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Outputs (214)

A search for transiting planets around hot subdwarfs (2021)
Journal Article
Maxted. (2021). A search for transiting planets around hot subdwarfs. Astronomy & Astrophysics, https://doi.org/10.1051/0004-6361/202140381

Context. Hot subdwarfs experienced strong mass loss on the red giant branch (RGB) and are now hot and small He-burning objects. These stars constitute excellent opportunities for addressing the question of the evolution of exoplanetary systems direct... Read More about A search for transiting planets around hot subdwarfs.

Transit detection of the long-period volatile-rich super-Earth v2 Lupi d with CHEOPS (2021)
Journal Article
Maxted. (2021). Transit detection of the long-period volatile-rich super-Earth v2 Lupi d with CHEOPS. Nature Astronomy, 775-787. https://doi.org/10.1038/s41550-021-01381-5

Exoplanets transiting bright nearby stars are key objects for advancing our knowledge of planetary formation and evolution. The wealth of photons from the host star gives detailed access to the atmospheric, interior and orbital properties of the plan... Read More about Transit detection of the long-period volatile-rich super-Earth v2 Lupi d with CHEOPS.

The surface brightness–colour relations based on eclipsing binary stars and calibrated with Gaia EDR3 (2021)
Journal Article
Graczyk, D., Pietrzyński, G., Gałan, C., Gieren, W., Tkachenko, A., Anderson, R., Gallenne, A., Górski, M., Hajdu, G., Kałuszyński, M., Karczmarek, P., Kervella, P., Maxted, P., Nardetto, N., Narloch, W., Pavlovski, K., Pilecki, B., Pych, W., Southworth, J., Storm, J., …Konorski, P. (2021). The surface brightness–colour relations based on eclipsing binary stars and calibrated with Gaia EDR3. Astronomy & Astrophysics, 649, Article A109. https://doi.org/10.1051/0004-6361/202140571

Aims. The surface brightness–colour relation (SBCR) is a basic tool for establishing precise and accurate distances within the Local Group. Detached eclipsing binary stars with accurately determined radii and trigonometric parallaxes allow calibratio... Read More about The surface brightness–colour relations based on eclipsing binary stars and calibrated with Gaia EDR3.

Six transiting planets and a chain of Laplace resonances in TOI-178 (2021)
Journal Article
Maxted. (2021). Six transiting planets and a chain of Laplace resonances in TOI-178. Astronomy & Astrophysics, 1-29. https://doi.org/10.1051/0004-6361/202039767

Determining the architecture of multi-planetary systems is one of the cornerstones of understanding planet formation and evolution. Resonant systems are especially important as the fragility of their orbital configuration ensures that no significant... Read More about Six transiting planets and a chain of Laplace resonances in TOI-178.

A tidally tilted sectoral dipole pulsation mode in the eclipsing binary TIC 63328020 (2021)
Journal Article
Maxted, P., Rappaport, S. A., Kurtz, D. W., Handler, G., Jones, D., Nelson, L. A., Saio, H., Fuller, J., Holdsworth, D. L., Vanderburg, A., Zak, J., Skarka, M., Aiken, J., Maxted, P. F. L., Stevens, D. J., Feliz, D. L., & Alicavu, F. K. (2021). A tidally tilted sectoral dipole pulsation mode in the eclipsing binary TIC 63328020. Monthly Notices of the Royal Astronomical Society, 503(1), 254-269. https://doi.org/10.1093/mnras/stab336

We report the discovery of the third tidally tilted pulsator, TIC 63328020. Observations with the TESS satellite reveal binary eclipses with an orbital period of 1.1057 d, and d Scuti-type pulsations with a mode frequency of 21.09533 d-1. This pulsat... Read More about A tidally tilted sectoral dipole pulsation mode in the eclipsing binary TIC 63328020.

BG Ind: the nearest doubly eclipsing, compact hierarchical quadruple system (2021)
Journal Article
Borkovits, T., Rappaport, S. A., Maxted, P. F. L., Terentev, I., Omohundro, M., Gagliano, R., Jacobs, T., Kristiansen, M. H., LaCourse, D., Schwengeler, H. M., Vanderburg, A., & Blackford, M. G. (2021). BG Ind: the nearest doubly eclipsing, compact hierarchical quadruple system. Monthly Notices of the Royal Astronomical Society, 503(3), 3759-3774. https://doi.org/10.1093/mnras/stab621

BG Ind is a well-studied, bright, nearby binary consisting of a pair of F stars in a 1.46-d orbit. We have discovered in the TESS light curve for TIC 229804573 (aka BG Ind), a second eclipsing binary in the system with a 0.53-d period. Our subsequent... Read More about BG Ind: the nearest doubly eclipsing, compact hierarchical quadruple system.

CHEOPS observations of the HD 108236 planetary system: a fifth planet, improved ephemerides, and planetary radii (2021)
Journal Article
Maxted. (2021). CHEOPS observations of the HD 108236 planetary system: a fifth planet, improved ephemerides, and planetary radii. Astronomy & Astrophysics, https://doi.org/10.1051/0004-6361/202039608

Context. The detection of a super-Earth and three mini-Neptunes transiting the bright (V = 9.2 mag) star HD 108236 (also known as TOI-1233) was recently reported on the basis of TESS and ground-based light curves.

Aims. We perform a first characte... Read More about CHEOPS observations of the HD 108236 planetary system: a fifth planet, improved ephemerides, and planetary radii.

The hot dayside and asymmetric transit of WASP-189 b seen by CHEOPS (2020)
Journal Article
Maxted. (2020). The hot dayside and asymmetric transit of WASP-189 b seen by CHEOPS. Astronomy and Astrophysics, https://doi.org/10.1051/0004-6361/202038677

The CHEOPS space mission dedicated to exoplanet follow-up was launched in December 2019, equipped with the capacity to perform photometric measurements at the 20 ppm level. As CHEOPS carries out its observations in a broad optical passband, it can pr... Read More about The hot dayside and asymmetric transit of WASP-189 b seen by CHEOPS.

The TESS light curve of the eccentric eclipsing binary 1SWASP J011351.29+314909.7 – no evidence for a very hot M-dwarf companion (2020)
Journal Article
Maxted. (2020). The TESS light curve of the eccentric eclipsing binary 1SWASP J011351.29+314909.7 – no evidence for a very hot M-dwarf companion. Monthly Notices of the Royal Astronomical Society: Letters, 15-19. https://doi.org/10.1093/mnrasl/slaa122

A 2014 study of the eclipsing binary star 1SWASPJ011351.29+314909.7 (J0113+31) reported an unexpectedly high effective temperature for the M-dwarf companion to the 0.95-M? primary star. The effective temperature inferred from the secondary eclipse de... Read More about The TESS light curve of the eccentric eclipsing binary 1SWASP J011351.29+314909.7 – no evidence for a very hot M-dwarf companion.