quasar

/kwey-zahr, -zer, -sahr, -ser/US // ˈkweɪ zɑr, -zər, -sɑr, -sər //UK // (ˈkweɪzɑː, -sɑː) //

类星体,类比星体,类人猿,准星

Definitions

n.名词 noun

1
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.

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.