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.
The ratio of AGNs to BL Lacertae objects differs from expectation based on X-ray observations.