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Seyfert galaxy

Line breaks: Sey|fert gal¦axy
Pronunciation: /ˈseɪfəːt
 
/

Definition of Seyfert galaxy in English:

noun

Astronomy
A galaxy of a type characterized by a bright compact core that shows strong infrared emission.
Example sentences
  • Examples of groups consisting of a bright galaxy plus Seyfert galaxies and quasars in lines suggest a hierarchy of paired ejections; some of these are particularly impressive and are analysed to yield ejection velocities.
  • The lines tend to be broader, indicating more rapid motions, if Seyfert galaxies are viewed nearly face-on.
  • Another impressive observation is that many of these close associations occur along lines, sometimes on either side of a special galaxy, such as a Seyfert galaxy.

Origin

named after Carl K. Seyfert (1911–60), American astronomer.

Definition of Seyfert galaxy in:

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