Search Results - "Timmermans, Mathilde"
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Evidence for Low-level Dynamical Excitation in Near-resonant Exoplanet Systems
Published in The Astronomical journal (01-12-2023)“…Abstract The geometries of near-resonant planetary systems offer a relatively pristine window into the initial conditions of exoplanet systems. Given that…”
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prose: a python framework for modular astronomical images processing
Published in Monthly notices of the Royal Astronomical Society (09-12-2021)“…ABSTRACT To reduce and analyse astronomical images, astronomers can rely on a wide range of libraries providing low-level implementations of legacy algorithms…”
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TOI-3235 b: A Transiting Giant Planet around an M4 Dwarf Star
Published in Astrophysical journal. Letters (01-03-2023)“…Abstract We present the discovery of TOI-3235 b, a short-period Jupiter orbiting an M dwarf with a stellar mass close to the critical mass at which stars…”
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TESS Hunt for Young and Maturing Exoplanets (THYME). X. A Two-planet System in the 210 Myr MELANGE-5 Association
Published in The Astronomical journal (01-07-2024)“…Abstract Young (<500 Myr) planets are critical to studying how planets form and evolve. Among these young planetary systems, multiplanet configurations are…”
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The sherlock pipeline: new exoplanet candidates in the WASP-16, HAT-P-27, HAT-P-26, and TOI-2411 systems
Published in Monthly notices of the Royal Astronomical Society (06-08-2024)“…ABSTRACT The launches of NASA Kepler and Transiting Exoplanet Survey Satellite (TESS) missions have significantly enhanced the interest in the exoplanet field…”
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A 1.55 R⊕ habitable-zone planet hosted by TOI-715, an M4 star near the ecliptic South Pole
Published in Monthly notices of the Royal Astronomical Society (01-01-2024)“…ABSTRACT A new generation of observatories is enabling detailed study of exoplanetary atmospheres and the diversity of alien climates, allowing us to seek…”
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TESS discovery of a sub-Neptune orbiting a mid-M dwarf TOI-2136
Published in Monthly notices of the Royal Astronomical Society (29-06-2022)“…ABSTRACT We present the discovery of TOI-2136 b, a sub-Neptune planet transiting a nearby M4.5V-type star every 7.85 d, identified through photometric…”
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A study of flares in the ultra-cool regime from SPECULOOS-South
Published in Monthly notices of the Royal Astronomical Society (06-05-2022)“…ABSTRACT We present a study of photometric flares on 154 low-mass (≤0.2 M⊙) objects observed by the SPECULOOS-South Observatory from 2018 June 1 to 2020 March…”
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TOI 4201 b and TOI 5344 b: Discovery of Two Transiting Giant Planets around M-dwarf Stars and Revised Parameters for Three Others
Published in The Astronomical journal (01-10-2023)“…Abstract We present the discovery from the TESS mission of two giant planets transiting M-dwarf stars: TOI 4201 b and TOI 5344 b. We also provide precise…”
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The TESS Grand Unified Hot Jupiter Survey. II. Twenty New Giant Planets
Published in The Astrophysical journal. Supplement series (01-03-2023)“…Abstract NASA’s Transiting Exoplanet Survey Satellite (TESS) mission promises to improve our understanding of hot Jupiters by providing an all-sky,…”
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A Massive Hot Jupiter Orbiting a Metal-rich Early M Star Discovered in the TESS Full-frame Images
Published in The Astronomical journal (01-10-2023)“…Abstract Observations and statistical studies have shown that giant planets are rare around M dwarfs compared with Sun-like stars. The formation mechanism of…”
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TOI-2379 b and TOI-2384 b: two super-Jupiter mass planets transiting low-mass host stars
Published in Monthly notices of the Royal Astronomical Society (01-10-2024)“…ABSTRACT Short-period gas giant planets have been shown to be significantly rarer for host stars less massive than the Sun. We report the discovery of two…”
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TOI 762 A b and TIC 46432937 b: Two Giant Planets Transiting M-dwarf Stars
Published in The Astronomical journal (01-11-2024)“…Abstract We present the discovery of TOI 762 A b and TIC 46432937 b, two giant planets transiting M-dwarf stars. Transits of both systems were first detected…”
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An M dwarf accompanied by a close-in giant orbiter with SPECULOOS
Published in Monthly notices of the Royal Astronomical Society. Letters (01-10-2023)“…ABSTRACT In the last decade, a dozen close-in giant planets have been discovered orbiting stars with spectral types ranging from M0 to M4, a mystery since…”
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NGTS-28Ab: a short period transiting brown dwarf
Published in Monthly notices of the Royal Astronomical Society (05-04-2024)“…ABSTRACT We report the discovery of a brown dwarf orbiting a M1 host star. We first identified the brown dwarf within the Next Generation Transit Survey data,…”
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Gliese 12 b, a temperate Earth-sized planet at 12 parsecs discovered with TESS and CHEOPS
Published in Monthly notices of the Royal Astronomical Society (01-06-2024)“…ABSTRACT We report on the discovery of Gliese 12 b, the nearest transiting temperate, Earth-sized planet found to date. Gliese 12 is a bright (V = 12.6 mag,…”
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Migration and Evolution of giant ExoPlanets (MEEP). I. Nine Newly Confirmed Hot Jupiters from the TESS Mission
Published in The Astronomical journal (01-07-2024)“…Abstract Hot Jupiters were many of the first exoplanets discovered in the 1990s, but in the decades since their discovery the mysteries surrounding their…”
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VaTEST. II. Statistical Validation of 11 TESS-detected Exoplanets Orbiting K-type Stars
Published in The Astronomical journal (01-07-2023)“…Abstract NASA’s Transiting Exoplanet Survey Satellite (TESS) is an all-sky survey mission designed to find transiting exoplanets orbiting nearby bright stars…”
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Precise near-infrared photometry, accounting for precipitable water vapour at SPECULOOS Southern Observatory
Published in Monthly notices of the Royal Astronomical Society (01-01-2023)“…ABSTRACT The variability induced by precipitable water vapour (PWV) can heavily affect the accuracy of time-series photometric measurements gathered from the…”
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