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
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
– The 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)
5802,
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)
Recent developments in the calculation of CMB anisotropies
– CURRENT TOPICS IN ASTROFUNDAMENTAL PHYSICS: PRIMORDIAL COSMOLOGY
(1997)
511,
409
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