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The formation of EL CVn-type binaries (2017)
Journal Article
Maxted. (2017). The formation of EL CVn-type binaries. Monthly Notices of the Royal Astronomical Society, 1874 -1889. https://doi.org/10.1093/mnras/stx115

EL CVn-type binaries are eclipsing binaries that contain an A- or F-type dwarf star and a very low mass (~0.2?M?) helium white dwarf precursor (proto-He WD). A number of such objects have been discovered in the Wide Angle Search for Planets and Keple... Read More about The formation of EL CVn-type binaries.

The Surface Brightness-color Relations Based on Eclipsing Binary Stars: Toward Precision Better than 1% in Angular Diameter Predictions (2017)
Journal Article
Maxted. (2017). The Surface Brightness-color Relations Based on Eclipsing Binary Stars: Toward Precision Better than 1% in Angular Diameter Predictions. Astrophysical Journal, https://doi.org/10.3847/1538-4357/aa5d56

In this study we investigate the calibration of surface brightness–color (SBC) relations based solely on eclipsing binary stars. We selected a sample of 35 detached eclipsing binaries with trigonometric parallaxes from Gaia DR1 or Hipparcos whose abs... Read More about The Surface Brightness-color Relations Based on Eclipsing Binary Stars: Toward Precision Better than 1% in Angular Diameter Predictions.

From Dense Hot Jupiter to Low Density Neptune: The Discovery of WASP-127b, WASP-136b and WASP-138b (2017)
Journal Article
Lam, K., Faedi, F., Brown, D., Anderson, D., Delrez, L., Gillon, M., …Wheatley, P. (2017). From Dense Hot Jupiter to Low Density Neptune: The Discovery of WASP-127b, WASP-136b and WASP-138b. Astronomy and Astrophysics, 599, Article A3. https://doi.org/10.1051/0004-6361/201629403

We report three newly discovered exoplanets from the SuperWASP survey. WASP-127b is a heavily inflated super-Neptune of mass 0.18±0.02 MJ and radius 1.37±0.04 RJ. This is one of the least massive planets discovered by the WASP project. It orbits a br... Read More about From Dense Hot Jupiter to Low Density Neptune: The Discovery of WASP-127b, WASP-136b and WASP-138b.

Peculiar architectures for the WASP-53 and WASP-81 planet-hosting systems (2017)
Journal Article
Triaud, A. H., Neveu-VanMalle, M., Lendl, M., Anderson, D. R., Collier Cameron, A., Delrez, L., …West, R. (2017). Peculiar architectures for the WASP-53 and WASP-81 planet-hosting systems. Monthly Notices of the Royal Astronomical Society, 467(2), 1714 - 1733. https://doi.org/10.1093/mnras/stx154

We report the detection of two new systems containing transiting planets. Both were identified by WASP as worthy transiting planet candidates. Radial velocity observations quickly verified that the photometric signals were indeed produced by two tran... Read More about Peculiar architectures for the WASP-53 and WASP-81 planet-hosting systems.

WASP-South transiting exoplanets: WASP-130b, WASP-131b, WASP-132b, WASP-139b, WASP-140b, WASP-141b and WASP-142b (2016)
Journal Article
Hellier, C., Anderson, D., Collier Cameron, A., Delrez, L., Gillon, M., Jehin, E., …West, R. (2017). WASP-South transiting exoplanets: WASP-130b, WASP-131b, WASP-132b, WASP-139b, WASP-140b, WASP-141b and WASP-142b. Monthly Notices of the Royal Astronomical Society, 465(3), 3693-3707. https://doi.org/10.1093/mnras/stw3005

We describe seven exoplanets transiting stars of brightness V = 10.1–12.4. WASP-130b is a ‘warm Jupiter’ having an orbital period of 11.6 d around a metal-rich G6 star. Its mass and radius (1.23 ± 0.04 MJup and 0.89 ± 0.03 RJup) support the trend tha... Read More about WASP-South transiting exoplanets: WASP-130b, WASP-131b, WASP-132b, WASP-139b, WASP-140b, WASP-141b and WASP-142b.

WASP-157b, a Transiting Hot Jupiter Observed with K2 (2016)
Journal Article
Močnik, T., Anderson, D., Brown, D., Collier Cameron, A., Delrez, L., Gillon, M., …West, R. (2016). WASP-157b, a Transiting Hot Jupiter Observed with K2. Publications of the Astronomical Society of the Pacific, 128(970), Article 124403. https://doi.org/10.1088/1538-3873/128/970/124403

We announce the discovery of the transiting hot Jupiter WASP-157b in a 3.95-d orbit around a V = 12.9 G2 main-sequence star. This moderately inflated planet has a Saturn-like density, with a mass of 0.57 ± 0.10 MJup and a radius of 1.06 ± 0.05 RJup.... Read More about WASP-157b, a Transiting Hot Jupiter Observed with K2.

A solar twin in the eclipsing binary LL Aquarii (2016)
Journal Article
Graczyk, D., Smolec, R., Pavlovski, K., Southworth, J., Pietrzyński, G., Maxted, P., …Anderson, R. (2016). A solar twin in the eclipsing binary LL Aquarii. Astronomy & Astrophysics, 594, Article A92. https://doi.org/10.1051/0004-6361/201628918

Aims. In the course of a project to study eclipsing binary stars in vinicity of the Sun, we found that the cooler component of LL Aqr is a solar twin candidate. This is the first known star with properties of a solar twin existing in a non-interactin... Read More about A solar twin in the eclipsing binary LL Aquarii.

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.

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-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,

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.

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.