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

Jose I. Vines; James S. Jenkins; Jack S. Acton; Joshua Briegal; Daniel Bayliss; François Bouchy; Claudia Belardi; Edward M. Bryant; Matthew R. Burleigh; Juan Cabrera; Sarah L. Casewell; Alexander Chaushev; Benjamin F. Cooke; Szilárd Csizmadia; Philipp Eigmüller; Anders Erikson; Emma Foxell; Samuel Gill; Edward Gillen; Michael R. Goad; James A. G. Jackman; George W. King; Tom Louden; James McCormac; Maximiliano Moyano; Louise D. Nielsen; Don Pollacco; Didier Queloz; Heike Rauer; Liam Raynard; Alexis M. S. Smith; Maritza G. Soto; Rosanna H. Tilbrook; Ruth Titz-Weider; Oliver Turner; Stéphane Udry; Simon R. Walker; Christopher A. Watson; Richard G. West; Peter J. Wheatley

doi:10.1093/mnras/stz2349

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

Jose I. Vines, James S. Jenkins, Jack S. Acton, Joshua Briegal, Daniel Bayliss, François Bouchy, Claudia Belardi, Edward M. Bryant, Matthew R. Burleigh, Juan Cabrera, Sarah L. Casewell, Alexander Chaushev, Benjamin F. Cooke, Szilárd Csizmadia, Philipp Eigmüller, Anders Erikson, Emma Foxell, Samuel Gill, Edward Gillen, Michael R. GoadJames A. G. Jackman, George W. King, Tom Louden, James McCormac, Maximiliano Moyano, Louise D. Nielsen, Don Pollacco, Didier Queloz, Heike Rauer, Liam Raynard, Alexis M. S. Smith, Maritza G. Soto, Rosanna H. Tilbrook, Ruth Titz-Weider, Oliver Turner, Stéphane Udry, Simon R. Walker, Christopher A. Watson, Richard G. West, Peter J. Wheatley

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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.

Original language	English
Pages (from-to)	4125-4134
Journal	Monthly Notices of the Royal Astronomical Society
Volume	489
Issue number	3
Early online date	27 Aug 2019
DOIs	https://doi.org/10.1093/mnras/stz2349
Publication status	Published - 01 Nov 2019
Externally published	Yes

Keywords

planets and satellites: detection
planetary systems

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NGTS-6b: an ultrashort period hot-Jupiter orbiting an old K dwarf
© 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society.This work is made available online in accordance with the publisher’s policies. Please refer to any applicable terms of use of the publisher.
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Vines, J. I., Jenkins, J. S., Acton, J. S., Briegal, J., Bayliss, D., Bouchy, F., Belardi, C., Bryant, E. M., Burleigh, M. R., Cabrera, J., Casewell, S. L., Chaushev, A., Cooke, B. F., Csizmadia, S., Eigmüller, P., Erikson, A., Foxell, E., Gill, S., Gillen, E., ... Wheatley, P. J. (2019). NGTS-6b: an ultrashort period hot-Jupiter orbiting an old K dwarf. Monthly Notices of the Royal Astronomical Society, 489(3), 4125-4134. https://doi.org/10.1093/mnras/stz2349

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title = "NGTS-6b: an ultrashort period hot-Jupiter orbiting an old K dwarf",

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.",

keywords = "planets and satellites: detection, planetary systems",

author = "Vines, {Jose I.} and Jenkins, {James S.} and Acton, {Jack S.} and Joshua Briegal and Daniel Bayliss and Fran{\c c}ois Bouchy and Claudia Belardi and Bryant, {Edward M.} and Burleigh, {Matthew R.} and Juan Cabrera and Casewell, {Sarah L.} and Alexander Chaushev and Cooke, {Benjamin F.} and Szil{\'a}rd Csizmadia and Philipp Eigm{\"u}ller and Anders Erikson and Emma Foxell and Samuel Gill and Edward Gillen and Goad, {Michael R.} and Jackman, {James A. G.} and King, {George W.} and Tom Louden and James McCormac and Maximiliano Moyano and Nielsen, {Louise D.} and Don Pollacco and Didier Queloz and Heike Rauer and Liam Raynard and Smith, {Alexis M. S.} and Soto, {Maritza G.} and Tilbrook, {Rosanna H.} and Ruth Titz-Weider and Oliver Turner and St{\'e}phane Udry and Walker, {Simon R.} and Watson, {Christopher A.} and West, {Richard G.} and Wheatley, {Peter J.}",

year = "2019",

month = nov,

day = "1",

doi = "10.1093/mnras/stz2349",

language = "English",

volume = "489",

pages = "4125--4134",

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

issn = "0035-8711",

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Vines, JI, Jenkins, JS, Acton, JS, Briegal, J, Bayliss, D, Bouchy, F, Belardi, C, Bryant, EM, Burleigh, MR, Cabrera, J, Casewell, SL, Chaushev, A, Cooke, BF, Csizmadia, S, Eigmüller, P, Erikson, A, Foxell, E, Gill, S, Gillen, E, Goad, MR, Jackman, JAG, King, GW, Louden, T, McCormac, J, Moyano, M, Nielsen, LD, Pollacco, D, Queloz, D, Rauer, H, Raynard, L, Smith, AMS, Soto, MG, Tilbrook, RH, Titz-Weider, R, Turner, O, Udry, S, Walker, SR, Watson, CA, West, RG & Wheatley, PJ 2019, 'NGTS-6b: an ultrashort period hot-Jupiter orbiting an old K dwarf', Monthly Notices of the Royal Astronomical Society, vol. 489, no. 3, pp. 4125-4134. https://doi.org/10.1093/mnras/stz2349

TY - JOUR

T1 - NGTS-6b: an ultrashort period hot-Jupiter orbiting an old K dwarf

AU - Vines, Jose I.

AU - Jenkins, James S.

AU - Acton, Jack S.

AU - Briegal, Joshua

AU - Bayliss, Daniel

AU - Bouchy, François

AU - Belardi, Claudia

AU - Bryant, Edward M.

AU - Burleigh, Matthew R.

AU - Cabrera, Juan

AU - Casewell, Sarah L.

AU - Chaushev, Alexander

AU - Cooke, Benjamin F.

AU - Csizmadia, Szilárd

AU - Eigmüller, Philipp

AU - Erikson, Anders

AU - Foxell, Emma

AU - Gill, Samuel

AU - Gillen, Edward

AU - Goad, Michael R.

AU - Jackman, James A. G.

AU - King, George W.

AU - Louden, Tom

AU - McCormac, James

AU - Moyano, Maximiliano

AU - Nielsen, Louise D.

AU - Pollacco, Don

AU - Queloz, Didier

AU - Rauer, Heike

AU - Raynard, Liam

AU - Smith, Alexis M. S.

AU - Soto, Maritza G.

AU - Tilbrook, Rosanna H.

AU - Titz-Weider, Ruth

AU - Turner, Oliver

AU - Udry, Stéphane

AU - Walker, Simon R.

AU - Watson, Christopher A.

AU - West, Richard G.

AU - Wheatley, Peter J.

PY - 2019/11/1

Y1 - 2019/11/1

N2 - 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.

AB - 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.

KW - planets and satellites: detection

KW - planetary systems

U2 - 10.1093/mnras/stz2349

DO - 10.1093/mnras/stz2349

M3 - Article

SN - 0035-8711

VL - 489

SP - 4125

EP - 4134

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 3

ER -

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

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