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Faculty of Mathematics

 

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 list on ADS

 

Publications

Planck 2018 results
N Aghanim, Y Akrami, M Ashdown, J Aumont, C Baccigalupi, M Ballardini, AJ Banday, RB Barreiro, N Bartolo, S Basak, R Battye, K Benabed, JP Bernard, M Bersanelli, P Bielewicz, JJ Bock, JR Bond, J Borrill, FR Bouchet, F Boulanger, M Bucher, C Burigana, RC Butler, E Calabrese, JF Cardoso et al.
– Astronomy and Astrophysics
(2021)
652,
C4
Impact of internal-delensing biases on searches for primordial 𝖡-modes of CMB polarisation
AB Lizancos, A Challinor, J Carron
(2021)
Limitations of CMB B-mode template delensing
AB Lizancos, A Challinor, J Carron
– Physical Review D: Particles, Fields, Gravitation and Cosmology
(2021)
103,
023518
Revised estimates of CMB $B$-mode polarization induced by patchy reionization
A Roy, G Kulkarni, PD Meerburg, A Challinor, C Baccigalupi, A Lapi, MG Haehnelt
– 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
T Louis, S Naess, X Garrido, A Challinor
– Physical Review D
(2020)
102,
123538
Understanding parameter differences between analyses employing nested data subsets
S Gratton, A Challinor
– Monthly Notices of the Royal Astronomical Society
(2020)
499,
3410
Understanding parameter differences between analyses employing nested data subsets
S Gratton, A Challinor
(2020)
Planck 2018 results
N Aghanim, Y Akrami, M Ashdown, J Aumont, C Baccigalupi, M Ballardini, AJ Banday, RB Barreiro, N Bartolo, S Basak, K Benabed, JP Bernard, M Bersanelli, P Bielewicz, JJ Bock, JR Bond, J Borrill, FR Bouchet, F Boulanger, M Bucher, C Burigana, RC Butler, E Calabrese, JF Cardoso, J Carron et al.
– Astronomy & Astrophysics
(2020)
641,
A5
Planck2018 results
N Aghanim, Y Akrami, M Ashdown, J Aumont, C Baccigalupi, M Ballardini, AJ Banday, RB Barreiro, N Bartolo, S Basak, K Benabed, JP Bernard, M Bersanelli, P Bielewicz, JJ Bock, JR Bond, J Borrill, FR Bouchet, F Boulanger, M Bucher, C Burigana, E Calabrese, JF Cardoso, J Carron, A Challinor et al.
– Astronomy and Astrophysics
(2020)
641,
A8
Planck2018 results
Y Akrami, M Ashdown, J Aumont, C Baccigalupi, M Ballardini, AJ Banday, RB Barreiro, N Bartolo, S Basak, K Benabed, M Bersanelli, P Bielewicz, JJ Bock, JR Bond, J Borrill, FR Bouchet, F Boulanger, M Bucher, C Burigana, RC Butler, E Calabrese, JF Cardoso, B Casaponsa, HC Chiang, LPL Colombo et al.
– Astronomy and Astrophysics
(2020)
641,
A7
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Research Group

Relativity and Gravitation

Room

B2.08

Telephone

01223 764341