BL Lacertae objects

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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.

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No references found			Gravitational lensing may explain, for example, the puzzling, quasar-like properties of so-called BL Lacertae objects sometimes found embedded in nearby galaxies. Ringing in an estimate of a galaxy's mass by Peterson, I. / Science News			bj Bjarne Stroustrup BJC4000 Bjerknes, Jacob Bjerknes, Vilhelm Frimann Koren Bjorken, James D. Bjorko Treaty Björkö Treaty Björling, Jussi Bjorn Collinder Björn Collinder Bjorneborg Bjørnøya Bjørnson, Bjørnstjerne Bjornson, Bjornstjerne Martinius Bjørnson, Bjørnstjerne Martinius Bjornsson, Sveinn Björnsson, Sveinn Bjornstjerne Martinius Bjornson Bjørnstjerne Martinius Bjørnson BJT Bk BK SH BL BL Herculis stars BL Lacertae objects Blaškovic, Dioniz Blaauw mechanism Blacher, Boris black black acids Black Aesthetic movement Black Africa black agate black alkali black amber black and gold Black and Tan Black and White Ball Black and White Cattle Black Angus cattle black annealing Black Annis Black Apple black art black ash black ash mortar black balsam black band disease black bass Black Bayou Lake National Wildlife Refuge			BKVR BKVTF Bkw BKWD BkWh BKWK BKWPL BKWSO BKWSU BKWU BKX BKY BKYC BKYD BKYF BKYP BKYSL BKYY BKZ BL BL BL BL BL Herculis stars BL Lac object BL Lac object BL Lac objects BL Lacertae object BL Lacertae objects BL&A BL&CMS BL&IS BL&ISc BL&MS BL&P BL&Sc BL&SocSc BL&T bl. bl. bl. bl. bl. Bl. Albertus Magnus Bl. Albertus Magnus bl.a Bl.uk BL/H BL/L BL/NB BL/s BL/ST BL1 BL2 BL3 BL4E BL4L BL5

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