Discovery and characterization of WASP-6b, an inflated sub-Jupiter mass planet transiting a solar-type star

M. Gillon; D.~R. Anderson; A.~H.~M.~J. Triaud; C. Hellier; P.~F.~L. Maxted; D. Pollaco; D. Queloz; B. Smalley; R.~G. West; D.~M. Wilson; S.~J. Bentley; A. Collier Cameron; B. Enoch; L. Hebb; K. Horne; J. Irwin; Y.~C. Joshi; T.~A. Lister; M. Mayor; F. Pepe; N. Parley; D. Segransan; S. Udry; P.~J. Wheatley

doi:10.1051/0004-6361/200911749

Discovery and characterization of WASP-6b, an inflated sub-Jupiter mass planet transiting a solar-type star

M. Gillon
, D.~R. Anderson
, A.~H.~M.~J. Triaud
, C. Hellier
, P.~F.~L. Maxted
, D. Pollaco
, D. Queloz
, B. Smalley
, R.~G. West
, D.~M. Wilson
, S.~J. Bentley
, A. Collier Cameron
, B. Enoch
, L. Hebb
, K. Horne
, J. Irwin
, Y.~C. Joshi
, T.~A. Lister
, M. Mayor
, F. Pepe

N. Parley, D. Segransan, S. Udry, P.~J. Wheatley

Physics and Astronomy

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

60 Citations (Scopus)

Abstract

We report the discovery of WASP-6b, an inflated sub-Jupiter mass planet transiting every 3.3610060$^+ 0.0000022 $$_- 0.0000035 $ days a mildly metal-poor solar-type star of magnitude V = 11.9. A combined analysis of the WASP photometry, high-precision followup transit photometry and radial velocities yield a planetary mass M$_p$ = 0.503$^+0.019$$_-0.038$ M$_J$ and radius R$_p$ = 1.224$^+0.051$$_-0.052$ RJ, resulting in a density $$_p$ = 0.27 plusmn 0.05 $J. The mass and radius for the host star are Mast = 0.88$^+0.05$$_-0.08$ Msun and Rast = 0.870$^+0.025$$_-0.036$ Rsun. The non-zero orbital eccentricity e = 0.054+0.018$_-0.015$ that we measure suggests that the planet underwent a massive tidal heating 1 Gyr ago that could have contributed to its inflated radius. High-precision radial velocities obtained during a transit allow us to measure a sky-projected angle between the stellar spin and orbital axis $ = 11$^+14$$_-18$ deg. In addition to similar published measurements, this result favors a dominant migration mechanism based on tidal interactions with a protoplanetary disk. Based on data collected with the HARPS spectrograph at ESO La Silla Observatory in the programs 082.C-0040(E) and 082.C-0608. The photometric time-series and radial velocities (Tables 4, 5) used in this work are only available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/501/785

Original language	English
Pages (from-to)	785-792
Number of pages	8
Journal	Astronomy and Astrophysics
Volume	501
DOIs	https://doi.org/10.1051/0004-6361/200911749
Publication status	Published - 1 Jul 2009

Keywords

binaries: eclipsing, stars: individual: WASP-6, planetary systems, techniques: photometric, techniques: radial velocities, techniques: spectroscopic

Access to Document

10.1051/0004-6361/200911749

Cite this

Gillon, M., Anderson, D. R., Triaud, A. H. M. J., Hellier, C., Maxted, P. F. L., Pollaco, D., Queloz, D., Smalley, B., West, R. G., Wilson, D. M., Bentley, S. J., Collier Cameron, A., Enoch, B., Hebb, L., Horne, K., Irwin, J., Joshi, Y. C., Lister, T. A., Mayor, M., ... Wheatley, P. J. (2009). Discovery and characterization of WASP-6b, an inflated sub-Jupiter mass planet transiting a solar-type star. Astronomy and Astrophysics, 501, 785-792. https://doi.org/10.1051/0004-6361/200911749

@article{7c24b5059ad641cf968b39ab4a3f9544,

title = "Discovery and characterization of WASP-6b, an inflated sub-Jupiter mass planet transiting a solar-type star",

abstract = "We report the discovery of WASP-6b, an inflated sub-Jupiter mass planet transiting every 3.3610060\$\textasciicircum{}+ 0.0000022 \$\$\_- 0.0000035 \$ days a mildly metal-poor solar-type star of magnitude V = 11.9. A combined analysis of the WASP photometry, high-precision followup transit photometry and radial velocities yield a planetary mass M\$\_p\$ = 0.503\$\textasciicircum{}+0.019\$\$\_-0.038\$ M\$\_J\$ and radius R\$\_p\$ = 1.224\$\textasciicircum{}+0.051\$\$\_-0.052\$ RJ, resulting in a density \$\$\_p\$ = 0.27 plusmn 0.05 \$J. The mass and radius for the host star are Mast = 0.88\$\textasciicircum{}+0.05\$\$\_-0.08\$ Msun and Rast = 0.870\$\textasciicircum{}+0.025\$\$\_-0.036\$ Rsun. The non-zero orbital eccentricity e = 0.054+0.018\$\_-0.015\$ that we measure suggests that the planet underwent a massive tidal heating 1 Gyr ago that could have contributed to its inflated radius. High-precision radial velocities obtained during a transit allow us to measure a sky-projected angle between the stellar spin and orbital axis \$ = 11\$\textasciicircum{}+14\$\$\_-18\$ deg. In addition to similar published measurements, this result favors a dominant migration mechanism based on tidal interactions with a protoplanetary disk. Based on data collected with the HARPS spectrograph at ESO La Silla Observatory in the programs 082.C-0040(E) and 082.C-0608. The photometric time-series and radial velocities (Tables 4, 5) used in this work are only available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/501/785 ",

keywords = "binaries: eclipsing, stars: individual: WASP-6, planetary systems, techniques: photometric, techniques: radial velocities, techniques: spectroscopic",

author = "M. Gillon and D.\textasciitilde{}R. Anderson and A.\textasciitilde{}H.\textasciitilde{}M.\textasciitilde{}J. Triaud and C. Hellier and P.\textasciitilde{}F.\textasciitilde{}L. Maxted and D. Pollaco and D. Queloz and B. Smalley and R.\textasciitilde{}G. West and D.\textasciitilde{}M. Wilson and S.\textasciitilde{}J. Bentley and \{Collier Cameron\}, A. and B. Enoch and L. Hebb and K. Horne and J. Irwin and Y.\textasciitilde{}C. Joshi and T.\textasciitilde{}A. Lister and M. Mayor and F. Pepe and N. Parley and D. Segransan and S. Udry and P.\textasciitilde{}J. Wheatley",

year = "2009",

month = jul,

day = "1",

doi = "10.1051/0004-6361/200911749",

language = "English",

volume = "501",

pages = "785--792",

journal = "Astronomy and Astrophysics",

issn = "0004-6361",

publisher = "EDP Sciences",

}

Gillon, M, Anderson, DR, Triaud, AHMJ, Hellier, C, Maxted, PFL, Pollaco, D, Queloz, D, Smalley, B, West, RG, Wilson, DM, Bentley, SJ, Collier Cameron, A, Enoch, B, Hebb, L, Horne, K, Irwin, J, Joshi, YC, Lister, TA, Mayor, M, Pepe, F, Parley, N, Segransan, D, Udry, S & Wheatley, PJ 2009, 'Discovery and characterization of WASP-6b, an inflated sub-Jupiter mass planet transiting a solar-type star', Astronomy and Astrophysics, vol. 501, pp. 785-792. https://doi.org/10.1051/0004-6361/200911749

TY - JOUR

T1 - Discovery and characterization of WASP-6b, an inflated sub-Jupiter mass planet transiting a solar-type star

AU - Gillon, M.

AU - Anderson, D.~R.

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

AU - Hellier, C.

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

AU - Pollaco, D.

AU - Queloz, D.

AU - Smalley, B.

AU - West, R.~G.

AU - Wilson, D.~M.

AU - Bentley, S.~J.

AU - Collier Cameron, A.

AU - Enoch, B.

AU - Hebb, L.

AU - Horne, K.

AU - Irwin, J.

AU - Joshi, Y.~C.

AU - Lister, T.~A.

AU - Mayor, M.

AU - Pepe, F.

AU - Parley, N.

AU - Segransan, D.

AU - Udry, S.

AU - Wheatley, P.~J.

PY - 2009/7/1

Y1 - 2009/7/1

N2 - We report the discovery of WASP-6b, an inflated sub-Jupiter mass planet transiting every 3.3610060$^+ 0.0000022 $$_- 0.0000035 $ days a mildly metal-poor solar-type star of magnitude V = 11.9. A combined analysis of the WASP photometry, high-precision followup transit photometry and radial velocities yield a planetary mass M$_p$ = 0.503$^+0.019$$_-0.038$ M$_J$ and radius R$_p$ = 1.224$^+0.051$$_-0.052$ RJ, resulting in a density $$_p$ = 0.27 plusmn 0.05 $J. The mass and radius for the host star are Mast = 0.88$^+0.05$$_-0.08$ Msun and Rast = 0.870$^+0.025$$_-0.036$ Rsun. The non-zero orbital eccentricity e = 0.054+0.018$_-0.015$ that we measure suggests that the planet underwent a massive tidal heating 1 Gyr ago that could have contributed to its inflated radius. High-precision radial velocities obtained during a transit allow us to measure a sky-projected angle between the stellar spin and orbital axis $ = 11$^+14$$_-18$ deg. In addition to similar published measurements, this result favors a dominant migration mechanism based on tidal interactions with a protoplanetary disk. Based on data collected with the HARPS spectrograph at ESO La Silla Observatory in the programs 082.C-0040(E) and 082.C-0608. The photometric time-series and radial velocities (Tables 4, 5) used in this work are only available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/501/785

AB - We report the discovery of WASP-6b, an inflated sub-Jupiter mass planet transiting every 3.3610060$^+ 0.0000022 $$_- 0.0000035 $ days a mildly metal-poor solar-type star of magnitude V = 11.9. A combined analysis of the WASP photometry, high-precision followup transit photometry and radial velocities yield a planetary mass M$_p$ = 0.503$^+0.019$$_-0.038$ M$_J$ and radius R$_p$ = 1.224$^+0.051$$_-0.052$ RJ, resulting in a density $$_p$ = 0.27 plusmn 0.05 $J. The mass and radius for the host star are Mast = 0.88$^+0.05$$_-0.08$ Msun and Rast = 0.870$^+0.025$$_-0.036$ Rsun. The non-zero orbital eccentricity e = 0.054+0.018$_-0.015$ that we measure suggests that the planet underwent a massive tidal heating 1 Gyr ago that could have contributed to its inflated radius. High-precision radial velocities obtained during a transit allow us to measure a sky-projected angle between the stellar spin and orbital axis $ = 11$^+14$$_-18$ deg. In addition to similar published measurements, this result favors a dominant migration mechanism based on tidal interactions with a protoplanetary disk. Based on data collected with the HARPS spectrograph at ESO La Silla Observatory in the programs 082.C-0040(E) and 082.C-0608. The photometric time-series and radial velocities (Tables 4, 5) used in this work are only available in electronic form at the CDS via anonymous ftp to cdsarc.u-strasbg.fr (130.79.128.5) or via http://cdsweb.u-strasbg.fr/cgi-bin/qcat?J/A+A/501/785

KW - binaries: eclipsing, stars: individual: WASP-6, planetary systems, techniques: photometric, techniques: radial velocities, techniques: spectroscopic

U2 - 10.1051/0004-6361/200911749

DO - 10.1051/0004-6361/200911749

M3 - Article

SN - 0004-6361

VL - 501

SP - 785

EP - 792

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

ER -

Discovery and characterization of WASP-6b, an inflated sub-Jupiter mass planet transiting a solar-type star

Abstract

Keywords

Access to Document

Fingerprint

Cite this