All Outputs (7)

Pulsation versus metallicism in Am stars as revealed by LAMOST and WASP (2016)
Journal Article
Smalley, B., Antoci, V., L. Holdsworth, D., W. Kurtz, D., J. Murphy, S., De Cat, P., …J. Wheatley, P. (2017). Pulsation versus metallicism in Am stars as revealed by LAMOST and WASP. Monthly Notices of the Royal Astronomical Society, 465(3), 2662-2670. https://doi.org/10.1093/mnras/stw2903

We present the results of a study of a large sample of A and Am stars with spectral types from LAMOST and light curves from WASP. We find that, unlike normal A stars, d Sct pulsations in Am stars are mostly confined to the effective temperature range... Read More about Pulsation versus metallicism in Am stars as revealed by LAMOST and WASP.

Discovery of WASP-113b and WASP-114b, two inflated hot-Jupiters with contrasting densities (2016)
Journal Article
Hellier, & Smalley. (2016). Discovery of WASP-113b and WASP-114b, two inflated hot-Jupiters with contrasting densities. Astronomy and Astrophysics, https://doi.org/10.1051/0004-6361/201526517

Aims. We present the discovery and characterisation of the exoplanets WASP-113b and WASP-114b by the WASP surveys, SOPHIE and CORALIE. Methods. The planetary nature of the systems was established by performing follow-up photometric and spectroscop... Read More about Discovery of WASP-113b and WASP-114b, two inflated hot-Jupiters with contrasting densities.

Orbital and physical parameters of eclipsing binaries from the ASAS catalogue - IX. Spotted pairs with red giants (2016)
Journal Article
Hellier. (2016). Orbital and physical parameters of eclipsing binaries from the ASAS catalogue - IX. Spotted pairs with red giants. Monthly Notices of the Royal Astronomical Society, 2234 - 2249. https://doi.org/10.1093/mnras/stw1448

We present spectroscopic and photometric solutions for three spotted systems with red giant components. Absolute physical and orbital parameters for these double-lined detached eclipsing binary stars are presented for the first time. These were deriv... Read More about Orbital and physical parameters of eclipsing binaries from the ASAS catalogue - IX. Spotted pairs with red giants.

WASP-121 b: a hot Jupiter close to tidal disruption transiting an active F star (2016)
Journal Article
Hellier, Smalley, & Maxted. (2016). WASP-121 b: a hot Jupiter close to tidal disruption transiting an active F star. Monthly Notices of the Royal Astronomical Society, 4025 - 4043. https://doi.org/10.1093/mnras/stw522

We present the discovery by the WASP-South survey of WASP-121 b, a new remarkable short-period transiting hot Jupiter. The planet has a mass of 1.183+0.064-0.062MJup, a radius of 1.865 ± 0.044 RJup, and transits every 1.2749255+0.0000020-0.0000025 da... Read More about WASP-121 b: a hot Jupiter close to tidal disruption transiting an active F star.

STARSPOTS ON WASP-85 (2016)
Journal Article
Hellier. (2016). STARSPOTS ON WASP-85. Astronomical Journal, https://doi.org/10.3847/0004-6256/151/6/150

By analyzing K2 short-cadence observations, we detect starspots on WASP-85A, the host star of the hot Jupiter WASP-85Ab. The detection of recurring starspot occultation events indicates that the planet's orbit is aligned with the star's rotational ax... Read More about STARSPOTS ON WASP-85.

FORS2 observes a multi-epoch transmission spectrum of the hot Saturn-mass exoplanet WASP-49b (2016)
Journal Article
Hellier. (2016). FORS2 observes a multi-epoch transmission spectrum of the hot Saturn-mass exoplanet WASP-49b. Astronomy & Astrophysics, https://doi.org/10.1051/0004-6361/201527594

Context. Transmission spectroscopy has proven to be a useful tool for the study of exoplanet atmospheres, because the absorption and scattering signatures of the atmosphere manifest themselves as variations in the planetary transit depth. Several pla... Read More about FORS2 observes a multi-epoch transmission spectrum of the hot Saturn-mass exoplanet WASP-49b.

Hot Jupiters with relatives: discovery of additional planets in orbit around WASP-41 and WASP-47 (2016)
Journal Article
Hellier. (2016). Hot Jupiters with relatives: discovery of additional planets in orbit around WASP-41 and WASP-47. Astronomy & Astrophysics, https://doi.org/10.1051/0004-6361/201526965

We report the discovery of two additional planetary companions to WASP-41 and WASP-47. WASP-41 c is a planet of minimum mass 3.18 ± 0.20 MJup and eccentricity 0.29 ± 0.02, and it orbits in 421 ± 2 days. WASP-47 c is a planet of minimum mass 1.24 ± 0.... Read More about Hot Jupiters with relatives: discovery of additional planets in orbit around WASP-41 and WASP-47.