A long-period (P = 61.8 d) M5V dwarf eclipsing a Sun-like star from TESS and NGTS

Gill, Samuel and Cooke, Benjamin F. and Bayliss, Daniel and Nielsen, Louise D. and Lendl, Monika and Wheatley, Peter J. and Anderson, David R. and Moyano, Maximiliano and Bryant, Edward M. and Acton, Jack S. and Belardi, Claudia and Bouchy, Francois and Burleigh, Matthew R. and Casewell, Sarah L. and Chaushev, Alexander and Goad, Michael R. and Jackman, James A.~G. and Jenkins, James S. and McCormac, James and Günther, Maximilian N. and Osborn, Hugh P. and Pollacco, Don and Raynard, Liam and Smith, Alexis M S and Tilbrook, Rosanna H. and Turner, Oliver and Udry, Stéphane and Vines, Jose I. and Watson, Christopher A. and West, Richard G. (2020) A long-period (P = 61.8 d) M5V dwarf eclipsing a Sun-like star from TESS and NGTS. Monthly Notices of the Royal Astronomical Society, 495 (3), pp. 2713-2719. Oxford University Press. doi: 10.1093/mnras/staa1248. ISSN 0035-8711.

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Official URL: https://academic.oup.com/mnras/article/495/3/2713/5836733

Abstract

The Transiting Exoplanet Survey Satellite has produced a large number of single-transit event candidates which are being monitored by the Next Generation Transit Survey (NGTS). We observed a second epoch for the TIC-231005575 system (Tmag = 12.06 and Teff=5500±85K ) with NGTS and a third epoch with Las Cumbres Observatory's telescope in South Africa to constrain the orbital period ( P=61.777d ). Subsequent radial velocity measurements with CORALIE revealed the transiting object has a mass of M2 = 0.128 ± 0.003 M☉, indicating the system is a G-M binary. The radius of the secondary is R2 = 0.154 ± 0.008 R☉ and is consistent with MESA models of stellar evolution to better than 1σ.

Item URL in elib:

https://elib.dlr.de/137255/

Document Type:

Article

Title:

A long-period (P = 61.8 d) M5V dwarf eclipsing a Sun-like star from TESS and NGTS

Authors:

Authors	Institution or Email of Authors	Author's ORCID iD
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
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
Bayliss, Daniel	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.	Geneva Observatory, University of Geneva, Chemin des Mailettes 51, CH-1290 Versoix, Switzerland	UNSPECIFIED
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
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
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
Moyano, Maximiliano	Instituto de Astronomía, Universidad Católica del Norte, Angamos 0610, 1270709, Antofagasta, Chile	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
Acton, Jack S.	School of Physics and Astronomy, University of Leicester, Leicester LE1 7RH, UK	UNSPECIFIED
Belardi, Claudia	School of Physics and Astronomy, University of Leicester, Leicester LE1 7RH, UK	UNSPECIFIED
Bouchy, Francois	Observatoire de Genève, Université de Genève, 51 Ch. des Maillettes, CH-1290 Sauverny, Switzerland	UNSPECIFIED
Burleigh, Matthew R.	School of Physics and Astronomy, University of Leicester, Leicester LE1 7RH, UK	UNSPECIFIED
Casewell, Sarah L.	School of Physics and Astronomy, University of Leicester, 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
Goad, Michael R.	School of Physics and Astronomy, University of Leicester, Leicester LE1 7RH, UK	UNSPECIFIED
Jackman, James A.~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
Jenkins, James S.	Departamento de Astronomía, Universidad de Chile, Camino El Observatorio 1515, Las Condes, Santiago, Chile; Centro de Astrofísica y Tecnologías Afines (CATA), Casilla 36-D, Santiago, Chile	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
Günther, Maximilian N.	Department of Physics, and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology Cambridge, MA 02139, USA	UNSPECIFIED
Osborn, Hugh P.	Department of Physics, and Kavli Institute for Astrophysics and Space Research, Massachusetts Institute of Technology Cambridge, MA 02139, USA; NCCR/Planet-S and Centre for Space and Habitability, University of Bern, Bern CH-3012, Switzerland	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	School of Physics and Astronomy, University of Leicester, Leicester LE1 7RH, UK	UNSPECIFIED
Smith, Alexis M S	UNSPECIFIED	https://orcid.org/0000-0002-2386-4341
Tilbrook, Rosanna H.	School of Physics and Astronomy, University of Leicester, Leicester LE1 7RH, UK	UNSPECIFIED
Turner, Oliver	Observatoire de Genève, Université de Genève, 51 Ch. des Maillettes, CH-1290 Sauverny, Switzerland	UNSPECIFIED
Udry, Stéphane	Observatoire de Genève, Université de Genève, 51 Ch. des Maillettes, CH-1290 Sauverny, Switzerland	UNSPECIFIED
Vines, Jose I.	Departamento de Astronomía, Universidad de Chile, Camino El Observatorio 1515, Las Condes, Santiago, Chile	UNSPECIFIED
Watson, Christopher A.	Astrophysics Research Centre, School of Mathematics and Physics, Queen's University Belfast, BT7 1NN, Belfast, UK	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

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:

495

DOI:

10.1093/mnras/staa1248

Page Range:

pp. 2713-2719

Publisher:

Oxford University Press

ISSN:

0035-8711

Status:

Published

Keywords:

binaries: eclipsing, Astrophysics - Solar and Stellar Astrophysics, Astrophysics - Earth and Planetary 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 - Projekt COROT Beteiligung (old)

Location:

Berlin-Adlershof

Institutes and Institutions:

Institute of Planetary Research > Extrasolar Planets and Atmospheres

Deposited By:

Smith, Dr Alexis M S

Deposited On:

06 Nov 2020 11:51

Last Modified:

06 Nov 2020 11:51

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