K2-140b - an eccentric 6.57 d transiting hot Jupiter in Virgo

H. A. C. Giles; D. Bayliss; N. Espinoza; R. Brahm; S. Blanco-Cuaresma; A. Shporer; D. Armstrong; C. Lovis; S. Udry; F. Bouchy; M. Marmier; A. Jordán; J. Bento; A. Collier Cameron; R. Sefako; W. D. Cochran; F. Rojas; M. Rabus; J. S. Jenkins; M. Jones; B. Pantoja; M. Soto; R. Jensen-Clem; D. A. Duev; M. Salama; R. Riddle; C. Baranec; N. M. Law

doi:10.1093/mnras/stx3300

K2-140b - an eccentric 6.57 d transiting hot Jupiter in Virgo

H. A. C. Giles, D. Bayliss, N. Espinoza, R. Brahm, S. Blanco-Cuaresma, A. Shporer, D. Armstrong, C. Lovis, S. Udry, F. Bouchy, M. Marmier, A. Jordán, J. Bento, A. Collier Cameron, R. Sefako, W. D. Cochran, F. Rojas, M. Rabus, J. S. Jenkins, M. JonesB. Pantoja, M. Soto, R. Jensen-Clem, D. A. Duev, M. Salama, R. Riddle, C. Baranec, N. M. Law

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Abstract

We present the discovery of K2-140b, a P = 6.57 d Jupiter-mass (MP = 1.019 ± 0.070M_Jup) planet transiting a V = 12.5 (G5-spectral type) star in an eccentric orbit (e = 0.120^{+0.056}_{-0.046}) detected using a combination of K2 photometry and ground-based observations. With a radius of 1.095 ± 0.018R_Jup, the planet has a bulk density of 0.726 ± 0.062ρ_Jup. The host star has a [Fe/H] of 0.12 ± 0.045,and from the K2 light curve, we find a rotation period for the star of 16.3 ± 0.1d. This discovery is the 9th hot Jupiter from K2 and highlights K2's ability to detect transiting giant planets at periods slightly longer than traditional, ground-based surveys. This planet is slightly inflated, but much less than others with similar incident fluxes. These are of interest for investigating the inflation mechanism of hot Jupiters.

Original language	English
Pages (from-to)	1809-1818
Journal	Monthly Notices of the Royal Astronomical Society
Volume	475
Issue number	2
Early online date	5 Jan 2018
DOIs	https://doi.org/10.1093/mnras/stx3300
Publication status	Published - 1 Apr 2018

Keywords

Techniques: high angular resolution
Techniques: photometric
Techniques: radial velocities
Planets and satellites: detection
Stars: individual: K2-140

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10.1093/mnras/stx3300

Giles-2018-K2-140b-MNRAS-1809
© 2018, the Author(s). This work has been made available online in accordance with the publisher’s policies. This is the final published version of the work, which was originally published at https://doi.org/10.1093/mnras/stx3300
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http://adsabs.harvard.edu/abs/2018MNRAS.475.1809G

Astronomy at St Andrews 2015-2018: Astronomy at St Andrews 2015-2018
Jardine, M. M. (PI), Cameron, A. C. (CoI), Cyganowski, C. J. (CoI), Horne, K. D. (CoI) & Wood, K. (CoI)
Science & Technology Facilities Council
1/04/15 → 31/03/18
Project: Standard

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Giles, H. A. C., Bayliss, D., Espinoza, N., Brahm, R., Blanco-Cuaresma, S., Shporer, A., Armstrong, D., Lovis, C., Udry, S., Bouchy, F., Marmier, M., Jordán, A., Bento, J., Cameron, A. C., Sefako, R., Cochran, W. D., Rojas, F., Rabus, M., Jenkins, J. S., ... Law, N. M. (2018). K2-140b - an eccentric 6.57 d transiting hot Jupiter in Virgo. Monthly Notices of the Royal Astronomical Society, 475(2), 1809-1818. https://doi.org/10.1093/mnras/stx3300

@article{87d2b9c643544f52bacc7ba0dfa13472,

title = "K2-140b - an eccentric 6.57 d transiting hot Jupiter in Virgo",

abstract = "We present the discovery of K2-140b, a P = 6.57 d Jupiter-mass (MP = 1.019 ± 0.070MJup) planet transiting a V = 12.5 (G5-spectral type) star in an eccentric orbit (e = 0.120^{+0.056}_{-0.046}) detected using a combination of K2 photometry and ground-based observations. With a radius of 1.095 ± 0.018RJup, the planet has a bulk density of 0.726 ± 0.062ρJup. The host star has a [Fe/H] of 0.12 ± 0.045,and from the K2 light curve, we find a rotation period for the star of 16.3 ± 0.1d. This discovery is the 9th hot Jupiter from K2 and highlights K2's ability to detect transiting giant planets at periods slightly longer than traditional, ground-based surveys. This planet is slightly inflated, but much less than others with similar incident fluxes. These are of interest for investigating the inflation mechanism of hot Jupiters.",

keywords = "Techniques: high angular resolution, Techniques: photometric, Techniques: radial velocities, Planets and satellites: detection, Stars: individual: K2-140",

author = "Giles, {H. A. C.} and D. Bayliss and N. Espinoza and R. Brahm and S. Blanco-Cuaresma and A. Shporer and D. Armstrong and C. Lovis and S. Udry and F. Bouchy and M. Marmier and A. Jord{\'a}n and J. Bento and Cameron, {A. Collier} and R. Sefako and Cochran, {W. D.} and F. Rojas and M. Rabus and Jenkins, {J. S.} and M. Jones and B. Pantoja and M. Soto and R. Jensen-Clem and Duev, {D. A.} and M. Salama and R. Riddle and C. Baranec and Law, {N. M.}",

note = "Funding: STFC consolidated grant number ST/M001296/1 (ACC)",

year = "2018",

month = apr,

day = "1",

doi = "10.1093/mnras/stx3300",

language = "English",

volume = "475",

pages = "1809--1818",

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

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Giles, HAC, Bayliss, D, Espinoza, N, Brahm, R, Blanco-Cuaresma, S, Shporer, A, Armstrong, D, Lovis, C, Udry, S, Bouchy, F, Marmier, M, Jordán, A, Bento, J, Cameron, AC, Sefako, R, Cochran, WD, Rojas, F, Rabus, M, Jenkins, JS, Jones, M, Pantoja, B, Soto, M, Jensen-Clem, R, Duev, DA, Salama, M, Riddle, R, Baranec, C & Law, NM 2018, 'K2-140b - an eccentric 6.57 d transiting hot Jupiter in Virgo', Monthly Notices of the Royal Astronomical Society, vol. 475, no. 2, pp. 1809-1818. https://doi.org/10.1093/mnras/stx3300

TY - JOUR

T1 - K2-140b - an eccentric 6.57 d transiting hot Jupiter in Virgo

AU - Giles, H. A. C.

AU - Bayliss, D.

AU - Espinoza, N.

AU - Brahm, R.

AU - Blanco-Cuaresma, S.

AU - Shporer, A.

AU - Armstrong, D.

AU - Lovis, C.

AU - Udry, S.

AU - Bouchy, F.

AU - Marmier, M.

AU - Jordán, A.

AU - Bento, J.

AU - Cameron, A. Collier

AU - Sefako, R.

AU - Cochran, W. D.

AU - Rojas, F.

AU - Rabus, M.

AU - Jenkins, J. S.

AU - Jones, M.

AU - Pantoja, B.

AU - Soto, M.

AU - Jensen-Clem, R.

AU - Duev, D. A.

AU - Salama, M.

AU - Riddle, R.

AU - Baranec, C.

AU - Law, N. M.

N1 - Funding: STFC consolidated grant number ST/M001296/1 (ACC)

PY - 2018/4/1

Y1 - 2018/4/1

N2 - We present the discovery of K2-140b, a P = 6.57 d Jupiter-mass (MP = 1.019 ± 0.070MJup) planet transiting a V = 12.5 (G5-spectral type) star in an eccentric orbit (e = 0.120^{+0.056}_{-0.046}) detected using a combination of K2 photometry and ground-based observations. With a radius of 1.095 ± 0.018RJup, the planet has a bulk density of 0.726 ± 0.062ρJup. The host star has a [Fe/H] of 0.12 ± 0.045,and from the K2 light curve, we find a rotation period for the star of 16.3 ± 0.1d. This discovery is the 9th hot Jupiter from K2 and highlights K2's ability to detect transiting giant planets at periods slightly longer than traditional, ground-based surveys. This planet is slightly inflated, but much less than others with similar incident fluxes. These are of interest for investigating the inflation mechanism of hot Jupiters.

AB - We present the discovery of K2-140b, a P = 6.57 d Jupiter-mass (MP = 1.019 ± 0.070MJup) planet transiting a V = 12.5 (G5-spectral type) star in an eccentric orbit (e = 0.120^{+0.056}_{-0.046}) detected using a combination of K2 photometry and ground-based observations. With a radius of 1.095 ± 0.018RJup, the planet has a bulk density of 0.726 ± 0.062ρJup. The host star has a [Fe/H] of 0.12 ± 0.045,and from the K2 light curve, we find a rotation period for the star of 16.3 ± 0.1d. This discovery is the 9th hot Jupiter from K2 and highlights K2's ability to detect transiting giant planets at periods slightly longer than traditional, ground-based surveys. This planet is slightly inflated, but much less than others with similar incident fluxes. These are of interest for investigating the inflation mechanism of hot Jupiters.

KW - Techniques: high angular resolution

KW - Techniques: photometric

KW - Techniques: radial velocities

KW - Planets and satellites: detection

KW - Stars: individual: K2-140

U2 - 10.1093/mnras/stx3300

DO - 10.1093/mnras/stx3300

M3 - Article

SN - 0035-8711

VL - 475

SP - 1809

EP - 1818

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 2

ER -

K2-140b - an eccentric 6.57 d transiting hot Jupiter in Virgo

Abstract

Keywords

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Astronomy at St Andrews 2015-2018: Astronomy at St Andrews 2015-2018

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