WASP-37b: A 1.8 MJ 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. Hébrard, 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

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We report on the discovery of WASP-37b, a transiting hot Jupiter orbiting an mv = 12.7 G2-type dwarf, with a period of 3.577469 ± 0.000011 d, transit epoch T0 = 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 Mp = 1.80 ± 0.17 MJ and radius R p = 1.16-0.06 +0.07 RJ, yielding a mean density of 1.15-0.15 +0.12 ρJ. From a spectral analysis, we find that the host star has M* = 0.925 ± 0.120M⊙, R* = 1.003 ± 0.053 R⊙, Teff = 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 languageEnglish
JournalAstronomical Journal
Volume141
Issue number1
DOIs
Publication statusPublished - 1 Jan 2011
Externally publishedYes

Fingerprint

extrasolar planets
transit
universal time
stars
metal
Jupiter (planet)
Jupiter
metals
spectral analysis
metallicity
spectrum analysis
planets
planet
time measurement
radii

Keywords

  • Planetary systems
  • Stars: individual (WASP-37, GSC 00326-00658)
  • Techniques: photometric
  • Techniques: spectroscopic

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Simpson, E. K., Faedi, F., Barros, S. C. C., Brown, D. J. A., Cameron, A. C., Hebb, L., ... Wheatley, P. J. (2011). WASP-37b: A 1.8 MJ exoplanet transiting a metal-poor star. Astronomical Journal, 141(1). https://doi.org/10.1088/0004-6256/141/1/8

WASP-37b : A 1.8 MJ exoplanet transiting a metal-poor star. / Simpson, E. K.; Faedi, F.; Barros, S. C C; Brown, D. J A; Cameron, A. Collier; Hebb, L.; Pollacco, D.; Smalley, B.; Todd, I.; Butters, O. W.; Hébrard, G.; McCormac, J.; Miller, G. R M; Santerne, A.; Street, R. A.; Skillen, I.; Triaud, A. H M J; Anderson, D. R.; Bento, J.; Boisse, I.; Bouchy, F.; Enoch, B.; Haswell, C. A.; Hellier, C.; Holmes, S.; Horne, K.; Keenan, F. P.; Lister, T. A.; Maxted, P. F L; Moulds, V.; Moutou, C.; Norton, A. J.; Parley, N.; Pepe, F.; Queloz, D.; Segransan, D.; Smith, A. M S; Stempels, H. C.; Udry, S.; Watson, C. A.; West, R. G.; Wheatley, P. J.

In: Astronomical Journal, Vol. 141, No. 1, 01.01.2011.

Research output: Contribution to journalArticle

Simpson, EK, Faedi, F, Barros, SCC, Brown, DJA, Cameron, AC, Hebb, L, Pollacco, D, Smalley, B, Todd, I, Butters, OW, Hébrard, 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 MJ exoplanet transiting a metal-poor star', Astronomical Journal, vol. 141, no. 1. https://doi.org/10.1088/0004-6256/141/1/8
Simpson EK, Faedi F, Barros SCC, Brown DJA, Cameron AC, Hebb L et al. WASP-37b: A 1.8 MJ exoplanet transiting a metal-poor star. Astronomical Journal. 2011 Jan 1;141(1). https://doi.org/10.1088/0004-6256/141/1/8
Simpson, E. K. ; Faedi, F. ; Barros, S. C C ; Brown, D. J A ; Cameron, A. Collier ; Hebb, L. ; Pollacco, D. ; Smalley, B. ; Todd, I. ; Butters, O. W. ; Hébrard, G. ; McCormac, J. ; Miller, G. R M ; Santerne, A. ; Street, R. A. ; Skillen, I. ; Triaud, A. H M J ; Anderson, D. R. ; Bento, J. ; Boisse, I. ; Bouchy, F. ; Enoch, B. ; Haswell, C. A. ; Hellier, C. ; Holmes, S. ; Horne, K. ; Keenan, F. P. ; Lister, T. A. ; Maxted, P. F L ; Moulds, V. ; Moutou, C. ; Norton, A. J. ; Parley, N. ; Pepe, F. ; Queloz, D. ; Segransan, D. ; Smith, A. M S ; Stempels, H. C. ; Udry, S. ; Watson, C. A. ; West, R. G. ; Wheatley, P. J. / WASP-37b : A 1.8 MJ exoplanet transiting a metal-poor star. In: Astronomical Journal. 2011 ; Vol. 141, No. 1.
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abstract = "We report on the discovery of WASP-37b, a transiting hot Jupiter orbiting an mv = 12.7 G2-type dwarf, with a period of 3.577469 ± 0.000011 d, transit epoch T0 = 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 Mp = 1.80 ± 0.17 MJ and radius R p = 1.16-0.06 +0.07 RJ, yielding a mean density of 1.15-0.15 +0.12 ρJ. From a spectral analysis, we find that the host star has M* = 0.925 ± 0.120M⊙, R* = 1.003 ± 0.053 R⊙, Teff = 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.",
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T2 - A 1.8 MJ 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 - Hébrard, 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.

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N2 - We report on the discovery of WASP-37b, a transiting hot Jupiter orbiting an mv = 12.7 G2-type dwarf, with a period of 3.577469 ± 0.000011 d, transit epoch T0 = 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 Mp = 1.80 ± 0.17 MJ and radius R p = 1.16-0.06 +0.07 RJ, yielding a mean density of 1.15-0.15 +0.12 ρJ. From a spectral analysis, we find that the host star has M* = 0.925 ± 0.120M⊙, R* = 1.003 ± 0.053 R⊙, Teff = 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.

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

KW - Techniques: photometric

KW - Techniques: spectroscopic

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