Results 101 to 110 of about 1,437 (218)
Revised Masses for Low-density Planets Orbiting the Disordered M-dwarf System TOI-1266
The Astronomical JournalWe present an analysis of 126 new radial velocity measurements from the MAROON-X spectrograph to investigate the TOI-1266 system, which hosts two known transiting sub-Neptunes at 10.8 and 18.8 days.
Dakotah Tyler +7 more
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The Astronomical JournalHot Jupiters were many of the first exoplanets discovered in the 1990s, but in the decades since their discovery the mysteries surrounding their origins have remained. Here we present nine new hot Jupiters (TOI-1855 b, TOI-2107 b, TOI-2368 b, TOI-3321 b,
Jack Schulte +74 more
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Impact of Climate States and Seasons on Future Exo-Earth Observations
The Astrophysical JournalMany planetary parameters impact the climate state of Earth-like exoplanets and could vary significantly from those on Earth. However, some of these parameters may be impossible to observe, causing ambiguity in determining exoplanet climate and ...
Kyle Batra +2 more
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Single Transit Detection in Kepler with Machine Learning and Onboard Spacecraft Diagnostics
The Astronomical JournalExoplanet discovery at long orbital periods requires reliably detecting individual transits without additional information about the system. Common techniques, like phase folding of light curves and periodogram analysis of radial velocity data, are more ...
Matthew T. Hansen, Jason A. Dittmann
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Exoplanet Detection : A Detailed Analysis
The exoplanet detection is the most exciting and challenging field of astronomy. The discovery of many exoplanets has revolutionized our understanding of the formation and evolution of planetary systems and has showed new ways to search for extra ...
Kaushik, Mahima +2 more
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Simulation of Realistic Images and Exoplanet Detection for Starshade Missions
, 2021 A starshade suppresses starlight by a factor of 1E11 in the image plane of a telescope, which is crucial for directly imaging Earth-like exoplanets. The state of the art in high-contrast signal detection methods was developed specifically for coronagraph
hu, Mengya
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Logistic regression to boost exoplanet detection performances
Direct imaging of exoplanets requires to separate the background noise from the exoplanet signals. Statistical methods have been recently proposed to avoid subtracting any signal of interest as opposed to initial self-subtracting methods based on Angular
Catusse, Nicolas +3 more
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Modeling Exoplanet Demographics Across Detection Methods
Exoplanet demographics leverages large-scale survey data to give us population-level in- sight to questions of planet formation, evolution, and habitability.
Bergsten, Galen Justice
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General circulation modelling of close-in extrasolar giant planets
, 2011 PhDA large fraction of the extrasolar planets detected so far are giant planets that have such short orbital periods (a few days) that they are thought to be tidally-synchronised with the host star. Such orbits lead to permanent day/night sides on the
Thrastarson, Heidar Thor
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Astrometry as an Exoplanet Discovery Method
, 2018 International audienceAstrometry consists in measuring the positions and the motions of the astronomical objects on the sky compared to other stars. The increased accuracy of such measurements opens the way to determine not only the proper motions of ...
Malbet, Fabien +3 more
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