Astronomy and Astrophysics – Astrophysics
Scientific paper
2007-06-18
Astronomy and Astrophysics
Astrophysics
MNRAS accepted; 8 pages, 4 .eps files
Scientific paper
10.1111/j.1365-2966.2007.12120.x
We present far-ultraviolet (UV) observations at 150 nm of the jet of the quasar 3C 273 obtained with the Advanced Camera for Survey's Solar Blind Channel (ACS/SBC) on board the Hubble Space Telescope. While the jet morphology is very similar to that in the optical and near-ultraviolet, the spectral energy distributions (SEDs) of the jet's sub-regions show an upturn in nu f_nu at 150 nm compared to 300 nm everywhere in the jet. Moreover, the 150 nm flux is compatible with extrapolating the X-ray power-law down to the ultra-violet region. This constitutes strong support for a common origin of the jet's far-UV and X-ray emission. It implies that even a substantial fraction of the *visible light* in the X-ray brightest parts of the jet arises from the same spectral component as the X-rays, as had been suggested earlier based on Spitzer Space Telescope observations. We argue that the identification of this UV/X-ray component opens up the possibility to establish the synchrotron origin of the X-ray emission by optical polarimetry.
Jester Sebastian
Martel Andre
Meisenheimer Klaus
Perlman Eric
Sparks Bill
No associations
LandOfFree
Hubble Space Telescope far-ultraviolet imaging of the jet in 3C273: a common emission component from optical to X-rays does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Hubble Space Telescope far-ultraviolet imaging of the jet in 3C273: a common emission component from optical to X-rays, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Hubble Space Telescope far-ultraviolet imaging of the jet in 3C273: a common emission component from optical to X-rays will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-609659