| |
 |
| Paper: |
Chandra Observations of Three SDSS Quasars at z≈6 |
| Volume: |
290, Active Galactic Nuclei: from Central Engine to Host Galaxy |
| Page: |
619 |
| Authors: |
Schwartz, D. A.; Cheung, C. C.; Wardle, J. F. C. |
| Abstract: |
Chandra snapshot observations of the three most distant quasars then known, at redshifts 5.82, 5.99, and 6.28, gave signficant detections even in the short, 6 -- 8 Ks, observations. Their X-ray to optical luminosity ratios indicate that quasars will easily be detectable in X-rays if they exist at even larger redshifts. The present observations hint at two exciting discoveries. An extended X-ray source 23 arcsec from SDSS1306+0356 is most likely a jet, emitting inverse Compton radiation from the Cosmic Microwave Background. SDSS 1030+0524 does not appear to be a point source, and may be a gravitationally lensed system. |
|
|
|
|
|
