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Iron Emission in z ~ 6 QSOs and its Possible Implications
Michael R. Corbin, Wolfram Freudling, Kirk. T. Korista
We have obtained low-resolution near-infrared spectra of five SDSS QSOs at 5.3 < z < 6.3 using the NICMOS instrument of the Hubble Space Telescope. We find evidence of emission in…
Hot Dust in Radio-Loud Active Galactic Nuclei
Wolfram Freudling, Ralf Siebenmorgen
We have measured mid-infrared (MIR) fluxes of 3C sources on images taken with ISOCAM onboard the Infrared Space Observatory (ISO). The photometric data were combined with existing…
Cosmic Shear from STIS pure parallels: III. Analysis of Cycle 9 pure parallels
J. -M. Miralles, T. Erben, H. Haemmerle +4
Following the detection of a cosmic shear signal at the 30'' scale using archival parallel data from the STIS CCD camera onboard HST in Haemmerle et al. (2002), we analyzed a large…
A weak lensing analysis of a STIS dark-lens candidate
T. Erben, J. M. Miralles, D. Clowe +6
We perform a weak lensing analysis on a previously reported dark-lens candidate on STIS Parallel data (Miralles et al. 2002). New VLT-data indicate that the reported signal origina…
Iron Emission in z~6 QSOs
Wolfram Freudling, Michael R. Corbin, Kirk T. Korista
We have obtained low-resolution near infrared spectra of three QSOs at 5.7 < z < 6.3 using the NICMOS instrument of the Hubble Space Telescope. The spectra cover the rest-frame ult…