Results 111 to 120 of about 47,659 (238)

Editorial: Challenges of asteroseismology in the era of space missions

open access: yesFrontiers in Astronomy and Space Sciences, 2022
Javier Pascual-Granado   +3 more
doaj   +1 more source

Pulsating stars harbouring planets

open access: yes, 2011
Why bother with asteroseismology while studying exoplanets? There are several answers to this question. Asteroseismology and exoplanetary sciences have much in common and the synergy between the two opens up new aspects in both fields.
A. Moya   +36 more
core   +2 more sources

Exoplanet Detection Techniques [PDF]

open access: yes, 2014
We are still in the early days of exoplanet discovery. Astronomers are beginning to model the atmospheres and interiors of exoplanets and have developed a deeper understanding of processes of planet formation and evolution. However, we have yet to map out the full complexity of multi-planet architectures or to detect Earth analogues around nearby stars.
Fischer, Debra A.   +6 more
openaire   +5 more sources

Methane Planets and their Mass-Radius Relation

open access: yes, 2015
Knowledge of both the mass and radius of an exoplanet allows us to estimate its mean density, and therefore its composition. Exoplanets seem to fill a very large parameter space in terms of mass and composition, and unlike the solar-system's planets ...
Helled, Ravit   +2 more
core   +1 more source

Imaging and Characterization of Extrasolar Planets with the Next Generation of Space Telescopes

open access: yesGeosciences, 2018
The study and characterization of the exoplanets’ atmospheres and composition is in its infancy. The large facilities that will make feasible to image an exo-Earth are currently under study.
Ana I. Gómez de Castro
doaj   +1 more source

A Quantitative Criterion for Defining Planets

open access: yes, 2015
A simple metric can be used to determine whether a planet or exoplanet can clear its orbital zone during a characteristic time scale, such as the lifetime of the host star on the main sequence.
Margot, Jean-Luc
core   +1 more source

On Tides and Exoplanets

open access: yesProceedings of the International Astronomical Union, 2019
AbstractThis paper reviews the basic equations used in the study of the tidal variations of the rotational and orbital elements of a system formed by one star and one close-in planet as given by the creep tide theory and Darwin’s constant time lag (CTL) theory.
openaire   +2 more sources

The Adaptability of Life on Earth and the Diversity of Planetary Habitats

open access: yesFrontiers in Microbiology, 2017
The evolutionary adaptability of life to extreme environments is astounding given that all life on Earth is based on the same fundamental biochemistry. The range of some physicochemical parameters on Earth exceeds the ability of life to adapt, but stays ...
Dirk Schulze-Makuch   +4 more
doaj   +1 more source

The distribution of exoplanet masses [PDF]

open access: bronze, 2001
A. Jorissen, M. Mayor, S. Udry
openalex   +1 more source

Notes on exoplanets

open access: yesJournal of Physics: Conference Series, 2010
Our knowledge about exoplanets evolves rapidly. Here I give a short overview of some aspects of the exoplanet research and I also introduce shortly the reader to the Hungarian activities in the exoplanet field.
openaire   +3 more sources

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