Galaxy Evolution Can Be Affected by Black Hole Jets
Researchers found radio jets ionize hydrogen in the circumgalactic medium, showing black holes can slow star formation by heating gas along their paths.
- Astronomer Sanchayeeta Borthakur of Arizona State University and Namrata Roy of the Raman Research Institute identified that supermassive black hole jets influence galaxy evolution by ionizing gas far beyond the galaxy's visible boundaries.
- By heating and disrupting gas throughout the circumgalactic medium, black hole jets act as a brake on star formation, preventing material from cooling and falling inward to fuel new stars.
- Using the Dark Energy Spectroscopic Instrument and the LOFAR Two-meter Sky Survey, researchers identified a directional H-alpha glow revealing jets ionizing hydrogen along their specific paths rather than illuminating everything nearby.
- Extending roughly 10-20 times farther than the visible galaxy, the CGM facilitates jet reach across vast distances. "What excites me most is the scale of the connection," Roy said about the impact.
- Theorists now have a new method to test how black hole jets shape long-term galaxy evolution.
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Galaxy Evolution Can be Affected by Black Hole Jets
In recent decades, astronomers have found evidence that supermassive black holes can really mess with their galaxies' evolution. They gobble up material intended for star formation, quenching the birth of stars. Conversely, jets streaming away from those hungry monsters can also energize gas-rich regions and enhance the chances of a galaxy birthing batches of stars in those areas.
Scientists have discovered how plasma jets emitted by supermassive black holes cause "death" to host galaxies, notes Space.com, reading a study published in the Astrophysical Journal...
Black hole jets may decide the fate of entire galaxies
Powerful jets from supermassive black holes can disturb star-forming gas far beyond a galaxy’s visible edge, leaving a glowing trail hundreds of thousands of light-years long. By keeping this gas hot and preventing it from falling inward, the jets may help determine whether a galaxy keeps forming stars or becomes quiet.
Black hole jets reach far beyond galaxies' visible edges, potentially deciding their fate
Galaxies are enormous and hold hundreds of billions of stars. These stars form from cold, dense gas. Every large galaxy, including the Milky Way, is wrapped in a huge envelope of gas called the circumgalactic medium, or CGM. This reservoir of raw material stretches 10–20 times the size of the visible portion of the galaxy.
Black-Hole Jets May Heat Gas Far Beyond Galaxies
Black-Hole Jets Reach Beyond Galaxies A study of 324 galaxies has found evidence that powerful jets launched by supermassive black holes can energise gas far beyond their host galaxies, potentially affecting the material needed to form new stars. The gas, known as the circumgalactic medium (CGM), can extend 10–20 times farther than a galaxy itself. […] The post Black-Hole Jets May Heat Gas Far Beyond Galaxies appeared first on StratNews Global.
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