Three WASP-South transiting exoplanets: WASP-74b, WASP-83b & WASP-89b

Hellier, Coel; Anderson, D.R.; Collier Cameron, A.; Delrez, L.; Gillon, M.; Jehin, E.; Lendl, M.; Maxted, Pierre; Pepe, F.; Pollacco, D.; Queloz, D.; Ségransan, D.; Smalley, Barry; Smith, A.M.S.; Southworth, John; Triaud, A.H.M.J.; Turner, O.D.; Udry, S.; West, R.G.

doi:10.1088/0004-6256/150/1/18

A solar twin in the eclipsing binary LL Aquarii (2016)
Journal Article
Graczyk, D., Smolec, R., Pavlovski, K., Southworth, J., Pietrzyński, G., Maxted, P., Konorski, P., Gieren, W., Pilecki, B., Taormina, M., Suchomska, K., Karczmarek, P., Górski, M., Wielgórski, 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., Barros, S., Brown, D., Bouchy, F., Busuttil, R., Delorme, P., Delrez, L., Demangeon, O., Díaz, R., Gillon, M., Gómez Maqueo Chew, Y., Gonzàlez, E., Hellier, C., Holmes, S., Jarvis, J., …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., Jehin, E., Lendl, M., -VanMalle, M., Pepe, F., Pollacco, D., Queloz, D., Ségransan, D., Smalley, B., Smith, A., Southworth, J., Triaud, A., Udry, S., Wagg, T., & 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., Hellier, C., Jehin, E., Lendl, M., Maxted, P. F. L., Pepe, F., Pollacco, D., Queloz, D., Ségransan, D., Smalley, B., Smith, A., Triaud, A., Udry, S., & 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., Dominik, M., Alsubai, K., Andersen, M., Bozza, V., Bramich, D., Burgdorf, M., Ciceri, S., D’Ago, G., Figuera Jaimes, R., Gu, S.-H., Haugbøll, T., Hinse, T., JuncheN. Kains, D., Kerins, E., …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., Pollacco, D., Chew, Y. G. M., Anderson, D. R., Barros, S. C. C., Bouchy, F., Boumis, P., Bruno, G., Cameron, A. C., Courcol, B., Davies, G. R., Faedi, F., Hellier, C., Kirk, J., Lam, K. W. F., …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.-M., Anderson, D., Bouchy, F., Brown, D., Collier Cameron, A., Deleuil, M., Delrez, L., Doyle, A., Faedi, F., Fumel, A., Gillon, M., Hebrard, G., Hellier, C., Jehin, E., Lendl, M., Maxted, P., Pepe, F., Pollacco, D., Queloz, D., …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., Schaffenroth, V., Ziegerer, E., Ostensen, R. . H., & 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., Csák, B., Garcia-Alvarez, D., Maxted, P., Kiss, L., Vida, K., Szabó, G., & 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., Pavlovski, K., Marschall, L., & 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.

Bayesian mass and age estimates for transiting exoplanet host stars (2015)
Journal Article
Maxted, P., Serenelli, A., & Southworth, J. (2015). Bayesian mass and age estimates for transiting exoplanet host stars. Astronomy & Astrophysics, 575, Article A36. https://doi.org/10.1051/0004-6361/201425331

The mean density of a star transited by a planet, brown dwarf or low mass star can be accurately measured from its light curve. This measurement can be combined with other observations to estimate its mass and age by comparison with stellar models. O... Read More about Bayesian mass and age estimates for transiting exoplanet host stars.

Multiwaveband photometry of the irradiated brown dwarf WD0137-349B (2015)
Journal Article
Casewell, S., Lawrie, K., Maxted, P., Marley, M., Fortney, J., Rimmer, P., Littlefair, S., Wynn, G., Burleigh, M., & Helling, C. (2015). Multiwaveband photometry of the irradiated brown dwarf WD0137-349B. Monthly Notices of the Royal Astronomical Society, 447(4), 3218 -3226. https://doi.org/10.1093/mnras/stu2721

WD0137-349 is a white dwarf–brown dwarf binary system in a 116 min orbit. We present radial velocity observations and multiwaveband photometry from V, R and I in the optical, to J, H and Ks in the near-IR and [3.6], [4.5], [5.8] and [8.0] µm in the m... Read More about Multiwaveband photometry of the irradiated brown dwarf WD0137-349B.

Hot subdwarf binaries from the MUCHFUSS project - Analysis of 12 new systems and a study of the short-period binary population (2015)
Journal Article
Kupfer, T., Geier, S., Heber, U., Østensen, R., Barlow, B., Maxted, P., Heuser, C., Schaffenroth, V., & Gänsicke, B. (2015). Hot subdwarf binaries from the MUCHFUSS project - Analysis of 12 new systems and a study of the short-period binary population. Astronomy & Astrophysics, A44 -?. https://doi.org/10.1051/0004-6361/201425213

The project Massive Unseen Companions to Hot Faint Underluminous Stars from SDSS (MUCHFUSS) aims at finding hot subdwarf stars with massive compact companions like massive white dwarfs (M>1.0 M$_\odot$), neutron stars, or stellar-mass black holes. We... Read More about Hot subdwarf binaries from the MUCHFUSS project - Analysis of 12 new systems and a study of the short-period binary population.

MUCHFUSS: Status and Highlights (2014)
Presentation / Conference Contribution
Geier, S., Kupfer, T., Barlow, B. N., Schaffenroth, V., Furst, F., Heuser, C., Ziegerer, E., Heber, U., Marsh, T. R., Maxted, P. F. L., Ostensen, R. H., O'Toole, S. J., Gansicke, B. T., & Napiwotzki, R. (2013, May). MUCHFUSS: Status and Highlights. Presented at 6th Conference on Hot Subdwarf Stars and Related Objects, Univ Arizona, Steward Observ, Tucson, AR, USA

The MUCHFUSS project aims at finding sdBs with massive compact companions. Here we report on the current status of our spectroscopic and photometric follow-up campaigns and present some highlight results. We derive orbital solutions of seven new sdB... Read More about MUCHFUSS: Status and Highlights.

WASP-94 A and B planets: hot-Jupiter cousins in a twin-star system (2014)
Journal Article
Neveu-VanMalle, M., Queloz, D., Anderson, D., Charbonnel, C., Collier Cameron, A., Delrez, L., Gillon, M., Hellier, C., Jehin, E., Lendl, M., Maxted, P., Pepe, F., Pollacco, D., Ségransan, D., Smalley, B., Smith, A., Southworth, J., Triaud, A., Udry, S., & West, R. (2014). WASP-94 A and B planets: hot-Jupiter cousins in a twin-star system. Astronomy & Astrophysics, https://doi.org/10.1051/0004-6361/201424744

We report the discovery of two hot-Jupiter planets, each orbiting one of the stars of a wide binary system. WASP-94A (2MASS 20550794–3408079) is an F8 type star hosting a transiting planet with a radius of 1.72 ± 0.06 RJup, a mass of 0.452 ± 0.034 MJ... Read More about WASP-94 A and B planets: hot-Jupiter cousins in a twin-star system.

Three WASP-South transiting exoplanets: WASP-74b, WASP-83b & WASP-89b (2014)
Journal Article
Hellier, C., Anderson, D., Collier Cameron, A., Delrez, L., Gillon, M., Jehin, E., Lendl, M., Maxted, P., Pepe, F., Pollacco, D., Queloz, D., Ségransan, D., Smalley, B., Smith, A., Southworth, J., Triaud, A., Turner, O., Udry, S., & West, R. (2014). Three WASP-South transiting exoplanets: WASP-74b, WASP-83b & WASP-89b. Astronomical Journal, 150(1), Article 18. https://doi.org/10.1088/0004-6256/150/1/18

We report the discovery of three new transiting hot Jupiters by WASP-South together with the TRAPPIST photometer and the Euler/CORALIE spectrograph. WASP-74b orbits a star of V = 9.7, making it one of the brighter systems accessible to Southern teles... Read More about Three WASP-South transiting exoplanets: WASP-74b, WASP-83b & WASP-89b.

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