X-Rays from the Jet in 3C 273: Clues from the Radio-Optical Spectra
Abstract
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 (λ 300 nm) above a synchrotron cutoff spectrum accounting for the jet's emission from radio through optical ( λλ 3.6 cm - 620 Dm). This necessitates a two-component model for the jet emission. The radio-optical-X-ray spectral energy distributions suggest a common origin for the UV excess and the X-rays from the jet. We discuss how to constrain the emission mechanism for this high-energy component.
- Publication:
-
Lighthouses of the Universe: The Most Luminous Celestial Objects and Their Use for Cosmology
- Pub Date:
- 2002
- DOI:
- 10.1007/10856495_36
- Bibcode:
- 2002luml.conf..273J