Researchers used the HAWC Observatory to study two nearby pulsars, Geminga and PSR B0656+14, which produced high-energy positrons in cosmic rays. The analysis found that while pulsar radiation contributed some positrons, it was not enough to explain the excess.
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.
The CALET experiment has successfully measured the cosmic-ray electron spectrum up to 3 TeV, providing insight into the origin and acceleration of cosmic rays. The findings suggest the presence of nearby astrophysical sources, such as pulsars or dark matter annihilation.
Researchers have observed a sudden change in rotation speed of SXP 1062, a binary pulsar exhibiting the 'glitch' phenomenon. The discovery provides new constraints on neutron star equation of state and sheds light on the interior dynamics of these compact objects.
Astronomers have identified a millisecond pulsar spinning at more than 42,000 revolutions per minute using the Netherlands-based Low Frequency Array (LOFAR) radio telescope. The discovery provides insights into the potential for finding ultra-fast pulsars and raises questions about the fastest-spinning pulsars in the universe.
Scientists have discovered over 2,000 pulsars, which are rapidly spinning dense stellar corpses that appear to pulse at Earth. The Neutron star Interior Composition Explorer mission will reveal how nature's fundamental forces behave within the cores of these objects.
Astronomers Dr Jane Greaves and Dr Wayne Holland propose a new model for forming planets in the aftermath of a supernova explosion. They suggest that material caught up in the bow-wave around a moving neutron star could provide raw materials for future planet formation. Further data from ALMA is needed to confirm this theory.
Mathematicians used complex modeling to study a specific pulsar exhibiting 'glitching' and 'wobbling' behaviors. They found accepted theories conflict with each other, suggesting errors in current explanations.
The NICER mission will study neutron stars and pulsars, collecting X-rays to test theories of dense matter. The spacecraft will also demonstrate X-ray navigation using pulsar timing data.
The Crab Nebula has been extensively studied, yet astronomers still have much to learn. By combining data from multiple telescopes, a team of scientists gained new insights into the object's complex physics.
Astronomers have produced a highly-detailed image of the Crab Nebula by combining data from telescopes spanning nearly the entire electromagnetic spectrum. The image reveals intricate details about the nebula's structure and interactions with fast-moving particles and magnetic fields.
Astronomers have discovered a unique ultra-slow pulsar XB091D in the Andromeda galaxy, believed to have captured a companion only a million years ago. The pulsar's acceleration is linked to its interaction with an ordinary star, providing new insights into neutron star rejuvenation.
Researchers have identified an exotic binary star system as the first white dwarf pulsar ever discovered in the universe. The star, AR Scorpii, is a rapidly spinning, burnt-out stellar remnant that emits powerful beams of radiation and particles.
The study provides new insights into the distinctive geometry of pulsars and their emission signatures. The researchers found that the orientation of pulsars' spin and magnetic axes significantly affects what emissions are seen on Earth.
Researchers at Yale University developed a novel approach to detect exoplanets by analyzing signal fluctuations in star spectral intensity. By studying all signal information together, they can refine the search for Earth-like planets and improve traditional methods.
Researchers observe two X-ray pulsars transitioning to the propeller regime, providing valuable information about their magnetic fields and surrounding temperatures. The study reveals that giant outbursts are associated with the transition, offering a unique window into these intensely magnetized stars.
Scientists have detected the brightest FRB to date, providing a new understanding of the diffuse intergalactic material and its turbulence. By studying this phenomenon, researchers can gain insights into the production of cosmic magnetic fields.
A team of researchers found a way for neutron stars to avoid the 'traffic jam' that limits their brightness, enabling them to become hundreds of times brighter than expected. This discovery challenges current understanding and provides new insights into the nature of these mysterious objects.
The J.R. Macdonald Laboratory will receive a three-year, nearly $8 million grant to support its experimental and theoretical research in atomic, molecular, and optical physics. The lab is one of the largest such programs in the country, involving over 69 researchers.
Researchers at NPL and University of Leicester publish paper showing a new method to calculate spacecraft position using pulsars, increasing space mission capabilities and autonomy. The technique can achieve accuracy of 2km in one direction and 30km in 3D with minimal Earth contact.
Researchers at PPPL have developed a new method that analyzes the plasma surrounding X-ray pulsars by coupling quantum mechanics with Einstein's special relativity. This technique can determine the density and field strength of the magnetosphere in greater detail than standard approaches.
A team of astronomers has found evidence of repeated fast radio bursts (FRBs) originating from the same location in the sky, contradicting the long-held assumption that these bursts are isolated events. This discovery rules out entire classes of theoretical models and suggests that the burst source can recharge in minutes.
Researchers using NASA's Fermi Gamma-ray Space Telescope discovered a new gamma-ray pulsar in the Large Magellanic Cloud, breaking records for luminosity and age. The discovery was made after reanalyzing data from the telescope's Pass 8 process.
Researchers at the University of Southampton have developed a new method for measuring the mass of pulsars, highly magnetised rotating neutron stars. This breakthrough technique relies on principles of nuclear physics and can be used to measure the mass of young pulsars in isolation.
Scientists used Parkes telescope for 11 years to detect gravitational waves but found nothing, suggesting that black holes may merge quickly without generating waves. The lack of detection has implications for astronomers who want to use pulsar timing techniques to spot gravitational waves.
Researchers discovered neutron stars can accelerate material to nearly light speed, rivaling black holes. This finding contradicts previous theories about neutron star behavior.
Astronomers observed a record-setting flare from the blazar galaxy 3C 279, which became four times brighter than the brightest persistent source in the gamma-ray sky. The rapid fading of the flare was detected by NASA's Fermi Gamma-ray Space Telescope and other satellites.
Scientists will observe the event from radio wavelengths to gamma rays, measuring the massive star's gravity and magnetic field. The pulsar's passage through the disk will trigger astrophysical fireworks, providing a probe for studying the system.
Theoretical astrophysicists discovered that gravitational waves from merging binary neutron star systems have a characteristic spectrum similar to atomic spectral lines. This allows for the inference of neutron star properties, including equation of state and stellar structure.
The High Energy Stereoscopic System (H.E.S.S.) has detected three powerful gamma-ray sources in the Large Magellanic Cloud, including a pulsar wind nebula and a supernova remnant. These discoveries provide new insights into the formation of cosmic structures and the evolution of galaxies.
Researchers propose using photonic booms to map asteroid surfaces and study celestial objects, offering new insights into the universe. High-speed cameras could capture these flashes, revealing previously unknown information about asteroids and other cosmic bodies.
Researchers tracked the motion of a binary pulsar to measure the space-time warp caused by its two highly compact stars. The study provided new information on the effects of extreme gravity on neutron stars and binary systems.
Researchers from Spain and India found that pulsars with black holes are ideal for testing general relativity, but two cases reduce their value. The 'holy grail' pair is a normal black hole, which has yet to be discovered.
Scientists at Institute of Food Research developed a fast and cheap alternative to DNA testing for distinguishing horse meat from beef. The new method uses NMR spectroscopy to analyze the chemical composition of fat in meats, with results available in just ten minutes.
Researchers have used radio telescopes in Australia and Chile to observe the remnant of Supernova 1987A, providing insights into the explosion's aftermath. The team has also developed a three-dimensional simulation that reproduces observed features, including the persistent one-sidedness in radio images.
Astronomers have discovered a pulsar that emits an incredible amount of energy, shining brighter than previously thought possible. This find challenges the previous assumption that ultra-luminous X-ray sources are likely black holes.
Astronomers have discovered a pulsating, dead star beaming with the energy of about 10 million suns. Pulsars are dense stellar remnants leftover from supernovas, and this one is the brightest ever recorded.
Astronomers using NASA's NuSTAR telescope have discovered a pulsar in the Cigar Galaxy, emitting energy about 100 times brighter than predicted. This finding challenges long-held assumptions about ultraluminous X-ray sources and may lead to re-evaluation of other objects previously thought to be black holes.
Astronomers have observed a unique transformation of a binary system containing a rapidly spinning neutron star. The system, known as AY Sextantis, underwent a dramatic change in behavior, with the pulsar's radio beacon vanishing and its gamma-ray emission increasing fivefold.
Scientists detect a split-second burst of radio waves from the Arecibo telescope, marking the first time such an event has been recorded using an instrument other than the Parkes radio telescope. The finding suggests that these mysterious pulses are truly of cosmic origin and may be caused by exotic astrophysical objects.
Researchers used the interstellar medium as a lens to magnify and observe radio wave emission from a small rotating neutron star, achieving highest resolution ever measured. This technique allowed them to study pulsars, which emit pulsed radio waves, and potentially unlock new insights into their physics.
Researchers found a massive asteroid around PSR J0738-4042, which is being pounded by asteroids and could form planets. The asteroid's mass is about a billion tonnes, and its formation is linked to the star's intense radiation.
Astronomers have discovered a 3-star system that challenges the strong equivalence principle in Albert Einstein's theory of General Relativity. The system, consisting of two white dwarf stars and a superdense pulsar, allows for precise timing observations to test the theory's validity.
Astronomers have found a rare stellar system featuring a neutron star, two white dwarf stars, in an incredibly close orbit. By measuring the gravitational perturbations in this system, scientists can gain insights into the nature of gravity and potentially detect problems with General Relativity.
Researchers have discovered a steady change in the pulses of the Crab pulsar, indicating its strong magnetic field is moving towards the equator. The findings, made possible by a 42-ft telescope used to track ballistic missiles, provide insights into the star's interior and evolution.
Astronomers discovered a neutron star that can transform from a radio pulsar into an X-ray pulsar and back again, with its behavior fueled by a nearby companion star. The unusual behavior provides new insights into the birth of millisecond pulsars.
A team of astronomers has identified a pulsar that switches between emitting X-rays and radio waves, offering the first direct evidence of one kind of pulsar transforming into another. This phenomenon was observed in a small cluster of stars 18,000 light-years away in the constellation Sagittarius.
Astronomers have discovered a millisecond pulsar with a unique dual identity, shifting between X-ray and radio emission in a phenomenon never before observed. The discovery represents a long-sought intermediate phase in the life of these powerful objects, offering a rare opportunity to study a pulsar's magnetic field in action.
A team of scientists has developed a software that uses pulsar navigation to determine the position and velocity of spacecraft. By observing the timing of pulses from specific pulsars, the software can provide accurate location data for deep-space missions.
Astronomers have measured the magnetic field emanating from a swirling disk of material surrounding the black hole at the center of our Milky Way Galaxy. The measurement, made by observing a recently-discovered pulsar, is providing a powerful new tool for studying the mysterious region at the core of our home galaxy.
Researchers have discovered a magnetar at the centre of our Milky Way, providing insights into the strong magnetic field surrounding the supermassive black hole. The discovery enables scientists to study the accretion flow and X-ray emissions of the gravity trap.
A NASA team has built a first-of-a-kind testbed to simulate pulsar-on-table technology for X-ray navigation. The Goddard X-ray Navigation Laboratory Testbed will validate advanced technologies for the NICER/SEXTANT mission, which aims to study neutron star interior compositions and demonstrate pulsar-based navigation.
NMR spectrometer Pulsar offers affordable and accessible analysis of molecular structure and composition, enabling quality control labs and university teaching centers to utilize the technique.
A team of scientists discovered a unique double object consisting of a massive neutron star and its white dwarf companion, pushing the limits of physical theories. The discovery offers an opportunity to test Einstein's general relativity with unprecedented precision.
A newly-discovered pulsar and its white-dwarf companion have provided physicists with a unique opportunity to study the nature of gravity, with General Relativity predictions holding up well under extreme conditions. The system's unique characteristics make it an unprecedented test for alternative theories of gravity.
Researchers have confirmed Einstein's theory of general relativity by observing a unique binary star system with a massive neutron star and a white dwarf. The study found that the system's gravitational waves match exactly what Einstein's theory predicts, providing strong evidence for the validity of the theory.
The Fermi Gamma-ray Space Telescope's complex motion is visualized as a Spirograph-like pattern from the pulsar Vela. The pattern captures the spacecraft's 95-minute orbit around Earth and its precession, a slow circuit every 54 days. This data also shows the LAT's nodding pattern to capture the entire sky.
Researchers observed a pulsar that dramatically changes its radio and X-ray emissions, defying existing theories on star emission. The study reveals the pulsar switches between two extreme states, one dominated by X-ray pulses and the other by organized radio pulses.
Researchers found a pulsar, PSR B0943+10, that changes its behavior between two extreme states: one dominated by X-ray pulses and the other by highly organized radio pulses. The team used simultaneous observations with the XMM-Newton satellite and two radio telescopes to reveal this unique behavior.
Pulsars suddenly increase speed in brief events called 'glitches,' but researchers question this phenomenon's explanation. A mathematical model shows that the available superfluid in a pulsar's crust is too small to cause such friction, contradicting current thinking.