All articles tagged with #stellar mass black hole
Astronomers have identified Gaia BH1 as the closest known black hole to Earth (about 1,600 light-years away), detected through the Gaia mission by tracking a Sun-like star’s unusual motion around an unseen 10-solar-mass companion in a wide orbit—an arrangement that challenges standard binary evolution models and raises questions about how such systems form.
Astronomers using two decades of precise astrometry from NASA's Hubble Space Telescope and the James Webb Space Telescope have identified the first stellar-mass black hole in the Milky Way's Omega Centauri, named oMEGACat BH-2, by tracking a visible star's sky motion around an unseen companion. The binary completes an orbit every 94 years, and the black hole weighs about 4.46 solar masses, confirming a black hole rather than a neutron star. The system likely formed through dynamical interactions in the cluster; this discovery supports Omega Centauri's hidden black-hole population and points to more finds as Hubble, Webb, and future missions survey the cluster.
Astronomers using over two decades of Hubble data and JWST observations have confirmed the first stellar-mass black hole in the Omega Centauri globular cluster, designated oMEGACat BH-2, with a mass of 4.46 solar masses orbiting a sun-like star every 94 years. The finding suggests Omega Centauri could host a large hidden population of such black holes and highlights astrometry as a key method, with plans to find more using Roman Space Telescope in the future.
Scientists using data from ESA's Gaia mission have discovered a massive dormant black hole, named Gaia BH3, in the constellation Aquila, less than 2000 light-years from Earth, with a mass of about 33 times that of the Sun. This is the first time a black hole of stellar origin this big has been spotted within the Milky Way, challenging current understanding of how massive stars develop and evolve. The discovery sheds new light on the formation of stellar-mass black holes and sets the stage for future astronomical discoveries.
The European space telescope Gaia has discovered a massive stellar-mass black hole, Gaia-BH3, just 2,000 light years from Earth, making it the second-closest black hole to our planet ever discovered. This landmark finding represents the first time such a massive black hole with a stellar origin has been found close to Earth. The discovery sheds light on the population of dormant stellar black holes in our galaxy and challenges previous assumptions about the formation of black holes.