Spectral energy distribution of Palomar-Green BL Lacertae objects.
Optical spectroscopy of three recently discovered BL Lacs (PG 1246+586, PG 1424+240 and PG 1437+398) in the Palomar-Green optical survey is presented. The three sources have featureless spectra and the continuum is well represented by a power law model with slopes typical of BL Lac objects. The observations together with data at other frequencies
Scarpa, R. et al.
Fecha de publicación:
11
1995