Search Results - "Nielsen, Louise D."
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JWST opens a window on exoplanet skies
Published in Nature (London) (23-02-2023)“…An unprecedented glimpse of a distant planet reveals clues about how it might have formed. Scientists explain why it’s a win for atmospheric chemistry, and…”
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NGTS-7Ab: an ultrashort-period brown dwarf transiting a tidally locked and active M dwarf
Published in Monthly notices of the Royal Astronomical Society (11-11-2019)“…ABSTRACT We present the discovery of NGTS-7Ab, a high-mass brown dwarf transiting an M dwarf with a period of 16.2 h, discovered as part of the Next Generation…”
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TOI-150b and TOI-163b: two transiting hot Jupiters, one eccentric and one inflated, revealed by TESS near and at the edge of the JWST CVZ
Published in Monthly notices of the Royal Astronomical Society (21-11-2019)“…Abstract We present the discovery of TYC9191-519-1b (TOI-150b, TIC 271893367) and HD271181b (TOI-163b, TIC 179317684), two hot Jupiters initially detected…”
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4
An eclipsing M-dwarf close to the hydrogen burning limit from NGTS
Published in Monthly notices of the Royal Astronomical Society (01-11-2020)“…ABSTRACT We present the discovery of NGTS J0930−18, an extreme mass ratio eclipsing M-dwarf binary system with an early M-dwarf primary and a late M-dwarf…”
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Surviving in the Hot-Neptune Desert: The Discovery of the Ultrahot Neptune TOI-3261b
Published in The Astronomical journal (01-09-2024)“…Abstract The recent discoveries of Neptune-sized ultra-short-period planets (USPs) challenge existing planet formation theories. It is unclear whether these…”
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Planet Hunters NGTS: New Planet Candidates from a Citizen Science Search of the Next Generation Transit Survey Public Data
Published in The Astronomical journal (01-05-2024)“…Abstract We present the results from the first two years of the Planet Hunters Next Generation Transit Survey (NGTS) citizen science project, which searches…”
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A Low-mass, Pre-main-sequence Eclipsing Binary in the 40 Myr Columba Association—Fundamental Stellar Parameters and Modeling the Effect of Star Spots
Published in The Astronomical journal (01-02-2023)“…Abstract Young eclipsing binaries (EBs) are powerful probes of early stellar evolution. Current models are unable to simultaneously reproduce the measured and…”
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NGTS-6b: an ultrashort period hot-Jupiter orbiting an old K dwarf
Published in Monthly notices of the Royal Astronomical Society (01-11-2019)“…ABSTRACT We report the discovery of a new ultrashort period hot Jupiter from the Next Generation Transit Survey. NGTS-6b orbits its star with a period of…”
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PandExo: A Community Tool for Transiting Exoplanet Science with JWST & HST
Published in Publications of the Astronomical Society of the Pacific (01-06-2017)“…As we approach the James Webb Space Telescope (JWST) era, several studies have emerged that aim to (1) characterize how the instruments will perform and (2)…”
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One year of AU Mic with HARPS – II. Stellar activity and star–planet interaction
Published in Monthly notices of the Royal Astronomical Society (12-04-2022)“…ABSTRACT We present a spectroscopic analysis of a 1-yr intensive monitoring campaign of the 22-Myr old planet-hosting M dwarf AU Mic using the HARPS…”
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HD 213885b: a transiting 1-d-period super-Earth with an Earth-like composition around a bright ( V = 7.9) star unveiled by TESS
Published in Monthly notices of the Royal Astronomical Society (01-01-2020)“…ABSTRACT We report the discovery of the 1.008-d, ultrashort period (USP) super-Earth HD 213885b (TOI-141b) orbiting the bright (V = 7.9) star HD 213885…”
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Classifying exoplanet candidates with convolutional neural networks: application to the Next Generation Transit Survey
Published in Monthly notices of the Royal Astronomical Society (01-10-2019)“…ABSTRACT Vetting of exoplanet candidates in transit surveys is a manual process, which suffers from a large number of false positives and a lack of…”
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Resolving period aliases for TESS monotransits recovered during the extended mission
Published in Monthly notices of the Royal Astronomical Society (01-02-2021)“…ABSTRACT We set out to explore how best to mitigate the number of period aliases for a transiting Transiting Exoplanet Survey Satellite (TESS) system with two…”
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TOI-332 b: a super dense Neptune found deep within the Neptunian desert
Published in Monthly notices of the Royal Astronomical Society (21-09-2023)“…ABSTRACT To date, thousands of planets have been discovered, but there are regions of the orbital parameter space that are still bare. An example is the short…”
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NGTS and WASP photometric recovery of a single-transit candidate from TESS
Published in Monthly notices of the Royal Astronomical Society (01-01-2020)“…Abstract The Transiting Exoplanet Survey Satellite (TESS) produces a large number of single-transit event candidates, since the mission monitors most stars for…”
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Discovery and characterization of two Neptune-mass planets orbiting HD 212729 with TESS
Published in Monthly notices of the Royal Astronomical Society (29-07-2023)“…ABSTRACT We report the discovery of two exoplanets orbiting around HD 212729 (TOI 1052, TIC 317060587), a Teff = 6146 K star with V = 9.51 observed by TESS in…”
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NGTS-10b: the shortest period hot Jupiter yet discovered
Published in Monthly notices of the Royal Astronomical Society (01-03-2020)“…ABSTRACT We report the discovery of a new ultrashort period (USP) transiting hot Jupiter from the Next Generation Transit Survey (NGTS). NGTS-10b has a mass…”
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TOI-2374 b and TOI-3071 b: two metal-rich sub-Saturns well within the Neptunian desert
Published in Monthly notices of the Royal Astronomical Society (01-08-2024)“…ABSTRACT We report the discovery of two transiting planets detected by the Transiting Exoplanet Survey Satellite (TESS), TOI-2374 b and TOI-3071 b, orbiting a…”
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A long-period (P = 61.8 d) M5V dwarf eclipsing a Sun-like star from TESS and NGTS
Published in Monthly notices of the Royal Astronomical Society (01-07-2020)“…ABSTRACT The Transiting Exoplanet Survey Satellite has produced a large number of single-transit event candidates which are being monitored by the Next…”
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NGTS-21b: an inflated Super-Jupiter orbiting a metal-poor K dwarf
Published in Monthly notices of the Royal Astronomical Society (02-11-2022)“…ABSTRACT We report the discovery of NGTS-21b , a massive hot Jupiter orbiting a low-mass star as part of the Next Generation Transit Survey (NGTS). The planet…”
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