Results 31 to 40 of about 21,946 (214)

Large Interferometer For Exoplanets (LIFE) [PDF]

open access: yes, 2023
Context. Terrestrial exoplanets in the habitable zone are likely a common occurrence. The long-term goal is to characterize the atmospheres of dozens of such objects. The Large Interferometer For Exoplanets (LIFE) initiative aims to develop a space-based
S. Rugheimer   +27 more
core   +1 more source

Exoplanet interiors and habitability

open access: yesAdvances in Physics: X, 2019
More than 1000 exoplanets with a radius smaller than twice that of the Earth are currently known, mainly thanks to space missions dedicated to the search of exoplanets.
Tim Van Hoolst   +2 more
doaj   +1 more source

Follow-Up and Validation of K2 and TESS Planetary Systems With Keck NIRC2 Adaptive Optics Imaging

open access: yesFrontiers in Astronomy and Space Sciences, 2021
High resolution imaging (HRI) is a critical part of the transiting exoplanet follow-up and validation process. HRI allows previously unresolved stellar companions and background blends to be resolved, vetting false positive signals and improving the ...
Joshua E. Schlieder   +9 more
doaj   +1 more source

Muons, mutations, and planetary shielding

open access: yesFrontiers in Astronomy and Space Sciences, 2022
Life on earth is protected from astrophysical cosmic rays by the heliospheric magnetic and slowly varying geomagnetic fields, and by collisions with oxygen and nitrogen molecules in the atmosphere.
Piet C. de Groen
doaj   +1 more source

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

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

Mapping Exoplanets [PDF]

open access: yes, 2018
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

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

A Cubesat Payload for Exoplanet Detection

open access: yesSensors, 2017
The search for undiscovered planets outside the solar system is a scientific topic that is rapidly spreading into the astrophysical and engineering communities. In this framework, the design of an innovative payload to detect exoplanets from a nano-sized
Marcella Iuzzolino   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy