1. The Long, Bright Extended X-ray Jet of OJ287 Alan Marscher & Svetlana Jorstad Boston University Research Web Page: www.bu.edu/blazars

2. Chandra Image of OJ287 (50 ks exposure)

3. Comparison of X-ray (Chandra) and Radio (VLA) Jet X-ray emission follows radio but extends beyond lowest VLA contour Readout streak 1  = 4.52 kpc Length of X-ray jet ~ 81 kpc in projection (before confusion with readout streak) Color: 0.2-6 keV Contours: 1.4 GHz

4. Compact (VLBA) vs. Extended Jet Kpc-scale jet consistent with continuation of pc-scale jet pc scales: superluminal motion as high as 18c (Jorstad et al. 2005)  = 16.5±4.0, viewing angle = 3.2º±0.9º,  = 19±6  Deprojected length of X-ray jet = 1.5±0.5 Mpc Radio/X-ray spectral index ~ 0.7 (we will have opt/ & IR fluxes) VLBA

5. Luminosity of OJ287 Jet OJ287: length of X-ray jet > 1 Mpc L < 2x10 24 watts/Hz at 1.4 GHz for region at end of jet (upper limit: no beaming)*  Upper range of FR 1 luminosity Extended (apparent) X-ray luminosity: 3x10 42 erg/s * If there is a slower spine that decelerates with distance in OJ287, its 1.4 GHz luminosity is less than ~ 10 24 watts/Hz

6. 2007+777 (z=0.342) (Sambruna et al. 2008) - similar, but not as high  PKS 0521-365 (z=0.0554) (Birkinshaw et al. 2002) - short jet 3C 371 (z=0.051) & PKS 2201+041 (z=0.027) (Sambruna et al. 2007) - few arcsecs long, resolved transverse to axis: Comparison with Extended Jets of other BL Lac Objects Contours: radio (VLA) Color: X-ray (Chandra) 3C 371 2201+041

7. Long, Fast FR 1 Jets Long (> 1 Mpc) jets with high  : high-  tail of population  Rare in more local FR 1 radio galaxies  Higher  jets have smaller opening angles (Jorstad et al. 2005) High   low entrainment, greater penetration into IGM without deceleration ***independent of whether FR 1 or FR 2 luminosity***