SUMMARY OF SEQUENCE NUMBER 700153
SUMMARY OF SEQUENCE NUMBER 700153
Title: DO BL LAC OBJECTS WEAR X-RAY HALOS?
Observer: Laurent-Muehleisen
Subject Category: Active Galaxies and Quasars
Seq: 700153 ObsId: 00848
Long-term Plan bin: 9-Mar-2000
ABSTRACT
We propose to measure the fraction of X-ray flux in resolved vs. unresolved components for three representative BL Lacs: an LBL, an HBL and an intermediate object. These measurements will be used to test the assumptions of the two leading unified scheme models. If LBLs and HBLs differ by orientation, then the relativistic jets must be accelerating and the X-ray Doppler factors will be smaller than the radio Doppler factors for a given object. If the SED-based unified scheme is instead correct, then the X-ray and radio Doppler factors for a given object should be the same. In addition, we will obtain direct measurements of the diffuse X-ray luminosity which we will compare with exisiting measurements for FRI radio galaxies and evaluate the assumptions of the BL Lac/FRI unified scheme.
TARGET SUMMARY
| TARGET NAME |
RA | DEC |
TIME |
SI |
GRAT |
TYPE |
TC |
ROLL |
PRE |
PHASE |
MULTI |
PRI |
| 1031+508 |
157.827083 | 50.893278 |
5.000000 |
HRC-I |
NONE |
GO |
no |
no |
no |
no |
no |
5 |
IMAGES
(NOTE: RASS images currently only available for targets LTS scheduled on or after Apr-09-2000)
PARAMETERS
Obscat Parameters
