Results 1 to 10 of about 32,755 (312)
Stellar clustering shapes the architecture of planetary systems [PDF]
Nature, 2020 Andrew J Winter +2 more
exaly +2 more sources
The protoplanetary disc HD 163296 as observed by ALMA
Vietnam Journal of Science, Technology and Engineering, 2022 HD 163296 is one of the few protoplanetary discs displaying rings in the dust component. The present work uses ALMA observations of the 0.9 mm continuum emission, which have significantly better spatial resolution (~8 au) than previously available, to ...
P.N. Diep +6 more
doaj +1 more source
Earth, Planets and Space, 2023 We report the first experiments, where simultaneous electrical resistivity and elastic wave velocity measurements are acquired during the triaxial deformation of granite under brine-saturated conditions.
Ikuo Katayama +4 more
doaj +1 more source
Planetary Systems Biology [PDF]
Molecular Cell, 2005 Combining paleogenetics, protein engineering, synthetic biology, and metabolic modeling, a planetary biology perspective is brought to bear on adaptive evolutionary events in ancient bacteria.
Department of Chemistry, University of Florida, Gainesville, FL 32611 USA ( host institution ) +2 more
openaire +3 more sources
The ALMA survey to Resolve exoKuiper belt Substructures (ARKS)
Astronomy & AstrophysicsContext. CO gas has been detected in ~20 debris discs, typically classified as CO-poor or CO-rich. We present observations of the CO-rich HD 121617 debris disc as part of the ALMA survey to Resolve exoKuiper belt Substructures (ARKS). Aims.
Brennan A. +26 more
doaj +7 more sources
Universe, 2022 Only a low percentage of the radiation from our Sun is captured by photosynthesis, but this conversion of solar to chemical energy sustains all life on Earth.
Pablo Marcos-Arenal +7 more
doaj +1 more source
The Planetary Theory of Solar Activity Variability: A Review
Frontiers in Astronomy and Space Sciences, 2022 Commenting the 11-year sunspot cycle, Wolf (1859, MNRAS 19, 85–86) conjectured that “the variations of spot-frequency depend on the influences of Venus, Earth, Jupiter, and Saturn.” The high synchronization of our planetary system is already nicely ...
Nicola Scafetta, Antonio Bianchini
doaj +1 more source
Saving Planetary Systems: Dead Zones and Planetary Migration [PDF]
The Astrophysical Journal, 2007 The tidal interaction between a disk and a planet leads to the planet's migration. A long-standing question regarding this mechanism is how to stop the migration before planets plunge into their central stars. In this paper, we propose a new, simple mechanism to significantly slow down planet migration, and test the possibility by using a hybrid ...
Matsumura, Soko +2 more
openaire +3 more sources
Universe, 2021 The growing database of exoplanets has shown us the statistical characteristics of various exoplanet populations, providing insight towards their origins.
Jonathan H. Jiang +4 more
doaj +1 more source
Machines, 2023 Planetary gear systems have many advantages over other gear systems. Previous studies on its dynamic characteristics mostly used Earth as the reference system, which is inconsistent with the actual working conditions of many planetary gear systems, such ...
Bingwei Gao, Yongkang Wang, Guangbin Yu
doaj +1 more source