#gravitationalwaves — Public Fediverse posts

Öffentlicher Vortrag:

-- „Pulsare und Gravitationswellen“ --

von Kathrin Grunthal, M.Sc., MPIfR Bonn.
📆 17. September
⏰️ 19:00 Uhr
📍 Argelander-Institut für Astronomie
Auf dem Hügel 71
Bonn, NRW 53121

👉 https://www.volkssternwarte-bonn.de/wordpress/kalender/bonner-sternenhimmel-pulsare-und-gravitationswellen/

❗ Eine Anmeldung zur Veranstaltung ist nicht erforderlich.

☀️ Sofern gutes Wetter herrscht, kann im Anschluss an den Vortrag eine Beobachtung an einem Teleskop angeboten werden.

#vortrag #opentalk #äffentlichervortrag #scienceforeveryone #MPIfR #pulsar #gravitationalwaves #Einstein

Öffentlicher Vortrag:

-- „Pulsare und Gravitationswellen“ --

von Kathrin Grunthal, M.Sc., MPIfR Bonn.
📆 17. September
⏰️ 19:00 Uhr
📍 Argelander-Institut für Astronomie
Auf dem Hügel 71
Bonn, NRW 53121

👉 https://www.volkssternwarte-bonn.de/wordpress/kalender/bonner-sternenhimmel-pulsare-und-gravitationswellen/

❗ Eine Anmeldung zur Veranstaltung ist nicht erforderlich.

☀️ Sofern gutes Wetter herrscht, kann im Anschluss an den Vortrag eine Beobachtung an einem Teleskop angeboten werden.

#vortrag #opentalk #äffentlichervortrag #scienceforeveryone #MPIfR #pulsar #gravitationalwaves #Einstein

Öffentlicher Vortrag:

-- „Pulsare und Gravitationswellen“ --

von Kathrin Grunthal, M.Sc., MPIfR Bonn.
📆 17. September
⏰️ 19:00 Uhr
📍 Argelander-Institut für Astronomie
Auf dem Hügel 71
Bonn, NRW 53121

👉 https://www.volkssternwarte-bonn.de/wordpress/kalender/bonner-sternenhimmel-pulsare-und-gravitationswellen/

❗ Eine Anmeldung zur Veranstaltung ist nicht erforderlich.

☀️ Sofern gutes Wetter herrscht, kann im Anschluss an den Vortrag eine Beobachtung an einem Teleskop angeboten werden.

#vortrag #opentalk #äffentlichervortrag #scienceforeveryone #MPIfR #pulsar #gravitationalwaves #Einstein

Öffentlicher Vortrag:

-- „Pulsare und Gravitationswellen“ --

von Kathrin Grunthal, M.Sc., MPIfR Bonn.
📆 17. September
⏰️ 19:00 Uhr
📍 Argelander-Institut für Astronomie
Auf dem Hügel 71
Bonn, NRW 53121

👉 https://www.volkssternwarte-bonn.de/wordpress/kalender/bonner-sternenhimmel-pulsare-und-gravitationswellen/

❗ Eine Anmeldung zur Veranstaltung ist nicht erforderlich.

☀️ Sofern gutes Wetter herrscht, kann im Anschluss an den Vortrag eine Beobachtung an einem Teleskop angeboten werden.

#vortrag #opentalk #äffentlichervortrag #scienceforeveryone #MPIfR #pulsar #gravitationalwaves #Einstein

Öffentlicher Vortrag:

-- „Pulsare und Gravitationswellen“ --

von Kathrin Grunthal, M.Sc., MPIfR Bonn.
📆 17. September
⏰️ 19:00 Uhr
📍 Argelander-Institut für Astronomie
Auf dem Hügel 71
Bonn, NRW 53121

👉 https://www.volkssternwarte-bonn.de/wordpress/kalender/bonner-sternenhimmel-pulsare-und-gravitationswellen/

❗ Eine Anmeldung zur Veranstaltung ist nicht erforderlich.

☀️ Sofern gutes Wetter herrscht, kann im Anschluss an den Vortrag eine Beobachtung an einem Teleskop angeboten werden.

#vortrag #opentalk #äffentlichervortrag #scienceforeveryone #MPIfR #pulsar #gravitationalwaves #Einstein

🕳️ oddquark // Black Hole Watch — 2026-09-08

Ringdown chirps after mergers could be whispering secrets past the no-hair theorem 🤯 imagine using gravitational wave overtones to catch a black hole's hidden "fuzz" and rewrite Einstein's rulebook on horizons!

🔗 https://phys.org/news/2026-09-black-holes-hidden-hair-scientists.html

#BlackHole #Astrophysics #GravitationalWaves #EventHorizon

🕳️ oddquark // Black Hole Watch — 2026-09-08

Ringdown chirps after mergers could be whispering secrets past the no-hair theorem 🤯 imagine using gravitational wave overtones to catch a black hole's hidden "fuzz" and rewrite Einstein's rulebook on horizons!

🔗 https://phys.org/news/2026-09-black-holes-hidden-hair-scientists.html

#BlackHole #Astrophysics #GravitationalWaves #EventHorizon

🕳️ oddquark // Black Hole Watch — 2026-09-07

A STAR POWERED BY A BLACK HOLE?! JWST may have caught the missing link for those 'little red dots' — a gas-shrouded black hole eating so violently it mimics stellar light. Early universe physics is unhinged 🤯🕳️

🔗 https://www.forbes.com/sites/jamiecartereurope/2026/09/05/webb-telescope-find-a-new-kind-of-object---a-black-hole-star/

#BlackHole #Astrophysics #GravitationalWaves #EventHorizon

🕳️ oddquark // Black Hole Watch — 2026-09-07

A STAR POWERED BY A BLACK HOLE?! JWST may have caught the missing link for those 'little red dots' — a gas-shrouded black hole eating so violently it mimics stellar light. Early universe physics is unhinged 🤯🕳️

🔗 https://www.forbes.com/sites/jamiecartereurope/2026/09/05/webb-telescope-find-a-new-kind-of-object---a-black-hole-star/

#BlackHole #Astrophysics #GravitationalWaves #EventHorizon

🕳️ oddquark // Black Hole Watch — 2026-09-06

Light from BEHIND a black hole, bent around it and delayed on arrival — we're literally watching photons trace spacetime curvature predicted by GR. The accretion disk's hidden far side, revealed by pure gravity. Absolutely unhinged 🤯🌌

🔗 https://www.thebrighterside.news/post/astronomers-confirm-einsteins-gravity-by-viewing-light-from-behind-a-supermassive-black-hole/

#BlackHole #Astrophysics #GravitationalWaves #EventHorizon

🕳️ oddquark // Black Hole Watch — 2026-09-06

Light from BEHIND a black hole, bent around it and delayed on arrival — we're literally watching photons trace spacetime curvature predicted by GR. The accretion disk's hidden far side, revealed by pure gravity. Absolutely unhinged 🤯🌌

🔗 https://www.thebrighterside.news/post/astronomers-confirm-einsteins-gravity-by-viewing-light-from-behind-a-supermassive-black-hole/

#BlackHole #Astrophysics #GravitationalWaves #EventHorizon

How it all began almost exactly 31 years ago:

Karsten Danzmann breaks the ground for the German-British gravitational-wave detector GEO600 on 4 September 1995. He did not have to dig the two 600 meter long arm trenches all by himself, though 😉

Until the end of 1995 the foundations for the central building were done and the arm trenches were prepared.

➡️ https://www.geo600.org/66095/1995

#GEO600Highlights #GEO600 ^#Research #ScienceHistory #GravitationalWaves

📣 New title image 🖼️

The image shows results from computer simulations of neutron star mergers at five different times (from less then 2 to about 120 milliseconds) after the merger. Researchers from the “Computational Relativistic Astrophysics” department at the @mpi_grav in Potsdam conducted these simulations to investigate the dynamics and convective stability of massive neutron stars that form in the violent events.

In the image, the top panel shows the evolution of the rest-mass density, and the bottom panel that of the thermal contribution to the specific internal energy. The image is from Fig. 1 in the publication “Convective stability analysis of massive neutron stars formed in binary mergers”.

➡️ https://journals.aps.org/prd/abstract/10.1103/w8gq-3d54 [Open Access publication]

#NeutronStar #Astrophysics #GravitationalWaves #Astronomy #Astrodon

The GEO600 project will end on 31 December 2026

The gravitational-wave detector GEO600 south of Hanover, Germany, will cease operation at the end of 2026. The last Open Day will take place this summer. Group tours will be offered until the end of the year. In early 2027, dismantling of the facility will begin.

@maxplanckgesellschaft director Karsten Danzmann will retire on 31 March 2026. As a consequence, funding for the GEO600 project will terminate at the end of the year.

GEO600 is a beacon of international research. Technologies developed and tested in the GEO project are now used in all major gravitational-wave detectors around the world. The findings and experience gained also play a role in preparing future observatories such as the Einstein Telescope and the Cosmic Explorer.

ℹ️ https://www.geo600.org/240777/das-geo600-projekt-endet-am-31-dezember-2026

#GravitationalWaves #Physics #Astrophysics #Research #GEO600

NASA Researchers Probe Tangled Magnetospheres of Merging Neutron Stars https://science.nasa.gov/science-research/nasa-researchers-probe-tangled-magnetospheres-of-merging-neutron-stars/ #NASA #AmesResearchCenter #Astrophysics #GammaRayBursts #GoddardSpaceFlightCenter #GravitationalWaves #HighTechComputing #LaserInterferometerGravitationalWaveObservatoryLIGO #NeutronStars #OriginEvolutionOfTheUniverse #ScienceResearch #SensingTheUniverseMultimessengerAstronomy

Almost exactly 30 years ago – on Monday, 4 September 1995 – on a meadow on the grounds of the [email protected] near Ruthe, south of Hanover, Germany: Karsten Danzmann breaks the ground for the German-British gravitational-wave detector GEO600.

GEO600 is a key technology development center of the international gravitational-wave research community. Technologies developed and tested in the GEO project are now used in all large gravitational-wave detectors in the world.

You can read the complete story of GEO600 from the groundbreaking ceremony to the present day in the GEO600 diary.

➡️ https://www.geo600.org/25089/geo600-diary

Today, GEO600 researchers will take their detector to the next level. Their goal is to search for gravitational waves at frequencies much higher than those observed by current instruments and to deepen our understanding of dark matter and the early Universe.

#GEO600 #GravitationalWaves #Hannover #Research #Science

🎉 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

💡 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

Leveling up GEO600 🚀🎚️

The gravitational-wave detector GEO600 is being upgraded to enable observations at very high frequencies.

ℹ️ https://www.geo600.org/219762/levelling-up-geo600

The detection of high-frequency gravitational waves could shed light on dark matter, exotic physics, and the early Universe.

The upgrades at the cutting edge of science will maintain GEO600's status as a pioneer in gravitational-wave research.

#GEO600 #GEO600VHF #GravitationalWaves #DarkMatter #astrophysics #physics #research

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.

ℹ️ https://www.geo600.org/219378/understanding-mysterious-magnetars-and-radio-bursts-with-gravitational-waves

📄 https://iopscience.iop.org/article/10.3847/1538-4357/ad8de0 [Open Access]

#Magnetar #FRB #FastRadioBurst #GravitationalWaves #GEO600 #NeutronStar #SGR1935+2154

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.

ℹ️ https://www.geo600.org/219378/understanding-mysterious-magnetars-and-radio-bursts-with-gravitational-waves

📄 https://iopscience.iop.org/article/10.3847/1538-4357/ad8de0 [Open Access]

#Magnetar #FRB #FastRadioBurst #GravitationalWaves #GEO600 #NeutronStar #SGR1935+2154

Date: Thursday 8 August 2024
Time: 13:00
Title: We Need to Talk About Kelvin
Location: Hall 1
Speaker: Professor Martin Hendry

To find this item go to https://guide.glasgow2024.org/ and search for Hendry.

#GravitationalWaves #LordKelvin #Kelvin #GlasgowUniversity #WorldCon #Glasgow2024