Results 11 to 20 of about 21,448 (215)

Dark exoplanets [PDF]

open access: yesPhysical Review D, 2023
The prevailing assumption is that all exoplanets are made of ordinary matter. However, we propose an unconventional possibility that some exoplanets could be made of dark matter, which we name "dark exoplanets." In this paper, we explore methods to search for dark exoplanets, including the mass-radius relation, spectroscopy, missing transit, and ...
Yang Bai, Sida Lu, Nicholas Orlofsky
openaire   +4 more sources

Molecular opacities for exoplanets [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2014
Spectroscopic observations of exoplanets are now possible by transit methods and direct emission. Spectroscopic requirements for exoplanets are reviewed based on existing measurements and model predictions for hot Jupiters and super-Earths.
Bernath, P. F.
openaire   +5 more sources

Structure of exoplanets [PDF]

open access: yesProceedings of the National Academy of Sciences, 2013
Significance Planets around other stars, or exoplanets, are now known to be common in our galaxy. Exoplanets span a much wider range of physical conditions than the planets in our solar system, and include extremely puffy gas giants to compact rocky planets that can have densities as high as that of iron.
Spiegel, David S   +2 more
openaire   +4 more sources

Developing a Drift Rate Distribution for Technosignature Searches of Exoplanets [PDF]

open access: yes, 2023
A stable-frequency transmitter with relative radial acceleration to a receiver will show a change in received frequency over time, known as a "drift rate''.
Evan L. Sneed   +13 more
core   +1 more source

Water in exoplanets [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2012
Exoplanets—planets orbiting around stars other than our own Sun—appear to be common. Significant research effort is now focused on the observation and characterization of exoplanet atmospheres. Species such as water vapour, methane, carbon monoxide and carbon dioxide have been observed in a handful of hot, giant, gaseous planets, but ...
Giovanna, Tinetti   +3 more
openaire   +2 more sources

Atmospheres of rocky exoplanets [PDF]

open access: yes, 2023
The increasing number of known rocky exoplanets motivates investigations of the diversity of atmospheric and surface composition of these planets.
Herbort, Oliver
core   +1 more source

Trojan Exoplanets [PDF]

open access: yes
Co-orbital exoplanets are a by-product of the models of formation of planetary systems. However, none have been detected in nature thus far. Although challenging, the observation of co-orbital exoplanets would provide valuable information on the ...
Robutel, Philippe, Leleu, Adrien
core   +7 more sources

Mapping Exoplanets [PDF]

open access: yes, 2021
The varied surfaces and atmospheres of planets make them interesting places to live, explore, and study from afar. Unfortunately, the great distance to exoplanets makes it impossible to resolve their disk with current or near-term technology. It is still
Nicolas B. Cowan   +3 more
core   +1 more source

New exoplanets from the SuperWASP-North survey [PDF]

open access: yes, 2011
We present the current status of the WASP search for transiting exoplanets, focusing on recent planet discoveries from SuperWASP-North and the joint equatorial region (-20.Dec.+20) observed by both WASP telescopes.
Pollacco, Don   +6 more
core   +1 more source

Performance study of interferometric small-sats to detect exoplanets: Updated exoplanet yield and application to nearby exoplanets [PDF]

open access: yes, 2020
Nulling interferometry is considered as one of the most promising solutions to spectrally characterize rocky exoplanets in the habitable zone of nearby stars. It provides both high angular resolution and starlight mitigation.
Dandumont, Colin   +3 more
core   +1 more source

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