PKS 1127-145
X-ray of PKS 1127-145
PKS 1127-145 is a quasar that is approximately 10 billion light years from Earth . In 2001, with the help of the Chandra space telescope, a jet was found in the X-ray spectrum that is about 1 million light years long and has a redshift of z = 1.187. The emitted x-rays indicate a collision of micro photons and high-energy particles. That the jet is so large indicates a supermassive black hole in the center of the quasar. In addition, the X-rays were examined for absorption with the help of a galaxy 4 billion light years away. It turns out that the galaxy has only about 20% of the oxygen observed in the Milky Way .
Web links
- X-rayed: Astronomers X-ray distant galaxy in Spiegel Online
- X-Ray Emission from the Quasar PKS 1127-145: Comptonized Infrared Photons on Parsec Scales from the Astrophysical Journal by Aneta Siemiginowska, Jill Bechtold, Thomas L. Aldcroft, Martin Elvis, DE Harris and Adam Dobrzycki
- Chandra Detection of X-Ray Absorption Associated with a Damped Lyα System from the Astrophysical Journal by Jill Bechtold, Aneta Siemiginowska, Thomas L. Aldcroft, Martin Elvis and Adam Dobrzycki
- THE 300 KPC LONG X-RAY JET IN PKS 1127-145, Z = 1.18 QUASAR: CONSTRAINING X-RAY EMISSION MODELS. (PDF; 612 kB) by Aneta Siemiginowska, Lukasz Stawarz, CC Cheung, DE Harris, Marek Sikora, Thomas L. Aldcroft, Jill Bechtold
Individual evidence
- Jump up ↑ Aneta Siemiginowska, Jill Bechtold, Thomas L. Aldcroft, Martin Elvis, DE Harris and Adam Dobrzycki: Chandra Discovery of a 300 Kiloparsec X-Ray Jet in the Gigahertz-peaked Spectrum Quasar PKS 1127-145. March 10, 2002, accessed May 7, 2013 .
- ↑ Chandra Scores A Double Bonus With A Distant Quasar. February 6, 2002, accessed May 7, 2013 .