Outputs (191)

Discovery and characterization of the exoplanets WASP-148b and c - A transiting system with two interacting giant planets (2020)
Journal Article
Hellier, Smalley, & Maxted. (2020). Discovery and characterization of the exoplanets WASP-148b and c - A transiting system with two interacting giant planets. Astronomy and Astrophysics, https://doi.org/10.1051/0004-6361/202038296

We present the discovery and characterization of WASP-148, a new extrasolar system that includes at least two giant planets. The host star is a slowly rotating inactive late-G dwarf with a V = 12 magnitude. The planet WASP-148b is a hot Jupiter of 0.... Read More about Discovery and characterization of the exoplanets WASP-148b and c - A transiting system with two interacting giant planets.

Fundamental effective temperature measurements for eclipsing binary stars I. Development of the method and application to AI Phoenicis (2020)
Journal Article
Smalley, & Maxted. (2020). Fundamental effective temperature measurements for eclipsing binary stars I. Development of the method and application to AI Phoenicis. Monthly Notices of the Royal Astronomical Society, 2899-2909. https://doi.org/10.1093/mnras/staa2167

Stars with accurate and precise effective temperature (Teff) measurements are needed to test stellar atmosphere models and calibrate empirical methods to determine Teff. There are few standard stars currently available to calibrate temperature indica... Read More about Fundamental effective temperature measurements for eclipsing binary stars I. Development of the method and application to AI Phoenicis.

The Compact Triply Eclipsing Triple Star TIC 209409435 Discovered with TESS (2020)
Journal Article
Maxted. (2020). The Compact Triply Eclipsing Triple Star TIC 209409435 Discovered with TESS. Monthly Notices of the Royal Astronomical Society, 4624-4636. https://doi.org/10.1093/mnras/staa1817

We report the discovery in TESS Sectors 3 and 4 of a compact triply eclipsing triple star system. TIC 209409435 is a previously unknown eclipsing binary with a period of 5.717 days, and the presence of a third star in an outer eccentric orbit of 121.... Read More about The Compact Triply Eclipsing Triple Star TIC 209409435 Discovered with TESS.

The TESS light curve of AI Phoenicis (2020)
Journal Article
Maxted, P. F. L., Gaulme, P., Graczyk, D., Hełminiak, K. G., Johnston, C., Orosz, J. A., …Chaplin, W. J. (2020). The TESS light curve of AI Phoenicis. Monthly Notices of the Royal Astronomical Society, 498(1), 332-343. https://doi.org/10.1093/mnras/staa1662

Accurate masses and radii for normal stars derived from observations of detached eclipsing binary stars are of fundamental importance for testing stellar models and may be useful for calibrating free parameters in these model if the masses and radii... Read More about The TESS light curve of AI Phoenicis.

Two Transiting Hot Jupiters from the WASP Survey: WASP-150b and WASP-176b (2020)
Journal Article
Cooke, B. F., Pollacco, D., Almleaky, Y., Barkaoui, K., Benkhaldoun, Z., Blake, J. A., …Alikakos, J. (2020). Two Transiting Hot Jupiters from the WASP Survey: WASP-150b and WASP-176b. Astronomical Journal, 159(6), Article 255. https://doi.org/10.3847/1538-3881/ab88db

We report the discovery of two transiting exoplanets from the WASP survey, WASP-150b and WASP-176b. WASP-150b is an eccentric (e = 0.38) hot Jupiter on a 5.6 day orbit around a V = 12.03, F8 main-sequence host. The host star has a mass and radius of... Read More about Two Transiting Hot Jupiters from the WASP Survey: WASP-150b and WASP-176b.

TOI-1338: TESS' First Transiting Circumbinary Planet (2020)
Journal Article
Maxted. (2020). TOI-1338: TESS' First Transiting Circumbinary Planet. Astronomical Journal, https://doi.org/10.3847/1538-3881/ab8a48

We report the detection of the first circumbinary planet (CBP) found by Transiting Exoplanet Survey Satellite (TESS). The target, a known eclipsing binary, was observed in sectors 1 through 12 at 30 minute cadence and in sectors 4 through 12 at 2 min... Read More about TOI-1338: TESS' First Transiting Circumbinary Planet.

A multiplicity study of transiting exoplanet host stars I. High-contrast imaging with VLT/SPHERE (2020)
Journal Article
Bohn, A., Southworth, J., Ginski, C., Kenworthy, M., Maxted, P., & Evans, D. (2020). A multiplicity study of transiting exoplanet host stars I. High-contrast imaging with VLT/SPHERE. Astronomy & Astrophysics, 635, Article A73. https://doi.org/10.1051/0004-6361/201937127

Context. Many main-sequence stars are part of multiple systems. The effect of stellar multiplicity on planet formation and migration, however, is poorly understood.

Aims. We study the multiplicity of stars hosting known transiting extra-solar plan... Read More about A multiplicity study of transiting exoplanet host stars I. High-contrast imaging with VLT/SPHERE.

TICs 167692429 and 220397947: the first compact hierarchical triple stars discovered with TESS (2020)
Journal Article
Maxted. (2020). TICs 167692429 and 220397947: the first compact hierarchical triple stars discovered with TESS. Monthly Notices of the Royal Astronomical Society, 5005 - 5023. https://doi.org/10.1093/mnras/staa495

We report the discovery and complex analyses of the first two compact hierarchical triple star systems discovered with TESS in or near its southern continuous viewing zone during Year 1. Both TICs 167692429 and 220397947 were previously unknown eclip... Read More about TICs 167692429 and 220397947: the first compact hierarchical triple stars discovered with TESS.

The Pre-He White Dwarf in the Post-mass Transfer Binary EL CVn (2020)
Journal Article
Maxted. (2020). The Pre-He White Dwarf in the Post-mass Transfer Binary EL CVn. Astronomical Journal, 1-11. https://doi.org/10.3847/1538-3881/ab52fa

EL CVn is the prototype of a class of eclipsing binaries that consist of an A- or F-type main-sequence star and a hot, low-mass, pre-He white dwarf (pre-He WD), the stripped down remains of the former mass donor. Here we present the first direct dete... Read More about The Pre-He White Dwarf in the Post-mass Transfer Binary EL CVn.

WASP-South hot Jupiters: WASP-178b, WASP-184b, WASP-185b & WASP-192b (2019)
Journal Article
Smalley, Hellier, & Maxted. (2019). WASP-South hot Jupiters: WASP-178b, WASP-184b, WASP-185b & WASP-192b. Monthly Notices of the Royal Astronomical Society, 1479-1487. https://doi.org/10.1093/mnras/stz2713

We report on four new transiting hot Jupiters discovered by the WASP-South survey. WASP-178b transits a V = 9.9, A1V star with Teff = 9350 ± 150 K, the second-hottest transit host known. It has a highly bloated radius of 1.81 ± 0.09 RJup, in line wit... Read More about WASP-South hot Jupiters: WASP-178b, WASP-184b, WASP-185b & WASP-192b.