Articles tagged with Gravitational Waves
A new study from Vanderbilt University presents a compelling roadmap for capturing multiband observations of gravitational waves emitted by intermediate-mass black holes. This could help fill in the gaps in our understanding of these enigmatic objects, allowing scientists to 'hear the entire song' when it comes to black holes.
Researchers propose a new theory on how massive, spinning black holes form near supermassive black holes at the centers of active galactic nuclei. This 'Pac-Man-like' behavior offers a natural explanation for high-mass binary black hole mergers and could help understand galaxy growth.
Researchers at EPFL have found unexpected constraints on the achievable sensitivity of measurements, even with backaction-evading techniques. Tiny deviations in optical and mechanical frequencies can cause mechanical oscillations to amplify out of control, affecting quantum sensors and applications.
The NSF awards $2.8M to develop a Scalable Cyberinfrastructure Institute for Multi-Messenger Astrophysics (SCIMMA) to analyze large-scale distributed data. The project aims to accelerate scientific discovery in multi-messenger astrophysics by facilitating global collaborations.
A team led by Prof Swati Singh is exploring the use of quantum systems to study astrophysical phenomena. They are developing smaller detectors that can be used to detect weak forces exerted by dark matter and gravitational waves, which could provide new insights into these mysteries.
Researchers have developed a laser prototype that nearly meets the stringent requirements for the Laser Interferometer Space Antenna (LISA) mission. The laser system features a seed laser, YDFA amplifiers, and an optical reference cavity to improve spectral purity and stability.
Astrophysicists detected gravitational wave 'tones' emitted by a merging black hole, validating the 'no-hair theory' and confirming Einstein's general relativity. The breakthrough comes 10 years earlier than expected and opens the era of understanding black holes and their properties.
For the first time, scientists have detected two specific tones, or overtones, in the
Physicists detected the ringing of a newborn black hole for the first time, confirming Einstein's theory and the idea that black holes have no 'hair.' The findings support the notion that black holes are bald-faced giants with no extraneous properties.
University of Arizona researchers are using the Catalina Sky Survey's near-Earth object telescopes to find optical counterparts to gravitational waves triggered by massive mergers. The team found several supernovae and a near-Earth object during their ongoing campaign, which began in April.
A new study suggests that stellar collapse causes instabilities, preventing the formation of heavier black holes. The researchers propose that nuclear star clusters might act as 'black-hole nurseries', providing an ideal environment for generating generations of black holes.
The discovery of ZTF J1539+5027 is the fastest known eclipsing white dwarf binary, with an orbit period of only 6.91 minutes, making it a valuable target for gravitational wave studies. The system is expected to be one of the strongest sources of gravitational waves detectable by LISA, the future space-based gravitational wave detector.
A team of astronomers has discovered a pair of titanic supermassive black holes on a collision course, which will soon emit powerful gravitational waves dwarfing those from smaller black hole mergers. The discovery can aid in estimating the number of nearby supermassive black holes emitting detectable gravitational waves.
Astronomers have developed a new method to measure the expansion of the Universe by analyzing neutron star mergers and gravitational waves. This technique uses the orientation of the gravitational wave signal to determine the distance, providing a new 'cosmic ruler' for measuring the Hubble Constant.
Researchers at the Niels Bohr Institute have developed an experimental platform that exceeds the Standard Quantum Limit, enabling precise force and position measurements. The breakthrough has potential implications for gravitational wave astronomy techniques and biological applications, offering a 30% improvement in precision.
New research identifies three persistent gravitational wave observables that provide insight into the intrinsic properties of gravitational waves. These observables could someday help extract information from the Cosmic Microwave Background, offering a new window on the universe.
West Virginia University researchers aim to unlock secrets of gravitational waves from binary black hole collisions with public computing power. They are building a website with downloadable software to generate self-consistent simulations, covering gaps in knowledge about gravitational wave parameters.
The 2019 APS April Meeting features talks on Event Horizon Telescope project's first results, nucleosynthesis in neutron star mergers, and the proposed AMEGO mission. These discoveries shed light on black holes, dark matter, and the universe's evolution.
Physicists have created a device that can detect and measure quantum radiation pressure noise, a significant source of uncertainty in gravitational wave detectors. The breakthrough aims to improve the sensitivity of next-generation detectors, potentially leading to more accurate detections.
Researchers from UCL and Flatiron Institute develop technique to calculate gravitational wave data, enabling accurate measurement of Hubble constant. By observing 50 binary neutron stars over the next decade, scientists can resolve the long-standing debate on the universe's expansion rate.
Measurements of gravitational waves from binary neutron stars will definitively resolve the debate on the universe's expansion rate. By observing 50 binary neutron stars over the next decade, scientists can calculate the Hubble constant accurately, resolving the conflict between conflicting measurements.
The $US30 million Advanced LIGO Plus project will improve the two existing Laser Interferometer Gravitational wave Observatories (LIGO) in the United States and include a new LIGO India facility. This upgrade is expected to significantly increase the number and strength of gravitational wave detections.
Researchers developed a compact, environmentally stable laser with an ultra-narrow linewidth of 20 hertz, suitable for improving GPS accuracy and detecting gravitational waves. The laser's stability is maintained through self-referencing temperature sensing, allowing precise correction signals to be applied.
Researchers from HZDR found that Bose-Einstein condensates, which can be thought of as heavily diluted vapor from individual atoms cooled to extreme temperatures, are not sensitive enough to detect gravitational waves. The team discovered that the power of these gravitational waves is too weak to be measured using current methods.
The LIGO and Virgo collaborations have detected 10 stellar-mass binary black hole mergers and one neutron star merger, with six of the black hole events previously reported. The new detections include GW170729, GW170809, GW170818, and GW170823, which are included in a new catalog of gravitational-wave events.
A new study predicts that gravitational wave readings from neutron star collisions can accurately measure the Hubble constant, improving current disputed results. With 25 readings, accuracy will reach 3%, narrowing to 1% with 200 readings.
Researchers have identified a direct relative of the historic neutron star merger that produced the first simultaneous detection of light and gravitational waves. The newly described object, named GRB150101B, shares remarkable similarities with GW170817 and suggests that these events may be from the same family of objects.
Physicists at University of Innsbruck and TU Wien demonstrate that elliptical polarization causes a spiral shape in light wavefronts, leading to a distorted image of actual structures. This systematic error can affect biomedical research, super-resolution microscopy, and even astronomical object position estimation.
Researchers used mathematical abstraction to describe gravitational waves as functions that remain invariant during distribution. They found arbitrary functions can be set to encode information, allowing for spatial transmission without distortions.
Researchers at Rochester Institute of Technology have built the first simulation to predict light signals from supermassive black hole binaries nearing merger. The model combines information gathered from light- and gravitational waves, enabling scientists to identify these monster collisions with existing and future telescopes.
Astronomers used a continent-wide collection of radio telescopes to observe the aftermath of a neutron star merger and confirmed the presence of a narrow, fast-moving jet of material. The jet moved at nearly the speed of light and was likely powered by the gravitational energy released during the merger.
A group of scientists from the Niels Bohr Institute aim to improve gravitational wave detectors by incorporating a 'filter' made of cesium atoms, which can neutralize Quantum Back Action and increase accuracy. The development is expected to show proof of concept within three years.
Researchers propose using gravitational waves to estimate the Hubble constant and measure the rate of the expanding universe. By detecting gravitational waves from rare black hole-neutron star binary systems, scientists can obtain an independent and precise measurement of their distance and velocity.
Researchers set limits on neutron star sizes by analyzing billions of theoretical models, refining estimates to within 1.5 kilometers. The study also explores the possibility of 'twin stars' with exotic properties, which are statistically rare and unlikely to be deformed during mergers.
Researchers confirmed that last fall's union of two neutron stars caused a short gamma-ray burst, revealing a key relationship between binary neutron star mergers, gravitational waves and GRBs. Short gamma-ray bursts are the universe's most powerful electromagnetic events.
A new model proposes that dark inflation drove the early universe's expansion and predicts the detectability of primordial gravitational waves. The model provides a precise chronology of events during the first moments after the Big Bang.
Scientists from Goethe University Frankfurt and the Frankfurt Institute for Advanced Studies have developed a novel simulation code, ExaHyPE, to calculate gravitational waves on exascale supercomputers. This breakthrough allows for more accurate simulations of black hole mergers and other astrophysical phenomena.
A new study predicts that LISA will detect dozens of binaries in the Milky Way's globular clusters, containing various compact object combinations. This will expand the breadth of the gravitational wave spectrum, allowing for exploration of different types of objects not observable with LIGO.
Researchers have developed a way to detect gravitational waves from faint black hole mergers, allowing them to study populations of black holes at vast distances. The new method is estimated to be one thousand times more sensitive than previous techniques, and will enable the detection of thousands of previously hidden black holes.
Nicolas Yunes and Emanuele Berti will study colliding black holes with the Laser Interferometer Space Antenna (LISA) detector, which could help understand Einstein's theory of gravity. The data from LISA will analyze gravitational waves produced during mega-collisions, shedding light on extreme environments.
Researchers predict characteristic light signals from supermassive black holes before merger using multimessenger astrophysics. The study simulates binary black hole collisions and provides insights into electromagnetic signals accompanying gravitational waves.
BurstCube will detect gamma-ray bursts caused by massive star collapses and neutron star mergers, as well as solar flares. The mission uses miniaturized detector technology to study these high-energy events and their origins.
Professor James Hough receives the Gold Medal for his seminal contribution to gravitational waves, while Professor Robert White is awarded for a lifetime of distinguished achievement in solid Earth geophysics. The awards recognize significant achievements in astronomy and geophysics across various fields.
The observation of two neutron stars merging generated tiny ripples in spacetime called gravitational waves, detected by LIGO detectors on Earth. This event also triggered an explosion studied by hundreds of astronomers worldwide, marking a major breakthrough in astrophysics and offering new tools for observing the universe.
Astronomers detected radio waves from a neutron-star collision, confirming a new explanation for the phenomenon. The observations suggest a 'cocoon' model, where the jet gathers up surrounding material, producing broad electromagnetic radiation.
The collision produced gravitational waves and detected radio waves, which led to the discovery of a 'cocoon', a broader outflow of radio-emitting material, rather than a fast-moving jet. This finding provides more insight into short gamma-ray bursts.
A team of researchers has discovered a Z-shaped structure in a microquasar, which challenges current theories on gravitational wave emission from distant radio galaxies. The study suggests that these structures may form through hydrodynamic interactions rather than black hole fusion.
The neutron star collision has challenged existing theories of dark energy and gravity, ruling out a class of dark energy theories that modify gravity. The observation also supports the simplest theories, suggesting that the timing between gravitational waves and light is crucial in understanding these phenomena.
Researchers at Kyoto University have proposed a new theory on the formation of binary black holes within collapsing stars. Their study suggests that these black holes could form through dynamical fragmentation of the star's inner core, leading to two fragments becoming black holes and orbiting each other.
Researchers propose using gravitational wave experiments to detect merger events at redshifts greater than 40, which could indicate the presence of primordial black holes or non-Gaussianity in the early universe. A detection would bolster theories about dark matter, while a non-detection would cast doubt.
Astronomers predict that gravitational waves generated by the merger of two supermassive black holes will be detected within 10 years using pulsar timing array data. The study estimates a 100% chance of detecting something in 10 years, with bigger galaxies offering longer detection windows.
Researchers at RIT suggest that outer gas disks of big spiral galaxies are suitable for hosting orbiting black holes and merging massive black holes. This discovery could help explain how black-hole pairs form and provide a new way to study the universe using gravitational waves and traditional light measurements.
A proposed NASA mission employs lobster-eye optics to locate the source of gravitational waves, a key feature in understanding cosmic ripples. The Transient Astrophysics Observatory on the International Space Station aims to characterize and alert other observatories to these events.
The collision of neutron stars has been observed directly for the first time, confirming a key aspect of Albert Einstein's General Relativity theory. The detection, made possible by a global research collaboration, reveals that gravitational waves and gamma ray bursts are produced during these collisions.
The Los Alamos team used supercomputers to analyze gravitational wave data from a neutron star merger, confirming the formation of heavy elements beyond iron. The observation also provided the first direct detection of gravitational waves in gamma rays, confirming Einstein's prediction.
For the first time, astronomers have observed a celestial event through both conventional telescopes and gravitational waves. The collision of two super-dense neutron stars just 120 million light-years from Earth was captured by both gravity wave observatories and telescopes.
Researchers witnessed electromagnetic signals associated with the gravitational wave emission from a neutron star merger, complementing observations from multiple telescopes. This breakthrough marks the beginning of Multi-Messenger astrophysics, allowing scientists to study single events using various techniques.
The detection of light from a neutron star merger reveals the formation of heavy elements like gold and platinum. The observations support theoretical predictions and provide new insights into astrophysics.
For the first time, scientists have detected the collision of two neutron stars using both gravitational waves and light. The historic discovery ushers in a new era in astronomy with multi-messenger astronomy, confirming theoretical predictions and providing new mysteries to understand.
Researchers from the J-GEM collaboration observed a kilonova explosion, a phenomenon predicted to create heavy elements through rapid neutron capture reactions. The first-ever confirmed kilonova was detected using a network of telescopes worldwide, providing insight into the universe's heavy element production.