
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
Impact of internal-delensing biases on searches for primordial 𝖡-modes of CMB polarisation
(2021)
Limitations of CMB B-mode template delensing
– Physical Review D: Particles, Fields, Gravitation and Cosmology
(2021)
103,
023518
(DOI: 10.1103/physrevd.103.023518)
Revised estimates of CMB $B$-mode polarization induced by patchy
reionization
– JCAP01(2021)003
(2021)
2021,
003
Fast computation of angular power spectra and covariances of high-resolution cosmic microwave background maps using the Toeplitz approximation
– Physical Review D
(2020)
102,
123538
(DOI: 10.1103/physrevd.102.123538)
Understanding parameter differences between analyses employing nested data subsets
– Monthly Notices of the Royal Astronomical Society
(2020)
499,
3410
(DOI: 10.1093/mnras/staa2996)
Understanding parameter differences between analyses employing nested data subsets
(2020)
(DOI: 10.1093/mnras/staa2996)
Planck 2018 results: V. CMB power spectra and likelihoods
– Astronomy & Astrophysics
(2020)
641,
A5
(DOI: 10.1051/0004-6361/201936386)
Planck 2018 results
– Astronomy & Astrophysics
(2020)
641,
A8
(DOI: 10.1051/0004-6361/201833886)
Planck 2015 results XVI. Isotropy and statistics of the CMB
– Astronomy & Astrophysics
(2020)
594,
a7
(DOI: 10.1051/0004-6361/201526681)
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