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Table 1

Selected sources for the northern hemisphere (declination δ > 0°) with average fluxes F2 - years > 10-10 erg/cm2 s in the 2-year Fermi catalogue (Nolan et al. 2012).

Name Type z F IC   40 - period F 2 - years

3C 66A BL Lac 0.444∗ 17.7 25.8
AO 0235+164 BL Lac 0.94 24.3 16.5
Mrk 421 BL Lac 0.030 30.1 30.8
3C 273 FSRQ 0.158 21.2 11.2
PKS 1502+106 FSRQ 1.839 39.8 30.9
B2 1520+31 FSRQ 1.487 16.1 13.3
PG 1553+113 BL Lac 19.8 17.2
BZB J2001+4352 BL Lac 11.3 10.0
3C 454.3 FSRQ 0.859 49.2 86.3

Notes.FIC40−period is the average flux over the IC-40 period. Both fluxes are in 10-11 erg/cm2 s units. ∗ From SIMBAD database. The source redshift is uncertain, see Aleksic et al. (2011a).

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