AAS 207th Meeting, 8-12 January 2006
Session 141 Blazars and AGN Variability
Poster, Wednesday, 9:20am-6:30pm, January 11, 2006, Exhibit Hall

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[141.11] Simultaneous Multiwavelength Observations of PKS 2155-304

M. A. Osterman, H. R. Miller, K. Marshall, W. T. Ryle (Georgia State U.), H. Aller, M. Aller (U. Michigan), S. Wagner (Landessternwarte Heidelberg)

The TeV blazar PKS 2155-304 was the subject of an intensive two week optical and infrared observing campaign in August 2004 at the CTIO 0.9m telescope. During this time, simultaneous X-ray data from RXTE was also obtained. Over the course of these observations, two large flares occurred at these wavelengths. In the weeks following the CTIO campaign, more flux increases were observed at X-ray, optical, and radio wavelengths. We present an analysis of the relative sizes, shapes, and time delays of the various flares in order to constrain various models for blazar physics (e.g. shock in jet, accelerating or decelerating jet) assuming a synchrotron self-Compton model for the production of X-ray and higher energy emission. MAO, HRM, KM, and WTR are supported in part by the Program for Extragalactic Astronomy's Research Program Enhancement funds from GSU.

The author(s) of this abstract have provided an email address for comments about the abstract: osterman@chara.gsu.edu

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