#neutronstar — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #neutronstar, aggregated by home.social.
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📣 New title image 🖼️
The diagram shows results from a numerical relativistic computer simulation of merging neutron stars.
The new simulation takes into account muons and their reactions to get a physically more complete picture of what happens in these extreme cosmic events.
Researchers at @unipotsdam, at Universidade Federal do ABC in Brazil, and at @mpi_grav have recently published their results: https://arxiv.org/abs/2604.14225.
The diagram from that manuscript shows the muon fraction and its deviation from equilibrium at different times after merger.
The most important finding: Unlike reported in the literature so far, taking into account muons and their reactions only plays a minor role – at least in the context of calculating the synthesis of elements in neutron star mergers and their optical counterparts observable with telescopes.
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@NanoRaptor
#SciFi : Ken Macleod's Learning the World with the advancing wave of green stars points up the idea that the Dyson sphere is less a solid structure than an accumulation of habitats, machines etc.
(Sphere might not be the shape either)
Larry #Niven's #NeutronStar short story points up one problem of near-point masses, tidal forces. One's personal #RocheLimit is best avoided.
Niven again, and the #SmokeRing and #IntegralTrees is interesting wrt a neutron star and habitability. -
This is why I love physics-reality keeps finding ways to be stranger than anything we'd think to invent.
A black hole and neutron star just collided in a strange oval orbit
https://tinyurl.com/4xu47pkh
#science #physics #astrophysics #blackhole #neutronstar -
https://www.europesays.com/ie/364684/ Astronomer Deciphers Crab Pulsar’s Zebra Stripes #CrabNebula #CrabPulsar #Éire #GravitationalLens #gravity #IE #Ireland #Magnetosphere #nebula #NeutronStar #plasma #pulsar #RadioSignal #Science #Spectrum #star #Supernova #SupernovaRemnant
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A pulsar rotating 122 times per second could be present at the heart of the Milky Way
ⓘ NidhiYashwan…
#NewsBeep #News #Space #benchmarks #BreakthroughListen #galacticcenter #graphicscard #GreenBankTelescope #laptop #magnetar #MilkyWay #millisecondpulsar #netbook #neutronstar #notebook #processor #pulsar #radioastronomy #reports #review #Reviews #SagittariusA #Science #solarsystem #SquareKilometerArray #telescope #test #tests #UK #UnitedKingdom #VeryLargeArray
https://www.newsbeep.com/uk/441084/ -
https://www.europesays.com/ie/351827/ A pulsar rotating 122 times per second could be present at the heart of the Milky Way #benchmarks #BreakthroughListen #Éire #GalacticCenter #GraphicsCard #GreenBankTelescope #IE #Ireland #laptop #Magnetar #MilkyWay #MillisecondPulsar #netbook #NeutronStar #notebook #processor #pulsar #RadioAstronomy #reports #Review #Reviews #SagittariusA #Science #SolarSystem #Space #SquareKilometerArray #Telescope #test #tests #VeryLargeArray
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https://www.europesays.com/uk/783290/ A pulsar rotating 122 times per second could be present at the heart of the Milky Way #Benchmarks #BreakthroughListen #GalacticCenter #GraphicsCard #GreenBankTelescope #laptop #magnetar #MilkyWay #MillisecondPulsar #netbook #NeutronStar #notebook #Physics #processor #pulsar #RadioAstronomy #reports #Review #Reviews #SagittariusA #Science #SolarSystem #SquareKilometerArray #Telescope #test #tests #UK #UnitedKingdom #VeryLargeArray
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PSR J0952-0607 - Tightening a Record-high #NeutronStar Mass: https://iopscience.iop.org/article/10.3847/1538-4357/ae28c5 -> interview with the first author: https://www.youtube.com/watch?v=eFNqf19QewY
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NASA Supercomputer Probes Tangled Magnetospheres of Merging Neutron Stars ✨
#Ast #Astrophysics #GammaRayBurst #Hubble #HubbleSpaceTelescope #JamesWebbSpaceTelescope #NeutronStar #Space
⏩ 2 new pictures and 2 new videos from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=20&user=OptimusPrimeBot&ilshowall=1&offset=20260212125527
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NASA Supercomputer Probes Tangled Magnetospheres of Merging Neutron Stars ✨
#Ast #Astrophysics #GammaRayBurst #NeutronStar #Space #Star #Supernova #Universe
⏩ 2 new pictures and 2 new videos from NASA (SVS) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=20&user=OptimusPrimeBot&ilshowall=1&offset=20260129181802
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https://www.europesays.com/uk/708634/ Physicists Begin Building First-Ever Graviton Detector #BlackHole #GravitationalWaves #graviton #gravity #NeutronStar #Physics #Science #SupermassiveBlackHole #UK #UnitedKingdom
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Physicists Begin Building First-Ever Graviton Detector
Stevens Institute of Technology physicist Igor Pikovski and colleagues are developing the first experiment designed to capture individual…
#NewsBeep #News #US #USA #UnitedStates #UnitedStatesOfAmerica #Physics #blackhole #gravitationalwaves #graviton #gravity #neutronstar #Science #supermassiveblackhole
https://www.newsbeep.com/us/418644/ -
Physicists Begin Building First-Ever Graviton Detector
Stevens Institute of Technology physicist Igor Pikovski and colleagues are developing the first experiment designed to capture individual…
#NewsBeep #News #US #USA #UnitedStates #UnitedStatesOfAmerica #Physics #blackhole #gravitationalwaves #graviton #gravity #neutronstar #Science #supermassiveblackhole
https://www.newsbeep.com/us/418644/ -
Physicists Begin Building First-Ever Graviton Detector
Stevens Institute of Technology physicist Igor Pikovski and colleagues are developing the first experiment designed to capture individual…
#NewsBeep #News #Physics #BlackHole #gravitationalwaves #graviton #gravity #neutronstar #Science #supermassiveblackhole #UK #UnitedKingdom
https://www.newsbeep.com/uk/380086/ -
Physicists Begin Building First-Ever Graviton Detector
Stevens Institute of Technology physicist Igor Pikovski and colleagues are developing the first experiment designed to capture individual…
#NewsBeep #News #Physics #Blackhole #CA #Canada #Gravitationalwaves #graviton #gravity #neutronstar #Science #supermassiveblackhole
https://www.newsbeep.com/ca/421179/ -
https://www.europesays.com/ie/292291/ Physicists Begin Building First-Ever Graviton Detector #BlackHole #Éire #GravitationalWaves #graviton #gravity #IE #Ireland #NeutronStar #Science #SupermassiveBlackHole
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#KnowledgeBit: A #Pulsar (from pulsating radio source) is a highly magnetized rotating #NeutronStar that emits beams of electromagnetic radiation out of its magnetic poles. Pulsars aren't really stars or at least they aren't "living" stars.
Pulsars form when a star more massive than the sun runs out of fuel in its core and collapses in on itself.
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A watery, greenish and rocky alien planet with Saturn-like rings. It has moons, a neutron star, and a black hole in the background.
#alienplanet #blackhole #NeutronStar #moon #AIcontent #aigenerated #AIart #Art #saturn #gemini #video #shortvideo #AI #veo #planet
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A watery, greenish and rocky alien planet with Saturn-like rings. It has moons, a neutron star, and a black hole in the background.
#alienplanet #blackhole #NeutronStar #moon #AIcontent #aigenerated #AIart #Art #saturn #gemini #video #shortvideo #AI #veo #planet
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A watery, greenish and rocky alien planet with Saturn-like rings. It has moons, a neutron star, and a black hole in the background.
#alienplanet #blackhole #NeutronStar #moon #AIcontent #aigenerated #AIart #Art #saturn #gemini #video #shortvideo #AI #veo #planet
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A watery, greenish and rocky alien planet with Saturn-like rings. It has moons, a neutron star, and a black hole in the background.
#alienplanet #blackhole #NeutronStar #moon #AIcontent #aigenerated #AIart #Art #saturn #gemini #video #shortvideo #AI #veo #planet
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For the first time, astronomers observed the first moments of a supernova shock wave
#NewsBeep #News #Physics #Astronomy #Astrophysics #AU #Australia #benchmarks #circumstellar #Earth #FORS2 #galaxy #graphicscard #laptop #LifanWang #netbook #neutronstar #NGC3621 #notebook #processor #redsupergiant #reports #review #reviews #Science #shockwave #Space #spectropolarimetry #star #stars #stellarexplosion #Sun #supernova #supernova2024ggi #test #tests #VLT #YiYang
https://www.newsbeep.com/au/282843/ -
https://www.europesays.com/ie/179365/ For the first time, astronomers observed the first moments of a supernova shock wave #Astronomy #astrophysics #benchmarks #circumstellar #Earth #Éire #FORS2 #Galaxy #GraphicsCard #IE #Ireland #laptop #LifanWang #netbook #NeutronStar #NGC3621 #notebook #Physics #processor #RedSupergiant #reports #Review #Reviews #Science #shockwave #Space #spectropolarimetry #star #stars #StellarExplosion #Sun #Supernova #Supernova2024ggi #test #tests #VLT #YiYang
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The explosive origin of the Crab Nebula.
https://www.youtube.com/watch?v=08eKnR7CfYI
12/x
#Science #Space #Supernova #Nebula #Explosion #NeutronStar #Radiation #Magnetism #Stars #Star
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Le 17 août 2017 occupe une place spéciale dans la mémoire des astrophysiciens. En cette journée, les caractéristiques d'un événement d'ondes gravitationnelles (GW170817) suggèrent la première détection d'une fusion d'étoiles à neutrons. Un branle-bas de combat digne des meilleurs films d'action allait ensuite animer 70 équipes d'astrophysiciens pendant deux mois!
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Evidence for a brief appearance of gamma-ray periodicity after a compact star merger: https://arxiv.org/abs/2509.15824 -> HKU Researcher and Collaborators Detect First “Heartbeat” of a Newborn #NeutronStar in Distant Cosmic Explosion: https://www.hku.hk/press/press-releases/detail/28601.html
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https://www.europesays.com/uk/446213/ First-Ever Simulations Reveal Ghost Particles Shapeshifting in Violent Neutron Star Mergers #Astronomy #Astrophysics #neutrinos #NeutronStar #PennStateUniversity #Physics #Science #UK #UnitedKingdom
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✨ Neutron stars are tiny in size yet colossal in mass.
💥 Born from supernovae, they pack more than the Sun’s mass into a sphere only miles across.
🥄 A single teaspoon of their matter would weigh billions of tonnes, more than an entire mountain range.
🔭 From pulsars to the Crab Nebula, explore the densest matter in the universe.
📝 Explore more: https://TPC8.short.gy/wOp6zU4f
Journey into the cosmos.
#Astronomy #Astrophysics #NeutronStar #Pulsar #CrabNebula #ScienceCommunication #Space #TPC8
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#TachyonBeam #astronomy #NeutronStar #pulsar #Calvera
An article published in the journal "Astronomy & Astrophysics" describes a candidate supernova remnant that was associated with the pulsar nicknamed Calvera. A team of researchers led by Emanuele Greco conducted observations and analyses of a decidedly unusual pair, as finding it approximately 6,500 light-years above the Milky Way's galactic plane was surprising.
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An Impossible Thought Experiment:
"Design a spaceship that carries Humans to a Neutron Star. Land on its surface safely. Drill through it to reach its core and come back safely to Earth. This is a reply to those people who literally say "Nothing is Impossible". Even a Type-VII Alien Civilization can never do it".
#Mastodon #science #knowledge #physics #cosmos #space #astronomy #scicomm #writing #NeutronStar #star #thoughtExperiment #imagination #opinion #quote #insights #fediverse #astronomy
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‘We have a real mystery on our hands’
When you buy through links on our articles, Future and its syndication partners may earn a commission. An…
#NewsBeep #News #Physics #CA #Canada #deadstar #GreenBankObservatory #LPT #neutronstar #radiotelescopes #Science #star #stellarremnant #whitedwarf
https://www.newsbeep.com/ca/10698/ -
‘We have a real mystery on our hands’
When you buy through links on our articles, Future and its syndication partners may earn a commission. An…
#NewsBeep #News #Physics #deadstar #GreenBankObservatory #LPT #neutronstar #radiotelescopes #Science #star #stellarremnant #UK #UnitedKingdom #whitedwarf
https://www.newsbeep.com/uk/10687/ -
Black Hole Consumes Magnetized Neutron Star
"The spiraling shape will make you go insane
Everyone wants to see that groovy thing..." (#TMBG)https://youtube.com/watch?v=684Ie6uONus&si=ky25JLGXnS-0cU5S
#science #BlackHole #NeutronStar #astronomy #research #collision
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🎉 Happy belated birthday, GW230529!
Two years and a few days ago, the @LIGO Livingston gravitational-wave detector observed a remarkable gravitational-wave signal.
ℹ️ https://www.aei.mpg.de/1138125/mysterious-object-in-the-gap
Detected soon after the beginning of the fourth joint observing run of the LIGO-Virgo-KAGRA collaborations, the signal came from the merger of a compact object with 1.3 to 2.1 times the mass of our Sun with another compact object with 2.6 to 4.7 times the solar mass.
Astronomers believe that the lighter object is a neutron star and the heavier is a lightweight black hole.
How that lightweight black hole formed is unknown. Its masse falls into the “lower mass gap” between the heaviest neutron stars and the lightest black holes.
📄 https://iopscience.iop.org/article/10.3847/2041-8213/ad5beb
Image: I. Markin (@unipotsdam), T. Dietrich (@unipotsdam and @mpi_grav) H. Pfeiffer, A. Buonanno (@mpi_grav)
#GW230529 #GravitationalWaves #MassGap #BlackHole #NeutronStar #Astronomy
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💡 Breakthrough in simulating how neutron stars collide 💥
Longest self-consistent numerical-relativity simulation to date reveals details of black hole and jet formation and advances multi-messenger astronomy.
ℹ️ https://www.aei.mpg.de/1249127/breakthrough-in-simulating-how-neutron-stars-collide
📄 https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.134.211407
Picture: K. Hayashi / @mpi_grav
#NeutronStar #Astrophysics #BlackHole #MultiMessengerAstronomy #Kilonova #Jet #Astronomy #GravitationalWaves
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Today’s bite-sized space fact:
Neutron stars — the ultra-dense remnants of massive stars — can spin up to 700 times per second. That’s faster than a kitchen blender! 🤯
Mind = Blown.#Astronomy #NeutronStar #SpaceFact #Science #Astrophysics #SpaceNews #Stargazing
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🚨 New header picture 🖼️
It shows the two supernova remnants Cassiopeia A (left, in X-rays) and Vela Jr. (right, at radio wavelengths). Both harbor a “central compact object”, a neutron star left behind together with the debris cloud after the supernova.
Researchers from the permanent independent @maxplanckgesellschaft research group “Continuous Gravitational Waves” at @mpi_grav in Hanover, Germany, have been searching for gravitational waves from these central compact objects using the volunteer distributed computing project @einsteinathome.
📄 https://arxiv.org/abs/2503.09731
The fact that they did not find any gravitational waves indicates that the neutron stars can only be minimally deformed.
ℹ️ https://www.aei.mpg.de/1188233/digging-deeper-with-einstein-home?c=26149
Images: http://snrcat.physics.umanitoba.ca/SNRrecord.php?id=G111.7m02.1 and http://snrcat.physics.umanitoba.ca/SNRrecord.php?id=G266.2m01.2
#HeaderPicture #supernova #CasA #VelaJr #astrodon #astronomy #NeutronStar
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On this day 16 years ago, our distributed computing project @einsteinathome began searching for radio pulsars for the first time.
Previously, volunteers were able to donate computing time on their computers to search for gravitational waves from rotating neutron stars (still mysterious remnants of exploded stars).
Starting 24 March 2009, new applications were available that allowed Einstein@Home volunteers to search Arecibo radio telescope data for radio pulsars (special neutron stars) in close binary systems.
#EinsteinAtHome #CitizenScience #pulsars #RadioPulsars #NeutronStar #astronomy #astrophysics #OnThisDay #OTD
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On this day seven years ago, an international research team (led by @mpi_grav and @MPIfR_Bonn) published the first millisecond pulsar flashing only in gamma rays.
The discovery was possible thanks to the volunteer distributed computing project @einsteinathome, which the researchers used to find many more gamma-ray pulsars.
Millisecond pulsars are neutron stars – remnants of stellar explosions about 20 km in size with strong magnetic fields – that spin many hundreds of times per second around their axis.
Prior to this discovery, all millisecond pulsars observed in gamma rays also emitted radio waves. The newly discovered “PSR J1744-7619” (rotating 213 times per second) is the first known exception.
https://www.science.org/doi/10.1126/sciadv.aao7228 [Open Access]
#Astronomy #Astrophysics #Pulsar #NeutronStar #GammaRays #OTD
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X-rays from Dark Matter?
https://scitechdaily.com/physicists-may-have-found-dark-matter-x-rays-surrounding-magnificent-7-may-be-traces-of-theorized-particle/
#XMMNewton
#ChandraX
#XRay #XRays
#astronomy #DarkMatter
#axion #axions #WIMP
#particle #physics
#astrophysics #cosmology
#NeutronStar #NeutronStars -
X-rays from Dark Matter?
https://scitechdaily.com/physicists-may-have-found-dark-matter-x-rays-surrounding-magnificent-7-may-be-traces-of-theorized-particle/
#XMMNewton
#ChandraX
#XRay #XRays
#astronomy #DarkMatter
#axion #axions #WIMP
#particle #physics
#astrophysics #cosmology
#NeutronStar #NeutronStars -
X-rays from Dark Matter?
https://scitechdaily.com/physicists-may-have-found-dark-matter-x-rays-surrounding-magnificent-7-may-be-traces-of-theorized-particle/
#XMMNewton
#ChandraX
#XRay #XRays
#astronomy #DarkMatter
#axion #axions #WIMP
#particle #physics
#astrophysics #cosmology
#NeutronStar #NeutronStars -
X-rays from Dark Matter?
https://scitechdaily.com/physicists-may-have-found-dark-matter-x-rays-surrounding-magnificent-7-may-be-traces-of-theorized-particle/
#XMMNewton
#ChandraX
#XRay #XRays
#astronomy #DarkMatter
#axion #axions #WIMP
#particle #physics
#astrophysics #cosmology
#NeutronStar #NeutronStars -
The #ChandrasekharLimit is the maximum mass of a white dwarf star, approximately 1.4 times the mass of the Sun.
Beyond this limit, the star's core can no longer support itself against gravitational collapse, leading to the formation of a #NeutronStar or #BlackHole.
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Exciting new gravitational-wave candidate!
Last night, the two @LIGO detectors observed the signal candidate S250206dm. It comes either from the merger of a neutron star with a black hole or from the merger of two neutron stars – either way, it's exciting!
The (luminosity) distance is about 1.1 billion light-years and the position in the sky could be constrained to an area of about 910 square degrees.
The search for possible associated signals in the electromagnetic spectrum has begun. You can follow this in the associated GCN Circulars (see below).
ℹ️ https://gracedb.ligo.org/superevents/S250206dm/view/ [GraceDB]
ℹ️ https://gcn.nasa.gov/circulars?query=S250206dm [associated GCN Circulars]
#GravitationalWaves #astronomy #NeutronStar #astrophysics #physics #S250206dm
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Constraining the equation of state in #NeutronStar cores via the long-ringdown signal: https://www.nature.com/articles/s41467-025-56500-x -> Tuning forks in space - a final pure “tone” may reveal interior of neutron stars: https://aktuelles.uni-frankfurt.de/english/tuning-forks-in-space-a-final-pure-tone-may-reveal-interior-of-neutron-stars/
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#FastRadioBursts originate near the surface of stars
Rare burst indicates #FRB likely originate near the star and that they share a feature with emissions of #pulsars, another subtype of #neutronstar.
Data regarding #FRB20221022A seem pretty clear, Key question is whether this particular FRB tells us much about all other FRBs observed, including those from repeating sources. It remains entirely possible more than one type of event produces something that looks like an FRB
https://arstechnica.com/science/2025/01/new-findings-get-us-closer-to-knowing-what-causes-radio-bursts/ -
Understanding mysterious magnetars 🧲 and radio bursts 🌟 with gravitational waves
A flash of radio waves lasting a few thousandths of a second, as bright as millions or billions of stars, and it’s all over: even almost 20 years after their discovery, fast radio bursts remain one of the most mysterious phenomena in our Universe. Scientists believe that neutron stars – very small and extremely dense stellar remnants with huge magnetic fields – emit these bursts.
An international team has now used gravitational waves to study a nearby neutron star that has emitted several radio bursts. The researchers analyzed data from the German-British GEO600 detector to learn more about the origin of these events. Their results contribute to a better understanding of these extreme events and their theoretical description.
📄 https://iopscience.iop.org/article/10.3847/1538-4357/ad8de0 [Open Access]
#Magnetar #FRB #FastRadioBurst #GravitationalWaves #GEO600 #NeutronStar #SGR1935+2154
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Understanding mysterious magnetars 🧲 and radio bursts 🌟 with gravitational waves
A flash of radio waves lasting a few thousandths of a second, as bright as millions or billions of stars, and it’s all over: even almost 20 years after their discovery, fast radio bursts remain one of the most mysterious phenomena in our Universe. Scientists believe that neutron stars – very small and extremely dense stellar remnants with huge magnetic fields – emit these bursts.
An international team has now used gravitational waves to study a nearby neutron star that has emitted several radio bursts. The researchers analyzed data from the German-British GEO600 detector to learn more about the origin of these events. Their results contribute to a better understanding of these extreme events and their theoretical description.
📄 https://iopscience.iop.org/article/10.3847/1538-4357/ad8de0 [Open Access]
#Magnetar #FRB #FastRadioBurst #GravitationalWaves #GEO600 #NeutronStar #SGR1935+2154
