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Table 3

Properties of the median BL Lacs SED.

Selection N log L5 GHz log L1 keV log νpeak

Fossati et al. (1998)

log Lr = 43–44 17 43.44 44.65 14.4
log Lr = 42–43 10 42.20 43.84 14.9
log Lr< 42 38 40.97 44.54 16.2

This work

all 34 40.91 42.94 15.3
log Lr> 40.9 17 41.30 43.44 15.7
log Lr< 40.9 17 40.61 42.84 15.5

LBL 7 40.67 42.64 14.6
HBL 19 40.38 43.31 15.8
EHBL 4 40.14 44.48 19.4

Notes.Column description: (1) Group description, (2) number of objects in the radio band, (3) and (4) median radio and X-rays luminosities, (4) synchrotron peak frequency.

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