K2-232 b: A transiting warm Saturn on an eccentric P = 11.2 d orbit around a V = 9.9 star

R. Brahm; N. Espinoza; A. Jordán; F. Rojas; P. Sarkis; M. R. Díaz; M. Rabus; H. Drass; R. Lachaume; M. G. Soto; J. S. Jenkins; M. I. Jones; Th Henning; B. Pantoja; M. Vučković

doi:10.1093/mnras/sty795

K2-232 b: A transiting warm Saturn on an eccentric P = 11.2 d orbit around a V = 9.9 star

R. Brahm
, N. Espinoza
, A. Jordán
, F. Rojas
, P. Sarkis
, M. R. Díaz
, M. Rabus
, H. Drass
, R. Lachaume
, M. G. Soto
, J. S. Jenkins
, M. I. Jones
, Th Henning
, B. Pantoja
, M. Vučković

Research output: Contribution to journal › Article › peer-review

23 Scopus citations

Abstract

We report the discovery of K2-232 b using photometric data of the Kepler K2 satellite coupled with ground-based spectroscopic observations. K2-232 b has a mass of M_P = 0.397 ± 0.037 M_J, a radius of R_P = 1.00 ± 0.020 R_J, and a moderately low equilibrium temperature of T_eq = 1030 ± 15K due to its relatively large star-planet separation of a = 0.1036 au. K2-232 b orbits its bright (V = 9.9) late F-type host star in an eccentric orbit (e = 0.258 ± 0.025) every 11.2 d, and is one of only four well-characterized warm Jupiters having host stars brighter than V = 10.We estimate a heavy element content of 20 ±7M_⊕ for K2-232 b, which is consistent with standard models of giant planet formation. The bright host star of K2-232 b makes this system a well-suited target for detailed follow-up observations that will aid in the study of the atmospheres and orbital evolution of giant planets at moderate separations from their host stars.

Original language	English
Pages (from-to)	2572-2581
Number of pages	10
Journal	Monthly Notices of the Royal Astronomical Society
Volume	477
Issue number	2
DOIs	https://doi.org/10.1093/mnras/sty795
State	Published - 21 Jun 2018
Externally published	Yes

Keywords

Planetary systems

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10.1093/mnras/sty795

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Brahm, R., Espinoza, N., Jordán, A., Rojas, F., Sarkis, P., Díaz, M. R., Rabus, M., Drass, H., Lachaume, R., Soto, M. G., Jenkins, J. S., Jones, M. I., Henning, T., Pantoja, B., & Vučković, M. (2018). K2-232 b: A transiting warm Saturn on an eccentric P = 11.2 d orbit around a V = 9.9 star. Monthly Notices of the Royal Astronomical Society, 477(2), 2572-2581. https://doi.org/10.1093/mnras/sty795

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title = "K2-232 b: A transiting warm Saturn on an eccentric P = 11.2 d orbit around a V = 9.9 star",

abstract = "We report the discovery of K2-232 b using photometric data of the Kepler K2 satellite coupled with ground-based spectroscopic observations. K2-232 b has a mass of MP = 0.397 ± 0.037 MJ, a radius of RP = 1.00 ± 0.020 RJ, and a moderately low equilibrium temperature of Teq = 1030 ± 15K due to its relatively large star-planet separation of a = 0.1036 au. K2-232 b orbits its bright (V = 9.9) late F-type host star in an eccentric orbit (e = 0.258 ± 0.025) every 11.2 d, and is one of only four well-characterized warm Jupiters having host stars brighter than V = 10.We estimate a heavy element content of 20 ±7M⊕ for K2-232 b, which is consistent with standard models of giant planet formation. The bright host star of K2-232 b makes this system a well-suited target for detailed follow-up observations that will aid in the study of the atmospheres and orbital evolution of giant planets at moderate separations from their host stars.",

keywords = "Planetary systems",

author = "R. Brahm and N. Espinoza and A. Jord{\'a}n and F. Rojas and P. Sarkis and D{\'i}az, \{M. R.\} and M. Rabus and H. Drass and R. Lachaume and Soto, \{M. G.\} and Jenkins, \{J. S.\} and Jones, \{M. I.\} and Th Henning and B. Pantoja and M. Vu{\v c}kovi{\'c}",

note = "Publisher Copyright: {\textcopyright} 2018 The Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society.",

year = "2018",

month = jun,

day = "21",

doi = "10.1093/mnras/sty795",

language = "English",

volume = "477",

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

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Brahm, R, Espinoza, N, Jordán, A, Rojas, F, Sarkis, P, Díaz, MR, Rabus, M, Drass, H, Lachaume, R, Soto, MG, Jenkins, JS, Jones, MI, Henning, T, Pantoja, B & Vučković, M 2018, 'K2-232 b: A transiting warm Saturn on an eccentric P = 11.2 d orbit around a V = 9.9 star', Monthly Notices of the Royal Astronomical Society, vol. 477, no. 2, pp. 2572-2581. https://doi.org/10.1093/mnras/sty795

TY - JOUR

T1 - K2-232 b

T2 - A transiting warm Saturn on an eccentric P = 11.2 d orbit around a V = 9.9 star

AU - Brahm, R.

AU - Espinoza, N.

AU - Jordán, A.

AU - Rojas, F.

AU - Sarkis, P.

AU - Díaz, M. R.

AU - Rabus, M.

AU - Drass, H.

AU - Lachaume, R.

AU - Soto, M. G.

AU - Jenkins, J. S.

AU - Jones, M. I.

AU - Henning, Th

AU - Pantoja, B.

AU - Vučković, M.

PY - 2018/6/21

Y1 - 2018/6/21

N2 - We report the discovery of K2-232 b using photometric data of the Kepler K2 satellite coupled with ground-based spectroscopic observations. K2-232 b has a mass of MP = 0.397 ± 0.037 MJ, a radius of RP = 1.00 ± 0.020 RJ, and a moderately low equilibrium temperature of Teq = 1030 ± 15K due to its relatively large star-planet separation of a = 0.1036 au. K2-232 b orbits its bright (V = 9.9) late F-type host star in an eccentric orbit (e = 0.258 ± 0.025) every 11.2 d, and is one of only four well-characterized warm Jupiters having host stars brighter than V = 10.We estimate a heavy element content of 20 ±7M⊕ for K2-232 b, which is consistent with standard models of giant planet formation. The bright host star of K2-232 b makes this system a well-suited target for detailed follow-up observations that will aid in the study of the atmospheres and orbital evolution of giant planets at moderate separations from their host stars.

AB - We report the discovery of K2-232 b using photometric data of the Kepler K2 satellite coupled with ground-based spectroscopic observations. K2-232 b has a mass of MP = 0.397 ± 0.037 MJ, a radius of RP = 1.00 ± 0.020 RJ, and a moderately low equilibrium temperature of Teq = 1030 ± 15K due to its relatively large star-planet separation of a = 0.1036 au. K2-232 b orbits its bright (V = 9.9) late F-type host star in an eccentric orbit (e = 0.258 ± 0.025) every 11.2 d, and is one of only four well-characterized warm Jupiters having host stars brighter than V = 10.We estimate a heavy element content of 20 ±7M⊕ for K2-232 b, which is consistent with standard models of giant planet formation. The bright host star of K2-232 b makes this system a well-suited target for detailed follow-up observations that will aid in the study of the atmospheres and orbital evolution of giant planets at moderate separations from their host stars.

KW - Planetary systems

UR - https://www.scopus.com/pages/publications/85047168417

U2 - 10.1093/mnras/sty795

DO - 10.1093/mnras/sty795

M3 - Article

AN - SCOPUS:85047168417

SN - 0035-8711

VL - 477

SP - 2572

EP - 2581

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

IS - 2

ER -

K2-232 b: A transiting warm Saturn on an eccentric P = 11.2 d orbit around a V = 9.9 star

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