WASP-41b: A Transiting Hot Jupiter Planet Orbiting a Magnetically Active G8V Star

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

doi:10.1086/660007

WASP-41b: A Transiting Hot Jupiter Planet Orbiting a Magnetically Active G8V Star

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

Physics and Astronomy

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Abstract

We report the discovery of a transiting planet with an orbital period of 3.05 days orbiting the star TYC 7247-587-1. The star, WASP-41, is a moderately bright G8 V star (V = 11.6) with a metallicity close to solar ([Fe/H] = -0.08 plusmn 0.09). The star shows evidence of moderate chromospheric activity, both from emission in the cores of the Ca ii H and K ines and photometric variability with a period of 18.4 days and an amplitude of about 1 We use a new method to show quantitatively that this periodic signal has a low false-alarm probability. The rotation period of the star implies a gyrochronological age for WASP-41 of 1.8 Gyr with an error of about 15 We have used a combined analysis of the available photometric and spectroscopic data to derive the mass and radius of the planet (0.92 plusmn 0.06 M$_Jup$, 1.20 plusmn 0.06 R$_Jup$). Further observations of WASP-41 can be used to explore the connections between the properties of hot Jupiter planets and the level of chromospheric activity in their host stars.

Original language	English
Pages (from-to)	547
Number of pages	1
Journal	Publications of the Astronomical Society of the Pacific
Volume	123
DOIs	https://doi.org/10.1086/660007
Publication status	Published - 1 May 2011

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Maxted, P. F. L., Anderson, D. R., Collier Cameron, A., Hellier, C., Queloz, D., Smalley, B., Street, R. A., Triaud, A. H. M. J., West, R. G., Gillon, M., Lister, T. A., Pepe, F., Pollacco, D., Ségransan, D., Smith, A. M. S., & Udry, S. (2011). WASP-41b: A Transiting Hot Jupiter Planet Orbiting a Magnetically Active G8V Star. Publications of the Astronomical Society of the Pacific, 123, 547. https://doi.org/10.1086/660007

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title = "WASP-41b: A Transiting Hot Jupiter Planet Orbiting a Magnetically Active G8V Star",

abstract = "We report the discovery of a transiting planet with an orbital period of 3.05 days orbiting the star TYC 7247-587-1. The star, WASP-41, is a moderately bright G8 V star (V = 11.6) with a metallicity close to solar ([Fe/H] = -0.08 plusmn 0.09). The star shows evidence of moderate chromospheric activity, both from emission in the cores of the Ca ii H and K ines and photometric variability with a period of 18.4 days and an amplitude of about 1 We use a new method to show quantitatively that this periodic signal has a low false-alarm probability. The rotation period of the star implies a gyrochronological age for WASP-41 of 1.8 Gyr with an error of about 15 We have used a combined analysis of the available photometric and spectroscopic data to derive the mass and radius of the planet (0.92 plusmn 0.06 M$_Jup$, 1.20 plusmn 0.06 R$_Jup$). Further observations of WASP-41 can be used to explore the connections between the properties of hot Jupiter planets and the level of chromospheric activity in their host stars. ",

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

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doi = "10.1086/660007",

language = "English",

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Maxted, PFL, Anderson, DR, Collier Cameron, A, Hellier, C, Queloz, D, Smalley, B, Street, RA, Triaud, AHMJ, West, RG, Gillon, M, Lister, TA, Pepe, F, Pollacco, D, Ségransan, D, Smith, AMS & Udry, S 2011, 'WASP-41b: A Transiting Hot Jupiter Planet Orbiting a Magnetically Active G8V Star', Publications of the Astronomical Society of the Pacific, vol. 123, pp. 547. https://doi.org/10.1086/660007

TY - JOUR

T1 - WASP-41b: A Transiting Hot Jupiter Planet Orbiting a Magnetically Active G8V Star

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

AU - Anderson, D.~R.

AU - Collier Cameron, A.

AU - Hellier, C.

AU - Queloz, D.

AU - Smalley, B.

AU - Street, R.~A.

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

AU - West, R.~G.

AU - Gillon, M.

AU - Lister, T.~A.

AU - Pepe, F.

AU - Pollacco, D.

AU - Ségransan, D.

AU - Smith, A.~M.~S.

AU - Udry, S.

PY - 2011/5/1

Y1 - 2011/5/1

N2 - We report the discovery of a transiting planet with an orbital period of 3.05 days orbiting the star TYC 7247-587-1. The star, WASP-41, is a moderately bright G8 V star (V = 11.6) with a metallicity close to solar ([Fe/H] = -0.08 plusmn 0.09). The star shows evidence of moderate chromospheric activity, both from emission in the cores of the Ca ii H and K ines and photometric variability with a period of 18.4 days and an amplitude of about 1 We use a new method to show quantitatively that this periodic signal has a low false-alarm probability. The rotation period of the star implies a gyrochronological age for WASP-41 of 1.8 Gyr with an error of about 15 We have used a combined analysis of the available photometric and spectroscopic data to derive the mass and radius of the planet (0.92 plusmn 0.06 M$_Jup$, 1.20 plusmn 0.06 R$_Jup$). Further observations of WASP-41 can be used to explore the connections between the properties of hot Jupiter planets and the level of chromospheric activity in their host stars.

AB - We report the discovery of a transiting planet with an orbital period of 3.05 days orbiting the star TYC 7247-587-1. The star, WASP-41, is a moderately bright G8 V star (V = 11.6) with a metallicity close to solar ([Fe/H] = -0.08 plusmn 0.09). The star shows evidence of moderate chromospheric activity, both from emission in the cores of the Ca ii H and K ines and photometric variability with a period of 18.4 days and an amplitude of about 1 We use a new method to show quantitatively that this periodic signal has a low false-alarm probability. The rotation period of the star implies a gyrochronological age for WASP-41 of 1.8 Gyr with an error of about 15 We have used a combined analysis of the available photometric and spectroscopic data to derive the mass and radius of the planet (0.92 plusmn 0.06 M$_Jup$, 1.20 plusmn 0.06 R$_Jup$). Further observations of WASP-41 can be used to explore the connections between the properties of hot Jupiter planets and the level of chromospheric activity in their host stars.

U2 - 10.1086/660007

DO - 10.1086/660007

M3 - Article

SN - 0004-6280

VL - 123

SP - 547

JO - Publications of the Astronomical Society of the Pacific

JF - Publications of the Astronomical Society of the Pacific

ER -

WASP-41b: A Transiting Hot Jupiter Planet Orbiting a Magnetically Active G8V Star

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