| Issue |
A&A
Volume 385, Number 3, April III 2002
|
|
|---|---|---|
| Page(s) | L27 - L30 | |
| Section | Letters | |
| DOI | https://doi.org/10.1051/0004-6361:20020278 | |
| Published online | 15 April 2002 | |
Letter to the Editor
X-rays from the jet in 3C 273: Clues from the radio–optical spectra
1
Max-Planck-Institut für Astronomie, Königstuhl 17, 69117 Heidelberg, Germany
2
NRAO, PO Box 0, Socorro, NM 87801, USA
Corresponding author: S. Jester, jester@mpia.de
Received:
18
January
2002
Accepted:
21
February
2002
Using new deep VLA and HST observations of the large-scale
jet in 3C 273 matched to 0
3 resolution, we have detected excess
near-ultraviolet emission (
) above a synchrotron
cutoff spectrum accounting for the emission from radio through optical
(
–
). This necessitates a
two-component model for the emission. The radio–optical–X-ray
spectral energy distributions suggest a common origin for the UV
excess and the X-rays from the jet.
Key words: galaxies: jets / quasars: individual: 3C 273 / radiation mechanisms: non-thermal
© ESO, 2002
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