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Astronomers have discovered the most ancient known spiral galaxy in the Universe. Analyzing data obtained with the Atacama Large Millimeter/submillimeter Array (ALMA), researchers found a galaxy with a spiral dated at only 1.4 billion years after the Big Bang. This is the most ancient galaxy of its kind ever observed. The discovery of a galaxy with a spiral structure at such an early stage is an important clue to solving the classic questions of astronomy: “How and when did spiral galaxies form?” “I was excited because I had never seen such clear evidence of a rotating disk, spiral structure, and centralized mass structure in a distant galaxy in any previous literature,” says Takafumi Tsukui, at SOKENDAI, the graduate university for advanced studies, and the lead author of the research paper published in the journal ....
Science 2 hours, 19 minutes It has recently come to light that researchers have discovered a spiral galaxy in the Universe that was formed 1.4 billion years after the Big Bang. In fact, the recently discovered spiral galaxy is the most ancient galaxy ever observed. As reported by ALMA Observatory, researchers analyzed the data collected using the Atacama Large Millimeter/submillimeter Array (ALMA). The research paper around the discovery has been published in the journal Science. Takafumi Tsukui, a graduate student at SOKENDAI and the lead author of the research paper along with his supervisor Satoru Iguchi, a professor at SOKENDAI and the National Astronomical Observatory of Japan, noticed a galaxy called BRI 1335-0417 in the ALMA Science Archive. ....
E-Mail IMAGE: A black hole (marked by the red x) at the centre of galaxy MRC 0600-399 emits a jet of particles that bends into a double-scythe T-shape that follows the magnetic. view more Credit: Modified from Chibueze, Sakemi, Ohmura et al. (2021) Nature Fig. 1(b) For the first time, researchers have observed plasma jets interacting with magnetic fields in a massive galaxy cluster 600 million light years away, thanks to the help of radio telescopes and supercomputer simulations. The findings, published in the journal Nature, can help clarify how such galaxy clusters evolve. Galaxy clusters can contain up to thousands of galaxies bound together by gravity. Abell 3376 is a huge cluster forming as a result of a violent collision between two sub-clusters of galaxies. Very little is known about the magnetic fields that exist within this and similar galaxy clusters. ....
It was formed around 12.4 billion years ago. The blurry image of BRI 1335-0417, the oldest spiral galaxy in the universe, captured using radio emissions from carbon ions within the distant galaxy. (Image credit: ALMA (ESO/NAOJ/NRAO), T. Tsukui & S. Iguchi) Astronomers have identified the oldest known spiral galaxy in the universe, which was formed around 12.4 billion years ago, after rediscovering a fuzzy, forgotten photo taken by the Atacama Large Millimeter/submillimeter Array (ALMA). The new galaxy, named BRI 1335-0417, measures 15,000 light-years across, making it a third as big as our spiral-shaped home galaxy, the Milky Way. The galaxy formed around 1.4 billion years after the ....
Plasma jets observed interacting with magnetic fields in far-off galaxy cluster New observations from radio telescopes and supercomputer simulations show plasma jets interacting with magnetic fields in a massive galaxy cluster far far away - no really, this cluster is nearly 600 million light-years away! The images can shed light on the formation of galaxy clusters, which, as the name might suggest, are thousands of galaxies held together by gravity, as well as the existence of magnetic fields within these clusters. The findings are published in the journal Nature. It is generally difficult to directly examine the structure of intracluster magnetic fields, says Nagoya University astrophysicist Tsutomu Takeuchi, who was involved in the research. Our results clearly demonstrate how long-wavelength radio observations can help explore this interaction. ....