Matthew R. George

A Hubble and Spitzer space telescope survey for gravitationally lensed galaxies: further evidence for a significant population of low-luminosity galaxies beyond z=7 (2008)

Richard, Johan, Stark, Daniel P., Ellis, Richard S., George, Matthew R., Egami, Eiichi, Kneib, Jean-Paul, ...

We present the results of a systematic search for gravitationally lensed continuum Lyman break "dropouts" beyond a redshift 7 conducted via very deep imaging through six foreground clusters...

A Subaru Pencil-beam Search for m_R~27 Trans-neptunian bodies (2008)

Fuentes, Cesar I., George, Matthew R., Holman, Matthew J.

We present the results of an archival search for Trans-neptunian objects (TNOs) in an ecliptic field observed with Subaru in 2002. The depth of the search allowed us to find 20 new TNOs with...

X-ray observations of the galaxy cluster PKS 0745-191: To the virial radius, and beyond (2008)

George, Matthew R., Fabian, Andrew C., Sanders, Jeremy S., Young, Andrew J., Russell, Helen R.

We measure X-ray emission from the outskirts of the cluster of galaxies PKS 0745-191 with Suzaku, determining radial profiles of density, temperature, entropy, gas fraction, and mass. These...

On Active Galactic Nuclei as Sources of Ultra-High Energy Cosmic Rays (2008)

George, Matthew R., Fabian, Andrew C., Baumgartner, Wayne H., Mushotzky, Richard F., Tueller, Jack

We measure the correlation between sky coordinates of the Swift BAT catalogue of active galactic nuclei with the arrival directions of the highest energy cosmic rays detected by the Auger...

A Hubble & Spitzer Space Telescope Survey for Gravitationally-Lensed Galaxies: Further Evidence for a Significant Population of Low Luminosity Galaxies beyond Redshift Seven (2008)

Richard, Johan, Stark, Daniel P., Ellis, Richard S., George, Matthew R., Egami, Eiichi, Kneib, Jean-Paul, ...

We present the results of a systematic search for gravitationally-lensed continuum Lyman break `drop-outs' beyond a redshift 7 conducted via very deep imaging through six foreground clusters...

Towards More Precise Survey Photometry for PanSTARRS and LSST: Measuring Directly the Optical Transmission Spectrum of the Atmosphere (2007)

Stubbs, Christopher W., High, F. William, George, Matthew R., DeRose, Kimberly L., Blondin, Stephane, Tonry, John L., ...

Motivated by the recognition that variation in the optical transmission of the atmosphere is probably the main limitation to the precision of ground-based CCD measurements of celestial fluxes, we...