Distant quasar has jet, X-rays but no radio waves
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by Budgieye moderator
SERENDIPITOUS DISCOVERY OF AN EXTENDED X-RAY JET WITHOUT A RADIO COUNTERPART
IN A HIGH-REDSHIFT QUASAR http://arxiv.org/pdf/1509.04822v2.pdfA recent Chandra observation of the nearby galaxy cluster Abell 585
has led to the discovery of an extended X-ray jet associated with the
high-redshift background quasar B3 0727+409, a luminous radio source
at redshift z=2.5. This is one of only few examples of high-redshift
X-ray jets known to date. It has a clear extension of about 12",
corresponding to a projected length of ~100 kpc, with a possible hot
spot located 35" from the quasar. The archival high resolution VLA
maps surprisingly reveal no extended jet emission, except for one knot
about 1.4" from the quasar. The high X-ray to radio luminosity ratio
for this source appears consistent with the ∝(1+z)4 amplification
expected from the inverse Compton radiative model. This serendipitous
discovery may signal the existence of an entire population of similar
systems with bright X-ray and faint radio jets at high redshift, a
selection bias which must be accounted for when drawing any
conclusions about the redshift evolution of jet properties and indeed
about the cosmological evolution of supermassive black holes and
active galactic nuclei in general.
http://skyserver.sdss.org/dr12/en/tools/explore/Summary.aspx?id=1237673705577382031
no jet to NW in optical. I could hope for redshifted UV, couldn't I?
link to DSS
https://www.google.com/sky/#latitude=40.82863732210213&longitude=652.7129030227661&zoom=14&Spitzer=0.00&ChandraXO=0.00&Galex=0.00&IRAS=0.00&WMAP=0.00&Cassini=0.00&slide=1&mI=-1&oI=-1
outside DECalS footprint
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