transits across the primary star of roughly equal depths (∼0.2%) but different durations-a common signature of transiting CBPs. Its orbit is nearly circular (e ≈ 0.09) with an orbital period of 95.2 days. The orbital planes of the binary and the planet are aligned to within ∼1°. To obtain a complete solution for the system, we combined the TESS photometry with existing ground-based radial-velocity observations in a numerical photometric-dynamical model. The system demonstrates the discovery potential of TESS for CBPs and provides further understanding of the formation and evolution of planets orbiting close binary stars.

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UR - http://www.scopus.com/inward/citedby.url?scp=85087151238&partnerID=8YFLogxK

U2 - 10.3847/1538-3881/ab8a48

DO - 10.3847/1538-3881/ab8a48

M3 - Article

AN - SCOPUS:85087151238

SN - 0004-6256

VL - 159

JO - Astronomical Journal

JF - Astronomical Journal

IS - 6

M1 - 253

ER -

TOI-1338: TESS' First Transiting Circumbinary Planet

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