Introduction
Welcome, you have reached the research pages of Samuel George. I'm currently a postdoctoral researcher in radio astronomy at the University of Cambridge. I completed my PhD at the University of Birmingham (where I am now an honorary research fellow) studying in the field of Physics and Astronomy. My PhD was in the field of Extrasolar Planets and radio surveys. After my PhD I spent two years working on polarization observations at the University of Calgary, Canada. These pages are specifically about my research, if you would like to know more about myself or any of my random thoughts please take a look at my personal site [krioma.net] and you can [follow me on twitter].
Recent News:
Probing magnetic fields with GALFACTS: A poster given at ADASS XX1. The poster can be found here. The full proceedings can be found on arxiv.
Optical observations of Ultra Steep Spectrum radio sources: This paper was accepted for publication in Bulletin of the Astronomical Society of India and can be found on arxiv.
GALFACTS - dealing with large data volumes: Talk at [SKA CALIM 2011]. The Galactic ALFA Continuum Survey (GALFACTS) is a large-area spectro-polarimetric survey on the Arecibo Radio telescope. It uses the seven-beam focal plane feed array receiver system (ALFA) to carry out an imaging survey project of the 12,700 square degrees of sky visible from Arecibo centred at 1.4 GHz. The raw data produced by the spectrometer creates 56 digital data streams (seven beams, four polarization states and two frequency bands) each with 4096 spectral channels sampled at 1 millisecond. This produced terabyte sized data sets, the data processing pipeline raises considerable challenges. Here we discuss some of the aspects of the computation and calibration of such a dataset. PDF of talk slides .
Detection Thresholds and Bias Correction in Polarized Intensity: This paper was accepted for publication in Publications of the Astronomical Society of Australia and can be found on arxiv.
New position: I've just started a new position working on Square Kilometre Array science in the Astrophysics Group of the Cavendish Laboratory at the University of Cambridge.
Extrasolar Planets in the Classroom: This paper presents a simple laboratory experiment to show how planets are detected using the transit technique. This paper was published in Physics Education and can be found here or on arxiv
Polarized Radio Sources: A Study of Luminosity, Redshift and Infrared Colors: Our paper (lead by [Julie Banfield]) has been [published in The Astrophysical Journal]. The pre-print can be found on arxiv.
Contact me
Dr Samuel George
Astrophysics Group, Cavendish Laboratory
University of Cambridge, Cambridge, CB3 0HE, UK.
Email: sgeorge[-at-]mrao.cam.ac.uk
Office: Rutherford Building, Room 915.
