Gaia BH3 (Gaia DR3 4318465066420528000) is a binary system consisting of a metal-poor giant star with spectral type G and a stellar-mass black hole. Gaia BH3 is located 1926 light years away (590.6 ± 5.8 pc away) in the constellation of Aquila. Gaia BH3 is the first black hole discovered from preliminary Gaia DR4 astrometric data. [2]

2024年4月16日 · The star orbiting Gaia BH3 at about 16 times the Sun–Earth distance is rather uncommon: an ancient giant star, that formed in the first two billion years after the Big Bang, at the time our galaxy started to assemble.

2024年4月16日 · Gaia-BH3 is located just 2,000 light years from Earth, making it the second-closest black hole to our planet ever discovered. The closest black hole to Earth is Gaia-BH1 (also discovered by...

2024年4月17日 · The most massive stellar black hole in the Milky Way is now Gaia BH3. It has a mass 33 times that of our sun. Gaia BH3 is located 2,000 light-years away in the constellation Aquila, making it...

With an orbit about 16 times the Sun-Earth distance, the companion star of Gaia BH3 is rather uncommon: an old giant star from the Galactic stellar halo, moving in the opposite direction to the stars of the Galactic disk.

2024年4月16日 · BINARYS is a tool allowing to combine the Hipparcos and/or Gaia absolute astrometric data with relative astrometry and/or radial velocity measurements to determine the orbits of binary systems. BINARYS has been updated to work with Gaia BH3 data and was originally already published on the Gaia Community Tools page.

2024年5月9日 · The newfound black hole, an intense, light-trapping abyss which has been named Gaia BH3, lurks just 1,926 light-years from Earth in the Aquila constellation. (That makes it the …

2024年4月17日 · Less than 2,000 light-years away from Earth, scientists have discovered a “sleeping giant”—the Milky Way’s largest stellar black hole, with a mass 33 times greater than that of our sun. Though the...

2024年4月16日 · The European Space Agency’s Gaia mission involving UCL researchers has discovered the most massive black hole in our galaxy to date that formed from an exploding star. The black hole, known as Gaia BH3, is 33 times the mass of our Sun and located relatively close to Earth at 2,000 light years away. (The Milky Way is 100,000 light years across.)

2024年4月17日 · Here we explore the relationship between this black hole, known as Gaia BH3, and the nearby ED-2 halo stellar stream. We study the orbital characteristics of the Gaia BH3 binary and present measurements of the chemical abundances of ED-2 member stars derived from high-resolution spectra obtained with the VLT.