Tag

Neutron Star

All articles tagged with #neutron star

astronomy7 days ago•55 min saved

Milky Way’s Core May Hide an Ultra-Magnetized Pulsar

Scientists suspect a rapidly spinning, highly magnetic neutron star (a pulsar) sits near the Milky Way’s center. A Breakthrough Listen radio survey with the Green Bank Telescope (2021–2023) found a single pulsar candidate, BLPSR, around 122 rotations per second. If confirmed, such a pulsar orbiting Sagittarius A* could serve as a precise cosmic clock to test general relativity in the extreme gravity near the galaxy’s supermassive black hole, though the Galactic Center is notoriously hard to survey. Future facilities like ngVLA and SKA could help determine how many pulsars truly populate the core.

via Space|

#astronomy #galactic-center #general-relativity

science4 months ago•5 min saved

Magnetar's Rapid Spin Challenges Black Hole Theories

Scientists have detected the 'heartbeat' of a newborn magnetar within a gamma-ray burst, revealing that some GRBs are powered by magnetars rather than black holes, which challenges previous understanding and opens new avenues for cosmic research.

via Rude Baguette|

#astrophysics #cosmic-discovery #gamma-ray-burst

science5 months ago•5 min saved

Scientists Uncover Surprising Secrets of Cosmic Winds and Black Holes

Astronomers using the XRISM spacecraft observed powerful, unexpectedly dense winds from a neutron star's accretion disk, revealing differences from black hole winds and offering new insights into the physics of matter inflow and outflow around extreme objects, which could reshape our understanding of cosmic energy transfer.

via Space|

#accretion-disks #black-holes #cosmic-winds

science-and-exploration5 months ago•5 min saved

XRISM reveals unexpected speeds in cosmic wind from X-ray binary

The XRISM mission has discovered that the winds from a neutron star system are unexpectedly dense and slower than those from supermassive black holes, challenging current understanding of how such winds form and influence their environments. The findings suggest that differences in accretion disc temperature and size may explain the variations, providing new insights into cosmic feedback mechanisms and galaxy evolution.

via European Space Agency|

#black-holes #cosmic-winds #neutron-star

science6 months ago•4 min saved

Scientists Identify Origin of Brightest Fast Radio Burst Ever Detected

A record-breaking fast radio burst named RBFLOAT was detected by the CHIME telescope, originating from a galaxy 130 million light-years away, and precisely localized using an array of outriggers, providing new insights into the origins of such cosmic phenomena, likely linked to magnetars.

via sciencealert.com|

#chime #frb #galaxy

science6 months ago•3 min saved

NASA Telescope Reveals Even Stranger Cosmic Object

NASA's Chandra X-ray Observatory and radio data reveal new insights into the pulsar wind nebula MSH 15-52, a young, powerful nebula formed by a supernova explosion, with features that challenge current understanding of high-energy particle interactions and magnetic fields in space.

via Mashable|

#cosmic-rays #nasa #neutron-star

science7 months ago•3 min saved

Fast-Spinning Dead Star Exhibits Unusual Regular Glitches

Astronomers have observed over a dozen glitches and regular cycles in the rotation of the pulsar PSR J0922+0638 over 22 years, revealing complex and not fully understood physics involving its magnetic fields or internal superfluid dynamics.

via Space|

#astronomy #glitches #neutron-star

science7 months ago•4 min saved

Astronomers Discover 'Cosmic Unicorn' Spinning Object Defying Physics

Astronomers have discovered a unique, blinking cosmic object named CHIME J1634+44, exhibiting unusual periodic radio signals and polarization, likely involving a neutron star or white dwarf, challenging existing models and hinting at more such objects in the universe.

via ScienceAlert|

#astronomy #lpts #neutron-star

science7 months ago•6 min saved

Astronomers Uncover Spinning Cosmic 'Unicorn' Defying Physics and Speeding Up

Astronomers have discovered a unique and mysterious dead star called CHIME J1634+44, dubbed the 'cosmic unicorn,' which challenges current understanding due to its unusual properties, including increasing spin rate, circular polarization of radio bursts, and potential binary system, prompting new questions in astrophysics.

via Space|

#cosmic-unicorn #lpt-j163444 #neutron-star

science7 months ago•4 min saved

NASA X-ray Spacecraft Unveils Secrets of Spinning Neutron Star

NASA's X-ray spacecraft revealed that radiation from the rapidly spinning neutron star PSR J1023+0038 is mainly influenced by its powerful particle winds rather than material from its companion star, with observations showing the highest polarization levels ever detected from such a system, providing new insights into pulsar behavior.

via Space|

#astronomy #binary-system #neutron-star

science7 months ago•3 min saved

NASA's IXPE Unveils Secrets of Rare Pulsar

NASA's IXPE telescope helped scientists discover that X-rays from the rare pulsar system PSR J1023+0038 originate from the pulsar wind, challenging previous models and providing new insights into neutron star environments and particle acceleration.

via NASA (.gov)|

#ixpe #nasa #neutron-star

science8 months ago•1 min saved

Mysterious Deep-Space Signals from 15,000 Light-Years Away Spark Scientific Curiosity

Astronomers have discovered a distant star, ASKAP J1832−0911, 15,000 light years away, emitting mysterious radio and X-ray signals with unusual behavior, including a 44-minute pulse and dramatic fading over six months, challenging existing classifications of stellar objects and potentially transforming our understanding of the universe.

via BBC Sky at Night Magazine|

#astronomy #cosmos #neutron-star

science8 months ago•4 min saved

Supercomputer Simulations Reveal Black Hole's Devouring of Neutron Stars

Scientists used advanced computer simulations to model the final moments of a neutron star being consumed by a black hole, revealing that the star's surface cracks like an egg and emits detectable radio signals, including fast radio bursts, as it is torn apart, potentially allowing astronomers to observe these violent cosmic events.

via Space|

#black-hole #cosmic-events #neutron-star

science9 months ago•3 min saved

Supercomputer Simulations Unveil the Explosive Death of Neutron Stars by Black Holes

Caltech's advanced supercomputer simulations reveal detailed processes during black hole and neutron star mergers, including surface quakes, shockwaves, and the potential formation of black hole pulsars, enhancing understanding of these extreme cosmic phenomena.

via Gizmodo|

#black-hole #cosmic-events #gravitational-waves

science9 months ago•4 min saved

Supercomputer Simulations Unveil Black Hole and Neutron Star Mergers

Scientists used supercomputers to simulate the final moments of a neutron star being torn apart by a black hole, revealing crust fractures, magnetic shocks, and potential electromagnetic signals like radio bursts and gamma rays, which could help detect such cosmic events with telescopes.

via Yahoo|

#black-hole #cosmic-collision #magnetic-waves