Name of the Speaker(s): Travis A. Rector
Institution: Center for Astrophysics and Space Astronomy
CU Campus Box 389,
University of Colorado
Boulder, CO 80309-0389
Title of the communication:
Multiwavelength Studies of Radio-Selected
BL Lacertae Objects
Preliminary abstract (12 lines max.):
Due to their rarity, there are only two statistically-complete samples of BL Lacs:
the 1 Jy radio-selected sample (RBLs) and the EMSS X-ray-selected sample (XBLs).
The "beaming hypothesis" suggests that RBLs are highly-beamed Fanaroff-Riley
class I radio galaxies, while XBLs are viewed further from the jet axis. However,
several differences exist between the two samples which are not easily explained
by the beaming hypothesis; and alternate theories have been proposed (e.g. the
"high-energy cutoff" model). XBLs have been studied in detail; however, RBLs are
not as yet well studied. I will present results from radio and optical
observations, part of a multiwavelength study which will define the properties
of the RBL sample and will allow testing of the beaming hypothesis and alternate
theories. If these results are consistent with the beaming hypothesis, limits will
also be placed upon physical and beaming parameters of jets within BL Lacs.