![quasar galaxy quasar galaxy](https://starburstfound.org/wp-content/uploads/2011/03/11-gammabubbles.jpg)
![quasar galaxy quasar galaxy](https://apod.nasa.gov/apod/image/1702/QuadQuasarLens_Hubble_2020.jpg)
The Hubble ultraviolet data show that these light absorption features created from material along the path of the light were shifted in the spectrum because of the fast motion of the gas across space. Ostriker, of Columbia University in New York and Princeton University in New Jersey.Īstronomers studied 13 quasar outflows, and they were able to clock the breakneck speed of gas being accelerated by the quasar wind by looking at spectral "fingerprints" of light from the glowing gas. Putting the observed outflows into our simulations solves these outstanding problems in galactic evolution," explained eminent cosmologist Jeremiah P. "Both theoreticians and observers have known for decades that there is some physical process that shuts off star formation in massive galaxies, but the nature of that process has been a mystery. This study shows that such powerful quasar outflows should be prevalent in the early universe. Numerical simulations of galaxy evolution suggest that such outflows can explain some important cosmological puzzles, such as why astronomers observe so few large galaxies in the universe, and why there is a relationship between the mass of the galaxy and the mass of its central black hole. "You'd get a huge light show-like Christmas trees all over the galaxy." "You'll get lots of radiation first in X-rays and gamma rays, and afterwards it will percolate to visible and infrared light," said Arav. Anyone witnessing this event would see a brilliant celestial display. Radiation pushes the gas and dust to far greater distances than scientists previously thought, creating a galaxy-wide event.Īs this cosmic tsunami slams into interstellar material, the temperature at the shock front spikes to billions of degrees, where material glows largely in X-rays, but also widely across the light spectrum. Material that otherwise would have formed new stars is violently swept from the galaxy, causing star birth to cease. The quasar winds snowplow across the galaxy's disk. The amount of mechanical energy that these outflows carry is up to several hundreds of times higher than the luminosity of the entire Milky Way galaxy." "The winds are pushing hundreds of solar masses of material each year. Over the lifetime of 10 million years, these outflows produce a million times more energy than a gamma-ray burst," explained principal investigator Nahum Arav of Virginia Tech in Blacksburg, Virginia. "No other phenomena carries more mechanical energy. These outflows accelerate to breathtaking velocities that are a few percent of the speed of light. Winds, driven by blistering radiation pressure from the vicinity of the black hole, push material away from the galaxy's center. Quasars contain supermassive black holes fueled by infalling matter that can shine 1,000 times brighter than their host galaxies of hundreds of billions of stars.Īs the black hole devours matter, hot gas encircles it and emits intense radiation, creating the quasar. Quasars are extremely remote celestial objects, emitting exceptionally large amounts of energy. They emanate from quasars and tear across interstellar space like tsunamis, wreaking havoc on the galaxies in which the quasars live. Using the unique capabilities of NASA's Hubble Space Telescope, a team of astronomers has discovered the most energetic outflows ever witnessed in the universe.
![quasar galaxy quasar galaxy](https://i.pinimg.com/originals/e8/c6/0d/e8c60de0ae7285371c75fd8749a16020.png)
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