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Recent items include:

  • A pulsar's apparent slowdown reveals a rare stellar trio
  • Pulsar Timing Arrays Could Look for Evidence of Dark Matter Stars
  • Rare pulsar unleashes 114 giant pulses in a single hour

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phys.org /4 days ago

A pulsar's apparent slowdown reveals a rare stellar trio

Pulsars are rapidly rotating neutron stars, the extremely dense cores left behind when massive stars explode. Astrophysicists have recently observed a pulsar rotating over 300 time...

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universetoday.com /1 month ago

Pulsar Timing Arrays Could Look for Evidence of Dark Matter Stars

Pulsar Timing Arrays have been used to observe the background of gravitational waves in our galaxy. We aren't certain of their origin, but a new study shows a strong source could b...

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phys.org /1 month ago

Rare pulsar unleashes 114 giant pulses in a single hour

Astronomers have detected extreme, never-before-seen behavior from a rare kind of pulsar and stumbled on a surprising link to one of astronomy's biggest current mysteries. Using 17...

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scitechdaily.com /1 month ago

Dark Stars May Have Left a Gravitational-Wave Signal We Can Detect Today

A new study suggests that pulsar timing arrays could help reveal how the Universe’s first supermassive black holes formed. A faint background of extremely low-frequency gravitation...

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phys.org /3 weeks ago

Astronomers discover the lowest-mass double neutron star system to date

Neutron stars, the extremely dense remains of massive stars that exploded at the end of their lives, are widely studied astrophysical objects. Some of these stars, known as pulsars...

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phys.org /1 month ago

'Quiet' pulsar suddenly reveals three glitches in 15 years of observations

Using more than 15 years of observations from the Parkes radio telescope, astronomers detected three rotational glitches in the pulsar PSR J1637−4642—a young neutron star that...

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universetoday.com /2 weeks ago

XRISM Makes First-Ever Detection of a Pulsar Feeding from a Companion's Stellar "Wind"

Using data from the Japan-led XRISM observatory, astronomers have directly observed a giant star’s stellar wind captured by its compact companion (triggering X-ray flares) for the...

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nanowerk.com /1 month ago

42-light-year X-ray tail reveals how high-energy particles escape a pulsar

Einstein Probe and LHAASO observations reveal a 42-light-year X-ray tail, showing high-energy particles can travel directionally far beyond their pulsar source.

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scitechdaily.com /1 month ago

Two Dead Stars Are Racing Around Each Other Every 6.2 Minutes

A pair of white dwarfs race around each other every 374 seconds, creating a rhythmic X-ray beacon that could reveal powerful gravitational waves. Every 6.2 minutes, two dead stars...

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3dnews.ru /2 weeks ago

Чёрные дыры, пульсары и сверхновая: «Роскосмос» показал космос глазами рентгеновского телескопа ART-XC

«Роскосмос» продемонстрировал визуализацию объектов, за которыми наблюдал работающий в жёстком рентгеновском диапазоне российский телескоп ART-XC. В космическом агентстве рассказал...

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phys.org /1 month ago

A 42-light-year X-ray tail links a pulsar to previously 'orphan' gamma rays

Understanding the origin, acceleration and propagation of high-energy cosmic rays has been a century-old mystery in astrophysics. Recently, joint observations from China's Einstein...

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phys.org /3 weeks ago

Astronomers link mysterious cosmic flashes to collisions of dead stars

For decades, astronomers have identified collisions between two neutron stars through bursts of gamma rays that can disappear in less than two seconds. But some of these violent en...

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discovermagazine.com /3 weeks ago

Mysterious Cosmic Flashes Could Be Linked to a Neutron Star Merger

Learn more about magnetars and how they may also form from two colliding neutron stars. 

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nanowerk.com /3 weeks ago

Astronomers link mysterious cosmic flashes to collisions of dead stars

New observations helped connect an X-ray flash lasting nearly ten minutes to a merger of neutron stars.

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newscientist.com /1 month ago

Gamma ray burst may have been two supernovae in one

A group of astronomers proposes that a series of events in a distant galaxy formed both a black hole and a pulsar, but other experts say the conclusion is premature

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phys.org /3 days ago

A magnetar can be born when two neutron stars touch

All neutron stars have intense magnetic fields. The typical magnetic field of a neutron star is about 100,000 times stronger than the strongest magnetic fields we can create on Ear...

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scitechdaily.com /3 weeks ago

Einstein Probe Discovers a Secret Phase of Neutron Star Collisions

Einstein Probe uncovered a hidden soft X-ray phase that may reveal how neutron star merger remnants remain active after short gamma-ray bursts. A burst of gamma rays can flare for...

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universetoday.com /1 month ago

Astronomers Uncover "Hypersoft" X-ray Sources

X-rays showcase some of the most unique astronomical objects in the universe. Neutron stars and black holes siphoning gas from companion stars stick out like sore thumbs at this le...

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phys.org /1 month ago

Superdense neutron star caught feeding on a blue hypergiant's stellar wind

Using data from the Japan–led XRISM (X-ray Imaging and Spectroscopy Mission) observatory, astronomers have directly observed a giant star's outflow, called a stellar wind, being ca...

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universetoday.com /2 weeks ago

Neutrons, Rotating Black Holes, and a Galactic PeVatron at the Center of the Milky Way

Supermassive black holes generate tremendous amounts of energy through their accretion disks and jets. But they can also generate energy through the magnetic Penrose process. A new...

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universetoday.com /4 days ago

A Magnetar Can Be Born When Two Neutron Stars Touch

Magnetars are neutron stars with magnetic fields a thousand times stronger than normal. One way that magnetars might form is through the merger of two small neutron stars.

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phys.org /2 weeks ago

Neutrons, rotating black holes, and a galactic PeVatron at the center of the Milky Way

Galactic black holes are cosmic mitochondria, powerhouses of the universe. Most of the energy these supermassive black holes produce comes from the material surrounding them: super...

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universetoday.com /1 month ago

What Can Happen When a Rapidly Spinning Star Meets a Black Hole?

Astrophysicists at Syracuse University in New York think they've found a hitherto-hidden explanation for strange activity during so-called repeating partial Tidal Disruption Events...

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phys.org /1 month ago

Bizarre galactic radio source remains active for two decades with no detectable X-rays

Astronomers have identified a peculiar radio transient in the Milky Way that has remained active for more than two decades, defying the behavior expected of known classes of galact...

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feeds.feedburner.com

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3dnews.ru

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feeds.feedburner.com

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phys.org

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nanowerk.com

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newscientist.com

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