en

active galactic nucleus

1

Terminological databases

Kosmoseteaduse ja -tehnoloogia terminibaas

ID 576108 Last modified 11.12.2025
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Domain astronomyastrophysics
  • kompaktne piirkond galaktika keskmes, mis on vähemalt ühes elektromagnetkiirguse lainepikkuste vahemikus tunduvalt heledam kui tavalistes galaktikates
  • compact region at the centre of a galaxy that has a much higher than normal luminosity over at least some portion – and possibly all – of the electromagnetic spectrum, with characteristics indicating that the excess luminosity is not produced by stars
Related
aktiivne galaktikatuum
Usage examples
  • Kuna kvasar on aktiivne galaktikatuum, mille keskmes on ülimassiivne must auk, tõestas see avastus, et mustad augud ei ole pelgalt mingid eksootilised ennustused Einsteini relatiivsusteoorias, vaid nähtused, mis on tõesti olemas.
Good to know
  • Sõltuvalt kontekstist võib kirjutada galaktikatuum (kokku) või galaktika tuum (lahku).
active galactic nucleus
Usage examples
  • Although theoretical models of SMBH formation have relied on comparisons with the optical quasar luminosity function, optically accessible broad-line active galactic nuclei (AGNs) form only about 30% (Barger et al. 2003b) of the X-ray background (XRB).

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