Results 1 to 10 of about 455,376 (292)

An Informational–Entropic Approach to Exoplanet Characterization [PDF]

Entropy
In the past, measures of the “Earth-likeness” of exoplanets have been qualitative, considering an abiotic Earth, or requiring discretionary choices of what parameters make a planet Earth-like.
Sara Vannah, Ian D. Stiehl, Marcelo Gleiser   +2 more
doaj   +2 more sources

Planet Earth [PDF]

, 1990
A planets surface provides geologists with clues as to what is happening inside. But many of these clues are ambiguous because so many other processes (impacts and erosion, for example) contribute to surface characteristics.
Anderson, Don L.
openaire   +4 more sources

CoRoT’s first seven planets: An overview*

EPJ Web of Conferences, 2011
The up to 150 day uninterrupted high-precision photometry of about 100000 stars – provided so far by the exoplanet channel of the CoRoT space telescope – gave a new perspective on the planet population of our galactic neighbourhood.
Barge P., Lammer H., Schneider J., Dvorak R., Wuchterl G.   +4 more
doaj   +3 more sources

Implications of the TTV-detection of close-in terrestrial planets around M stars for their origin and dynamical evolution

EPJ Web of Conferences, 2011
It has been shown that an Earth-size planet or a super-Earth, in resonance with a transiting Jupiter-like body around an M star, can create detectable TTV signals (Kirste & Haghighipour, 2011).
Rastegar S., Haghighipour N.
doaj   +3 more sources

Inferring the instability of a dynamical system from the skill of data assimilation exercises [PDF]

Nonlinear Processes in Geophysics, 2021
Data assimilation (DA) aims at optimally merging observational data and model outputs to create a coherent statistical and dynamical picture of the system under investigation.
Y. Chen, Y. Chen, A. Carrassi, A. Carrassi, A. Carrassi, V. Lucarini, V. Lucarini   +6 more
doaj   +1 more source

Lévy noise versus Gaussian-noise-induced transitions in the Ghil–Sellers energy balance model [PDF]

Nonlinear Processes in Geophysics, 2022
We study the impact of applying stochastic forcing to the Ghil–Sellers energy balance climate model in the form of a fluctuating solar irradiance. Through numerical simulations, we explore the noise-induced transitions between the competing warm and ...
V. Lucarini, V. Lucarini, V. Lucarini, L. Serdukova, L. Serdukova, G. Margazoglou, G. Margazoglou   +6 more
doaj   +1 more source

The Brahmavarta Initiative: A Roadmap for the First Self-Sustaining City-State on Mars

Universe, 2022
The vast universe, from its unfathomable ends to our very own Milky Way galaxy, is comprised of numerous celestial bodies—disparate yet each having their uniqueness.
Arvind Mukundan, Hsiang-Chen Wang
doaj   +1 more source

Geodesy in Japan: legends and highlights

Earth, Planets and Space, 2020
Here, I review modern history of geodesy and geodynamics in Japan, highlighting a few episodes during the last two centuries. The review starts with the first measurement of the meridional arc length in Japan by Tadataka Ino (1745–1818) early in the ...
Kosuke Heki
doaj   +1 more source

Evolution of a Water-rich Atmosphere Formed by a Giant Impact on an Earth-sized Planet

The Astrophysical Journal, 2023
The atmosphere of a terrestrial planet that is replenished with secondary gases should have accumulated hydrogen-rich gas from its protoplanetary disk.
Kenji Kurosaki, Yasunori Hori, Masahiro Ogihara, Masanobu Kunitomo   +3 more
doaj   +1 more source

A decade since the International Year of Planet Earth - Earth Sciences for society

Journal of the Geological Survey of Brazil, 2020
Developed between 2007 and 2008, the International Year of Planet Earth (IYPE) was proclaimed by United Nations Organization with the objective to divulge the importance of the Earth Sciences for society and to alert for the main problems mankind will ...
Carlos Oití Berbert
doaj   +1 more source