All Outputs (215)

WASP-92b, WASP-93b and WASP-118b: three new transiting close-in giant planets (2016)
Journal Article
Hay, K., Collier-Cameron, A., Doyle, A., Hébrard, G., Skillen, I., Anderson, D., …Wilson, P. (2016). WASP-92b, WASP-93b and WASP-118b: three new transiting close-in giant planets. Monthly Notices of the Royal Astronomical Society, 463(3), 3276 - 3289. https://doi.org/10.1093/mnras/stw2090

We present the discovery of three new transiting giant planets, first detected with the WASP telescopes, and establish their planetary nature with follow up spectroscopy and ground-based photometric light curves. WASP-92 is an F7 star, with a moderat... Read More about WASP-92b, WASP-93b and WASP-118b: three new transiting close-in giant planets.

WASP-86b and WASP-102b: super-dense versus bloated planets (2016)
Journal Article
Smalley, Hellier, & Maxted. (2016). WASP-86b and WASP-102b: super-dense versus bloated planets. arXiv,

We report the discovery of two transiting planetary systems: a super dense, sub-Jupiter mass planet WASP-86b (Mpl = 0.82 ± 0.06 MJ; Rpl = 0.63 ± 0.01 RJ), and a bloated, Saturn-like planet WASP-102b (Mpl = 0.62 ± 0.04 MJ; Rpl = 1.27 ± 0.03 RJ). They... Read More about WASP-86b and WASP-102b: super-dense versus bloated planets.

Absolute parameters for AI Phoenicis using WASP photometry (2016)
Journal Article
Maxted, & Hellier. (2016). Absolute parameters for AI Phoenicis using WASP photometry. Astronomy & Astrophysics, https://doi.org/10.1051/0004-6361/201628581

Context. AI Phe is a double-lined, detached eclipsing binary, in which a K-type sub-giant star totally eclipses its main-sequence companion every 24.6 days. This configuration makes AI Phe ideal for testing stellar evolutionary models. Difficulties i... Read More about Absolute parameters for AI Phoenicis using WASP photometry.

ELLC - a fast, flexible light curve model for detached eclipsing binary stars and transiting exoplanets (2016)
Journal Article
Maxted, P. (2016). ELLC - a fast, flexible light curve model for detached eclipsing binary stars and transiting exoplanets. Astronomy & Astrophysics, 591, Article A111. https://doi.org/10.1051/0004-6361/201628579

Very high quality light curves are now available for thousands of detached eclipsing binary stars and transiting exoplanet systems as a result of surveys for transiting exoplanets and other large-scale photometric surveys. I have developed a binary s... Read More about ELLC - a fast, flexible light curve model for detached eclipsing binary stars and transiting exoplanets.

Five transiting hot Jupiters discovered using WASP-South, Euler and TRAPPIST: WASP-119 b, WASP-124 b, WASP-126 b, WASP-129 b and WASP-133 b (2016)
Journal Article
Maxted, P., Anderson, D., Collier Cameron, A., Delrez, L., Gillon, M., Hellier, C., …West, R. (2016). Five transiting hot Jupiters discovered using WASP-South, Euler and TRAPPIST: WASP-119 b, WASP-124 b, WASP-126 b, WASP-129 b and WASP-133 b. Astronomy and Astrophysics, 591, Article A55. https://doi.org/10.1051/0004-6361/201628250

We have used photometry from the WASP-South instrument to identify 5 stars showing planet-like transits in their light curves. The planetary nature of the companions to these stars has been confirmed using photometry from the EulerCam instrument on t... Read More about Five transiting hot Jupiters discovered using WASP-South, Euler and TRAPPIST: WASP-119 b, WASP-124 b, WASP-126 b, WASP-129 b and WASP-133 b.

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.

WASP-120 b, WASP-122 b, and WASP-123 b: Three Newly Discovered Planets from the WASP-South Survey (2016)
Journal Article
Turner, O., Anderson, D., Collier Cameron, A., Delrez, L., Evans, D., Gillon, M., …West, R. (2016). WASP-120 b, WASP-122 b, and WASP-123 b: Three Newly Discovered Planets from the WASP-South Survey. Publications of the Astronomical Society of the Pacific, 128, Article 064401. https://doi.org/10.1088/1538-3873/128/964/064401

We present the discovery by the WASP-South survey of three planets transiting moderately bright stars (V ˜ 11). WASP-120 b is a massive (4.85 M Jup ) planet in a 3.6-day orbit that we find likely to be eccentric around an F5 star. WASP-122 b is a hot... Read More about WASP-120 b, WASP-122 b, and WASP-123 b: Three Newly Discovered Planets from the WASP-South Survey.

High-resolution Imaging of Transiting Extrasolar Planetary systems (HITEP) I. Lucky imaging observations of 101 systems in the southern hemisphere (2016)
Journal Article
Evans, D., Southworth, J., Maxted, P., Skottfelt, J., Hundertmark, M., Jørgensen, U., …Wertz, O. (2016). High-resolution Imaging of Transiting Extrasolar Planetary systems (HITEP) I. Lucky imaging observations of 101 systems in the southern hemisphere. Astronomy & Astrophysics, 589, A58. https://doi.org/10.1051/0004-6361/201527970

Context. Wide binaries are a potential pathway for the formation of hot Jupiters. The binary fraction among host stars is an important discriminator between competing formation theories, but has not been well characterised. Additionally, contaminatin... Read More about High-resolution Imaging of Transiting Extrasolar Planetary systems (HITEP) I. Lucky imaging observations of 101 systems in the southern hemisphere.

WASP-135b: A Highly Irradiated, Inflated Hot Jupiter Orbiting a G5V Star (2016)
Journal Article
Spake, J. J., Brown, D. J. A., Doyle, A. P., Hébrard, G., McCormac, J., Armstrong, D. J., …Wheatley, P. J. (2016). WASP-135b: A Highly Irradiated, Inflated Hot Jupiter Orbiting a G5V Star. Publications of the Astronomical Society of the Pacific, 128(960), 024401. https://doi.org/10.1088/1538-3873/128/960/024401

We report the discovery of a new transiting planet from the WASP survey. WASP-135b is a hot Jupiter with radius 1.30 ± 0.09 RJup, mass 1.90 ± 0.08 MJup, and an orbital period of 1.401 days. Its host is a Sun-like star, with a G5 spectral type and a m... Read More about WASP-135b: A Highly Irradiated, Inflated Hot Jupiter Orbiting a G5V Star.

Three irradiated and bloated hot Jupiters: WASP-76b, WASP-82b, and WASP-90b (2016)
Journal Article
West, R., Almenara, J., Anderson, D., Bouchy, F., Brown, D., Collier Cameron, A., …Udry, S. (2016). Three irradiated and bloated hot Jupiters: WASP-76b, WASP-82b, and WASP-90b. Astronomy & Astrophysics, 585, Article A126. https://doi.org/10.1051/0004-6361/201527276

We report on three new transiting hot Jupiter planets, discovered from the WASP surveys, which we combine with radial velocities from OHP/SOPHIE and Euler/CORALIE and photometry from Euler and TRAPPIST. The planets WASP-76b, WASP-82b, and WASP-90b ar... Read More about Three irradiated and bloated hot Jupiters: WASP-76b, WASP-82b, and WASP-90b.

The Population of White Dwarf Binaries with Hot Subdwarf Companions (2015)
Journal Article
Geier, S., Kupfer, T., Heber, U., Barlow, B. . N., Maxted, P. . F. . L., Heuser, C., …Gaensicke, B. . T. (2015). The Population of White Dwarf Binaries with Hot Subdwarf Companions. Astronomical Society of the Pacific Conference Series, 493,

The EChO science case (2015)
Journal Article
Maxted. (2015). The EChO science case. Experimental Astronomy, 329 - 391. https://doi.org/10.1007/s10686-015-9484-8

The discovery of almost two thousand exoplanets has revealed an unexpectedly diverse planet population. We see gas giants in few-day orbits, whole multi-planet systems within the orbit of Mercury, and new populations of planets with masses between th... Read More about The EChO science case.

The Araucaria project. Precise physical parameters of the eclipsing binary IO Aquarii (2015)
Journal Article
Maxted. (2015). The Araucaria project. Precise physical parameters of the eclipsing binary IO Aquarii. Astronomy & Astrophysics, https://doi.org/10.1051/0004-6361/201526211

Aims. Our aim is to precisely measure the physical parameters of the eclipsing binary IO Aqr and derive a distance to this system by applying a surface brightness – colour relation. Our motivation is to combine these parameters with future precise di... Read More about The Araucaria project. Precise physical parameters of the eclipsing binary IO Aquarii.

A New sdo plus DM Binary With Extreme Eclipses And Reflection Effect (2015)
Journal Article
Derekas, A., Németh, P., Southworth, J., Borkovits, T., Sárneczky, K., Pál, A., …Kriskovics, L. (2015). A New sdo plus DM Binary With Extreme Eclipses And Reflection Effect. Astrophysical Journal, 808(2), Article 179. https://doi.org/10.1088/0004-637X/808/2/179

We report the discovery of a new totally eclipsing binary (R.A. = ${06}^{{\rm{h}}}{40}^{{\rm{m}}}{29}^{{\rm{s}}}11$; decl. = +38°56'52''2; J = 2000.0; Rmax = 17.2 mag) with an sdO primary and a strongly irradiated red dwarf companion. It has an orbit... Read More about A New sdo plus DM Binary With Extreme Eclipses And Reflection Effect.

WASP-80b has a dayside within the T-dwarf range (2015)
Journal Article
Maxted, Smalley, & Hellier. (2015). WASP-80b has a dayside within the T-dwarf range. Monthly Notices of the Royal Astronomical Society, 2279 -2290. https://doi.org/10.1093/mnras/stv706

WASP-80b is a missing link in the study of exoatmospheres. It falls between the warm Neptunes and the hot Jupiters and is amenable for characterization, thanks to its host star's properties. We observed the planet through transit and during occultati... Read More about WASP-80b has a dayside within the T-dwarf range.

A kinematically unbiased search for nearby young stars in the Northern hemisphere selected using SuperWASP rotation periods (2015)
Journal Article
Binks, A., Jeffries, R., & Maxted, P. (2015). A kinematically unbiased search for nearby young stars in the Northern hemisphere selected using SuperWASP rotation periods. Monthly Notices of the Royal Astronomical Society, 452(1), 173-192. https://doi.org/10.1093/mnras/stv1309

We present a kinematically-unbiased search to identify young, nearby low-mass members of kinematic moving groups (MGs). Objects with both rotation periods shorter than 5 days in the SuperWASP All-Sky Survey and X-ray counterparts in the ROSAT All-Sky... Read More about A kinematically unbiased search for nearby young stars in the Northern hemisphere selected using SuperWASP rotation periods.

Erratum: Radial velocity measurements of Subdwarf B stars: Table 1. (2015)
Journal Article
Copperwheat, C. M., Morales-Rueda, L., Marsh, T. R., Maxted, P. F. L., & Heber, U. (2015). Erratum: Radial velocity measurements of Subdwarf B stars: Table 1. Monthly Notices of the Royal Astronomical Society, 451(4), 4412-4412. https://doi.org/10.1093/mnras/stv1248

This is a correction to: Monthly Notices of the Royal Astronomical Society, Volume 415, Issue 2, August 2011, Pages 1381–1395, https://doi.org/10.1111/j.1365-2966.2011.18786.x

Precise mass and radius measurements for the components of the bright solar-type eclipsing binary star V1094 Tau (2015)
Journal Article
Maxted, P., Hutcheon, R., Torres, G., Lacy, C., Southworth, J., Smalley, B., …Clausen, J. (2015). Precise mass and radius measurements for the components of the bright solar-type eclipsing binary star V1094 Tau. Astronomy & Astrophysics, 578, Article A25. https://doi.org/10.1051/0004-6361/201525873

V1094 Tau is bright eclipsing binary star with an orbital period close to 9 days containing two stars similar to the Sun. Our aim is to test models of Sun-like stars using precise and accurate mass and radius measurements for both stars in V1094 Tau.... Read More about Precise mass and radius measurements for the components of the bright solar-type eclipsing binary star V1094 Tau.

A comparison of gyrochronological and isochronal age estimates for transiting exoplanet host stars (2015)
Journal Article
Maxted, P., Serenelli, A., & Southworth, J. (2015). A comparison of gyrochronological and isochronal age estimates for transiting exoplanet host stars. Astronomy & Astrophysics, 577, Article A90. https://doi.org/10.1051/0004-6361/201525774

Previous studies suggest that tidal interactions may be responsible for discrepancies between the ages of exoplanet host stars estimated using stellar models (isochronal ages) and age estimates based on the stars' rotation periods (gyrochronological... Read More about A comparison of gyrochronological and isochronal age estimates for transiting exoplanet host stars.

The catalogue of radial velocity variable hot subluminous stars from the MUCHFUSS project (2015)
Journal Article
Maxted. (2015). The catalogue of radial velocity variable hot subluminous stars from the MUCHFUSS project. Astronomy & Astrophysics, https://doi.org/10.1051/0004-6361/201525666

The project Massive Unseen Companions to Hot Faint Underluminous Stars from SDSS (MUCHFUSS) aims to find sdBs with compact companions such as massive white dwarfs, neutron stars, or black holes. Here we provide classifications, atmospheric parameters... Read More about The catalogue of radial velocity variable hot subluminous stars from the MUCHFUSS project.