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:

Authors	Institution or Email of Authors	Author's ORCID iD
Lendl, Monika	Observatoire 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, Austria	UNSPECIFIED
Bouchy, François	Observatoire de Genève, Université de Genève, 51 Ch. des Maillettes, CH-1290 Sauverny, Switzerland	UNSPECIFIED
Gill, Samuel	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, UK	UNSPECIFIED
Nielsen, Louise D.	Observatoire Astronomique de l'Université de Genève, 51 Ch. des Maillettes, CH-1290 Versoix, Switzerland	UNSPECIFIED
Turner, Oliver	Observatoire de Genève, Université de Genève, 51 Ch. des Maillettes, CH-1290 Sauverny, Switzerland	UNSPECIFIED
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 0000-0002-3481-9052	UNSPECIFIED
Acton, Jack S.	Department of Physics and Astronomy, University of Leicester, University Road, Leicester LE1 7RH, UK	UNSPECIFIED
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, UK	UNSPECIFIED
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, UK	https://orcid.org/0000-0002-5080-4117
Bayliss, Daniel	Department of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UK	UNSPECIFIED
Belardi, Claudia	Department of Physics and Astronomy, University of Leicester , University Road, Leicester LE1 7RH, UK	UNSPECIFIED
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, UK	UNSPECIFIED
Burleigh, Matthew R.	Department of Physics and Astronomy, University of Leicester, University Road, Leicester LE1 7RH, UK	UNSPECIFIED
Chaushev, Alexander	Center for Astronomy and Astrophysics, TU Berlin, Hardenbergstr. 36, 10623 Berlin, GermanyCenter for Astronomy and Astrophysics, TU Berlin, Germany	UNSPECIFIED
Casewell, Sarah L.	Department of Physics and Astronomy, University of Leicester, University Road, Leicester LE1 7RH, UK	UNSPECIFIED
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, UK	UNSPECIFIED
Eigmüller, Philipp	Philipp.Eigmueller (at) dlr.de	https://orcid.org/0000-0003-4096-0594
Gillen, Edward	Astrophysics Group, Cavendish Laboratory , J.J. Thomson Avenue, Cambridge CB3 0HE, UK	UNSPECIFIED
Goad, Michael R.	Department of Physics and Astronomy, University of Leicester, University Road, Leicester LE1 7RH, UK	UNSPECIFIED
Günther, Maximilian N.	Department of Physics, and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA	UNSPECIFIED
Hagelberg, Janis	Observatoire de Genève, Université de Genève, 51 Ch. des Maillettes, CH-1290 Sauverny, Switzerland	UNSPECIFIED
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, Chile	UNSPECIFIED
Louden, Tom	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, UK	UNSPECIFIED
Marmier, Maxime	Observatoire de Genève, Université de Genève, 51 Ch. des Maillettes, CH-1290 Sauverny, Switzerland	UNSPECIFIED
McCormac, James	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, UK	UNSPECIFIED
Moyano, Maximiliano	Instituto de Astronomía, Universidad Católica del Norte, Angamos 0610, 1270709 Antofagasta, Chile	UNSPECIFIED
Pollacco, Don	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, UK	UNSPECIFIED
Raynard, Liam	Department of Physics and Astronomy, University of Leicester, University Road, Leicester LE1 7RH, UK	https://orcid.org/0000-0001-6472-9122
Tilbrook, Rosanna H.	Department of Physics and Astronomy, University of Leicester, University Road, Leicester LE1 7RH, UK	UNSPECIFIED
Udry, Stephane	Observatoire Astronomique de l'Université de Genève, 51 Ch. des Maillettes, CH-1290 Versoix, Switzerland	UNSPECIFIED
Vines, Jose I.	Departamento de Astronomía, Universidad de Chile, Casilla 36-D, Santiago, Chile	UNSPECIFIED
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, UK	UNSPECIFIED
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, UK	UNSPECIFIED
Ricker, George	Department of Physics, and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA	UNSPECIFIED
Vanderspek, Roland	Department of Physics, and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA	UNSPECIFIED
Latham, David W.	Center for Astrophysics, Harvard & Smithsonian, 60 Garden St, Cambridge, MA 02138, USA	UNSPECIFIED
Seager, Sara	Department 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, MA	UNSPECIFIED
Winn, Joshua N.	Department of Astrophysical Sciences, Princeton University, 4 Ivy Lane, Princeton, NJ 08544, USA	UNSPECIFIED
Jenkins, Jon M.	NASA Ames Research Center, Moffett Field, CA 94035, USA	UNSPECIFIED
Addison, Brett	University of Southern Queensland, Centre for Astrophysics, West Street, Toowoomba, QLD 4350 Australia	UNSPECIFIED
Briceño, César	Cerro Tololo Inter-American Observatory, Casilla 603, La Serena, Chile	UNSPECIFIED
Brahm, Rafael	Center of Astro-Engineering UC, Pontificia Universidad Católica de Chile, Av. Vicuña Mackenna 4860, 7820436 Macul, Santiago, Chile; Millennium Institute for Astrophysics, Santiago,Chile	UNSPECIFIED
Caldwell, Douglas A.	NASA Ames Research Center, Moffett Field, CA 94035, USA; SETI Institute, 189 Bernardo Ave., Suite 200, Mountain View, CA 94043, USA	UNSPECIFIED
Doty, John	Noqsi Aerospace Ltd., 15 Blanchard Avenue, Billerica, MA, 01821, USA	UNSPECIFIED
Espinoza, Néstor	Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA; Max-Planck-Institut für Astronomie, Königstuhl 17, D-69117 Heidelberg, Germany	UNSPECIFIED
Goeke, Bob	Department of Physics, and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA	UNSPECIFIED
Henning, Thomas	Max-Planck Institut für Astronomie, Heidelberg, Germany.	UNSPECIFIED
Jordán, Andrés	Millennium Institute for Astrophysics, Santiago,Chile; Facultad de Ingeniería y Ciencias, Universidad Adolfo Ibáñez, Av. Diagonal las Torres 2640, Peñalolén, Santiago, Chile	UNSPECIFIED
Krishnamurthy, Akshata	Department of Physics, and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA	UNSPECIFIED
Law, Nicholas	Department of Physics and Astronomy, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-3255, USA	UNSPECIFIED
Morris, Robert	NASA Ames Research Center, Moffett Field, CA 94035, USA; SETI Institute, 189 Bernardo Ave., Suite 200, Mountain View, CA 94043, USA	UNSPECIFIED
Okumura, Jack	University of Southern Queensland, Centre for Astrophysics, West Street, Toowoomba, QLD 4350 Australia	UNSPECIFIED
Mann, Andrew W.	Department of Physics and Astronomy, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599-3255, USA	UNSPECIFIED
Rodriguez, Joseph E.	Center for Astrophysics, Harvard & Smithsonian, 60 Garden St, Cambridge, MA 02138, USA	UNSPECIFIED
Sarkis, Paula	Max-Planck-Institut für Astronomie, Königstuhl 17, D-69117 Heidelberg, Germany	UNSPECIFIED
Schlieder, Joshua	NASA Goddard Space Flight Center, 8800 Greenbelt Road, MD, USA	UNSPECIFIED
Twicken, Joseph D.	NASA Ames Research Center, Moffett Field, CA 94035, USA; SETI Institute, 189 Bernardo Ave., Suite 200, Mountain View, CA 94043, USA	UNSPECIFIED
Villanueva, Steven	Department of Physics, and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology, Cambridge, MA 02139, USA	UNSPECIFIED
Wittenmyer, Robert A.	University of Southern Queensland, Centre for Astrophysics, West Street, Toowoomba, QLD 4350 Australia	UNSPECIFIED
Wright, Duncan J.	University of Southern Queensland, Centre for Astrophysics, West Street, Toowoomba, QLD 4350 Australia	UNSPECIFIED
Ziegler, Carl	Dunlap Institute for Astronomy and Astrophysics, University of Toronto, 50 St George Street, Toronto, ON M5S 3H4, Canada	UNSPECIFIED

Date:

2020

Journal or Publication Title:

Monthly Notices of the Royal Astronomical Society

Refereed publication:

Yes

Open Access:

Yes

Gold Open Access:

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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