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Department of Applied Mathematics and Theoretical Physics

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

Delensing the CMB with the cosmic infrared background: the impact of foregrounds
A Baleato Lizancos, A Challinor, BD Sherwin, T Namikawa
– Monthly Notices of the Royal Astronomical Society
(2022)
514,
5786
Snowmass 2021 CMB-S4 White Paper
K Abazajian, A Abdulghafour, GE Addison, P Adshead, Z Ahmed, M Ajello, D Akerib, SW Allen, D Alonso, M Alvarez, MA Amin, M Amiri, A Anderson, B Ansarinejad, M Archipley, KS Arnold, M Ashby, H Aung, C Baccigalupi, C Baker, A Bakshi, D Bard, D Barkats, D Barron, PS Barry, JG Bartlett, P Barton, RB Thakur, N Battaglia, J Beall, R Bean, D Beck, S Belkner, K Benabed, AN Bender, BA Benson, B Besuner, M Bethermin, S Bhimani, F Bianchini, S Biquard, I Birdwell, CA Bischoff, L Bleem, P Bocaz, JJ Bock, S Bocquet, KK Boddy, JR Bond, J Borrill, FR Bouchet, T Brinckmann, ML Brown, S Bryan, V Buza, K Byrum, E Calabrese, V Calafut, R Caldwell, JE Carlstrom, J Carron, T Cecil, A Challinor, V Chan, CL Chang, S Chapman, E Charles, E Chauvin, C Cheng, G Chesmore, K Cheung, Y Chinone, J Chluba, H-MS Cho, S Choi, J Clancy, S Clark, A Cooray, G Coppi, J Corlett, W Coulton, TM Crawford, A Crites, A Cukierman, F-Y Cyr-Racine, W-M Dai, C Daley, E Dart, G Daues, TD Haan, C Deaconu, J Delabrouille, G Derylo, M Devlin, ED Valentino, M Dierickx, B Dober, R Doriese, S Duff, D Dutcher, C Dvorkin, R Dünner, T Eftekhari, J Eimer, HE Bouhargani, T Elleflot, N Emerson, J Errard, T Essinger-Hileman, G Fabbian, V Fanfani, A Fasano, C Feng, S Ferraro, JP Filippini, R Flauger, B Flaugher, AA Fraisse, J Frisch, A Frolov, N Galitzki, PA Gallardo, S Galli, K Ganga, M Gerbino, C Giannakopoulos, M Gilchriese, V Gluscevic, N Goeckner-Wald, D Goldfinger, D Green, P Grimes, D Grin, E Grohs, R Gualtieri, V Guarino, JE Gudmundsson, I Gullett, S Guns, S Habib, G Haller, M Halpern, NW Halverson, S Hanany, E Hand, K Harrington, M Hasegawa, M Hasselfield, M Hazumi, K Heitmann, S Henderson, B Hensley, R Herbst, C Hervias-Caimapo, JC Hill, R Hills, E Hivon, R Hlozek, A Ho, G Holder, M Hollister, W Holzapfel, J Hood, S Hotinli, A Hryciuk, J Hubmayr, KM Huffenberger, H Hui, RI nez, A Ibitoye, M Ikape, K Irwin, C Jacobus, O Jeong, BR Johnson, D Johnstone, WC Jones, J Joseph, B Jost, JH Kang, A Kaplan, KS Karkare, N Katayama, R Keskitalo, C King, T Kisner, M Klein, L Knox, BJ Koopman, A Kosowsky, J Kovac, ED Kovetz, A Krolewski, D Kubik, S Kuhlmann, C-L Kuo, A Kusaka, A Lähteenmäki, K Lau, CR Lawrence, AT Lee, L Legrand, M Leitner, C Leloup, A Lewis, D Li, E Linder, I Liodakis, J Liu, K Long, T Louis, M Loverde, L Lowry, C Lu, P Lubin, Y-Z Ma, T Maccarone, MS Madhavacheril, F Maldonado, A Mantz, G Marques, F Matsuda, P Mauskopf, J May, H McCarrick, K McCracken, J McMahon, PD Meerburg, J-B Melin, F Menanteau, J Meyers, M Millea, V Miranda, D Mitchell, J Mohr, L Moncelsi, ME Monzani, M Moshed, T Mroczkowski, S Mukherjee, M Münchmeyer, D Nagai, C Nagarajappa, J Nagy, T Namikawa, F Nati, T Natoli, S Nerval, L Newburgh, H Nguyen, E Nichols, A Nicola, MD Niemack, B Nord, T Norton, V Novosad, R O'Brient, Y Omori, G Orlando, B Osherson, R Osten, S Padin, S Paine, B Partridge, S Patil, D Petravick, M Petroff, E Pierpaoli, M Pilleux, L Pogosian, K Prabhu, C Pryke, G Puglisi, B Racine, S Raghunathan, A Rahlin, M Raveri, B Reese, CL Reichardt, M Remazeilles, A Rizzieri, G Rocha, NA Roe, K Rotermund, A Roy, JE Ruhl, J Saba, N Sailer, M Salatino, B Saliwanchik, L Sapozhnikov, MS Rao, L Saunders, E Schaan, A Schillaci, B Schmitt, D Scott, N Sehgal, S Shandera, BD Sherwin, E Shirokoff, C Shiu, SM Simon, B Singari, A Slosar, D Spergel, TS Germaine, ST Staggs, AA Stark, GD Starkman, B Steinbach, R Stompor, C Stoughton, A Suzuki, O Tajima, C Tandoi, GP Teply, G Thayer, K Thompson, B Thorne, P Timbie, M Tomasi, C Trendafilova, M Tristram, C Tucker, G Tucker, C Umiltà, AV Engelen, JV Marrewijk, EM Vavagiakis, C Vergès, JD Vieira, AG Vieregg, K Wagoner, B Wallisch, G Wang, G-J Wang, S Watson, D Watts, C Weaver, L Wenzl, B Westbrook, M White, N Whitehorn, A Wiedlea, P Williams, R Wilson, H Winch, EJ Wollack, WLK Wu, Z Xu, VG Yefremenko, C Yu, D Zegeye, J Zivick, A Zonca
(2022)
Snowmass2021 Cosmic Frontier: Cosmic Microwave Background Measurements White Paper
CL Chang, KM Huffenberger, BA Benson, F Bianchini, J Chluba, J Delabrouille, R Flauger, S Hanany, WC Jones, AJ Kogut, JJ McMahon, J Meyers, N Sehgal, SM Simon, C Umilta, KN Abazajian, Z Ahmed, Y Akrami, AJ Anderson, B Ansarinejad, J Austermann, C Baccigalupi, D Barkats, D Barron, PS Barry, N Battaglia, E Baxter, D Beck, AN Bender, C Bennett, B Beringue, C Bischoff, L Bleem, J Bock, B Bolliet, JR Bond, J Borrill, T Brinckmann, ML Brown, E Calabrese, J Carlstrom, A Challinor, C Chang, Y Chinone, SE Clark, W Coulton, A Cukierman, F-Y Cyr-Racine, SM Duff, C Dvorkin, AV Engelen, J Errard, JR Eskilt, T Essinger-Hileman, G Fabbian, C Feng, S Ferraro, J Filippini, K Freese, N Galitzki, E Gawiser, D Grin, D Grin, E Grohs, A Gruppuso, JE Gudmundsson, NW Halverson, J-C Hamilton, K Harrington, S Henrot-Versillé, B Hensley, JC Hill, AD Hincks, R Hlozek, W Holzapfel, SC Hotinli, H Hui, A Ibitoye, M Johnson, BR Johnson, JH Kang, KS Karkare, L Knox, J Kovac, K Lau, L Legrand, M Loverde, P Lubin, Y-Z Ma, T Mroczkowski, S Mukherjee, M Münchmeyer, D Nagai, J Nagy, M Niemack, V Novosad, Y Omori, G Orlando, Z Pan, L Perotto, MA Petroff, L Pogosian, C Pryke, A Rahlin, M Raveri, CL Reichardt, M Remazeilles, Y Rephaeli, J Ruhl, E Schaan, S Shandera, M Shimon, A Soliman, AA Stark, GD Starkman, R Stompor, RB Thakur, C Trendafilova, M Tristram, P Trivedi, G Tucker, ED Valentino, J Vieira, A Vieregg, G Wang, S Watson, L Wenzl, EJ Wollack, WLK Wu, Z Xu, D Zegeye, C Zhang
(2022)
Simons Observatory: Constraining inflationary gravitational waves with multitracer B -mode delensing
T Namikawa, AB Lizancos, N Robertson, BD Sherwin, A Challinor, D Alonso, S Azzoni, C Baccigalupi, E Calabrese, J Carron, Y Chinone, J Chluba, G Coppi, J Errard, G Fabbian, S Ferraro, A Kalaja, A Lewis, MS Madhavacheril, PD Meerburg, J Meyers, F Nati, G Orlando, D Poletti, G Puglisi, M Remazeilles, N Sehgal, O Tajima, G Teply, A Van Engelen, EJ Wollack, Z Xu, B Yu, N Zhu, A Zonca
– Physical Review D
(2022)
105,
023511
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, J Carron, A Challinor, HC Chiang, J Chluba, LPL Colombo, C Combet, D Contreras, BP Crill, F Cuttaia, P De Bernardis, G De Zotti, J Delabrouille, JM Delouis, E DI Valentino, JM DIego, O Doré, M Douspis, A Ducout, X Dupac, S Dusini, G Efstathiou, F Elsner, TA Enßlin, HK Eriksen, Y Fantaye, M Farhang, J Fergusson, R Fernandez-Cobos, F Finelli, F Forastieri, M Frailis, AA Fraisse, E Franceschi, A Frolov, S Galeotta, S Galli, K Ganga, RT Génova-Santos, M Gerbino, T Ghosh, J González-Nuevo, KM Górski, S Gratton, A Gruppuso, JE Gudmundsson, J Hamann, W Handley, FK Hansen, D Herranz, SR Hildebrandt, E Hivon, Z Huang, AH Jaffe, WC Jones, A Karakci, E Keihänen, R Keskitalo, K Kiiveri, J Kim, TS Kisner, L Knox, N Krachmalnicoff, M Kunz, H Kurki-Suonio, G Lagache, JM Lamarre, A Lasenby, M Lattanzi, CR Lawrence, M Le Jeune, P Lemos, J Lesgourgues, F Levrier, A Lewis, M Liguori
– Astronomy and Astrophysics
(2021)
652,
C4
Limitations of CMB B-mode template delensing
AB Lizancos, A Challinor, J Carron
– Physical Review D
(2021)
103,
023518
Revised estimates of CMB $B$-mode polarization induced by patchy reionization
A Roy, G Kulkarni, P Daniel Meerburg, A Challinor, C Baccigalupi, A Lapi, MG Haehnelt
– Journal of Cosmology and Astroparticle Physics
(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
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, B Casaponsa, A Challinor, HC Chiang, LPL Colombo, C Combet, BP Crill, F Cuttaia, P De Bernardis, A De Rosa, G De Zotti, J Delabrouille, JM Delouis, E Di Valentino, JM Diego, O Doré, M Douspis, A Ducout, X Dupac, S Dusini, G Efstathiou, F Elsner, TA Enßlin, HK Eriksen, Y Fantaye, R Fernandez-Cobos, F Finelli, M Frailis, AA Fraisse, E Franceschi, A Frolov, S Galeotta, S Galli, K Ganga, RT Génova-Santos, M Gerbino, T Ghosh, Y Giraud-Héraud, J González-Nuevo, KM Górski, S Gratton, A Gruppuso, JE Gudmundsson, J Hamann, W Handley, FK Hansen, D Herranz, E Hivon, Z Huang, AH Jaffe, WC Jones, E Keihänen, R Keskitalo, K Kiiveri, J Kim, TS Kisner, N Krachmalnicoff, M Kunz, H Kurki-Suonio, G Lagache, JM Lamarre, A Lasenby, M Lattanzi, CR Lawrence, M Le Jeune, F Levrier, A Lewis, M Liguori, PB Lilje, M Lilley, V Lindholm, M López-Caniego, PM Lubin, YZ Ma, JF Maciás-Pérez, G Maggio
– Astronomy and Astrophysics
(2020)
641,
a5
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Research Group

Relativity and Gravitation

Room

B2.08

Telephone

01223 764341