Results 31 to 40 of about 37,125 (209)

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

The Astrobiology of Alien Worlds: Known and Unknown Forms of Life

open access: yesUniverse, 2020
Most definitions of life assume that, at a minimum, life is a physical form of matter distinct from its environment at a lower state of entropy than its surroundings, using energy from the environment for internal maintenance and activity, and capable of
Louis N. Irwin, Dirk Schulze-Makuch
doaj   +1 more source

EChO [PDF]

open access: yesExperimental Astronomy, 2012
A dedicated mission to investigate exoplanetary atmospheres represents a major milestone in our quest to understand our place in the universe by placing our Solar System in context and by addressing the suitability of planets for the presence of life.
G. Tinetti   +134 more
openaire   +11 more sources

Evidence for enhanced chromospheric Ca II H & K emission in stars with close-in extrasolar planets

open access: yes, 2012
The planet-star interaction is manifested in many ways. It was found out that a close-in exoplanet causes small but measurable variability in the cores of a few lines in the spectra of several stars which corresponds to the orbital period of the ...
Bodenheimer   +26 more
core   +1 more source

The Habitability of the Galactic Bulge

open access: yesLife, 2020
We present a new investigation of the habitability of the Milky Way bulge, that expands previous studies on the Galactic Habitable Zone. We discuss existing knowledge on the abundance of planets in the bulge, metallicity and the possible frequency of ...
Amedeo Balbi   +2 more
doaj   +1 more source

Noise Sources in Photometry and Radial Velocities

open access: yes, 2017
The quest for Earth-like, extrasolar planets (exoplanets), especially those located inside the habitable zone of their host stars, requires techniques sensitive enough to detect the faint signals produced by those planets.
A. Reiners   +42 more
core   +1 more source

Habitable exoplanet - a statistical search for life

open access: yesFrontiers in Astronomy and Space Sciences
IntroductionThe identification of habitable exoplanets is an important challenge in modern space science, requiring the combination of planetary and stellar parameters to assess conditions that support life.MethodsUsing a dataset of 5867 exoplanets from ...
Prasenjit Banerjee   +1 more
doaj   +1 more source

Exoplanet Catalogues

open access: yes, 2018
One of the most exciting developments in the field of exoplanets has been the progression from 'stamp-collecting' to demography, from discovery to characterisation, from exoplanets to comparative exoplanetology. There is an exhilaration when a prediction
A Wolszczan   +20 more
core   +1 more source

Exoplanets - search methods, discoveries, and prospects for astrobiology [PDF]

open access: yes, 2008
Whereas the Solar System has Mars and Europa as the best candidates for finding fossil/extant life as we know it - based on complex carbon compounds and liquid water - the 263 (non-pulsar) planetary systems around other stars as known at 15 September ...
Jones, Barrie W
core   +2 more sources

Exoplanet phase curves: observations and theory

open access: yes, 2018
Phase curves are the best technique to probe the three dimensional structure of exoplanets' atmospheres. In this chapter we first review current exoplanets phase curve observations and the particular challenges they face.
A Shporer   +81 more
core   +1 more source

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