Current Pulsar News and Events

Current Pulsar News and Events, Pulsar News Articles.
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Measurements of pulsar acceleration reveal Milky Way's dark side
It is well known that the expansion of the universe is accelerating due to a mysterious dark energy. Within galaxies, stars also experience an acceleration, though this is due to some combination of dark matter and the stellar density. In a new study to be published in Astrophysical Journal Letters researchers have now obtained the first direct measurement of the average acceleration taking place within our home galaxy, the Milky Way. (2021-01-11)

Arecibo observatory helps find possible 'first hints' of low-frequency gravitational waves
Data from Arecibo Observatory in Puerto Rico has been used to help detect the first possible hints of low-frequency disturbances in the curvature of space-time. The results were presented today at the 237th meeting of the American Astronomical Society, which was held virtually, and are published in The Astrophysical Journal Letters (2021-01-11)

Chandra studies extraordinary magnetar
In 2020, astronomers added a new member to an exclusive family of exotic objects with the discovery of a magnetar. New observations from NASA's Chandra X-ray Observatory help support the idea that it is also a pulsar, meaning it emits regular pulses of light. (2021-01-08)

Scientists complete yearlong pulsar timing study after reviving dormant radio telescopes
While the scientific community grapples with the loss of the Arecibo radio telescope, astronomers who revived a long-dormant radio telescope array in Argentina hope it can help compensate for the work Arecibo did in pulsar timing. Last year, scientists at Rochester Institute of Technology and the Instituto Argentino de Radioastronom­ia (IAR) began a pulsar timing study using two upgraded radio telescopes in Argentina. They are releasing observations from the first year in a new study. (2020-12-21)

Astronomers discover clues that unveil the mystery of fast radio bursts
UNLV astrophysicist Bing Zhang and international collaborators recently observed fast radio bursts, powerful radio waves coming from deep space that have been among the most mysterious astronomical phenomena ever observed. Zhang and colleagues contribute to our understanding of where they come from and how they're produced in a series of papers published in Nature. (2020-11-05)

Researchers find "missing link" between magnetars and rotation-powered pulsars
Researchers from the RIKEN Cluster for Pioneering Research have made observations of a new magnetar, called Swift J1818.0-1607, which challenges current knowledge about two types of extreme stars, known as magnetars and pulsars. (2020-10-08)

Microscopic deformation of a neutron star inferred from a distance of 4500 light-years
Gravitational waves, which are ripples in spacetime, have recently provided a new window to the universe. But continuous gravitational waves, for example from a slightly deformed and spinning neutron star, a star which is incredibly dense, have so far not been detected. A recent research work by Prof. Sudip Bhattacharyya has inferred continuous gravitational waves from a neutron star and has estimated the stellar microscopic deformation from a distance of about 4500 light-years. (2020-08-20)

ALMA finds possible sign of neutron star in supernova 1987A
Based on ALMA observations and a theoretical follow-up study, scientists suggest that a neutron star might be hiding deep inside the remains of Supernova 1987A. (2020-07-30)

How colliding neutron stars could shed light on universal mysteries
Researchers have discovered an unusual pulsar - one of deep space's magnetized spinning neutron-star 'lighthouses' that emits highly focused radio waves from its magnetic poles. It is unusual because the masses of its two neutron stars are quite different -- with one far larger than the other. The breakthrough provides clues about unsolved mysteries in astrophysics -- including the expansion rate of the Universe (the Hubble constant). The discovery was made using the Arecibo radio telescope, Puerto Rico. (2020-07-08)

New study shows colliding neutron stars may unlock mysteries of universe expansion
The National Science Foundation's Arecibo Observatory in Puerto Rico has proven itself instrumental in another major astronomical discovery. An international team of scientists, led by the University of East Anglia in the United Kingdom, found an asymmetrical double neutron star system using the facility's powerful radio telescope. (2020-07-08)

To find giant black holes, start with Jupiter
On a quest to find the Universe's largest black holes, Vanderbilt researcher identifies the center of the solar system within 100 meters. (2020-06-30)

Why pulsars shine bright: A half-century-old mystery solved
Pulsars act like stellar lighthouses, shooting beams of radio waves from their magnetic poles. The cause of those beams has remained a mystery for more than 50 years. Now, a team of researchers suspects that they've finally identified the mechanism responsible: Newborn particles interact with the stars' powerful electromagnetic fields, generating intense radio emissions, the team's simulations suggest. The discovery could aid projects that rely on pulsar emissions, such as studies of gravitational waves. (2020-06-15)

Ultra-bright X-ray source awakens near a galaxy not so far away
A new ultra-bright source of X-rays has awakened in between our galactic neighbours the Magellanic Clouds, after a 26-year slumber. This is the second-closest such object known to date, with a brightness greater than a million Suns. The discovery is published in the journal Monthly Notices of the Royal Astronomical Society. (2020-06-03)

Scientists detect crab nebula using innovative gamma-ray telescope
The prototype Schwarzschild-Couder Telescope (SCT)--developed by scientists at the Columbia University in collaboration with researchers from other institutions--is part of an international effort, known as the Cherenkov Telescope Array (CTA), which aims to construct the world's largest and most powerful gamma-ray observatory, with more than 100 similar telescopes in the northern and southern hemispheres. (2020-06-02)

Astronomers capture a pulsar 'powering up'
A Monash-University-led collaboration has, for the first time, observed the full, 12-day process of material spiralling into a distant neutron star, triggering an X-ray outburst thousands of times brighter than our Sun. (2020-06-02)

An eclipsing binary millisecond pulsar discovered by FAST
Using the data obtained by the Five-hundred-meter Aperture Spherical radio Telescope (FAST), a research team led by Professor PAN Zhichen and Prof. LI Di from the National Astronomical Observatories of the Chinese Academy of Sciences (NAOC) discovered an eclipsing binary millisecond pulsar in Globular Cluster (GC) Messier 92 (M92). (2020-04-24)

Pulsar-white dwarf binary system confirms general relativistic frame-dragging
A century after it was first theorized, researchers have detected the effects of Lense-Thirring precession -- an effect of relativistic frame-dragging -- in the motion of a distant binary star system, a new study reports. (2020-01-30)

Astronomers witness the dragging of space-time in stellar cosmic dance
An international team of astrophysicists led by Australian Professor Matthew Bailes, from the ARC Centre of Excellence of Gravitational Wave Discovery (OzGrav), has shown exciting new evidence for 'frame-dragging'-- how the spinning of a celestial body twists space and time -- after tracking the orbit of a stellar pair for almost two decades. The data, which is further evidence for Einstein's theory of General Relativity, is published today (Jan. 31, 2020) in the prestigious journal, Science. (2020-01-30)

NASA's Fermi Mission links nearby pulsar's gamma-ray 'halo' to antimatter puzzle
NASA's Fermi Gamma-ray Space Telescope has discovered a faint but sprawling glow of high-energy light around a nearby pulsar. If visible to the human eye, this gamma-ray 'halo' would appear about 40 times bigger in the sky than a full Moon. (2019-12-19)

RIT and IAR observe pulsars for the first time from South America
A team from RIT and the Instituto Argentino de RadioastronomĂ­a (IAR) upgraded two radio telescopes in Argentina that lay dormant for 15 years in order to study pulsars, rapidly rotating neutron stars with intense magnetic fields that emit notably in radio wavelengths. The project is outlined in a new paper published in Astronomy and Astrophysics. (2019-12-17)

NASA's NICER delivers best-ever pulsar measurements, 1st surface map
Astrophysicists are redrawing the textbook image of pulsars (the dense, whirling remains of exploded stars) thanks to NICER, an X-ray telescope aboard the International Space Station. NICER data has provided the first precise and dependable measurements of both a pulsar's size and its mass, and the first-ever map of hot spots on its surface. (2019-12-12)

Skipping one night of sleep may leave insomniacs twice as impaired, study says
Poor daytime functioning is a frequent complaint among those suffering from insomnia. Previous studies have found that their daytime cognitive performance is not significantly degraded, seemingly suggesting it is a perceived issue that does not reflect a real impairment. A new study of individuals with sleep-onset insomnia revealed that the impairment may be real but hidden during the normal day--yet exposed after pulling an all-nighter, which impacted them much more than age-matched control subjects. (2019-12-11)

APS tip sheet: Dark matter's galactic emissions and game theory of vaccination
The APS Tip Sheet highlights noteworthy research recently published in the Physical Review Journals. Unless otherwise noted, Physical Review papers are not embargoed. Please contact for media inquiries and complimentary access to the journals. (2019-12-11)

Russian astrophysicists discovered a neutron star with an unusual magnetic field structure
Russian scientists discovered a unique neutron star, the magnetic field of which is apparent only when the star is seen under a certain angle relative to the observer. The neutron star GRO J2058+42 studied by the researchers offers an insight into the internal structure of neutron star's magnetic field only at a certain phase of its rotational period. (2019-12-09)

NASA's NICER catches record-setting X-ray burst
On Aug. 20, 2019 NASA's NICER telescope saw a spike of X-rays from a massive explosion on a pulsar. It's the brightest X-ray burst NICER has seen so far and shows phenomena that have never been seen together in a single burst. (2019-11-07)

WVU astronomers help detect the most massive neutron star ever measured
West Virginia University researchers have helped discover the most massive neutron star to date, a breakthrough uncovered through the Green Bank Telescope. The neutron star, called J0740+6620, is a rapidly spinning pulsar that packs 2.17 times the mass of the sun (which is 333,000 times the mass of the Earth) into a sphere only 20-30 kilometers, or about 15 miles, across. (2019-09-16)

Most massive neutron star ever detected, almost too massive to exist
Astronomers using the GBT have discovered the most massive neutron star to date, a rapidly spinning pulsar approximately 4,600 light-years from Earth. This record-breaking object is teetering on the edge of existence, approaching the theoretical maximum mass possible for a neutron star. (2019-09-16)

Astrophysicists link brightening of pulsar wind nebula to pulsar spin-down rate transition
Astrophysicists have discovered that the pulsar wind nebula (PWN) surrounding the famous pulsar B0540-69 brightened gradually after the pulsar experienced a sudden spin-down rate transition (SRT). This discovery, made by a group of astrophysicists led by GE Mingyu and LU Fangjun at the Institute of High Energy Physics of the Chinese Academy of Sciences, provides important clues to the spin-down mechanism and the magnetic field structure of the pulsar, as well as the physical properties of the PWN. (2019-08-26)

Glitch in neutron star reveals its hidden secrets
Neutron stars are not only the most dense objects in the Universe, but they rotate very fast and regularly. Until they don't. (2019-08-12)

Dead planets can 'broadcast' for up to a billion years
Astronomers are planning to hunt for cores of exoplanets around white dwarf stars by 'tuning in' to the radio waves that they emit. (2019-08-06)

Pair of supermassive black holes discovered on a collision course
Astronomers have spotted a pair of supermassive black holes on a collision course in a galaxy 2.5 billion light-years away. Coincidentally, the pair will begin producing gravitational waves in roughly 2.5 billion years, the researchers estimate. The duo can be used to estimate how many supermassive black hole pairs are detectable in the nearby, present-day universe and when the historic first detection of the background 'hum' of their gravitational waves will be made. (2019-07-10)

NICER's night moves trace the X-ray sky
This is a map of the entire sky in X-rays recorded by NASA's Neutron star Interior Composition Explorer (NICER), a payload on the International Space Station. (2019-05-30)

The science and technology of FAST
The Five hundred-meter Aperture Spherical radio Telescope (FAST), located in a radio quiet zone, with the targets (e.g., radio pulsars and neutron stars, galactic and extragalactic 21-cm HI emission). Now, FAST has already been completely tested and achieved the acceptance indices. In this special topic, we present a comprehensive review of FAST, from the dish to the receiver and the data systems; in addition, several scientific achievements obtained by FAST have also been discussed. (2019-05-17)

NASA's Fermi Satellite clocks 'cannonball' pulsar speeding through space
Astronomers have found a runaway pulsar hurtling through space at nearly 2.5 million miles an hour -- so fast it could travel the distance between Earth and the Moon in just 6 minutes. (2019-03-19)

Astronomers find 'cannonball pulsar' speeding through space
VLA image shows the trail of a speeding pulsar pointing directly back at the center of the debris shell from the supernova that created it. (2019-03-19)

Cosmic fireworks
It's not every day you get to observe a gamma-ray binary system. In fact, it's a once-in-a-lifetime experience comparable to seeing Halley's Comet or a solar eclipse. Here's what a UD team saw. (2018-11-15)

Researchers detect high-energy rays from powerful star system
An international collaboration of scientists at the High-Altitude Water Cherenkov Gamma Ray Observatory, including Segev BenZvi and Chang Rho at the University of Rochester, has, for the first time, detected extremely high-energy gamma rays from a powerful star system--a microquasar known as SS 433. The discovery marks the most energetic radiation ever detected from a microquasar in our galaxy and will help scientists better understand some of the astrophysical processes happening in deep space. (2018-10-04)

Hubble uncovers never-before-seen features around a neutron star
An unusual infrared light emission from a nearby neutron star detected by NASA's Hubble Space Telescope could indicate new features never before seen. (2018-09-17)

The surprising environment of an enigmatic neutron star
An unusual infrared emission detected by the Hubble Space Telescope from a nearby neutron star could indicate that the pulsar has features never before seen. The observation could help astronomers better understand the evolution of neutron stars. (2018-09-17)

Astronomers witness birth of new star from stellar explosion
Astronomers have observed a new phenomena in the aftermath of a stellar explosion. (2018-09-12)

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