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4 papers · 2 filters
X-ray Point Sources and Radio Galaxies in Clusters of Galaxies
Quyen N. Hart, John T. Stocke, Eric J. Hallman
Using Chandra imaging spectroscopy and VLA L-band maps, we have identified radio galaxies at P(1.4 GHz) >= 3x10^{23} W Hz^{-1} and X-ray point sources (XPSs) at L(0.3-8 keV) >= 10^…
Metal-Free Gas Supply at the Edge of Reionization: Late-Epoch Population III Star Formation
Michele Trenti, Massimo Stiavelli, Michael Shull
While the average metallicity of the intergalactic medium rises above Z~10^{-3} Zsun by the end of the reionization, pockets of metal-free gas can still exist at later times. We qu…
Constraints on the High-l Power Spectrum of Millimeter-wave Anisotropies from APEX-SZ
C. L. Reichardt, O. Zahn, P. A. R. Ade +27
We present measurements of the angular power spectrum of millimeter wave anisotropies with the APEX-SZ instrument. APEX-SZ has mapped 0.8 square degrees of sky at a frequency of 15…
Multi-frequency imaging of the galaxy cluster Abell 2163 using the Sunyaev-Zel'dovich Effect
M. Nord, K. Basu, F. Pacaud +30
We used the APEX-SZ and LABOCA bolometer cameras on the APEX telescope to map the decrement of the Sunyaev-Zeldovich effect at 150 GHz and the increment at 345 GHz toward the galax…