Outputs (183)

The discovery of WASP-151b, WASP-153b, WASP-156b: Insights on giant planet migration and the upper boundary of the Neptunian desert (2018)
Journal Article
Smalley, Hellier, & Maxted. (2018). The discovery of WASP-151b, WASP-153b, WASP-156b: Insights on giant planet migration and the upper boundary of the Neptunian desert. Astronomy & Astrophysics, https://doi.org/10.1051/0004-6361/201731735

To investigate the origin of the features discovered in the exoplanet population, the knowledge of exoplanets mass and radius with a good precision (less than or similar to 10%) is essential. To achieve this purpose the discovery of transiting exopla... Read More about The discovery of WASP-151b, WASP-153b, WASP-156b: Insights on giant planet migration and the upper boundary of the Neptunian desert.

Evolutionary Constraints on the Long-period Subdwarf B Binary PG 1018–047 (2018)
Journal Article
Maxted. (2018). Evolutionary Constraints on the Long-period Subdwarf B Binary PG 1018–047. Monthly Notices of the Royal Astronomical Society, 1018-1047. https://doi.org/10.1093/mnras/stx2755

We have revisited the sdB+K-star long-period binary PG 1018–047 based on 20 new high-resolution VLT/UVES spectra that provided regular coverage over a period of more than 26 months. We refine the period and establish that the orbit is significantly e... Read More about Evolutionary Constraints on the Long-period Subdwarf B Binary PG 1018–047.

qpower2 - a fast and accurate algorithm for the computation of exoplanet transit light curves with the power-2 limb-darkening law (2018)
Journal Article
Maxted. (2018). qpower2 - a fast and accurate algorithm for the computation of exoplanet transit light curves with the power-2 limb-darkening law. Astronomy & Astrophysics, A33 -?. https://doi.org/10.1051/0004-6361/201834563

Context. The power-2 law, I?( µ) = 1 - c(1-µa), accurately represents the limb-darkening profile for cool stars. It has been implemented in a few transit models to-date using numerical integration but there is as-yet no implementation of the power-2... Read More about qpower2 - a fast and accurate algorithm for the computation of exoplanet transit light curves with the power-2 limb-darkening law.

High-precision multi-wavelength eclipse photometry of the ultra-hot gas giant exoplanet WASP-103 b (2017)
Journal Article
Smalley, Hellier, & Maxted. (2017). High-precision multi-wavelength eclipse photometry of the ultra-hot gas giant exoplanet WASP-103 b. Monthly Notices of the Royal Astronomical Society, 2334-2351. https://doi.org/10.1093/mnras/stx2896

We present sixteen occultation and three transit light curves for the ultra-short period hot Jupiter WASP-103b, in addition to five new radial velocity measurements. We combine these observations with archival data and perform a global analysis of th... Read More about High-precision multi-wavelength eclipse photometry of the ultra-hot gas giant exoplanet WASP-103 b.

The SuperWASP catalogue of 4963 RR Lyr stars: identification of 983 Blazhko effect candidates (2017)
Journal Article
Greer, P., Payne, S., Norton, A., Maxted, P., Smalley, B., West, R., …Kolb, U. (2017). The SuperWASP catalogue of 4963 RR Lyr stars: identification of 983 Blazhko effect candidates. Astronomy & Astrophysics, A11. https://doi.org/10.1051/0004-6361/201630296

Aims. We set out to compile a catalogue of RRab pulsating variables in the SuperWASP archive and identify candidate Blazhko effect objects within this catalogue. We analysed their light curves and power spectra for correlations in their common charac... Read More about The SuperWASP catalogue of 4963 RR Lyr stars: identification of 983 Blazhko effect candidates.

The EBLM Project: IV. Spectroscopic orbits of over 100 eclipsing M dwarfs masquerading as transiting hot Jupiters (2017)
Journal Article
Smalley, Hellier, & Maxted. (2017). The EBLM Project: IV. Spectroscopic orbits of over 100 eclipsing M dwarfs masquerading as transiting hot Jupiters. Astronomy and Astrophysics, https://doi.org/10.1051/0004-6361/201730993

We present 2271 radial velocity measurements taken on 118 single-line binary stars, taken over eight years with the CORALIE spectrograph. The binaries consist of F/G/K primaries and M dwarf secondaries. They were initially discovered photometrically... Read More about The EBLM Project: IV. Spectroscopic orbits of over 100 eclipsing M dwarfs masquerading as transiting hot Jupiters.

The EBLM project - III. A Saturn-size low-mass star at the hydrogen-burning limit (2017)
Journal Article
Hellier, Smalley, & Maxted. (2017). The EBLM project - III. A Saturn-size low-mass star at the hydrogen-burning limit. Astronomy & Astrophysics, L6 -L6. https://doi.org/10.1051/0004-6361/201731107

We report the discovery of an eclipsing binary system with mass-ratio q ~ 0.07. After identifying a periodic photometric signal received by WASP, we obtained CORALIE spectroscopic radial velocities and follow-up light curves with the Euler and TRAPPI... Read More about The EBLM project - III. A Saturn-size low-mass star at the hydrogen-burning limit.

Emission lines in the atmosphere of the irradiated brown dwarf WD0137-349B (2017)
Journal Article
Longstaff, E., Casewell, S., Wynn, G., Maxted, P., & Helling, C. (2017). Emission lines in the atmosphere of the irradiated brown dwarf WD0137-349B. Monthly Notices of the Royal Astronomical Society, 471(2), 1728 - 1736. https://doi.org/10.1093/mnras/stx1786

We present new optical and near-infrared spectra of WD0137-349; a close white dwarf–brown dwarf non-interacting binary system with a period of ˜114 min. We have confirmed the presence of Ha emission and discovered He, Na, Mg, Si, K, Ca, Ti and Fe emi... Read More about Emission lines in the atmosphere of the irradiated brown dwarf WD0137-349B.

WASP-167b/KELT-13b: joint discovery of a hot Jupiter transiting a rapidly rotating F1V star (2017)
Journal Article
Temple, L., Hellier, C., Albrow, M., Anderson, D., Bayliss, D., Beatty, T., …Zhou, G. (2017). WASP-167b/KELT-13b: joint discovery of a hot Jupiter transiting a rapidly rotating F1V star. Monthly Notices of the Royal Astronomical Society, 471(3), 2743 - 2752. https://doi.org/10.1093/mnras/stx1729

We report the joint WASP/KELT discovery of WASP-167b/KELT-13b, a transiting hot Jupiter with a 2.02-d orbit around a V = 10.5, F1V star with [Fe/H] = 0.1 ± 0.1. The 1.5 RJup planet was confirmed by Doppler tomography of the stellar line profiles duri... Read More about WASP-167b/KELT-13b: joint discovery of a hot Jupiter transiting a rapidly rotating F1V star.

Rotation of Planet-Hosting Stars (2017)
Book Chapter
Maxted, P. (2017). Rotation of Planet-Hosting Stars. In Handbook of Exoplanets. Springer

The rotation rate of a star has important implications for the detectability, characterization, and stability of any planets that may be orbiting it. This chapter gives a brief overview of stellar rotation before describing the methods used to measur... Read More about Rotation of Planet-Hosting Stars.