University of Waterloo
200 University Avenue West
Waterloo, Ontario, Canada N2L 3G1
Phone: (519) 888-4567 ext 32215
Fax: (519) 746-8115
Broadly speaking, Professor Hudson's research is in observational and theoretical cosmology, particularly Galaxy Formation, and measuring the properties of dark matter and dark energy through Gravitational Lensing, Cosmic Flows and Large-scale Structure.
The image shows galaxies in the Hubble Deep Field, a very deep exposure of distant galaxies obtained by the Hubble Space Telescope. The overlay in the lower left hand corner represents the distortion of background images due to gravitational lensing expected from the dark matter "haloes" of the foreground galaxies, indicated by red ellipses. The blue polarization "sticks" indicate the distortion. Dr. Hudson is currently working on the CFHTLenS Survey.
Cosmic Flows are deviations from the uniform Hubble expansion of the Universe. They are the only probe of the large-scale distribution of dark matter in the nearby Universe. Hudson is currently working on two major observational projects
Galaxies are the building blocks of the Universe ... why? How do they form, and how do they evolve? Why are there fundamentally two different types of galaxy: elliptical "bulges" and spiral discs?
Hudson's primary interest is focussed on galaxy bulges, the dominant component of elliptical and lenticular galaxies, that contain half of the stars in the Universe. His team's studies on spectra of these bulges has revealed that more massive bulges are older than less massive bulges. Projects:
Alex Conley, J Guy, M Sullivan, N Regnault, P Astier, C Balland, S Basa, RG Carlberg, D Fouchez, D Hardin, IM Hook, DA Howell, R Pain, N Palanque-Delabrouille, KM Perrett, CJ Pritchet, J Rich, V Ruhlmann-Kleider, D Balam, S Baumont, RS Ellis, S Fabbro, HK Fakhouri, N Fourmanoit, S González-Gaitán, ML Graham, MJ Hudson, E Hsiao, T Kronborg, C Lidman, AM Mourao, JD Neill, S Perlmutter, P Ripoche, N Suzuki, ES Walker.
"Supernova constraints and systematic uncertainties from the first three years of the supernova legacy survey".
The Astrophysical Journal Supplement Series 192 (1), 1
Liping Fu, E Semboloni, H Hoekstra, M Kilbinger, L Van Waerbeke, I Tereno, Y Mellier, C Heymans, J Coupon, K Benabed, J Benjamin, E Bertin, O Doré, MJ Hudson, O Ilbert, R Maoli, C Marmo, HJ McCracken, B Ménard.
"Very weak lensing in the CFHTLS wide: cosmology from cosmic shear in the linear regime".
Astronomy and Astrophysics 479 (1), 9-25
Mark Sullivan, J Guy, A Conley, N Regnault, P Astier, C Balland, S Basa, RG Carlberg, D Fouchez, D Hardin, IM Hook, DA Howell, R Pain, N Palanque-Delabrouille, KM Perrett, CJ Pritchet, J Rich, V Ruhlmann-Kleider, D Balam, S Baumont, RS Ellis, S Fabbro, HK Fakhouri, N Fourmanoit, S Gonzalez-Gaitan, ML Graham, MJ Hudson, E Hsiao, T Kronborg, C Lidman, AM Mourao, JD Neill, S Perlmutter, P Ripoche, N Suzuki, ES Walker.
"SNLS3: constraints on dark energy combining the supernova legacy survey three-year data with other probes".
The Astrophysical Journal 737 (2), 102
Please see Google Scholar for a complete list of Professor Hudson's publications.
The following news stories have featured Professor Hudson's research:
1992 PhD Physics, University of Cambridge, Cambridge, United Kingdom
1987 BSc Physics, McGill University, Montréal, Québec, Canada