SUMMARY OF PROPOSAL 73016

PROFESSOR BRIAN MCBREEN
BMCBREEN@OLLAMH.UCD.IE

UNIVERSITY COLLEGE DUBLIN
STILLORGAN ROAD
DUBLIN
IRELAND 4
Tel: 353-1-7062218 Fax: 353-1-2837275
Medium: CD ROM
Subject: AGN

ASCA OBSERVATIONS OF INTERMEDIATE RGB BL LACS


ABSTRACT

The combination of X-ray observations with ROSAT and the Green Bank radio survey has increased the number of BL Lacs ('RGB' BL Lacs), but has also blurred the classification. The RGB sample spans the region of log Sx/Sr occupied by radio selected BL Lacs (RBLs) and X-ray selected BL Lacs (XBLs) and also the region in between. We propose ASCA observations of three intermediate BL Lacs to (1) determine the main emission process responsible for their X-ray spectrum (synchrotron or synchrotron with a Compton component) (2) define their broad band (radio-X-ray) spectrum from which we can estimate the spectral break frequency and (3) compare ASCA results with XBLs and RBLs. Simultaneous radio and optical monitoring will be used to search for the microlensing achromatic signature.

CO-INVESTIGATORS
CO-I NAME INSTITUTE COUNTRY
MAKOTO TASHIROUNIVERSITY OF TOKYOJAPAN
LORRAINE HANLONU.C.DIRELAND
DARACH WATSONU.C.D.IRELAND
NIALL SMITHC.I.T.IRELAND
LEO METCALFEVILSPASPAIN
HARRI TERASRANTAHUTFINLAND

TARGETS

TARGET NAMEPRIRADECTIMETCOFFGISSIS CNTOBS
1)0045+2127
B
11.3300 21.4619
40 ks
N
N
P
0.21000
1
2)0202+0849
B
30.6100 8.8200
40 ks
N
N
P
0.21000
1