Revealing high-z Fermi-LAT BL Lacs using Swift and SARA data with photometric analysis
Yong Sheng, M. Rajagopal, A. Kaur, M. Ajello et autres
BL Lacertae (BL Lac) objects are a subclass of blazar, distinguished by their featureless optical spectrum. The featureless spectrum presents a challenge in measuring the redshift of the BL Lacs. In this paper, we measure the redshift of BL Lacs using the …