All articles tagged with #cristal 02
New JWST observations of the merging galaxy CRISTAL-02 show an enormous, star-formation–driven outflow ejecting gas faster than it forms stars, potentially exhausting the galaxy’s fuel in under 100 million years and explaining why some early massive galaxies stopped forming stars, a mechanism that may be widespread across cosmic history and inform cosmological models.
New James Webb Space Telescope observations of the merging galaxy CRISTAL-02, about 1 billion years after the Big Bang, show an enormous gas outflow (~1.5 billion solar masses) and a star-formation rate of ~260 solar masses per year, while gas is being expelled at >500 solar masses per year. The winds, driven by rapid star formation and supernovae (and possibly aided by a black hole), can energize and disperse molecular gas, quenching star formation. If the outflow continues, the galaxy could exhaust its fuel in under 100 million years, offering a window into a widespread mechanism that could explain the abundance of quiescent galaxies in the early universe and inform cosmological simulations—and it hints at similar futures for galaxies like the Milky Way when they collide with Andromeda.
Using JWST and ALMA, astronomers observed the merging galaxy CRISTAL-02 about 1 billion years after the Big Bang and detected a powerful, high-velocity outflow that ejects cold gas far from the galaxy. This wind can strip the material needed to form new stars, and if it continues, CRISTAL-02 could be dead in under 50 million years, helping explain why many massive early galaxies stopped forming stars so quickly. The findings, published in Monthly Notices of the Royal Astronomical Society: Letters, suggest mergers and intense starbursts may have driven widespread galaxy-killing winds in the young universe.
Astronomers using the James Webb Space Telescope and ALMA observed CRISTAL-02, a massive galaxy in the early universe, shedding gas via a gigantic cold-gas plume driven by a wind. The wind, fueled by intense star formation likely triggered by a galactic collision, ejects gas faster than the galaxy can convert it into stars, potentially starving it of fuel in under 100 million years and producing a dead, star-formation-silent galaxy. This suggests that galactic winds from star formation—not just supermassive black holes—can kill large galaxies early on.