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A Full Year's Chandra Exposure on SDSS Quasars from the Chandra Multiwavelength Project
Paul J. Green, T. L. Aldcroft, G. T. Richards +13
We study the spectral energy distributions and evolution of a large sample of optically selected quasars from the Sloan Digital Sky Survey (SDSS) that were observed in 323 Chandra…
Spectroscopic Confirmation Of An Extreme Starburst At Redshift 4.547
Peter Capak, C. L. Carilli, N. Lee +22
We report the spectroscopic confirmation of a sub-mm galaxy (SMG) at z=4.547 with an estimated L_IR=0.5-2.0x10^13 L_sun. The spectra, mid-IR, and X-ray properties indicate the bolo…
X-ray Properties of the GigaHertz-Peaked and Compact Steep Spectrum Sources
Aneta Siemiginowska, Stephanie LaMassa, Thomas L. Aldcroft +2
We present {\it Chandra} X-ray Observatory observations of Giga-Hertz Peaked Spectrum (GPS) and Compact Steep Spectrum (CSS) radio sources. The {\it Chandra} sample contains 13 qua…
The Case of the 300 kpc Long X-ray Jet in PKS 1127-145 at z=1.18
Aneta Siemiginowska, D. E. Harris, Thomas L. Aldcroft +4
The complex X-ray morphology of the 300 kpc long X-ray jet in PKS1127-145 (z=1.18 quasar) is clearly discerned in a ~100 ksec Chandra observation. The jet X-ray surface brightness…
The 300 kpc Long X-ray Jet in PKS 1127-145, z=1.18 Quasar: Constraining X-ray Emission Models
Aneta Siemiginowska, Lukasz Stawarz, C. C. Cheung +4
We present a ~100 ksec Chandra X-ray observation and new VLA radio data of the large scale, 300 kpc long X-ray jet in PKS1127-145, a radio loud quasar at redshift z=1.18. With this…
Evolution of the X-ray Emission of Radio-Quiet Quasars
Brandon C. Kelly, Jill Bechtold, Aneta Siemiginowska +2
We report new Chandra observations of seven optically faint, z \sim 4 radio-quiet quasars. We have combined these new observations with previous Chandra observations of radio-quiet…