TOI-222: A single-transit TESS candidate revealed to be a 34-d eclipsing binary with CORALIE, EulerCam, and NGTS

Monika Lendl; François Bouchy; Samuel Gill; Louise D. Nielsen; Oliver Turner; Keivan Stassun; Jack S. Acton; David R. Anderson; David J. Armstrong; Daniel Bayliss; Claudia Belardi; Edward M. Bryant; Matthew R. Burleigh; Alexander Chaushev; Sarah L. Casewell; Benjamin F. Cooke; Philipp Eigmüller; Edward Gillen; Michael R. Goad; Maximilian N. Günther; Janis Hagelberg; James S. Jenkins; Tom Louden; Maxime Marmier; James McCormac; Maximiliano Moyano; Don Pollacco; Liam Raynard; Rosanna H. Tilbrook; Stéphane Udry; Jose I. Vines; Richard G. West; Peter J. Wheatley; George Ricker; Roland Vanderspek; David W. Latham; Sara Seager; Josh Winn; Jon M. Jenkins; Brett Addison; César Briceño; Rafael Brahm; Douglas A. Caldwell; John Doty; Néstor Espinoza; Bob Goeke; Thomas Henning; Andrés Jordán; Akshata Krishnamurthy; Nicholas Law; Robert Morris; Jack Okumura; Andrew W. Mann; Joseph E. Rodriguez; Paula Sarkis; Joshua Schlieder; Joseph D. Twicken; Steven Villanueva; Robert A. Wittenmyer; Duncan J. Wright; Carl Ziegler

doi:10.1093/mnras/stz3545

TOI-222: A single-transit TESS candidate revealed to be a 34-d eclipsing binary with CORALIE, EulerCam, and NGTS

Monika Lendl, François Bouchy, Samuel Gill, Louise D. Nielsen, Oliver Turner, Keivan Stassun, Jack S. Acton, David R. Anderson, David J. Armstrong, Daniel Bayliss, Claudia Belardi, Edward M. Bryant, Matthew R. Burleigh, Alexander Chaushev, Sarah L. Casewell, Benjamin F. Cooke, Philipp Eigmüller, Edward Gillen, Michael R. Goad, Maximilian N. GüntherJanis Hagelberg, James S. Jenkins, Tom Louden, Maxime Marmier, James McCormac, Maximiliano Moyano, Don Pollacco, Liam Raynard, Rosanna H. Tilbrook, Stéphane Udry, Jose I. Vines, Richard G. West, Peter J. Wheatley, George Ricker, Roland Vanderspek, David W. Latham, Sara Seager, Josh Winn, Jon M. Jenkins, Brett Addison, César Briceño, Rafael Brahm, Douglas A. Caldwell, John Doty, Néstor Espinoza, Bob Goeke, Thomas Henning, Andrés Jordán, Akshata Krishnamurthy, Nicholas Law, Robert Morris, Jack Okumura, Andrew W. Mann, Joseph E. Rodriguez, Paula Sarkis, Joshua Schlieder, Joseph D. Twicken, Steven Villanueva, Robert A. Wittenmyer, Duncan J. Wright, Carl Ziegler

Astrophysical Sciences

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Abstract

We report the period, eccentricity, and mass determination for the Transiting Exoplanet Survey Satellite (TESS) single-transit event candidate TOI-222, which displayed a single 3000 ppm transit in the TESS 2-min cadence data from Sector 2. We determine the orbital period via radial velocity measurements (P = 33.9 d), which allowed for ground-based photometric detection of two subsequent transits. Our data show that the companion to TOI-222 is a low-mass star, with a radius of 0.18⁺₋⁰₀³⁹₁₀ R_☉ and a mass of 0.23 ± 0.01 M_☉. This discovery showcases the ability to efficiently discover long-period systems from TESS single-transit events using a combination of radial velocity monitoring coupled with high-precision ground-based photometry.

Original language	English (US)
Pages (from-to)	1761-1769
Number of pages	9
Journal	Monthly Notices of the Royal Astronomical Society
Volume	492
Issue number	2
DOIs	https://doi.org/10.1093/mnras/stz3545
State	Published - Feb 1 2020

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

Keywords

Planetary systems
Stars: individual: TOI-222
Techniques: photometric

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10.1093/mnras/stz3545

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Lendl, M., Bouchy, F., Gill, S., Nielsen, L. D., Turner, O., Stassun, K., Acton, J. S., Anderson, D. R., Armstrong, D. J., Bayliss, D., Belardi, C., Bryant, E. M., Burleigh, M. R., Chaushev, A., Casewell, S. L., Cooke, B. F., Eigmüller, P., Gillen, E., Goad, M. R., ... Ziegler, C. (2020). TOI-222: A single-transit TESS candidate revealed to be a 34-d eclipsing binary with CORALIE, EulerCam, and NGTS. Monthly Notices of the Royal Astronomical Society, 492(2), 1761-1769. https://doi.org/10.1093/mnras/stz3545

@article{2045ac2a7e7a46d0bcb67b7915b27077,

title = "TOI-222: A single-transit TESS candidate revealed to be a 34-d eclipsing binary with CORALIE, EulerCam, and NGTS",

abstract = "We report the period, eccentricity, and mass determination for the Transiting Exoplanet Survey Satellite (TESS) single-transit event candidate TOI-222, which displayed a single 3000 ppm transit in the TESS 2-min cadence data from Sector 2. We determine the orbital period via radial velocity measurements (P = 33.9 d), which allowed for ground-based photometric detection of two subsequent transits. Our data show that the companion to TOI-222 is a low-mass star, with a radius of 0.18+−003910 R☉ and a mass of 0.23 ± 0.01 M☉. This discovery showcases the ability to efficiently discover long-period systems from TESS single-transit events using a combination of radial velocity monitoring coupled with high-precision ground-based photometry.",

keywords = "Planetary systems, Stars: individual: TOI-222, Techniques: photometric",

author = "Monika Lendl and Fran{\c c}ois Bouchy and Samuel Gill and Nielsen, {Louise D.} and Oliver Turner and Keivan Stassun and Acton, {Jack S.} and Anderson, {David R.} and Armstrong, {David J.} and Daniel Bayliss and Claudia Belardi and Bryant, {Edward M.} and Burleigh, {Matthew R.} and Alexander Chaushev and Casewell, {Sarah L.} and Cooke, {Benjamin F.} and Philipp Eigm{\"u}ller and Edward Gillen and Goad, {Michael R.} and G{\"u}nther, {Maximilian N.} and Janis Hagelberg and Jenkins, {James S.} and Tom Louden and Maxime Marmier and James McCormac and Maximiliano Moyano and Don Pollacco and Liam Raynard and Tilbrook, {Rosanna H.} and St{\'e}phane Udry and Vines, {Jose I.} and West, {Richard G.} and Wheatley, {Peter J.} and George Ricker and Roland Vanderspek and Latham, {David W.} and Sara Seager and Josh Winn and Jenkins, {Jon M.} and Brett Addison and C{\'e}sar Brice{\~n}o and Rafael Brahm and Caldwell, {Douglas A.} and John Doty and N{\'e}stor Espinoza and Bob Goeke and Thomas Henning and Andr{\'e}s Jord{\'a}n and Akshata Krishnamurthy and Nicholas Law and Robert Morris and Jack Okumura and Mann, {Andrew W.} and Rodriguez, {Joseph E.} and Paula Sarkis and Joshua Schlieder and Twicken, {Joseph D.} and Steven Villanueva and Wittenmyer, {Robert A.} and Wright, {Duncan J.} and Carl Ziegler",

note = "Publisher Copyright: {\textcopyright} 2019 The Author(s)",

year = "2020",

month = feb,

day = "1",

doi = "10.1093/mnras/stz3545",

language = "English (US)",

volume = "492",

pages = "1761--1769",

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

issn = "0035-8711",

publisher = "Oxford University Press",

number = "2",

}

Lendl, M, Bouchy, F, Gill, S, Nielsen, LD, Turner, O, Stassun, K, Acton, JS, Anderson, DR, Armstrong, DJ, Bayliss, D, Belardi, C, Bryant, EM, Burleigh, MR, Chaushev, A, Casewell, SL, Cooke, BF, Eigmüller, P, Gillen, E, Goad, MR, Günther, MN, Hagelberg, J, Jenkins, JS, Louden, T, Marmier, M, McCormac, J, Moyano, M, Pollacco, D, Raynard, L, Tilbrook, RH, Udry, S, Vines, JI, West, RG, Wheatley, PJ, Ricker, G, Vanderspek, R, Latham, DW, Seager, S, Winn, J, Jenkins, JM, Addison, B, Briceño, C, Brahm, R, Caldwell, DA, Doty, J, Espinoza, N, Goeke, B, Henning, T, Jordán, A, Krishnamurthy, A, Law, N, Morris, R, Okumura, J, Mann, AW, Rodriguez, JE, Sarkis, P, Schlieder, J, Twicken, JD, Villanueva, S, Wittenmyer, RA, Wright, DJ & Ziegler, C 2020, 'TOI-222: A single-transit TESS candidate revealed to be a 34-d eclipsing binary with CORALIE, EulerCam, and NGTS', Monthly Notices of the Royal Astronomical Society, vol. 492, no. 2, pp. 1761-1769. https://doi.org/10.1093/mnras/stz3545

TY - JOUR

T1 - TOI-222

T2 - A single-transit TESS candidate revealed to be a 34-d eclipsing binary with CORALIE, EulerCam, and NGTS

AU - Lendl, Monika

AU - Bouchy, François

AU - Gill, Samuel

AU - Nielsen, Louise D.

AU - Turner, Oliver

AU - Stassun, Keivan

AU - Acton, Jack S.

AU - Anderson, David R.

AU - Armstrong, David J.

AU - Bayliss, Daniel

AU - Belardi, Claudia

AU - Bryant, Edward M.

AU - Burleigh, Matthew R.

AU - Chaushev, Alexander

AU - Casewell, Sarah L.

AU - Cooke, Benjamin F.

AU - Eigmüller, Philipp

AU - Gillen, Edward

AU - Goad, Michael R.

AU - Günther, Maximilian N.

AU - Hagelberg, Janis

AU - Jenkins, James S.

AU - Louden, Tom

AU - Marmier, Maxime

AU - McCormac, James

AU - Moyano, Maximiliano

AU - Pollacco, Don

AU - Raynard, Liam

AU - Tilbrook, Rosanna H.

AU - Udry, Stéphane

AU - Vines, Jose I.

AU - West, Richard G.

AU - Wheatley, Peter J.

AU - Ricker, George

AU - Vanderspek, Roland

AU - Latham, David W.

AU - Seager, Sara

AU - Winn, Josh

AU - Jenkins, Jon M.

AU - Addison, Brett

AU - Briceño, César

AU - Brahm, Rafael

AU - Caldwell, Douglas A.

AU - Doty, John

AU - Espinoza, Néstor

AU - Goeke, Bob

AU - Henning, Thomas

AU - Jordán, Andrés

AU - Krishnamurthy, Akshata

AU - Law, Nicholas

AU - Morris, Robert

AU - Okumura, Jack

AU - Mann, Andrew W.

AU - Rodriguez, Joseph E.

AU - Sarkis, Paula

AU - Schlieder, Joshua

AU - Twicken, Joseph D.

AU - Villanueva, Steven

AU - Wittenmyer, Robert A.

AU - Wright, Duncan J.

AU - Ziegler, Carl

PY - 2020/2/1

Y1 - 2020/2/1

N2 - We report the period, eccentricity, and mass determination for the Transiting Exoplanet Survey Satellite (TESS) single-transit event candidate TOI-222, which displayed a single 3000 ppm transit in the TESS 2-min cadence data from Sector 2. We determine the orbital period via radial velocity measurements (P = 33.9 d), which allowed for ground-based photometric detection of two subsequent transits. Our data show that the companion to TOI-222 is a low-mass star, with a radius of 0.18+−003910 R☉ and a mass of 0.23 ± 0.01 M☉. This discovery showcases the ability to efficiently discover long-period systems from TESS single-transit events using a combination of radial velocity monitoring coupled with high-precision ground-based photometry.

AB - We report the period, eccentricity, and mass determination for the Transiting Exoplanet Survey Satellite (TESS) single-transit event candidate TOI-222, which displayed a single 3000 ppm transit in the TESS 2-min cadence data from Sector 2. We determine the orbital period via radial velocity measurements (P = 33.9 d), which allowed for ground-based photometric detection of two subsequent transits. Our data show that the companion to TOI-222 is a low-mass star, with a radius of 0.18+−003910 R☉ and a mass of 0.23 ± 0.01 M☉. This discovery showcases the ability to efficiently discover long-period systems from TESS single-transit events using a combination of radial velocity monitoring coupled with high-precision ground-based photometry.

KW - Planetary systems

KW - Stars: individual: TOI-222

KW - Techniques: photometric

UR - http://www.scopus.com/inward/record.url?scp=85082719912&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85082719912&partnerID=8YFLogxK

U2 - 10.1093/mnras/stz3545

DO - 10.1093/mnras/stz3545

M3 - Article

AN - SCOPUS:85082719912

SN - 0035-8711

VL - 492

SP - 1761

EP - 1769

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 2

ER -

TOI-222: A single-transit TESS candidate revealed to be a 34-d eclipsing binary with CORALIE, EulerCam, and NGTS

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All Science Journal Classification (ASJC) codes

Keywords

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