quasar 的定义
Astronomy.
- one of over a thousand known extragalactic objects, starlike in appearance and having spectra with characteristically large redshifts, that are thought to be the most distant and most luminous objects in the universe.
更多quasar例句
- With quasar research, it was just too fast, and she wanted to be methodical about it.
- The quasar light absorbed by those atoms traces out a nearly symmetrical curve of dozens of galaxies spanning about one-fifteenth the radius of the observable universe, Lopez reported.
- Both ACT and Planck disagree with most estimates from objects that emitted their light more recently, such as exploding stars called supernovas and bright hearts of galaxies known as quasars.
- Because quasars are so far way, people need telescopes to see them.
- Most quasars that astronomers and others have found are billions of light-years away from Earth.
- The direction of polarization for a quasar is determined by the accretion disk surrounding it.