Results 41 to 50 of about 171,913 (339)
Formation of Giant Planet Satellites [PDF]
The Astrophysical Journal, 2020 Abstract Recent analyses have shown that the concluding stages of giant planet formation are accompanied by the development of a large-scale meridional flow of gas inside the planetary Hill sphere. This circulation feeds a circumplanetary disk that viscously expels gaseous material back into the parent nebula, maintaining the system in a
Batygin, Konstantin +1 more
openaire +7 more sources
A Potential Site for Wide-orbit Giant Planet Formation in the IM Lup Disk
The Astrophysical Journal Letters, 2023 The radial transport, or drift, of dust has taken a critical role in giant planet formation theory. However, it has been challenging to identify dust drift pileups in the hard-to-observe inner disk. We find that the IM Lup disk shows evidence that it has
Arthur D. Bosman +4 more
doaj +1 more source
The birth environment of planetary systems [PDF]
Royal Society Open Science, 2020 Star and planet formation are inextricably linked. In the earliest phases of the collapse of a protostar, a disc forms around the young star and such discs are observed for the first several million years of a star’s life.
Richard J. Parker
doaj +1 more source
Tilted circumbinary planetary systems as efficient progenitors of free-floating planets [PDF]
arXiv, 2023 The dominant mechanism for generating free-floating planets has so far remained elusive. One suggested mechanism is that planets are ejected from planetary systems due to planet-planet interactions. However, instability around a single star requires a very compactly spaced planetary system.
arxiv
Modeling Planetary System Formation with N-Body Simulations: Role of Gas Disk and Statistics Comparing to Observations [PDF]
Astrophys.J.732:66,2011, 2009 During the late stage of planet formation when Mars-size cores appear, interactions among planetary cores can excite their orbital eccentricities, speed their merges and thus sculpture the final architecture of planet systems. This series of work contributes to the final assembling of planet systems with N-body simulations, including the type I and II ...
arxiv +1 more source
Formation of Hot Planets by a combination of planet scattering, tidal circularization, and Kozai mechanism [PDF]
, 2008 We have investigated the formation of close-in extrasolar giant planets through a coupling effect of mutual scattering, Kozai mechanism, and tidal circularization, by orbital integrations. We have carried out orbital integrations of three planets with Jupiter-mass, directly including the effect of tidal circularization.
arxiv +1 more source
Dynamics of Aggregation in Systems of Self-Propelled Rods
EntropyWe highlight camphene–camphor–polypropylene plastic as a useful material for self-propelled objects that show aggregation while floating on a water surface.
Richard J. G. Löffler, Jerzy Gorecki
doaj +1 more source
On The History and Future of Cosmic Planet Formation [PDF]
, 2015 We combine constraints on galaxy formation histories with planet formation models, yielding the Earth-like and giant planet formation histories of the Milky Way and the Universe as a whole. In the Hubble Volume (10^13 Mpc^3), we expect there to be ~10^20 Earth-like and ~10^20 giant planets; our own galaxy is expected to host ~10^9 and ~10^10 Earth-like
arxiv +1 more source
Formation of the Giant Planets [PDF]
Progress of Theoretical Physics, 1980 The structure of a gaseous envelope surrounding a icy/rocky core is studied in consideration of radiative transfer. It is found that when the core grows beyond a critical core mass, the envelope cannot be in equilibrium and collapses onto the core to form a proto-giant planet.
openaire +4 more sources
Possible role of human ribonuclease dicer in the regulation of R loops
FEBS Open Bio, EarlyView.R loops play an important role in regulating key cellular processes such as replication, transcription, centromere stabilization, or control of telomere length. However, the unscheduled accumulation of R loops can cause many diseases, including cancer, and neurodegenerative or inflammatory disorders. Interestingly, accumulating data indicate a possible
Klaudia Wojcik +2 more
wiley +1 more source