Results 141 to 150 of about 46,669 (261)

Revised exoplanet radii and habitability using Gaia Data Release 2

open access: yes, 2018
Accurate stellar properties are crucial for determining exoplanet characteristics. Gaia DR2 presents revised distances, luminosities, and radii for 1.6 billion stars. Here, we report the calculation of revised radii and densities for 320 exoplanets using
Johns, Daniel   +6 more
core   +1 more source

Classification of Planetary Motion around Super-Jupiters and Brown Dwarfs

open access: yesUniverse
We investigate the orbital dynamics of an exosystem consisting of a solar-mass host star, a transiting body, and an Earth-size exoplanet within the framework of the generalized three-body problem.
Euaggelos E. Zotos   +2 more
doaj   +1 more source

OF “COCKTAIL PARTIES” AND EXOPLANETS [PDF]

open access: yesThe Astrophysical Journal, 2012
ApJ ...
openaire   +2 more sources

Modeling the Impact of Unresolved Stellar Companions on Detection Sensitivity in Kepler’s Small-planet Occurrence Rates

open access: yesThe Astronomical Journal
Unresolved stellar companions can cause both underestimations in the radii of transiting planets and overestimations of their detectability, affecting our ability to reliably measure planet occurrence rates.
Galen J. Bergsten   +7 more
doaj   +1 more source

EXONEST: The Bayesian Exoplanetary Explorer

open access: yesEntropy, 2017
The fields of astronomy and astrophysics are currently engaged in an unprecedented era of discovery as recent missions have revealed thousands of exoplanets orbiting other stars.
Kevin H. Knuth   +6 more
doaj   +1 more source

Ground-based Reconnaissance Observations of 21 Exoplanet Atmospheres with the Exoplanet Transmission Spectroscopy Imager [PDF]

open access: yes
One of the most prolific methods of studying exoplanet atmospheres is transmission spectroscopy, which measures the difference between the depth of an exoplanet\u27s transit signal at various wavelengths and attempts to correlate the depth changes to ...
Marshall, J. L.   +9 more
core   +1 more source

Characterization of Exoplanets with LIFE (Large Interferometer For Exoplanets)

open access: yes
The ESA Voyage 2050 report (https://www.cosmos.esa.int/web/voyage-2050) names the “characterisation of temperate exoplanets in the mid-infrared, through a first spectrum of direct thermal emission from exoplanet atmospheres to better understand if they harbour truly habitable surface conditions” as one of the top three priorities ...
Noack, Lena   +5 more
openaire   +3 more sources

Hundreds of TESS Exoplanets Might Be Larger than We Thought

open access: yesThe Astrophysical Journal Letters
The radius of a planet is a fundamental parameter that probes its composition and habitability. Precise radius measurements are typically derived from the fraction of starlight blocked when a planet transits its host star.
Te Han   +7 more
doaj   +1 more source

Detecting Exoplanet Transits with the Next Generation of X-Ray Telescopes

open access: yesThe Astronomical Journal
Detecting exoplanet transits at X-ray wavelengths would provide a window into the effects of high-energy irradiation on the upper atmospheres of planets.
Raven Cilley   +2 more
doaj   +1 more source

Detection of Exoplanets with Machine Learning Techniques Through Transit Light-curve Analysis

open access: yesThe Astronomical Journal
Exoplanet detection is an active research area in astronomy. As the volume of astronomical data increases, there is a need for methods that can automate the data processing pipeline efficiently.
Mir Sakhawat Hossain, Md. Sadman
doaj   +1 more source

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