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Galaxies in Southern Bright Star Fields I. Near-infrared imaging
Andrew J. Baker, Richard I. Davies, Matthew D. Lehnert +6
As a prerequisite for cosmological studies using adaptive optics techniques, we have begun to identify and characterize faint sources in the vicinity of bright stars at high Galact…
A 3x10^9 solar mass black hole in the quasar SDSS J1148+5251 at z=6.41
Chris J. Willott, Ross J. McLure, Matt J. Jarvis
We present near-infrared H and K-band spectra of the z=6.41 quasar SDSS J114816.64+525150.3. The spectrum reveals a broad MgII 2799 emission line with a full-width half-maximium of…
The host galaxies of flat-spectrum quasars
Matt J. Jarvis, Ross J. McLure
We present the results of deep VLT-ISAAC Ks-band imaging of four z~1.5 flat-spectrum quasars selected from the Parkes half-Jansky flat spectrum sample. We find that the hosts of th…
The Black Hole Masses of High-Redshift Quasars
R. J McLure, M. J. Jarvis
A reliable method for estimating the black-hole masses of high-redshift quasars would provide crucial new information for understanding the nature and cosmological evolution of qua…