SUMMARY OF PROPOSAL 81709
ISAS
3-3-1 YOSHINODAI
SAGAMIHARA
KANAGAWA JAPAN 229-8510
Tel: 81-42-759-8150 Fax: 81-42-759-4253
Medium: CD ROM
Subject: AGN
STUDY OF RAPID VARIABILITIES FROM HIGH FREQUENCY PEAKED BL LAC OBJECTS -- ACCELERATION IN JETS
ABSTRACT
High Frequency Peaked BL Lac objects emit X-ray synchrotron radiation. The required high energies of the radiating electrons indicate very efficient particle acceleration in the relativistic jets of these sources. Long term and uninterrupted monitoring is the only approach for quantitative investigation of the extreme physical conditions in those regions in the jet where the high-energy radiation is emitted. We propose to observe five bright objects, in which X-rays are due to Synchrotron emission by the high energy end of the electron distribution.
CO-INVESTIGATORS
| CO-I NAME | INSTITUTE | COUNTRY |
|---|
| GREG MADEJSKI | NASA/GSFC | USA |
| MEG URRY | STSCI | USA |
| JOHN MATTOX | BOSTON UNIV. | USA |
| RITA SAMBRUNA | PEN STATE UNIV. | USA |
| BOB HARTMAN | NASA/GSFC | USA |
| LAURA MARASCHI | OSSERVATORIO ASTRON | ITALY |
| GABRIELE GHISELLINI | OSSERVATORIO ASTRON | ITALY |
| STEFAN WAGNER | LANDESSTERNWARTE | GERMANY |
| FELIX AHARONIAN | MPI | GERMANY |
| HARRI TERASRANTA | METSAHOVI | FINLAND |
TARGETS
| TARGET NAME | PRI | RA | DEC | TIME | TC | OFF | GIS | SIS CNT | OBS |
|---|
| 1)MKN501 | A | 253.4675 | 39.7603 | 400 ks | N | Y | P | 2.70000 | 1 |
| 2)PKS2155-304 | A | 329.7167 | -30.2256 | 400 ks | N | Y | P | 6.00000 | 1 |
| 3)H1426+428 | A | 217.1358 | 42.6725 | 300 ks | N | Y | P | 0.70000 | 1 |