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

Lendl, Monika and Bouchy, François and Gill, Samuel and Nielsen, Louise D. and Turner, Oliver and Stassun, Keivan G. and Acton, Jack S. and Anderson, David R. and Armstrong, David J. and Bayliss, Daniel and Belardi, Claudia and Bryant, Edward M. and Burleigh, Matthew R. and Chaushev, Alexander and Casewell, Sarah L. and Cooke, Benjamin F. and Eigmüller, Philipp and Gillen, Edward and Goad, Michael R. and Günther, Maximilian N. and Hagelberg, Janis and Jenkins, James S. and Louden, Tom and Marmier, Maxime and McCormac, James and Moyano, Maximiliano and Pollacco, Don and Raynard, Liam and Tilbrook, Rosanna H. and Udry, Stephane and Vines, Jose I. and West, Richard G. and Wheatley, Peter J. and Ricker, George and Vanderspek, Roland and Latham, David W. and Seager, Sara and Winn, Joshua N. and Jenkins, Jon M. and Addison, Brett and Briceño, César and Brahm, Rafael and Caldwell, Douglas A. and Doty, John and Espinoza, Néstor and Goeke, Bob and Henning, Thomas and Jordán, Andrés and Krishnamurthy, Akshata and Law, Nicholas and Morris, Robert and Okumura, Jack and Mann, Andrew W. and Rodriguez, Joseph E. and Sarkis, Paula and Schlieder, Joshua and Twicken, Joseph D. and Villanueva, Steven and Wittenmyer, Robert A. and Wright, Duncan J. and Ziegler, Carl (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), pp. 1761-1769. Oxford University Press. doi: 10.1093/mnras/stz3545. ISSN 0035-8711.

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Official URL: https://academic.oup.com/mnras/article/492/2/1761/5685968

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_{-0.10}^{+0.39} 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.

Item URL in elib:https://elib.dlr.de/136674/
Document Type:Article
Title:TOI-222: a single-transit TESS candidate revealed to be a 34-d eclipsing binary with CORALIE, EulerCam, and NGTS
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Lendl, MonikaObservatoire de Genève, Université de Genève, 51 Ch. des Maillettes, CH-1290 Sauverny, Switzerland; Space Research Institute, Austrian Academy of Sciences, Schmiedlstr 6, A-8042 Graz, AustriaUNSPECIFIED
Bouchy, FrançoisObservatoire de Genève, Université de Genève, 51 Ch. des Maillettes, CH-1290 Sauverny, SwitzerlandUNSPECIFIED
Gill, SamuelDepartment of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK; Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UKUNSPECIFIED
Nielsen, Louise D.Observatoire Astronomique de l'Université de Genève, 51 Ch. des Maillettes, CH-1290 Versoix, SwitzerlandUNSPECIFIED
Turner, OliverObservatoire de Genève, Université de Genève, 51 Ch. des Maillettes, CH-1290 Sauverny, SwitzerlandUNSPECIFIED
Stassun, Keivan G.Vanderbilt University, Department of Physics & Astronomy, 6301 Stevenson Center Lane, Nashville, TN 37235, US ; Fisk University, Department of Physics, 1000 17th Avenue North, Nashville, TN 37208, US 0000-0002-3481-9052UNSPECIFIED
Acton, Jack S.Department of Physics and Astronomy, University of Leicester, University Road, Leicester LE1 7RH, UKUNSPECIFIED
Anderson, David R.Department of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK; Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UKUNSPECIFIED
Armstrong, David J.Department of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UKhttps://orcid.org/0000-0002-5080-4117
Bayliss, DanielDepartment of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UKUNSPECIFIED
Belardi, ClaudiaDepartment of Physics and Astronomy, University of Leicester , University Road, Leicester LE1 7RH, UKUNSPECIFIED
Bryant, Edward M.Department of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK; Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UKUNSPECIFIED
Burleigh, Matthew R.Department of Physics and Astronomy, University of Leicester, University Road, Leicester LE1 7RH, UKUNSPECIFIED
Chaushev, AlexanderCenter for Astronomy and Astrophysics, TU Berlin, Hardenbergstr. 36, 10623 Berlin, GermanyCenter for Astronomy and Astrophysics, TU Berlin, GermanyUNSPECIFIED
Casewell, Sarah L.Department of Physics and Astronomy, University of Leicester, University Road, Leicester LE1 7RH, UKUNSPECIFIED
Cooke, Benjamin F.Department of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK; Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UKUNSPECIFIED
Eigmüller, PhilippPhilipp.Eigmueller (at) dlr.dehttps://orcid.org/0000-0003-4096-0594
Gillen, EdwardAstrophysics Group, Cavendish Laboratory , J.J. Thomson Avenue, Cambridge CB3 0HE, UKUNSPECIFIED
Goad, Michael R.Department of Physics and Astronomy, University of Leicester, University Road, Leicester LE1 7RH, UKUNSPECIFIED
Günther, Maximilian N.Department of Physics, and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USAUNSPECIFIED
Hagelberg, JanisObservatoire de Genève, Université de Genève, 51 Ch. des Maillettes, CH-1290 Sauverny, SwitzerlandUNSPECIFIED
Jenkins, James S.Departamento de Astronomía, Universidad de Chile, Casilla 36-D, Santiago, Chile; Centro de Astrofísica y Tecnologías Afines (CATA), Casilla 36-D, Santiago, ChileUNSPECIFIED
Louden, TomDepartment of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK; Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UKUNSPECIFIED
Marmier, MaximeObservatoire de Genève, Université de Genève, 51 Ch. des Maillettes, CH-1290 Sauverny, SwitzerlandUNSPECIFIED
McCormac, JamesDepartment of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK; Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UKUNSPECIFIED
Moyano, MaximilianoInstituto de Astronomía, Universidad Católica del Norte, Angamos 0610, 1270709 Antofagasta, ChileUNSPECIFIED
Pollacco, DonDepartment of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK; Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UKUNSPECIFIED
Raynard, LiamDepartment of Physics and Astronomy, University of Leicester, University Road, Leicester LE1 7RH, UKhttps://orcid.org/0000-0001-6472-9122
Tilbrook, Rosanna H.Department of Physics and Astronomy, University of Leicester, University Road, Leicester LE1 7RH, UKUNSPECIFIED
Udry, StephaneObservatoire Astronomique de l'Université de Genève, 51 Ch. des Maillettes, CH-1290 Versoix, SwitzerlandUNSPECIFIED
Vines, Jose I.Departamento de Astronomía, Universidad de Chile, Casilla 36-D, Santiago, ChileUNSPECIFIED
West, Richard G.Department of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK; Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UKUNSPECIFIED
Wheatley, Peter J.Department of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK; Centre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UKUNSPECIFIED
Ricker, GeorgeDepartment of Physics, and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USAUNSPECIFIED
Vanderspek, RolandDepartment of Physics, and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USAUNSPECIFIED
Latham, David W.Center for Astrophysics, Harvard & Smithsonian, 60 Garden St, Cambridge, MA 02138, USAUNSPECIFIED
Seager, SaraDepartment of Physics, and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA; Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MAUNSPECIFIED
Winn, Joshua N.Department of Astrophysical Sciences, Princeton University, 4 Ivy Lane, Princeton, NJ 08544, USAUNSPECIFIED
Jenkins, Jon M.NASA Ames Research Center, Moffett Field, CA 94035, USAUNSPECIFIED
Addison, BrettUniversity of Southern Queensland, Centre for Astrophysics, West Street, Toowoomba, QLD 4350 AustraliaUNSPECIFIED
Briceño, CésarCerro Tololo Inter-American Observatory, Casilla 603, La Serena, ChileUNSPECIFIED
Brahm, RafaelCenter of Astro-Engineering UC, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, 7820436 Macul, Santiago, Chile; Millennium Institute for Astrophysics, Santiago,ChileUNSPECIFIED
Caldwell, Douglas A.NASA Ames Research Center, Moffett Field, CA 94035, USA; SETI Institute, 189 Bernardo Ave., Suite 200, Mountain View, CA 94043, USAUNSPECIFIED
Doty, JohnNoqsi Aerospace Ltd., 15 Blanchard Avenue, Billerica, MA, 01821, USAUNSPECIFIED
Espinoza, NéstorSpace Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA; Max-Planck-Institut für Astronomie, Königstuhl 17, D-69117 Heidelberg, GermanyUNSPECIFIED
Goeke, BobDepartment of Physics, and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USAUNSPECIFIED
Henning, ThomasMax-Planck Institut für Astronomie, Heidelberg, Germany.UNSPECIFIED
Jordán, AndrésMillennium Institute for Astrophysics, Santiago,Chile; Facultad de Ingeniería y Ciencias, Universidad Adolfo Ibáñez, Av. Diagonal las Torres 2640, Peñalolén, Santiago, ChileUNSPECIFIED
Krishnamurthy, AkshataDepartment of Physics, and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USAUNSPECIFIED
Law, NicholasDepartment of Physics and Astronomy, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-3255, USAUNSPECIFIED
Morris, RobertNASA Ames Research Center, Moffett Field, CA 94035, USA; SETI Institute, 189 Bernardo Ave., Suite 200, Mountain View, CA 94043, USAUNSPECIFIED
Okumura, JackUniversity of Southern Queensland, Centre for Astrophysics, West Street, Toowoomba, QLD 4350 AustraliaUNSPECIFIED
Mann, Andrew W.Department of Physics and Astronomy, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-3255, USAUNSPECIFIED
Rodriguez, Joseph E.Center for Astrophysics, Harvard & Smithsonian, 60 Garden St, Cambridge, MA 02138, USAUNSPECIFIED
Sarkis, PaulaMax-Planck-Institut für Astronomie, Königstuhl 17, D-69117 Heidelberg, GermanyUNSPECIFIED
Schlieder, JoshuaNASA Goddard Space Flight Center, 8800 Greenbelt Road, MD, USAUNSPECIFIED
Twicken, Joseph D.NASA Ames Research Center, Moffett Field, CA 94035, USA; SETI Institute, 189 Bernardo Ave., Suite 200, Mountain View, CA 94043, USAUNSPECIFIED
Villanueva, StevenDepartment of Physics, and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USAUNSPECIFIED
Wittenmyer, Robert A.University of Southern Queensland, Centre for Astrophysics, West Street, Toowoomba, QLD 4350 AustraliaUNSPECIFIED
Wright, Duncan J.University of Southern Queensland, Centre for Astrophysics, West Street, Toowoomba, QLD 4350 AustraliaUNSPECIFIED
Ziegler, CarlDunlap Institute for Astronomy and Astrophysics, University of Toronto, 50 St George Street, Toronto, ON M5S 3H4, CanadaUNSPECIFIED
Date:2020
Journal or Publication Title:Monthly Notices of the Royal Astronomical Society
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:492
DOI :10.1093/mnras/stz3545
Page Range:pp. 1761-1769
Publisher:Oxford University Press
ISSN:0035-8711
Status:Published
Keywords:techniques: photometric, stars: individual: TOI-222, planetary systems, Astrophysics - Earth and Planetary Astrophysics, Astrophysics - Solar and Stellar Astrophysics
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Space Exploration
DLR - Research theme (Project):R - Project PLATO (old)
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Extrasolar Planets and Atmospheres
Deposited By: Eigmüller, Dr. Philipp
Deposited On:04 Nov 2020 08:39
Last Modified:04 Nov 2020 08:39

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