Results 61 to 70 of about 8,820 (196)

Mind and Cosmos as Throughput Systems: A Convergence Through the Throughput Model

open access: yesSystems Research and Behavioral Science, Volume 43, Issue 3, Page 1212-1228, May/June 2026.
ABSTRACT This paper advances a conceptual and mathematical foundations approach by applying the throughput model (TPM) to cosmic phenomena, reframing the universe as an extended information processing system. TPM's four stages, Perception, Information, Judgement and Decision Choice, are reformulated in explicit information‐theoretic and dynamical ...
Waymond Rodgers
wiley   +1 more source

Statistical Distribution Function of Orbital Spacings in Planetary Systems

open access: yesThe Astronomical Journal
The minimum orbital separation of planets in long-stable planetary systems is often modeled as a step function, parameterized with a single value ${{\rm{\Delta }}}_{\min }$ (measured in mutual Hill radius of the two neighboring planets).
Jeremy Dietrich   +2 more
doaj   +1 more source

A Dynamic Scheme to Assess Habitability of Exoplanets

open access: yes, 2012
In the next few years, the number of catalogued exoplanets will be counted in the thousands and with it the need will arise to prioritize them in regard to habitability and the potential presence of life. Here, we suggest a first attempt of a dynamic scheme for classification based on our current understanding of parameters that are consistent and ...
Schulze-Makuch, D.   +7 more
openaire   +2 more sources

Mass-radius relationships for exoplanets

open access: yes, 2011
For planets other than Earth, interpretation of the composition and structure depends largely on comparing the mass and radius with the composition expected given their distance from the parent star.
Ackland   +43 more
core   +1 more source

The CoRoT Exoplanet program : status & results [PDF]

open access: yes, 2011
The CoRoT satellite is the first instrument hunting for planets from space. We will review the status of the CoRoT/Exoplanet program. We will then present the CoRoT exoplanetary systems and how they widen the range of properties of the close-in ...
Bordé, P.   +3 more
core   +2 more sources

Modeling the Seasonality of Wind‐Driven Hydrocarbon Waves in Titan's Polar Lakes

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract Titan, the only body in the solar system aside from Earth with standing liquids on its surface, has high‐latitude hydrocarbon lakes and seas. As Titan's atmosphere generates light winds, there should be waves on the surface of these lakes and seas, yet, direct wave observations are scant.
Charlene E. Detelich   +8 more
wiley   +1 more source

Dynamical Mass of the Exoplanet Host Star HR 8799

open access: yesThe Astronomical Journal, 2022
Abstract HR 8799 is a young A5/F0 star hosting four directly imaged giant planets at wide separations (∼16–78 au), which are undergoing orbital motion and have been continuously monitored with adaptive optics imaging since their discovery over a decade ago. We present a dynamical mass of HR 8799 using 130 epochs of relative astrometry of
Aldo G. Sepulveda, Brendan P. Bowler
openaire   +2 more sources

The barycentric motion of exoplanet host stars: tests of solar spin-orbit coupling

open access: yes, 2010
Empirical evidence suggests a tantalising but unproven link between various indicators of solar activity and the barycentric motion of the Sun. The latter is exemplified by transitions between regular and more disordered motion modulated by the motions ...
Baliunas   +51 more
core   +1 more source

Impact of Stellar Dynamics on the Frequency of Giant Planets in Close Binaries [PDF]

open access: yes, 2006
Hostile tidal forces may inhibit the formation of Jovian planets in binaries with semimajor axes of ≾50 AU, binaries that might be called "close" in this context. As an alternative to in situ planet formation, a binary can acquire a giant planet when one
Muterspaugh, Matthew, Pfahl, Eric
core   +2 more sources

Volcanism at Piton de la Fournaise as an Analog for Chloris Mons, Venus

open access: yesJournal of Geophysical Research: Planets, Volume 131, Issue 5, May 2026.
Abstract Identifying and investigating terrestrial analogs for Venus volcanic activity is necessary to prepare for the planned upcoming missions to Venus. We propose volcanism at Piton de la Fournaise, a frequently active oceanic shield volcano, as an analog to volcanism at Chloris Mons, Venus.
Evan G. K. Cooper   +5 more
wiley   +1 more source

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