Articles tagged with Gravitational Fields
Researchers at Nagoya University have developed a method to detect hidden matter around black holes by analyzing changes in ringdown waves. The study found that hidden matter affects ringdown differently depending on its pressure arrangement around the black hole.
Researchers have created a 3D map of a hidden 'rock glacier' in the Wasatch Mountains, one of over 800 in Utah, and found it contains enough frozen water to fill 600 Olympic swimming pools. The study uses a novel technique to image the 3D ice body within a large rock glacier, revealing the scale of ice storage in Utah's mountains.
Researchers propose a multiple-moon-aided Jovian capture method utilizing solar gravity perturbation (SGP) to reduce velocity increments. The study uses four dynamic models and computes datasets to analyze the mechanism of SGP, revealing its influence on perijove radius change.
A new study by Queen Mary University mathematician Professor Ginestra Bianconi proposes a perspective on the deep question of how the Universe can become increasingly structured while obeying the second law of thermodynamics. The Gravity from Entropy theory suggests that gravity and spacetime may have an intrinsic thermodynamic and inf...
Researchers tracked galaxy clusters to test gravity's strength, finding it weakens with distance as predicted by Newton and Einstein. The study confirms the existence of invisible dark matter, closing the door on alternative theories like Modified Newtonian Dynamics.
The lack of widely accepted standards for managing reproductive health risks in space is a pressing concern. Limited reliable data from human studies shows that space can be hostile to human biology, with conditions like altered gravity, cosmic radiation, and circadian disruption affecting reproductive processes.
Researchers at Goethe University Frankfurt used complex simulations to study the origin of powerful jets emitted by black holes. They discovered that magnetic reconnection is involved in extracting rotational energy and powering these jets.
A newly detected black hole merger has provided the clearest evidence yet of how black holes work, confirming fundamental predictions by Albert Einstein and Stephen Hawking. The observations reveal insights into the properties of black holes and the nature of space-time, hinting at how quantum physics and general relativity fit together.
A computer modeling study found that glacial isostatic adjustment caused downward movements in the eastern US, while upward movements occurred in eastern Canada, contributing to relative sea-level rise. The research will help generate maps for aquifer management and inform decisions on sea-level rise impacts.
Researchers at TU Graz have achieved more accurate orbit predictions for satellites using satellite laser ranging, combining gravity field measurements with SLR. This allows for a better understanding of existing water masses and safer orbits for space debris.
A team of researchers successfully demonstrated the principles of gravity-mediated entanglement in a photonic quantum simulation. This breakthrough provides crucial insights into the nature of gravity and its interaction with quantum mechanics.
Physicists at the University of Southampton successfully detect weak gravitational pull on microscopic particles using a new technique. The experiment, published in Science Advances, could pave the way to finding the elusive quantum gravity theory.
New studies show that giant gas planets in nearby star systems can prevent life on smaller, rocky planet neighbors by kicking them out of orbit and wreaking havoc on their climates. Researchers found that four giant planets in the HD 141399 system are likely to destroy the chances for life on Earth-like planets.
Researchers confirmed that antimatter falls under the influence of gravity, ruling out gravitational repulsion as a cause for its absence in the universe. The study used an antihydrogen experiment to observe individual atoms taking a downward path, providing a definitive answer to long-standing questions about antimatter's behavior.
Researchers suggest LISA can detect scalar fields interacting with gravity, providing strong bounds on theories beyond General Relativity. Extreme Mass Ratio Inspirals offer a unique probe of the strong-field regime of gravity.
Scientists at RIKEN have found that matter and antimatter respond to gravity in the same way, within an accuracy of four times more precise than previous measures. This suggests that causality and locality hold in relativistic quantum field theories, potentially leading to new physics.
Researchers simulate condensate behavior during inflationary period, revealing gravitational disintegration mechanism. The simulation provides new insights into the formation of dark matter and potential predictions for cosmological observables.
A new study confirms Lense-Thirring precession - a phenomenon of relativistic frame-dragging - in a distant binary star system. The research observes a long-term drift in the orbital parameters due to the rapidly rotating white dwarf companion, confirming Einstein's general theory of relativity.
Researchers used Curiosity's repurposed inertial measurement units to detect subtle variations in gravitational fields, contradicting the theory of a buried rock layer. The study suggests that Mount Sharp formed largely in its current form as a free-standing mound within Gale crater.
Researchers have discovered a faster method for estimating large earthquake magnitudes by analyzing 'elasto-gravity' signals, which travel at the speed of light. These signals consistently arrive before seismic wave counterparts, allowing for near-real-time magnitude detection and more accurate estimates.
Astronomers found that the Galaxy's gravitational field can interfere with determining the coordinates of distant objects, causing a
A new system devised by Dr. Ravit Helled measures Saturn's rotation period, offering a more accurate determination of the planet's internal structure, weather patterns, and formation process. The method applies to other gas planets in the solar system, including Uranus and Neptune.
A study published in Surveys in Geophysics found that the hydrological model WaterGAP underestimates seasonal continental water storage fluctuations and fails to retain rainwater for a long time. The researchers used GPS observations and GRACE satellite data to identify shortcomings in the model.
A team of scientists has determined that the atmospheric layer on Uranus and Neptune extends only about 1000 km in depth, a significant finding that challenges current understanding of these planets' weather systems. This discovery was made possible by analyzing gravitational field data using novel methods.
Researchers develop three methods to improve gravitational field models of Phobos, using high-resolution shape data and comparisons show good consistency. The updated model provides a more detailed understanding of Phobos' physical properties, including its volume and surface gravity.
Researchers have revised estimates of Greenland and West Antarctica ice cap melting rates using GRACE satellites, GPS measurements, and glacial isostatic adjustment data. The corrected estimate shows the ice caps are melting at approximately half the predicted speed, resulting in a lower average sea level rise.
The GOCE satellite has determined precise gravitational forces in the Himalayas, confirming previous hypotheses of inaccuracies in conventional models. The satellite's data will contribute to a better understanding of geophysical processes, including earthquakes and ocean circulation.
The Gravity Recovery and Interior Laboratory (GRAIL) mission will precisely map the moon's gravitational pull, revealing differences in density of the moon's crust and mantle. The detailed information gained will facilitate future manned or unmanned missions to land on the moon.