Multiwavelength observations of the blazar BL Lacertae in June 2015

Understand

BL Lacertae is a blazar at the redshift of z = 0.069, eponym of the BL Lac blazar type.

• It is also a prototype of the low-frequency-peaked BL Lac (LBL) subclass.
• It was first detected in sub-TeV gamma-ray range by MAGIC in 2005.
• In 2015, MAGIC observations of BL Lacertae were triggered by the Fermi-LAT analysis report in the MAGIC group, and were performed during 10 individual nights between 15th and 28th June for a total of 8.6 h.