Career
-
2017-present Professor of Cosmology and Astrophysics
- Deputy Director, Institute of Astromony
- Deputy Director, Kavli Institute for Cosmology, Cambridge
- 2011-2017 Reader in Astrophysics and Cosmology
- 2006 -2011 University Lecturer, Institute of Astronomy and DAMTP
- 2002 -2007 Royal Society University Research Fellow
- 2000 -2002 PPARC Postdoctoral Research Fellow
- 1998 -present Fellow, Queens' College
Research
I have a range of research interests in physical and theoretical cosmology, mostly centred on the issue of testing the cosmological model and the origin of cosmic structure with cosmological observations. A particular focus is the the origin, interpretation, and measurement of temperature anisotropies and polarization in the CMB. I am a Core Team member of the Planck High-Frequency Instrument and a member of the Simons Observatory with particular interests in lensing of the CMB, constraining the key cosmological parameters and searching for B-mode polarization induced by gravitational waves from the early universe.
Selected Publications
Publications
Microwave background polarization in cosmological models - art. no. 043004
– Physical Review D
(2000)
62,
043004
(doi: 10.1103/physrevd.62.043004)
Thermal and kinematic corrections to the microwave background polarization induced by galaxy clusters along the line of sight
– Monthly Notices of the Royal Astronomical Society
(2000)
312,
159
Microwave background anisotropies from gravitational waves: the 1 + 3 covariant approach
– Classical and Quantum Gravity
(2000)
17,
871
(doi: 10.1088/0264-9381/17/4/309)
The covariant perturbative approach to cosmic microwave background anisotropies
– General Relativity and Gravitation
(1999)
32,
1059
(doi: 10.1023/A:1001921711071)
Cosmic microwave background anisotropies in the cold dark matter model: A covariant and gauge-invariant approach
– The Astrophysical Journal
(1999)
513,
1
(doi: 10.1086/306841)
Microwave background anisotropies and non-linear structures — I. Improved theoretical models
– Monthly Notices of the Royal Astronomical Society
(1999)
302,
748
Comptonization of an isotropic distribution in moving media: higher order effects
– Astrophysical Journal
(1999)
510,
930
(doi: 10.1086/306627)
Covariant and gauge-invariant analysis of cosmic microwave background anisotropies from scalar perturbations
– PHYSICAL REVIEW D
(1998)
58,
023001
(doi: 10.1103/PhysRevD.58.023001)
Effects of spin-torsion in gauge theory gravity
– Journal of Mathematical Physics
(1998)
39,
3303
(doi: 10.1063/1.532255)
Relativistic corrections to the Sunyaev-Zeldovich effect
– The Astrophysical Journal
(1998)
499,
1
(doi: 10.1086/305623)
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