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Cosmic chameleon: Complex behavior of BL Lacertae blazar escapes established classification
the BL Lacertae object is classified as HBL (High-frequency peaked BL Lac), if towards the low-energy side—as LBL (Low-frequency peaked BL Lac), while objects with an intermediate shift are ...
EurekAlert!3y
Example of the completely featureless optical spectrum of the BL Lac known as J065046.49+250259.6 (IMAGE)
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