Results 51 to 60 of about 3,393,330 (216)
New Phytologist, EarlyView.Proprioception controls trunk straightness in trees through opposite tension wood formation. A spherical growth chamber (a), combined with a two‐dimensional rotating clinostat (b2), suppresses gravi‐ and phototropic sensing. The tree is first tilted horizontally (b1), triggering upward gravitropic bending, actuated by tension wood formation on the ...
Alexandre Caulus +7 more
wiley +1 more source
Instabilities elucidate dynamics of supernovae blasts
Scilight, 2023 Group theory approach examines how fluid instabilities intensively mix materials as stars explode.
openaire +1 more source
Dynamics of millicharged dark matter in supernova remnants [PDF]
Physical Review D, 2020 Dark matter could have a small electromagnetic charge, provided the charge-to-mass ratio is much less than that of electrons or protons. This candidate, commonly known as millicharged dark matter (mDM), would form a plasma and interact with the interstellar medium and electromagnetic fields within galaxies. In general, understanding the dynamics of mDM
Jung-Tsung Li, Tongyan Lin
openaire +2 more sources
A Theory for Neutron Star and Black Hole Kicks and Induced Spins
The Astrophysical JournalUsing 20 long-term 3D core-collapse supernova simulations, we find that lower compactness progenitors that explode quasi-spherically due to the short delay to explosion experience smaller neutron star recoil kicks in the ∼100−200 km s ^−1 range, while ...
Adam Burrows +3 more
doaj +1 more source
Shock Breakout from Stellar Envelopes: The Relativistic Limit
The Astrophysical Journal, 2023 We calculate the observed luminosity and spectrum following the emergence of a relativistic shock wave from a stellar edge. Shock waves propagating at 0.6 < Γ _sh β _sh , where Γ _sh is the shock Lorentz factor, and β _sh is its associated reduced ...
Tamar Faran, Re'em Sari
doaj +1 more source
Rethinking microtidal systems: Tidal signatures in the fluvial deposits of the Po River, Italy
Sedimentology, EarlyView.ABSTRACT In microtidally influenced rivers, tides are generally assumed to leave virtually no signatures in the sedimentary record. However, this hypothesis has been surprisingly poorly tested using modern river analogues, which provide an opportunity to assess whether sedimentary signatures of microtidal regimes can develop in rivers that lack ...
Anna E. van Yperen +6 more
wiley +1 more source
Supernova Dynamics and Explosive Nucleosynthesis
Journal of Physics: Conference Series, 2012 Nuclear physics plays a crucial role in various aspects of core collapse supernovae. The collapse dynamic is strongly influenced by electron captures. Using modern many-body theory improved capture rates have been derived recently with the important result that the process is dominated by capture on nuclei until neutrino trapping is achieved. Following
openaire +1 more source
Supernova kicks and dynamics of compact remnants in the Galactic Centre [PDF]
Monthly Notices of the Royal Astronomical Society, 2017 12 pages, 9 figures, 4 tables; accepted for publication in ...
Bortolas E., Mapelli M., Spera M.
openaire +4 more sources
Simulating supernova feedback in galaxy disks [PDF]
, 2012 In this thesis I examine supernova feedback in hydrodynamical simulations of galaxy disks. Understanding this process entails the numerical evaluation of cooling in radiative shocks, and we present a set of simulations using two widely used numerical ...
CREASEY, PETER,EDWARD +1 more
core
Neutrino-nucleus reactions and their role in supernova dynamics and nucleosynthesis
, 2018 Neutrino reactions on nuclei play important roles for the dynamics of supernovae and their associated nucleosynthesis. This manuscript summarizes the current status in deriving the relevant cross sections for supernova neutrinos and briefly discusses a ...
Karlheinz Langanke +4 more
core +1 more source