- Quasar - Wikipedia
The radiant energy of quasars is enormous; the most powerful quasars have luminosities thousands of times greater than that of a galaxy such as the Milky Way [2][3] Quasars are usually categorized as a subclass of the more general category of AGN
- Hubble Quasars - NASA Science
They are distant galaxies whose incredibly bright cores are powered by supermassive black holes Quasars have been found with luminosities between 10 to 100,000 times that of our Milky Way galaxy, generated from an area just a few light-days to a few light-years across
- Quasars — Everything you need to know about the brightest objects in . . .
Quasars are the remarkably bright cores of active galaxies in the distant universe, they are an extreme form of what astronomers call "active galactic nuclei", or AGN for short An active galaxy
- Quasar | Discovery, Structure Evolution | Britannica
The most distant, and thus earliest, quasars known were formed less than a billion years after the big bang Individual quasars appear as their central black holes begin to accrete gas at a high rate, possibly triggered by a merger with another galaxy, building up the mass of the central black hole
- Quasar – Definition, Formation, Facts in Astronomy
Learn what a quasar is in astronomy, how it forms, types of quasars, and what they tell us about the early universe
- What is Quasar? - ABOUT SCIENCE
In the vast expanse of our universe, certain objects shine with such tremendous energy that they outshine entire galaxies These extraordinary cosmic beacons are known as quasars
- Quasar - ESA Hubble
Quasars are a subclass of active galactic nuclei (AGNs), extremely luminous galactic cores where gas and dust falling into a supermassive black hole emit electromagnetic radiation across the entire electromagnetic spectrum
- Quasars – Definition Detailed Explanation - Sentinel Mission
Quasars, short for quasi-stellar radio sources, are extremely bright and distant celestial objects that emit massive amounts of energy They are considered to be the most luminous objects in the universe, outshining entire galaxies by billions of times
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