WASP-37b: A 1.8 M-J EXOPLANET TRANSITING A METAL-POOR STAR

E. K. Simpson; F. Faedi; S. C. C. Barros; D. J. A. Brown; A. Collier Cameron; L. Hebb; D. Pollacco; B. Smalley; I. Todd; O. W. Butters; G. Hebrard; J. McCormac; G. R. M. Miller; A. Santerne; R. A. Street; I. Skillen; A. H. M. J. Triaud; D. R. Anderson; J. Bento; I. Boisse; F. Bouchy; B. Enoch; C. A. Haswell; C. Hellier; S. Holmes; K. Horne; F. P. Keenan; T. A. Lister; P. F. L. Maxted; V. Moulds; C. Moutou; A. J. Norton; N. Parley; F. Pepe; D. Queloz; D. Segransan; A. M. S. Smith; H. C. Stempels; S. Udry; C. A. Watson; R. G. West; P. J. Wheatley

doi:10.1088/0004-6256/141/1/8

WASP-37b: A 1.8 M-J EXOPLANET TRANSITING A METAL-POOR STAR

E. K. Simpson^*, F. Faedi, S. C. C. Barros, D. J. A. Brown, A. Collier Cameron, L. Hebb, D. Pollacco, B. Smalley, I. Todd, O. W. Butters, G. Hebrard, J. McCormac, G. R. M. Miller, A. Santerne, R. A. Street, I. Skillen, A. H. M. J. Triaud, D. R. Anderson, J. Bento, I. BoisseF. Bouchy, B. Enoch, C. A. Haswell, C. Hellier, S. Holmes, K. Horne, F. P. Keenan, T. A. Lister, P. F. L. Maxted, V. Moulds, C. Moutou, A. J. Norton, N. Parley, F. Pepe, D. Queloz, D. Segransan, A. M. S. Smith, H. C. Stempels, S. Udry, C. A. Watson, R. G. West, P. J. Wheatley

^*Corresponding author for this work

Bristol Medical School (PHS)

Research output: Contribution to journal › Article (Academic Journal) › peer-review

8 Citations (Scopus)

Abstract

We report on the discovery of WASP-37b, a transiting hot Jupiter orbiting an m(v) = 12.7 G2-type dwarf, with a period of 3.577469 +/- 0.000011 d, transit epoch T-0 = 2455338.6188 +/- 0.0006 (HJD; dates throughout the paper are given in Coordinated Universal Time (UTC)), and a transit duration 0.1304(-0.0017)(+0.0018) d. The planetary companion has a mass M-p = 1.80 +/- 0.17 M-J and radius R-p = 1.16(-0.06)(+0.07) R-J, yielding a mean density of 1.15(-0.15)(+0.12) rho(J). From a spectral analysis, we find that the host star has M-star = 0.925 +/- 0.120 M-circle dot, R-star = 1.003 +/- 0.053 R-circle dot, T-eff = 5800 +/- 150 K, and [Fe/H] = -0.40 +/- 0.12. WASP-37 is therefore one of the lowest metallicity stars to host a transiting planet.

Original language	English
Article number	8
Number of pages	7
Journal	Astronomical Journal
Volume	141
Issue number	1
DOIs	https://doi.org/10.1088/0004-6256/141/1/8
Publication status	Published - Jan 2011

Keywords

planetary systems
stars: individual (WASP-37, GSC 00326-00658)
techniques: photometric
techniques: spectroscopic
STELLAR ATMOSPHERE MODELS
LIMB-DARKENING LAW
EXTRASOLAR PLANETS
SURFACE GRAVITIES
GIANT PLANETS
PARENT STARS
LOW-DENSITY
PARAMETERS
SYSTEM
METALLICITY

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Simpson, E. K., Faedi, F., Barros, S. C. C., Brown, D. J. A., Cameron, A. C., Hebb, L., Pollacco, D., Smalley, B., Todd, I., Butters, O. W., Hebrard, G., McCormac, J., Miller, G. R. M., Santerne, A., Street, R. A., Skillen, I., Triaud, A. H. M. J., Anderson, D. R., Bento, J., ... Wheatley, P. J. (2011). WASP-37b: A 1.8 M-J EXOPLANET TRANSITING A METAL-POOR STAR. Astronomical Journal, 141(1), Article 8. https://doi.org/10.1088/0004-6256/141/1/8

@article{06190bad6ad442bdb730a10f5e3b8d60,

title = "WASP-37b: A 1.8 M-J EXOPLANET TRANSITING A METAL-POOR STAR",

abstract = "We report on the discovery of WASP-37b, a transiting hot Jupiter orbiting an m(v) = 12.7 G2-type dwarf, with a period of 3.577469 +/- 0.000011 d, transit epoch T-0 = 2455338.6188 +/- 0.0006 (HJD; dates throughout the paper are given in Coordinated Universal Time (UTC)), and a transit duration 0.1304(-0.0017)(+0.0018) d. The planetary companion has a mass M-p = 1.80 +/- 0.17 M-J and radius R-p = 1.16(-0.06)(+0.07) R-J, yielding a mean density of 1.15(-0.15)(+0.12) rho(J). From a spectral analysis, we find that the host star has M-star = 0.925 +/- 0.120 M-circle dot, R-star = 1.003 +/- 0.053 R-circle dot, T-eff = 5800 +/- 150 K, and [Fe/H] = -0.40 +/- 0.12. WASP-37 is therefore one of the lowest metallicity stars to host a transiting planet.",

keywords = "planetary systems, stars: individual (WASP-37, GSC 00326-00658), techniques: photometric, techniques: spectroscopic, STELLAR ATMOSPHERE MODELS, LIMB-DARKENING LAW, EXTRASOLAR PLANETS, SURFACE GRAVITIES, GIANT PLANETS, PARENT STARS, LOW-DENSITY, PARAMETERS, SYSTEM, METALLICITY",

author = "Simpson, {E. K.} and F. Faedi and Barros, {S. C. C.} and Brown, {D. J. A.} and Cameron, {A. Collier} and L. Hebb and D. Pollacco and B. Smalley and I. Todd and Butters, {O. W.} and G. Hebrard and J. McCormac and Miller, {G. R. M.} and A. Santerne and Street, {R. A.} and I. Skillen and Triaud, {A. H. M. J.} and Anderson, {D. R.} and J. Bento and I. Boisse and F. Bouchy and B. Enoch and Haswell, {C. A.} and C. Hellier and S. Holmes and K. Horne and Keenan, {F. P.} and Lister, {T. A.} and Maxted, {P. F. L.} and V. Moulds and C. Moutou and Norton, {A. J.} and N. Parley and F. Pepe and D. Queloz and D. Segransan and Smith, {A. M. S.} and Stempels, {H. C.} and S. Udry and Watson, {C. A.} and West, {R. G.} and Wheatley, {P. J.}",

year = "2011",

month = jan,

doi = "10.1088/0004-6256/141/1/8",

language = "English",

volume = "141",

journal = "Astronomical Journal",

issn = "0004-6256",

publisher = "American Astronomical Society",

number = "1",

}

Simpson, EK, Faedi, F, Barros, SCC, Brown, DJA, Cameron, AC, Hebb, L, Pollacco, D, Smalley, B, Todd, I, Butters, OW, Hebrard, G, McCormac, J, Miller, GRM, Santerne, A, Street, RA, Skillen, I, Triaud, AHMJ, Anderson, DR, Bento, J, Boisse, I, Bouchy, F, Enoch, B, Haswell, CA, Hellier, C, Holmes, S, Horne, K, Keenan, FP, Lister, TA, Maxted, PFL, Moulds, V, Moutou, C, Norton, AJ, Parley, N, Pepe, F, Queloz, D, Segransan, D, Smith, AMS, Stempels, HC, Udry, S, Watson, CA, West, RG & Wheatley, PJ 2011, 'WASP-37b: A 1.8 M-J EXOPLANET TRANSITING A METAL-POOR STAR', Astronomical Journal, vol. 141, no. 1, 8. https://doi.org/10.1088/0004-6256/141/1/8

TY - JOUR

T1 - WASP-37b: A 1.8 M-J EXOPLANET TRANSITING A METAL-POOR STAR

AU - Simpson, E. K.

AU - Faedi, F.

AU - Barros, S. C. C.

AU - Brown, D. J. A.

AU - Cameron, A. Collier

AU - Hebb, L.

AU - Pollacco, D.

AU - Smalley, B.

AU - Todd, I.

AU - Butters, O. W.

AU - Hebrard, G.

AU - McCormac, J.

AU - Miller, G. R. M.

AU - Santerne, A.

AU - Street, R. A.

AU - Skillen, I.

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

AU - Anderson, D. R.

AU - Bento, J.

AU - Boisse, I.

AU - Bouchy, F.

AU - Enoch, B.

AU - Haswell, C. A.

AU - Hellier, C.

AU - Holmes, S.

AU - Horne, K.

AU - Keenan, F. P.

AU - Lister, T. A.

AU - Maxted, P. F. L.

AU - Moulds, V.

AU - Moutou, C.

AU - Norton, A. J.

AU - Parley, N.

AU - Pepe, F.

AU - Queloz, D.

AU - Segransan, D.

AU - Smith, A. M. S.

AU - Stempels, H. C.

AU - Udry, S.

AU - Watson, C. A.

AU - West, R. G.

AU - Wheatley, P. J.

PY - 2011/1

Y1 - 2011/1

N2 - We report on the discovery of WASP-37b, a transiting hot Jupiter orbiting an m(v) = 12.7 G2-type dwarf, with a period of 3.577469 +/- 0.000011 d, transit epoch T-0 = 2455338.6188 +/- 0.0006 (HJD; dates throughout the paper are given in Coordinated Universal Time (UTC)), and a transit duration 0.1304(-0.0017)(+0.0018) d. The planetary companion has a mass M-p = 1.80 +/- 0.17 M-J and radius R-p = 1.16(-0.06)(+0.07) R-J, yielding a mean density of 1.15(-0.15)(+0.12) rho(J). From a spectral analysis, we find that the host star has M-star = 0.925 +/- 0.120 M-circle dot, R-star = 1.003 +/- 0.053 R-circle dot, T-eff = 5800 +/- 150 K, and [Fe/H] = -0.40 +/- 0.12. WASP-37 is therefore one of the lowest metallicity stars to host a transiting planet.

AB - We report on the discovery of WASP-37b, a transiting hot Jupiter orbiting an m(v) = 12.7 G2-type dwarf, with a period of 3.577469 +/- 0.000011 d, transit epoch T-0 = 2455338.6188 +/- 0.0006 (HJD; dates throughout the paper are given in Coordinated Universal Time (UTC)), and a transit duration 0.1304(-0.0017)(+0.0018) d. The planetary companion has a mass M-p = 1.80 +/- 0.17 M-J and radius R-p = 1.16(-0.06)(+0.07) R-J, yielding a mean density of 1.15(-0.15)(+0.12) rho(J). From a spectral analysis, we find that the host star has M-star = 0.925 +/- 0.120 M-circle dot, R-star = 1.003 +/- 0.053 R-circle dot, T-eff = 5800 +/- 150 K, and [Fe/H] = -0.40 +/- 0.12. WASP-37 is therefore one of the lowest metallicity stars to host a transiting planet.

KW - planetary systems

KW - stars: individual (WASP-37, GSC 00326-00658)

KW - techniques: photometric

KW - techniques: spectroscopic

KW - STELLAR ATMOSPHERE MODELS

KW - LIMB-DARKENING LAW

KW - EXTRASOLAR PLANETS

KW - SURFACE GRAVITIES

KW - GIANT PLANETS

KW - PARENT STARS

KW - LOW-DENSITY

KW - PARAMETERS

KW - SYSTEM

KW - METALLICITY

U2 - 10.1088/0004-6256/141/1/8

DO - 10.1088/0004-6256/141/1/8

M3 - Article (Academic Journal)

SN - 0004-6256

VL - 141

JO - Astronomical Journal

JF - Astronomical Journal

IS - 1

M1 - 8

ER -

WASP-37b: A 1.8 M-J EXOPLANET TRANSITING A METAL-POOR STAR

Abstract

Keywords

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