Results 21 to 30 of about 37,125 (209)

Robo-AO and SOAR High-Resolution Surveys of Exoplanet Hosting Stars

open access: yesFrontiers in Astronomy and Space Sciences, 2021
In the past decade, space-based transit surveys have delivered thousands of potential planet-hosting systems. Each of these needs to be vetted and characterized using follow-up high-resolution imaging.
Carl Ziegler   +4 more
doaj   +1 more source

The contribution of the major planet search surveys to EChO target selection [PDF]

open access: yes, 2014
The EChO core science will be based on a three tier survey, each with increasing sensitivity, in order to study the population of exo-planets from super-Earths to Jupiter-like planets, in the very hot to temperate zones (temperatures of 300 K - 3000 K ...
Bakos, Gaspar A.   +6 more
core   +2 more sources

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

Heavy Metal Rules. I. Exoplanet Incidence and Metallicity

open access: yesGeosciences, 2019
The discovery of only a handful of exoplanets required establishing a correlation between giant planet occurrence and metallicity of their host stars.
Vardan Adibekyan
doaj   +1 more source

Maximum Angular Separation Epochs for Exoplanet Imaging Observations [PDF]

open access: yes, 2018
Direct imaging of exoplanets presents both significant challenges and significant gains. The advantages primarily lie in receiving emitted and, with future instruments, reflected photons at phase angles not accessible by other techniques, enabling the ...
Kane, Stephen R.   +2 more
core   +3 more sources

Exoplanet science 2.0 [PDF]

open access: yesNature, 2018
The study of life on and off Earth needs unified funding and a coherent plan, say Caleb Scharf, Debra Fischer and Victoria Meadows. The study of life on and off Earth needs unified funding and a coherent plan, say Caleb Scharf, Debra Fischer and Victoria Meadows.
Caleb, Scharf   +2 more
openaire   +2 more sources

The Detection and Characterization of Extrasolar Planets

open access: yesChallenges, 2014
We have now confirmed the existence of > 1800 planets orbiting stars other thanthe Sun; known as extrasolar planets or exoplanets. The different methods for detectingsuch planets are sensitive to different regions of parameter space, and so, we are ...
Ken Rice
doaj   +1 more source

Habitable Zones in Binary Star Systems: A Zoology

open access: yesGalaxies, 2020
Several concepts have been brought forward to determine where terrestrial planets are likely to remain habitable in multi-stellar environments. Isophote-based habitable zones, for instance, rely on insolation geometry to predict habitability, whereas ...
Siegfried Eggl   +2 more
doaj   +1 more source

Can we constrain interior structure of rocky exoplanets from mass and radius measurements? [PDF]

open access: yes, 2015
We present an inversion method based on Bayesian analysis to constrain the interior structure of terrestrial exoplanets, in the form of chemical composition of the mantle and core size.
Alibert, Yann   +6 more
core   +2 more sources

Exoplanet Biosignatures: Future Directions [PDF]

open access: yesAstrobiology, 2018
125 pages (double spaced), 12 figures; The paper is the fourth in a series of 5 review manuscripts of the NExSS Exoplanet Biosignatures Workshop.
Walker, Sara I.   +13 more
openaire   +8 more sources

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