WASP-113b and WASP-114b, two inflated hot Jupiters with contrasting densities

S. C. C. Barros; D. J. A. Brown; G. Hébrard; Y. Gómez Maqueo Chew; D. R. Anderson; P. Boumis; L. Delrez; K. L. Hay; K. W. F. Lam; J. Llama; M. Lendl; J. McCormac; B. Skiff; B. Smalley; O. Turner; M. Vanhuysse; D. J. Armstrong; I. Boisse; F. Bouchy; A. Collier Cameron; F. Faedi; M. Gillon; C. Hellier; E. Jehin; A. Liakos; J. Meaburn; H. P. Osborn; F. Pepe; I. Plauchu-Frayn; D. Pollacco; D. Queloz; J. Rey; J. Spake; D. Ségransan; A. H. M. Triaud; S. Udry; S. R. Walker; C. A. Watson; R. G. West; P. J. Wheatley

doi:10.1051/0004-6361/201526517

WASP-113b and WASP-114b, two inflated hot Jupiters with contrasting densities

S. C. C. Barros, D. J. A. Brown, G. Hébrard, Y. Gómez Maqueo Chew, D. R. Anderson, P. Boumis, L. Delrez, K. L. Hay, K. W. F. Lam, J. Llama, M. Lendl, J. McCormac, B. Skiff, B. Smalley, O. Turner, M. Vanhuysse, D. J. Armstrong, I. Boisse, F. Bouchy, A. Collier CameronF. Faedi, M. Gillon, C. Hellier, E. Jehin, A. Liakos, J. Meaburn, H. P. Osborn, F. Pepe, I. Plauchu-Frayn, D. Pollacco, D. Queloz, J. Rey, J. Spake, D. Ségransan, A. H. M. Triaud, S. Udry, S. R. Walker, C. A. Watson, R. G. West, P. J. Wheatley

School of Physics and Astronomy

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

Abstract

Aims. We present the discovery and characterisation of the exoplanets WASP-113b and WASP-114b by the WASP surveys, SOPHIE and CORALIE.
Methods. The planetary nature of the systems was established by performing follow-up photometric and spectroscopic observations. The follow-up data were combined with the WASP-photometry and analysed with an MCMC code to obtain system parameters.
Results. The host stars WASP-113 and WASP-114 are very similar. They are both early G-type stars with an effective temperature of ~5900 K, [Fe/H] ~ 0.12, and log g~ 4.1 dex. However, WASP-113 is older than WASP-114. Although the planetary companions have similar radii, WASP-114b is almost four times heavier than WASP-113b. WASP-113b has a mass of 0.48 M_Jupand an orbital period of ~4.5 days; WASP-114b has a mass of 1.77 M_Jup and an orbital period of ~1.5 days. Both planets have inflated radii, in particular WASP-113 with a radius anomaly of ℜ = 0.35. The high scale height of WASP-113b (~950 km) makes it a good target for follow-up atmospheric observations.

Original language	English
Article number	A113
Number of pages	9
Journal	Astronomy & Astrophysics
Volume	593
Early online date	3 Oct 2016
DOIs	https://doi.org/10.1051/0004-6361/201526517
Publication status	Published - 2016

Keywords

Planets and satellites: detection
Stars: individual: WASP-113
Stars: individual: WASP-114
Techniques: radial velocities
Techniques: photometric

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10.1051/0004-6361/201526517

CollierCameron_2016_A&A_ContrastingDensities_FinalPubVersion
© ESO, 2016. This work is 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://dx.doi.org/10.1051/0004-6361/201526517
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https://arxiv.org/abs/1607.02341

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
PATT linked Travel and Subsistence: St Andrrews Astronomy PATT linked Travel and subsistence
Cameron, A. C. (PI), Driver, S. P. (CoI), Greaves, J. S. (CoI) & Horne, K. D. (CoI)
Science & Technology Facilities Council
1/10/10 → 30/09/13
Project: Standard
PATT Linked Travel ST/G001006/1: Patt Linked Travel & Subsistence
Cameron, A. C. (PI), Driver, S. P. (CoI), Greaves, J. S. (CoI) & Horne, K. D. (CoI)
Science & Technology Facilities Council
1/10/08 → 30/09/10
Project: Standard

Cite this

Barros, S. C. C., Brown, D. J. A., Hébrard, G., Gómez Maqueo Chew, Y., Anderson, D. R., Boumis, P., Delrez, L., Hay, K. L., Lam, K. W. F., Llama, J., Lendl, M., McCormac, J., Skiff, B., Smalley, B., Turner, O., Vanhuysse, M., Armstrong, D. J., Boisse, I., Bouchy, F., ... Wheatley, P. J. (2016). WASP-113b and WASP-114b, two inflated hot Jupiters with contrasting densities. Astronomy & Astrophysics, 593, Article A113. https://doi.org/10.1051/0004-6361/201526517

@article{afe3250857e84b42832676352b83ab47,

title = "WASP-113b and WASP-114b, two inflated hot Jupiters with contrasting densities",

abstract = "Aims. We present the discovery and characterisation of the exoplanets WASP-113b and WASP-114b by the WASP surveys, SOPHIE and CORALIE.Methods. The planetary nature of the systems was established by performing follow-up photometric and spectroscopic observations. The follow-up data were combined with the WASP-photometry and analysed with an MCMC code to obtain system parameters.Results. The host stars WASP-113 and WASP-114 are very similar. They are both early G-type stars with an effective temperature of ~5900 K, [Fe/H] ~ 0.12, and log g~ 4.1 dex. However, WASP-113 is older than WASP-114. Although the planetary companions have similar radii, WASP-114b is almost four times heavier than WASP-113b. WASP-113b has a mass of 0.48 MJup and an orbital period of ~4.5 days; WASP-114b has a mass of 1.77 MJup and an orbital period of ~1.5 days. Both planets have inflated radii, in particular WASP-113 with a radius anomaly of ℜ = 0.35. The high scale height of WASP-113b (~950 km) makes it a good target for follow-up atmospheric observations.",

keywords = "Planets and satellites: detection, Stars: individual: WASP-113, Stars: individual: WASP-114, Techniques: radial velocities, Techniques: photometric",

author = "Barros, {S. C. C.} and Brown, {D. J. A.} and G. H{\'e}brard and {G{\'o}mez Maqueo Chew}, Y. and Anderson, {D. R.} and P. Boumis and L. Delrez and Hay, {K. L.} and Lam, {K. W. F.} and J. Llama and M. Lendl and J. McCormac and B. Skiff and B. Smalley and O. Turner and M. Vanhuysse and Armstrong, {D. J.} and I. Boisse and F. Bouchy and {Collier Cameron}, A. and F. Faedi and M. Gillon and C. Hellier and E. Jehin and A. Liakos and J. Meaburn and Osborn, {H. P.} and F. Pepe and I. Plauchu-Frayn and D. Pollacco and D. Queloz and J. Rey and J. Spake and D. S{\'e}gransan and Triaud, {A. H. M.} and S. Udry and Walker, {S. R.} and Watson, {C. A.} and West, {R. G.} and Wheatley, {P. J.}",

year = "2016",

doi = "10.1051/0004-6361/201526517",

language = "English",

volume = "593",

journal = "Astronomy & Astrophysics",

issn = "0004-6361",

publisher = "EDP SCIENCES S A",

}

Barros, SCC, Brown, DJA, Hébrard, G, Gómez Maqueo Chew, Y, Anderson, DR, Boumis, P, Delrez, L, Hay, KL, Lam, KWF, Llama, J, Lendl, M, McCormac, J, Skiff, B, Smalley, B, Turner, O, Vanhuysse, M, Armstrong, DJ, Boisse, I, Bouchy, F, Collier Cameron, A, Faedi, F, Gillon, M, Hellier, C, Jehin, E, Liakos, A, Meaburn, J, Osborn, HP, Pepe, F, Plauchu-Frayn, I, Pollacco, D, Queloz, D, Rey, J, Spake, J, Ségransan, D, Triaud, AHM, Udry, S, Walker, SR, Watson, CA, West, RG & Wheatley, PJ 2016, 'WASP-113b and WASP-114b, two inflated hot Jupiters with contrasting densities', Astronomy & Astrophysics, vol. 593, A113. https://doi.org/10.1051/0004-6361/201526517

TY - JOUR

T1 - WASP-113b and WASP-114b, two inflated hot Jupiters with contrasting densities

AU - Barros, S. C. C.

AU - Brown, D. J. A.

AU - Hébrard, G.

AU - Gómez Maqueo Chew, Y.

AU - Anderson, D. R.

AU - Boumis, P.

AU - Delrez, L.

AU - Hay, K. L.

AU - Lam, K. W. F.

AU - Llama, J.

AU - Lendl, M.

AU - McCormac, J.

AU - Skiff, B.

AU - Smalley, B.

AU - Turner, O.

AU - Vanhuysse, M.

AU - Armstrong, D. J.

AU - Boisse, I.

AU - Bouchy, F.

AU - Collier Cameron, A.

AU - Faedi, F.

AU - Gillon, M.

AU - Hellier, C.

AU - Jehin, E.

AU - Liakos, A.

AU - Meaburn, J.

AU - Osborn, H. P.

AU - Pepe, F.

AU - Plauchu-Frayn, I.

AU - Pollacco, D.

AU - Queloz, D.

AU - Rey, J.

AU - Spake, J.

AU - Ségransan, D.

AU - Triaud, A. H. M.

AU - Udry, S.

AU - Walker, S. R.

AU - Watson, C. A.

AU - West, R. G.

AU - Wheatley, P. J.

PY - 2016

Y1 - 2016

N2 - Aims. We present the discovery and characterisation of the exoplanets WASP-113b and WASP-114b by the WASP surveys, SOPHIE and CORALIE.Methods. The planetary nature of the systems was established by performing follow-up photometric and spectroscopic observations. The follow-up data were combined with the WASP-photometry and analysed with an MCMC code to obtain system parameters.Results. The host stars WASP-113 and WASP-114 are very similar. They are both early G-type stars with an effective temperature of ~5900 K, [Fe/H] ~ 0.12, and log g~ 4.1 dex. However, WASP-113 is older than WASP-114. Although the planetary companions have similar radii, WASP-114b is almost four times heavier than WASP-113b. WASP-113b has a mass of 0.48 MJup and an orbital period of ~4.5 days; WASP-114b has a mass of 1.77 MJup and an orbital period of ~1.5 days. Both planets have inflated radii, in particular WASP-113 with a radius anomaly of ℜ = 0.35. The high scale height of WASP-113b (~950 km) makes it a good target for follow-up atmospheric observations.

AB - Aims. We present the discovery and characterisation of the exoplanets WASP-113b and WASP-114b by the WASP surveys, SOPHIE and CORALIE.Methods. The planetary nature of the systems was established by performing follow-up photometric and spectroscopic observations. The follow-up data were combined with the WASP-photometry and analysed with an MCMC code to obtain system parameters.Results. The host stars WASP-113 and WASP-114 are very similar. They are both early G-type stars with an effective temperature of ~5900 K, [Fe/H] ~ 0.12, and log g~ 4.1 dex. However, WASP-113 is older than WASP-114. Although the planetary companions have similar radii, WASP-114b is almost four times heavier than WASP-113b. WASP-113b has a mass of 0.48 MJup and an orbital period of ~4.5 days; WASP-114b has a mass of 1.77 MJup and an orbital period of ~1.5 days. Both planets have inflated radii, in particular WASP-113 with a radius anomaly of ℜ = 0.35. The high scale height of WASP-113b (~950 km) makes it a good target for follow-up atmospheric observations.

KW - Planets and satellites: detection

KW - Stars: individual: WASP-113

KW - Stars: individual: WASP-114

KW - Techniques: radial velocities

KW - Techniques: photometric

U2 - 10.1051/0004-6361/201526517

DO - 10.1051/0004-6361/201526517

M3 - Article

SN - 0004-6361

VL - 593

JO - Astronomy & Astrophysics

JF - Astronomy & Astrophysics

M1 - A113

ER -

WASP-113b and WASP-114b, two inflated hot Jupiters with contrasting densities

Abstract

Keywords

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

PATT linked Travel and Subsistence: St Andrrews Astronomy PATT linked Travel and subsistence

PATT Linked Travel ST/G001006/1: Patt Linked Travel & Subsistence

Cite this