A team of astronomers have studied 16 supermassive black holes that are firing powerful beams into space, to track where these beams, or jets, are
X-ray: NASA/CXC/Univ. of Bologna/F. Ubertosi; Insets Radio: NSF/NRAO/VLBA; Wide field Image: Optical/IR: Univ. of Hawaii/Pan-STARRS; Image Processing: NASA/CXC/SAO/N. Wolk that are firing powerful beams into space, to track where these beams, or jets, are pointing now and where they were aimed in the past, as reported in our and the U.S.
Across the entire sample the researchers found that about a third of the 16 galaxies have beams that are pointing in completely different directions than they were before. Some have changed directions by nearly 90 degrees in some cases, and over timescales between one million years and a few tens of millions of years. Given that the black holes are of the order of 10 billion years old, this represents a relatively rapid change for these galaxies.X-ray: NASA/CXC/Univ. of Bologna/F.
Scientists think that beams from black holes and the cavities they carve out play an important role in how many form in their galaxies. The beams pump energy into the hot gas in and around the galaxy, preventing it from cooling down enough to form huge numbers of new stars. If the beams change directions by large amounts, they can tamp down star formation across much larger areas of the galaxy.
Black Holes Chandra X-Ray Observatory Galaxies Galaxies Stars & Black Holes Galaxies Stars & Black Holes Research Galaxy Clusters Marshall Space Flight Center Science & Research Supermassive Black Holes The Universe
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