X-ray selected BL Lac object Comparison Table

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physical object > natural object > celestial body > collection of stars > galaxy > active galaxy > blazar > BL Lacertae > X-ray selected BL Lac object

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X-ray selected BL Lac object comparison table

Subject is a kind of has acronym has definition

BL Lacertae blazar A member of a class of astronomical objects with the following characteristics: (1) rapid variations in intensity at radio, infrared, and optical wavelengths; (2) energy distributions such that most of the energy is emitted at infrared wavelengths; (3) absence of discrete features in low-dispersion spectra; and (4) strong and rapidly varying polarization at visual and radio wavelengths.

X-ray selected BL Lac object BL Lacertae SBL

Subject	is a kind of	has acronym	has definition
BL Lacertae	blazar		A member of a class of astronomical objects with the following characteristics: (1) rapid variations in intensity at radio, infrared, and optical wavelengths; (2) energy distributions such that most of the energy is emitted at infrared wavelengths; (3) absence of discrete features in low-dispersion spectra; and (4) strong and rapidly varying polarization at visual and radio wavelengths.
X-ray selected BL Lac object	BL Lacertae	SBL

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