Astronomy and Astrophysics – Astronomy
Scientific paper
Jul 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007aas...21012102s&link_type=abstract
American Astronomical Society Meeting 210, #121.02; Bulletin of the American Astronomical Society, Vol. 39, p.328
Astronomy and Astrophysics
Astronomy
Scientific paper
We have previously noted the quasar PKS 1055+201, (= 4C20.24), as an example where we separately detect the X-ray emission from the narrow radio jet, and also from extended plasma along the entire length of the jet and counter-jet. This should allow a study of the energetics of the jet plus its interaction with its surroundings. We have just obtained a deep Chandra image, increasing our exposure by a factor of eight. We can now map the spectral index along the jet, and also spatially resolved in the extended emission region. We now see that the extended emission is quite irregular, not the uniform brightness as previously assumed. To the north, the X-rays are now detected throughout the region where the L-band emission makes two apparent right angle bends. We also will report on our 320 MHz observations which detect the southern radio lobe.
We acknowledge support of NASA contract NAS8 39073 to SAO,
CXC grants GO5-6116B, GO6-7111A, GO6-7111B, and HST grant HST-GO-10762.01-A.
Bicknell Geoff
Birkinshaw Mark
Gelbord Jonathan
Georganopoulos Markos
Godfrey L.
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