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91探花
Black Hole

Lensing of space time around a black hole. At 91探花 we study black holes observationally and theoretically on all size and time scales - it is some of our core work.

Credit: ALAIN RIAZUELO, IAP/UPMC/CNRS. CLICK HERE TO VIEW MORE IMAGES.

Christopher Duncan

Visitor

Sub department

  • Astrophysics

Research groups

  • Beecroft Institute for Particle Astrophysics and Cosmology
  • Euclid
christopher.duncan@physics.ox.ac.uk
Telephone: 01865(2)83016
Denys Wilkinson Building, room 555A
  • About
  • Publications

Euclid preparation

Astronomy & Astrophysics EDP Sciences 642 (2020) a191

Authors:

A Blanchard, S Camera, C Carbone, VF Cardone, S Casas, S Clesse, S Ili膰, M Kilbinger, T Kitching, M Kunz, F Lacasa, E Linder, E Majerotto, K Markovi膷, M Martinelli, V Pettorino, A Pourtsidou, Z Sakr, AG S谩nchez, D Sapone, I Tutusaus, S Yahia-Cherif, V Yankelevich, S Andreon, H Aussel, A Balaguera-Antol铆nez, M Baldi, S Bardelli, R Bender, A Biviano, D Bonino, A Boucaud, E Bozzo, E Branchini, S Brau-Nogue, M Brescia, J Brinchmann, C Burigana, R Cabanac, V Capobianco, A Cappi, J Carretero, CS Carvalho, R Casas, FJ Castander, M Castellano, S Cavuoti, A Cimatti, R Cledassou, C Colodro-Conde, G Congedo, CJ Conselice, L Conversi, Y Copin, L Corcione, J Coupon, HM Courtois, M Cropper, A Da Silva, S de la Torre, D Di Ferdinando, F Dubath, F Ducret, CAJ Duncan, X Dupac, S Dusini, G Fabbian, M Fabricius, S Farrens, P Fosalba, S Fotopoulou, N Fourmanoit, M Frailis, E Franceschi, P Franzetti, M Fumana, S Galeotta, W Gillard, B Gillis, C Giocoli, P G贸mez-Alvarez, J Graci谩-Carpio, F Grupp, L Guzzo, H Hoekstra, F Hormuth, H Israel, K Jahnke, E Keihanen, S Kermiche, CC Kirkpatrick, R Kohley, B Kubik, H Kurki-Suonio, S Ligori, PB Lilje, I Lloro, D Maino, E Maiorano, O Marggraf, N Martinet, F Marulli, R Massey, E Medinaceli, S Mei, Y Mellier, B Metcalf, JJ Metge, G Meylan, M Moresco, L Moscardini, E Munari, RC Nichol, S Niemi, AA Nucita, C Padilla, S Paltani, F Pasian, WJ Percival, S Pires, G Polenta, M Poncet, L Pozzetti, GD Racca, F Raison, A Renzi, J Rhodes, E Romelli, M Roncarelli, E Rossetti, R Saglia, P Schneider, V Scottez, A Secroun, G Sirri, L Stanco, J-L Starck, F Sureau, P Tallada-Cresp铆, D Tavagnacco, AN Taylor, M Tenti, I Tereno, R Toledo-Moreo, F Torradeflot, L Valenziano, T Vassallo, GA Verdoes Kleijn, M Viel, Y Wang, A Zacchei, J Zoubian, E Zucca

Euclid preparation: VI. Verifying the performance of cosmic shear experiments

Astronomy and Astrophysics EDP Sciences 635:March 2020 (2020) A139

Authors:

P Paykari, Td Kitching, H Hoekstra, R Azzollini, Vf Cardone, M Cropper, Stephen Duncan, A Kannawadi, Lance Miller, H Aussel, If Conti, N Auricchio, M Baldi, S Bardelli, A Biviano, D Bonino, E Borsato, E Bozzo, E Branchini, S Brau-Nogue, M Brescia, J Brinchmann, C Burigana, S Camera, V Capobianco, C Carbone, J Carretero, Fj Castander, M Castellano, S Cavuoti, Y Charles, R Cledassou, C Colodro-Conde, G Congedo, C Conselice, L Conversi, Y Copin, J Coupon, Hm Courtois, A Da Silva, X Dupac, G Fabbian, S Farrens, Pg Ferreira, P Fosalba, N Fourmanoit, M Frailis, M Fumana, S Galeotta

Abstract:

Our aim is to quantify the impact of systematic effects on the inference of cosmological parameters from cosmic shear. We present an end-to-end approach that introduces sources of bias in a modelled weak lensing survey on a galaxy-by-galaxy level. Residual biases are propagated through a pipeline from galaxy properties (one end) through to cosmic shear power spectra and cosmological parameter estimates (the other end), to quantify how imperfect knowledge of the pipeline changes the maximum likelihood values of dark energy parameters. We quantify the impact of an imperfect correction for charge transfer inefficiency (CTI) and modelling uncertainties of the point spread function (PSF) for Euclid, and find that the biases introduced can be corrected to acceptable levels.

Disentangling magnification in combined shear-clustering analyses

Monthly Notices of the Royal Astronomical Society 91探花 University Press 491:2 (2019) 1756-1758

Authors:

Leander Thiele, Christopher Duncan, David Alonso

Euclid preparation

Astronomy & Astrophysics EDP Sciences 631 (2019) a85

Authors:

R Barnett, SJ Warren, DJ Mortlock, J-G Cuby, C Conselice, PC Hewett, CJ Willott, N Auricchio, A Balaguera-Antol铆nez, M Baldi, S Bardelli, F Bellagamba, R Bender, A Biviano, D Bonino, E Bozzo, E Branchini, M Brescia, J Brinchmann, C Burigana, S Camera, V Capobianco, C Carbone, J Carretero, CS Carvalho, FJ Castander, M Castellano, S Cavuoti, A Cimatti, R Cl茅dassou, G Congedo, L Conversi, Y Copin, L Corcione, J Coupon, HM Courtois, M Cropper, A Da Silva, CAJ Duncan, S Dusini, A Ealet, S Farrens, P Fosalba, S Fotopoulou, N Fourmanoit, M Frailis, M Fumana, S Galeotta, B Garilli, W Gillard, BR Gillis, J Graci谩-Carpio, F Grupp, H Hoekstra, F Hormuth, H Israel, K Jahnke, S Kermiche, M Kilbinger, CC Kirkpatrick, T Kitching, R Kohley, B Kubik, M Kunz, H Kurki-Suonio, R Laureijs, S Ligori, PB Lilje, I Lloro, E Maiorano, O Mansutti, O Marggraf, N Martinet, F Marulli, R Massey, N Mauri, E Medinaceli, S Mei, Y Mellier, RB Metcalf, JJ Metge, G Meylan, M Moresco, L Moscardini, E Munari, C Neissner, SM Niemi, T Nutma, C Padilla, S Paltani, F Pasian, P Paykari, WJ Percival, V Pettorino, G Polenta, M Poncet, L Pozzetti, F Raison, A Renzi, J Rhodes, H-W Rix, E Romelli, M Roncarelli, E Rossetti, R Saglia, D Sapone, R Scaramella, P Schneider, V Scottez, A Secroun, S Serrano, G Sirri, L Stanco, F Sureau, P Tallada-Cresp铆, D Tavagnacco, AN Taylor, M Tenti, I Tereno, R Toledo-Moreo, F Torradeflot, L Valenziano, T Vassallo, Y Wang, A Zacchei, G Zamorani, J Zoubian, E Zucca

CFHTLenS and RCSLenS: testing photometric redshift distributions using angular cross-correlations with spectroscopic galaxy surveys

Monthly Notices of the Royal Astronomical Society 91探花 University Press (OUP) 463:4 (2016) 3737-3754

Authors:

A Choi, C Heymans, C Blake, H Hildebrandt, CAJ Duncan, T Erben, R Nakajima, L Van Waerbeke, M Viola

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