Post-main-sequence planetary system evolution [PDF]
Royal Society Open Science, 2016 The fates of planetary systems provide unassailable insights into their formation and represent rich cross-disciplinary dynamical laboratories. Mounting observations of post-main-sequence planetary systems necessitate a complementary level of theoretical
Dimitri Veras
doaj +4 more sources
Oxygenation, Life, and the Planetary System during Earth's Middle History: An Overview. [PDF]
Astrobiology, 2021 The long history of life on Earth has unfolded as a cause-and-effect relationship with the evolving amount of oxygen (O2) in the oceans and atmosphere.
Lyons TW +4 more
europepmc +2 more sources
Earth beyond six of nine planetary boundaries
Science Advances, 2023 This planetary boundaries framework update finds that six of the nine boundaries are transgressed, suggesting that Earth is now well outside of the safe operating space for humanity.
Katherine Richardson +2 more
exaly +2 more sources
Outside the Safe Operating Space of the Planetary Boundary for Novel Entities
Environmental Science & Technology, 2022 We submit that the safe operating space of the planetary boundary of novel entities is exceeded since annual production and releases are increasing at a pace that outstrips the global capacity for assessment and monitoring. The novel entities boundary in
Linn Persson +2 more
exaly +2 more sources
Planetary justice: Prioritizing the poor in earth system governance
Earth System Governance, 2020 We are in the middle of a planetary crisis that urgently requires stronger modes of earth system governance. At the same time, calls for justice are becoming increasingly pronounced in sustainability research: there can be no effective planetary ...
Prakash Kashwan +3 more
doaj +2 more sources
Agriculture production as a major driver of the Earth system exceeding planetary boundaries
Ecology and Society, 2017 We explore the role of agriculture in destabilizing the Earth system at the planetary scale, through examining nine planetary boundaries, or "safe limits": land-system change, freshwater use, biogeochemical flows, biosphere integrity, climate change ...
Bruce M. Campbell +9 more
doaj +2 more sources
TOI-1136 is a Young, Coplanar, Aligned Planetary System in a Pristine Resonant Chain [PDF]
Astronomical Journal, 2022 Convergent disk migration has long been suspected to be responsible for forming planetary systems with a chain of mean-motion resonances (MMRs). Dynamical evolution over time could disrupt the delicate resonant configuration. We present TOI-1136, a 700 ±
F. Dai +62 more
semanticscholar +1 more source
Architectures of Exoplanetary Systems. II. An Increase in Inner Planetary System Occurrence toward Later Spectral Types for Kepler’s FGK Dwarfs [PDF]
Astronomical Journal, 2020 The Kepler mission observed thousands of transiting exoplanet candidates around hundreds of thousands of FGK dwarf stars. He et al. applied forward modeling to infer the distribution of intrinsic architectures of planetary systems, developed a clustered ...
M. He, E. Ford, D. Ragozzine
semanticscholar +1 more source
A precise architecture characterization of theπMensae planetary system [PDF]
Astronomy & Astrophysics, 2020 Context.The bright starπMen was chosen as the first target for a radial velocity follow-up to test the performance of ESPRESSO, the new high-resolution spectrograph at the European Southern Observatory’s Very Large Telescope.
M. Damasso +99 more
semanticscholar +1 more source
Bifurcation of planetary building blocks during Solar System formation [PDF]
Science, 2021 Two-part formation of the Solar System Measurements of meteorites have shown that the inner and outer Solar System formed from two distinct reservoirs of material.
T. Lichtenberg +4 more
semanticscholar +1 more source