Figure 1: Sequence of Very Long Baseline Array images of BL Lac at a wavelength of 7 mm (and a frequency of 43 GHz). Figure 2: Flux density at various wavebands and optical polarization of BL ...

This catalog included an object that was called BL Lacertae, or BL Lac for short, after the constellation it was in — Lacerta, the lizard. By the late 1960s and 1970s, astronomers began to notice ...

BL Lacertae (BL Lac for short) is one of the first blazars ever discovered, originally thought to be a variable star in the Lacerta constellation. IXPE observed BL Lac at the end of November 2023 ...

BL Lacertae (BL Lac). Mike Joner, BYU research professor of physics and astronomy, was one of the astronomers contributing to the project. Dr. Joner and BYU undergraduate student Gilvan Apolonio ...

This catalog included an object that was called BL Lacertae, or BL Lac for short, after the constellation it was in — Lacerta, the lizard. By the late 1960s and 1970s, astronomers began to ...

An artist’s image of a BL Lac jet with a spiral magnetic field and a kink marked by the red arrow. Image Courtesy of Iris Nieh. BENGALURU: Scientists have spotted surprising rapid oscillations ...

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[nicely unpacked] That's an issue. This galaxy contains a BL Lacertae (BL Lac) blazar, which is thought to be what younger Flat-Spectrum Radio-Quasars (FSRQs) gradually develop into as they age.

That stored energy allowed the blazars to continue shooting out their particle jets and high-energy emissions as BL Lac objects, even without large accretion disks. This hybrid blazar idea implies ...

119, No. 855 (May 2007), pp. 477-482 (6 pages) ABSTRACT Many quasi‐simultaneous optical observations of four BL Lac objects were obtained at the Yunnan and Shanghai Observatories. In this paper, data ...

Some observations show that TXS 0506+056 is a BL Lac object from the spectral classification point of view, while the other studies suggest that this blazar is only masquerading as a BL Lac with ...