WASP-16b: A NEW JUPITER-LIKE PLANET TRANSITING A SOUTHERN SOLAR ANALOG

Journal Article · Sun Sep 20 00:00:00 EDT 2009 · Astrophysical Journal

DOI:https://doi.org/10.1088/0004-637X/703/1/752· OSTI ID:21371970

Lister, T A ^[1]; Anderson, D R; Smalley, B S; Wilson, D M; Bentley, S J; Hellier, C; Maxted, P F. L. ^[2]; Gillon, M; Mayor, M ^[3]; Hebb, L; Collier Cameron, A; Enoch, R; Horne, K ^[4]; West, R G ^[5]; Christian, D J; Joshi, Y C ^[6]; Haswell, C A ^[7]; Irwin, J ^[8]

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1. Las Cumbres Observatory, 6740 Cortona Drive Suite 102, Goleta, CA 93117 (United States)
2. Astrophysics Group, Keele University, Staffordshire, ST5 5BG (United Kingdom)
3. Observatoire de Geneve, Universite de Geneve, 51 Ch. des Maillettes, 1290 Sauverny (Switzerland)
4. SUPA, School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews, Fife KY16 9SS (United Kingdom)
5. Department of Physics and Astronomy, University of Leicester, Leicester, LE1 7RH (United Kingdom)
6. Astrophysics Research Centre, School of Mathematics and Physics, Queen's University, University Road, Belfast, BT7 1NN (United Kingdom)
7. Department of Physics and Astronomy, The Open University, Milton Keynes, MK7 6AA (United Kingdom)
8. Harvard-Smithsonian Center for Astrophysics, 60 Garden Street, Cambridge, MA 02138 (United States)

We report the discovery from WASP-South of a new Jupiter-like extrasolar planet, WASP-16b, which transits its solar analog host star every 3.12 days. Analysis of the transit photometry and radial velocity spectroscopic data leads to a planet with R{sub p} = 1.008 +- 0.071 R{sub Jup} and M{sub p} = 0.855 +- 0.059 M{sub Jup}, orbiting a host star with R {sub *} = 0.946 +- 0.054 R{sub sun} and M{sub *} = 1.022 +- 0.101 M{sub sun}. Comparison of the high resolution stellar spectrum with synthetic spectra and stellar evolution models indicates the host star is a near-solar metallicity ([Fe/H] =0.01 +- 0.10) solar analog (T{sub eff} = 5700 +- 150 K and log g = 4.5 +- 0.2) of intermediate age (tau = 2.3{sup +5.8}{sub -2.2} Gyr).

• OSTI ID: 21371970
• Journal Information: Astrophysical Journal, Vol. 703, Issue 1; Other Information: DOI: 10.1088/0004-637X/703/1/752; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ABUNDANCE
COMPARATIVE EVALUATIONS
JUPITER PLANET
PHOTOMETRY
RADIAL VELOCITY
STAR EVOLUTION
STARS
EVALUATION
EVOLUTION
PLANETS
VELOCITY