#white-dwarfs — Public Fediverse posts

A Calibrated Bayesian Search for Potential Chemical Technosignatures in Polluted White Dwarfs: https://iopscience.iop.org/article/10.3847/1538-4357/ae742c -> Seeking Technosignatures in Polluted #WhiteDwarfs: https://aasnova.org/2026/07/15/seeking-technosignatures-in-polluted-white-dwarfs/

A Calibrated Bayesian Search for Potential Chemical Technosignatures in Polluted White Dwarfs: https://iopscience.iop.org/article/10.3847/1538-4357/ae742c -> Seeking Technosignatures in Polluted #WhiteDwarfs: https://aasnova.org/2026/07/15/seeking-technosignatures-in-polluted-white-dwarfs/

Direct detections of white dwarfs in four WD+dM post-common envelope binaries within 20 pc: https://academic.oup.com/mnras/article/550/2/stag1195/8733147?login=false -> Scientists spot four #WhiteDwarfs hiding under our noses: https://warwick.ac.uk/news/pressreleases/dead-stars-in-our-cosmic-backyard/ - Warwick astronomers using the Hubble Space Telescope have found four new ‘local’ stars, showing us we can still find surprises in the nearby region of space that we thought we knew so well.

Direct detections of white dwarfs in four WD+dM post-common envelope binaries within 20 pc: https://academic.oup.com/mnras/article/550/2/stag1195/8733147?login=false -> Scientists spot four #WhiteDwarfs hiding under our noses: https://warwick.ac.uk/news/pressreleases/dead-stars-in-our-cosmic-backyard/ - Warwick astronomers using the Hubble Space Telescope have found four new ‘local’ stars, showing us we can still find surprises in the nearby region of space that we thought we knew so well.

https://www.space.com/astronomy/stars/scientists-spot-4-superdense-stellar-corpses-hiding-behind-their-red-dwarf-companions

#whitedwarfs
#RedGiant

https://www.space.com/astronomy/stars/scientists-spot-4-superdense-stellar-corpses-hiding-behind-their-red-dwarf-companions

#whitedwarfs
#RedGiant

NASA’s Hubble Sees White Dwarf Eating Piece of Pluto-Like Object https://science.nasa.gov/missions/hubble/nasas-hubble-sees-white-dwarf-eating-piece-of-pluto-like-object/ #NASA #AstrophysicsDivision #DwarfPlanets #GoddardSpaceFlightCenter #HubbleSpaceTelescope #TheKuiperBelt #WhiteDwarfs

NASA’s Hubble Sees White Dwarf Eating Piece of Pluto-Like Object https://science.nasa.gov/missions/hubble/nasas-hubble-sees-white-dwarf-eating-piece-of-pluto-like-object/ #NASA #AstrophysicsDivision #DwarfPlanets #GoddardSpaceFlightCenter #HubbleSpaceTelescope #TheKuiperBelt #WhiteDwarfs

NASA’s Hubble Uncovers Rare White Dwarf Merger Remnant https://science.nasa.gov/missions/hubble/nasas-hubble-uncovers-rare-white-dwarf-merger-remnant/ #NASA #Astrophysics #AstrophysicsDivision #GoddardSpaceFlightCenter #HubbleSpaceTelescope #Stars #TheUniverse #WhiteDwarfs

NASA’s Hubble Uncovers Rare White Dwarf Merger Remnant https://science.nasa.gov/missions/hubble/nasas-hubble-uncovers-rare-white-dwarf-merger-remnant/ #NASA #Astrophysics #AstrophysicsDivision #GoddardSpaceFlightCenter #HubbleSpaceTelescope #Stars #TheUniverse #WhiteDwarfs

NGC 6072 (NIRCam Compass Image) ✨

#PlanetaryNebulas #WhiteDwarfs

⏩ 3 new pictures from Webb (NASA) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=3&user=OptimusPrimeBot&ilshowall=1&offset=20250731043331

NGC 6072 (NIRCam Compass Image) ✨

#PlanetaryNebulas #WhiteDwarfs

⏩ 3 new pictures from Webb (NASA) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=3&user=OptimusPrimeBot&ilshowall=1&offset=20250731043331

NASA’s Webb Traces Details of Complex Planetary Nebula https://science.nasa.gov/centers-and-facilities/goddard/nasas-webb-traces-details-of-complex-planetary-nebula/ #NASA #Astrophysics #GoddardSpaceFlightCenter #JamesWebbSpaceTelescopeJWST #Nebulae #PlanetaryNebulae #ScienceResearch #Stars #TheUniverse #WhiteDwarfs

NASA’s Webb Traces Details of Complex Planetary Nebula https://science.nasa.gov/centers-and-facilities/goddard/nasas-webb-traces-details-of-complex-planetary-nebula/ #NASA #Astrophysics #GoddardSpaceFlightCenter #JamesWebbSpaceTelescopeJWST #Nebulae #PlanetaryNebulae #ScienceResearch #Stars #TheUniverse #WhiteDwarfs

Planetary Nebula NGC 1514 (WISE and Webb Images Side by Side) ✨

#PlanetaryNebulas #WhiteDwarfs

⏩ 3 new pictures from Webb (NASA) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=3&user=OptimusPrimeBot&ilshowall=1&offset=20250415053210

Planetary Nebula NGC 1514 (WISE and Webb Images Side by Side) ✨

#PlanetaryNebulas #WhiteDwarfs

⏩ 3 new pictures from Webb (NASA) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=3&user=OptimusPrimeBot&ilshowall=1&offset=20250415053210

With NASA’s Webb, Dying Star’s Energetic Display Comes Into Full Focus https://science.nasa.gov/missions/webb/with-nasas-webb-dying-stars-energetic-display-comes-into-full-focus/ #NASA #Astrophysics #BinaryStars #GoddardSpaceFlightCenter #JamesWebbSpaceTelescopeJWST #Nebulae #PlanetaryNebulae #ScienceResearch #Stars #TheUniverse #WhiteDwarfs

With NASA’s Webb, Dying Star’s Energetic Display Comes Into Full Focus https://science.nasa.gov/missions/webb/with-nasas-webb-dying-stars-energetic-display-comes-into-full-focus/ #NASA #Astrophysics #BinaryStars #GoddardSpaceFlightCenter #JamesWebbSpaceTelescopeJWST #Nebulae #PlanetaryNebulae #ScienceResearch #Stars #TheUniverse #WhiteDwarfs

X-ray Clues Reveal Destroyed Planet https://www.nasa.gov/image-article/x-ray-clues-reveal-destroyed-planet/ #NASA #ChandraXRayObservatory #HelixNebula #WhiteDwarfs

X-ray Clues Reveal Destroyed Planet https://www.nasa.gov/image-article/x-ray-clues-reveal-destroyed-planet/ #NASA #ChandraXRayObservatory #HelixNebula #WhiteDwarfs

📄 Reading material for your next break 🛋️

What is so special about @LISA, the planned gravitational-wave observatory in space?

This “Einstein Online” article provides more information about the European Space Agency (ESA) mission, which is to observe Einstein's space-time ripples with a gigantic laser satellite triangle in the 2030s:

➡️ https://www.einstein-online.info/en/spotlight/lisa/

Our web portal “Einstein Online” is dedicated to Einstein’s theory of relativity and its applications. Our authors come from renowned institutions and research institutes all over the world. All articles are available in both German and English and are accompanied by numerous illustrations and animations.

ℹ️ https://www.einstein-online.info/en

#LISA #GravitationalWaves #ESA #Astrophysics #BlackHoles #WhiteDwarfs #NeutronStars #EinsteinOnline

X-ray Signal Points to Destroyed Planet, Chandra Finds https://www.nasa.gov/image-article/x-ray-signal-points-to-destroyed-planet-chandra-finds/ #NASA #ChandraXRayObservatory #HelixNebula #HubbleSpaceTelescope #MarshallAstrophysics #MarshallSpaceFlightCenter #Nebulae #PlanetaryNebulae #Stars #TheUniverse #WhiteDwarfs

X-ray Signal Points to Destroyed Planet, Chandra Finds https://www.nasa.gov/image-article/x-ray-signal-points-to-destroyed-planet-chandra-finds/ #NASA #ChandraXRayObservatory #HelixNebula #HubbleSpaceTelescope #MarshallAstrophysics #MarshallSpaceFlightCenter #Nebulae #PlanetaryNebulae #Stars #TheUniverse #WhiteDwarfs

White Dwarfs are Often Polluted With Heavier Elements. Now We Know Why https://www.universetoday.com/166877/white-dwarfs-are-often-polluted-with-heavier-elements-now-we-know-why/ #stellarcomposition #stellarevolution #stellarremnants #planetesimals #solarsystem #whitedwarfs #whitedwarf #astronomy #featured

Little Dumbbell Nebula (WFC3 Compass Image) ✨

#Nebulas #PlanetaryNebulas #WhiteDwarfs

⏩ 2 new pictures from Hubble (NASA) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=4&user=OptimusPrimeBot&ilshowall=1&offset=20240424093235

Little Dumbbell Nebula (WFC3 Compass Image) ✨

#Nebulas #PlanetaryNebulas #WhiteDwarfs

⏩ 2 new pictures from Hubble (NASA) https://commons.wikimedia.org/wiki/Special:ListFiles?limit=4&user=OptimusPrimeBot&ilshowall=1&offset=20240424093235

✨ 2 new pictures from Webb (NASA)
- Ring Nebula (MIRI image)
- Ring Nebula (NIRCam Image)

#EmissionNebulas #Nebulas #PlanetaryNebulas #Stars #WhiteDwarfs

⏩ https://commons.wikimedia.org/wiki/Special:ListFiles?limit=2&user=OptimusPrimeBot&ilshowall=1&offset=20230822103042

This white dwarf star has two “faces” - Astronomers have discovered an unusual blue-tinted white d... - https://arstechnica.com/?p=1954615 #astrophysics #whitedwarfs #astronomy #science #physics

This white dwarf star has two “faces” - Astronomers have discovered an unusual blue-tinted white d... - https://arstechnica.com/?p=1954615 #astrophysics #whitedwarfs #astronomy #science #physics

Ars Technica: This white dwarf star has two “faces” https://arstechnica.com/?p=1954615 #Tech #arstechnica #IT #Technology #astrophysics #whitedwarfs #astronomy #Science #Physics #science

Hot #whitedwarfs and pre-white #dwarfs discovered with #SALT: https://academic.oup.com/mnras/article/519/2/2321/6967306?login=false -> Astronomers discover eight new super-hot stars: https://uni-tuebingen.de/en/university/news-and-publications/press-releases/press-releases/article/astronomen-entdecken-acht-superheisse-sterne/

Hot #whitedwarfs and pre-white #dwarfs discovered with #SALT: https://academic.oup.com/mnras/article/519/2/2321/6967306?login=false -> Astronomers discover eight new super-hot stars: https://uni-tuebingen.de/en/university/news-and-publications/press-releases/press-releases/article/astronomen-entdecken-acht-superheisse-sterne/

Meet the micronova: Astronomers discovered new type of stellar explosion - Artist's animation of a micronova, a new type of stellar explosion. Credit:... - https://arstechnica.com/?p=1848938 #stellarexplosions #stellarevolution #astrophysics #binarystars #whitedwarfs #micronovae #astronomy #science

"Astronomers have found a tiny but mighty dead(ish)star, a white dwarf that is both the smallest and most massive ever seen. It also spins rapidly, packs a walloping magnetic field, and might eventually collapse into an even smaller and denser neutron star."

https://www.syfy.com/syfywire/tiny-but-mighty-astronomers-find-the-smallest-but-most-massive-white-dwarf-ever-seen

#Astronomy #Space #Stars #WhiteDwarfs #Physics

Space-based gravitational-wave detector may detect strange exoplanets - Enlarge / A depiction of one of the trio of satellites that will form the Laser Interferometer Spac... more: https://arstechnica.com/?p=1532915 #gravitationalwaves #astrophysics #whitedwarfs #exoplanets #astronomy #science #lisa