BL Lacertae objects


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Related to BL Lacertae objects: Seyfert galaxy, Blazar, abl, quasar, ACBL

BL Lacertae objects

[¦bē¦el lə′ser·tē ‚äb·jiks]
(astronomy)
A class of extragalactic sources of extremely intense, highly variable electromagnetic radiation which are related to quasars but have a featureless optical spectrum, and display strong optical polarization and a radio spectrum that increases in intensity at shorter wavelengths.
References in periodicals archive ?
The passage of stars across the line of sight to the quasar could account for the rapid brightness changes typically associated with BL Lacertae objects.
Ringing in an estimate of a galaxy's mass
The ratio of AGNs to BL Lacertae objects differs from expectation based on X-ray observations.
Observing a partly cloudy universe
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