WASP-32b: A Transiting Hot Jupiter Planet Orbiting a Lithium-Poor, Solar-Type Star

P.~F.~L. Maxted; D.~R. Anderson; A. Collier Cameron; M. Gillon; C. Hellier; D. Queloz; B. Smalley; A.~H.~M.~J. Triaud; R.~G. West; R. Enoch; T.~A. Lister; F. Pepe; D.~L. Pollacco; D. Ségransan; I. Skillen; S. Udry

doi:10.1086/657658

WASP-32b: A Transiting Hot Jupiter Planet Orbiting a Lithium-Poor, Solar-Type Star

P.~F.~L. Maxted, D.~R. Anderson, A. Collier Cameron, M. Gillon, C. Hellier, D. Queloz, B. Smalley, A.~H.~M.~J. Triaud, R.~G. West, R. Enoch, T.~A. Lister, F. Pepe, D.~L. Pollacco, D. Ségransan, I. Skillen, S. Udry

Physics and Astronomy

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

20 Citations (Scopus)

Abstract

We report the discovery of a transiting planet orbiting the star TYC 2-1155-1. The star, WASP-32, is a moderately bright (V = 11.3) solar-type star (T$_eff$ = 6100 plusmn 100 K, [Fe/H] = -0.13 plusmn 0.10). The light curve of the star obtained with the WASP-South and WASP-North instruments shows periodic transitlike features with a depth of about 1% and a duration of 0.10 day every 2.72 days. The presence of a transitlike feature in the light curve is confirmed using z -band photometry obtained with Faulkes Telescope North. High-resolution spectroscopy obtained with the Coralie spectrograph confirms the presence of a planetary mass companion. From a combined analysis of the spectroscopic and photometric data, assuming that the star is a typical main-sequence star, we estimate that the planet has a mass M$_p$ of 3.60 plusmn 0.07 M$_Jup$ and a radius R$_p$ = 1.19 plusmn 0.06 R$_Jup$. WASP-32 is one of a small group of hot Jupiters with masses greater than 3 M$_Jup$. We find that some stars with hot Jupiter companions and with masses M$_⋆$ ap 1.2 M$_⊙$, including WASP-32, are depleted in lithium and that the majority of these stars have lithium abundances similar to field stars.

Original language	English
Pages (from-to)	1465
Number of pages	1
Journal	Publications of the Astronomical Society of the Pacific
Volume	122
DOIs	https://doi.org/10.1086/657658
Publication status	Published - 1 Dec 2010

Access to Document

10.1086/657658

Cite this

Maxted, P. F. L., Anderson, D. R., Collier Cameron, A., Gillon, M., Hellier, C., Queloz, D., Smalley, B., Triaud, A. H. M. J., West, R. G., Enoch, R., Lister, T. A., Pepe, F., Pollacco, D. L., Ségransan, D., Skillen, I., & Udry, S. (2010). WASP-32b: A Transiting Hot Jupiter Planet Orbiting a Lithium-Poor, Solar-Type Star. Publications of the Astronomical Society of the Pacific, 122, 1465. https://doi.org/10.1086/657658

@article{cd741d18a8bd4d689ea58498cd0a6a7a,

title = "WASP-32b: A Transiting Hot Jupiter Planet Orbiting a Lithium-Poor, Solar-Type Star",

abstract = "We report the discovery of a transiting planet orbiting the star TYC 2-1155-1. The star, WASP-32, is a moderately bright (V = 11.3) solar-type star (T$_eff$ = 6100 plusmn 100 K, [Fe/H] = -0.13 plusmn 0.10). The light curve of the star obtained with the WASP-South and WASP-North instruments shows periodic transitlike features with a depth of about 1% and a duration of 0.10 day every 2.72 days. The presence of a transitlike feature in the light curve is confirmed using z -band photometry obtained with Faulkes Telescope North. High-resolution spectroscopy obtained with the Coralie spectrograph confirms the presence of a planetary mass companion. From a combined analysis of the spectroscopic and photometric data, assuming that the star is a typical main-sequence star, we estimate that the planet has a mass M$_p$ of 3.60 plusmn 0.07 M$_Jup$ and a radius R$_p$ = 1.19 plusmn 0.06 R$_Jup$. WASP-32 is one of a small group of hot Jupiters with masses greater than 3 M$_Jup$. We find that some stars with hot Jupiter companions and with masses M$_⋆$ ap 1.2 M$_⊙$, including WASP-32, are depleted in lithium and that the majority of these stars have lithium abundances similar to field stars. ",

author = "P.~F.~L. Maxted and D.~R. Anderson and {Collier Cameron}, A. and M. Gillon and C. Hellier and D. Queloz and B. Smalley and A.~H.~M.~J. Triaud and R.~G. West and R. Enoch and T.~A. Lister and F. Pepe and D.~L. Pollacco and D. S{\'e}gransan and I. Skillen and S. Udry",

year = "2010",

month = dec,

day = "1",

doi = "10.1086/657658",

language = "English",

volume = "122",

pages = "1465",

journal = "Publications of the Astronomical Society of the Pacific",

issn = "0004-6280",

publisher = "Astronomical Society of the Pacific",

}

Maxted, PFL, Anderson, DR, Collier Cameron, A, Gillon, M, Hellier, C, Queloz, D, Smalley, B, Triaud, AHMJ, West, RG, Enoch, R, Lister, TA, Pepe, F, Pollacco, DL, Ségransan, D, Skillen, I & Udry, S 2010, 'WASP-32b: A Transiting Hot Jupiter Planet Orbiting a Lithium-Poor, Solar-Type Star', Publications of the Astronomical Society of the Pacific, vol. 122, pp. 1465. https://doi.org/10.1086/657658

TY - JOUR

T1 - WASP-32b: A Transiting Hot Jupiter Planet Orbiting a Lithium-Poor, Solar-Type Star

AU - Maxted, P.~F.~L.

AU - Anderson, D.~R.

AU - Collier Cameron, A.

AU - Gillon, M.

AU - Hellier, C.

AU - Queloz, D.

AU - Smalley, B.

AU - Triaud, A.~H.~M.~J.

AU - West, R.~G.

AU - Enoch, R.

AU - Lister, T.~A.

AU - Pepe, F.

AU - Pollacco, D.~L.

AU - Ségransan, D.

AU - Skillen, I.

AU - Udry, S.

PY - 2010/12/1

Y1 - 2010/12/1

N2 - We report the discovery of a transiting planet orbiting the star TYC 2-1155-1. The star, WASP-32, is a moderately bright (V = 11.3) solar-type star (T$_eff$ = 6100 plusmn 100 K, [Fe/H] = -0.13 plusmn 0.10). The light curve of the star obtained with the WASP-South and WASP-North instruments shows periodic transitlike features with a depth of about 1% and a duration of 0.10 day every 2.72 days. The presence of a transitlike feature in the light curve is confirmed using z -band photometry obtained with Faulkes Telescope North. High-resolution spectroscopy obtained with the Coralie spectrograph confirms the presence of a planetary mass companion. From a combined analysis of the spectroscopic and photometric data, assuming that the star is a typical main-sequence star, we estimate that the planet has a mass M$_p$ of 3.60 plusmn 0.07 M$_Jup$ and a radius R$_p$ = 1.19 plusmn 0.06 R$_Jup$. WASP-32 is one of a small group of hot Jupiters with masses greater than 3 M$_Jup$. We find that some stars with hot Jupiter companions and with masses M$_⋆$ ap 1.2 M$_⊙$, including WASP-32, are depleted in lithium and that the majority of these stars have lithium abundances similar to field stars.

AB - We report the discovery of a transiting planet orbiting the star TYC 2-1155-1. The star, WASP-32, is a moderately bright (V = 11.3) solar-type star (T$_eff$ = 6100 plusmn 100 K, [Fe/H] = -0.13 plusmn 0.10). The light curve of the star obtained with the WASP-South and WASP-North instruments shows periodic transitlike features with a depth of about 1% and a duration of 0.10 day every 2.72 days. The presence of a transitlike feature in the light curve is confirmed using z -band photometry obtained with Faulkes Telescope North. High-resolution spectroscopy obtained with the Coralie spectrograph confirms the presence of a planetary mass companion. From a combined analysis of the spectroscopic and photometric data, assuming that the star is a typical main-sequence star, we estimate that the planet has a mass M$_p$ of 3.60 plusmn 0.07 M$_Jup$ and a radius R$_p$ = 1.19 plusmn 0.06 R$_Jup$. WASP-32 is one of a small group of hot Jupiters with masses greater than 3 M$_Jup$. We find that some stars with hot Jupiter companions and with masses M$_⋆$ ap 1.2 M$_⊙$, including WASP-32, are depleted in lithium and that the majority of these stars have lithium abundances similar to field stars.

U2 - 10.1086/657658

DO - 10.1086/657658

M3 - Article

SN - 0004-6280

VL - 122

SP - 1465

JO - Publications of the Astronomical Society of the Pacific

JF - Publications of the Astronomical Society of the Pacific

ER -

WASP-32b: A Transiting Hot Jupiter Planet Orbiting a Lithium-Poor, Solar-Type Star

Abstract

Access to Document

Fingerprint

Cite this