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NGTS-6b: an ultrashort period hot-Jupiter orbiting an old K dwarf

Vines, Jose I. and Jenkins, James S. and Acton, Jack S. and Briegal, Joshua and Bayliss, Daniel and Bouchy, Fran\cois and Belardi, Claudia and Bryant, Edward M. and Burleigh, Matthew R. and Cabrera Perez, Juan and Casewell, Sarah L. and Chaushev, Alexander and Cooke, Benjamin F. and Csizmadia, Szilard and Eigmüller, Philipp and Erikson, Anders and Foxell, Emma and Gill, Samuel and Gillen, Edward and Goad, Michael R. and Jackman, James A.~G. and King, George W. and Louden, Tom and McCormac, James and Moyano, Maximiliano and Nielsen, Louise D. and Pollacco, Don and Queloz, Didier and Rauer, Heike and Raynard, Liam and Smith, Alexis and Soto, Maritza G. and Tilbrook, Rosanna H. and Titz-Weider, Ruth and Turner, Oliver and Udry, Stéphane and Walker, Simon R. and Watson, Christopher A. and West, Richard G. and Wheatley, Peter J. (2019) NGTS-6b: an ultrashort period hot-Jupiter orbiting an old K dwarf. Monthly Notices of the Royal Astronomical Society, 489 (3), pp. 4125-4134. Oxford University Press. DOI: 10.1093/mnras/stz2349 ISSN 0035-8711

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Abstract

We report the discovery of a new ultrashort period hot Jupiter from the Next Generation Transit Survey. NGTS-6b orbits its star with a period of 21.17 h, and has a mass and radius of 1.330^{+0.024}_{-0.028}MJ and 1.271^{+0.197}_{-0.188}RJ, respectively, returning a planetary bulk density of 0.711^{+0.214}_{-0.136} g cm-3. Conforming to the currently known small population of ultrashort period hot Jupiters, the planet appears to orbit a metal-rich star ([Fe/H] = +0.11 ± 0.09 dex). Photoevaporation models suggest the planet should have lost 5 per cent of its gaseous atmosphere over the course of the 9.6 Gyr of evolution of the system. NGTS-6b adds to the small, but growing list of ultrashort period gas giant planets, and will help us to understand the dominant formation and evolutionary mechanisms that govern this population.

Item URL in elib:https://elib.dlr.de/131545/
Document Type:Article
Title:NGTS-6b: an ultrashort period hot-Jupiter orbiting an old K dwarf
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Vines, Jose I.Departamento de Astronomía, Universidad de Chile, Casilla 36-D, 7591245, Santiago, ChileUNSPECIFIED
Jenkins, James S.Departamento de Astronomía, Universidad de Chile, Casilla 36-D, 7591245, Santiago, Chile; Centro de Astrofísica y Tecnologías Afines (CATA), Casilla 36-D, 7591245, Santiago, ChileUNSPECIFIED
Acton, Jack S.Department of Physics and Astronomy, University of Leicester, University Road, Leicester LE1 7RH, UKUNSPECIFIED
Briegal, JoshuaAstrophysics Group, Cavendish Laboratory, J.J. Thomson Avenue, Cambridge CB3 0HE, UKUNSPECIFIED
Bayliss, DanielDepartment of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UKUNSPECIFIED
Bouchy, Fran\coisObservatoire de Genève, Université de Genève, 51 Ch. des Maillettes, CH-1290 Sauverny, SwitzerlandUNSPECIFIED
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
Cabrera Perez, JuanJuan.Cabrera (at) dlr.dehttps://orcid.org/0000-0001-6653-5487
Casewell, Sarah L.Department of Physics and Astronomy, University of Leicester, University Road, Leicester LE1 7RH, UKUNSPECIFIED
Chaushev, AlexanderCenter for Astronomy and Astrophysics, TU Berlin, Hardenbergstr. 36, D-10623 Berlin, GermanyUNSPECIFIED
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
Csizmadia, Szilardszilard.csizmadia (at) dlr.deUNSPECIFIED
Eigmüller, PhilippPhilipp.Eigmueller (at) dlr.dehttps://orcid.org/0000-0003-4096-0594
Erikson, Andersanders.erikson (at) dlr.deUNSPECIFIED
Foxell, EmmaDepartment of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UKUNSPECIFIED
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
Gillen, EdwardCentre for Exoplanets and Habitability, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UKUNSPECIFIED
Goad, Michael R.Department of Physics and Astronomy, University of Leicester, University Road, Leicester LE1 7RH, UKUNSPECIFIED
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, UKUNSPECIFIED
King, George W.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
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
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
Nielsen, Louise D.Observatoire de Genève, Université de Genève, 51 Ch. des Maillettes, CH-1290 Sauverny, SwitzerlandUNSPECIFIED
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
Queloz, DidierAstrophysics Research Centre, School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN, UKUNSPECIFIED
Rauer, Heikeheike.rauer (at) dlr.deUNSPECIFIED
Raynard, LiamDepartment of Physics and Astronomy, University of Leicester, University Road, Leicester LE1 7RH, UKUNSPECIFIED
Smith, AlexisAlexis.Smith (at) dlr.deUNSPECIFIED
Soto, Maritza G.School of Physics and Astronomy, Queen Mary University, 327 Mile End Road, London E1 4NS, UKUNSPECIFIED
Tilbrook, Rosanna H.Department of Physics and Astronomy, University of Leicester, University Road, Leicester LE1 7RH, UKUNSPECIFIED
Titz-Weider, RuthRuth.Titz (at) dlr.deUNSPECIFIED
Turner, OliverObservatoire de Genève, Université de Genève, 51 Ch. des Maillettes, CH-1290 Sauverny, SwitzerlandUNSPECIFIED
Udry, StéphaneObservatoire de Genève, Université de Genève, 51 Ch. des Maillettes, CH-1290 Sauverny, SwitzerlandUNSPECIFIED
Walker, Simon R.Department of Physics, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, UKUNSPECIFIED
Watson, Christopher A.Astrophysics Research Centre, School of Mathematics and Physics, Queen's University Belfast, Belfast BT7 1NN, UKUNSPECIFIED
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
Date:November 2019
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:489
DOI :10.1093/mnras/stz2349
Page Range:pp. 4125-4134
Publisher:Oxford University Press
ISSN:0035-8711
Status:Published
Keywords:planets and satellites: detection, planetary systems, Astrophysics - Earth and Planetary Astrophysics
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space Science and Exploration
DLR - Research area:Raumfahrt
DLR - Program:R EW - Erforschung des Weltraums
DLR - Research theme (Project):R - Project PLATO
Location: Berlin-Adlershof
Institutes and Institutions:Institute of Planetary Research > Extrasolar Planets and Atmospheres
Institute of Planetary Research > Leitungsbereich PF
Deposited By: Eigmüller, Dr. Philipp
Deposited On:02 Dec 2019 14:56
Last Modified:02 Dec 2019 14:56

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