Skip to main content
Home
Department Of Physics text logo
  • Research
    • Our research
    • Our research groups
    • Our research in action
    • Research funding support
    • Summer internships for undergraduates
  • Study
    • Undergraduates
    • Postgraduates
  • Engage
    • For alumni
    • For business
    • For schools
    • For the public
  • Support
Menu
Black Hole

Lensing of space time around a black hole. At Oxford 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: Fast two-point correlation function covariance through linear construction⋆

Astronomy & Astrophysics EDP Sciences 666 (2022) a129

Authors:

E Keihänen, V Lindholm, P Monaco, L Blot, C Carbone, K Kiiveri, AG Sánchez, A Viitanen, J Valiviita, A Amara, N Auricchio, M Baldi, D Bonino, E Branchini, M Brescia, J Brinchmann, S Camera, V Capobianco, J Carretero, M Castellano, S Cavuoti, A Cimatti, R Cledassou, G Congedo, L Conversi, Y Copin, L Corcione, M Cropper, A Da Silva, H Degaudenzi, M Douspis, F Dubath, CAJ Duncan, X Dupac, S Dusini, A Ealet, S Farrens, S Ferriol, M Frailis, E Franceschi, M Fumana, B Gillis, C Giocoli, A Grazian, F Grupp, L Guzzo, SVH Haugan, H Hoekstra, W Holmes, F Hormuth, K Jahnke, M Kümmel, S Kermiche, A Kiessling, T Kitching, M Kunz, H Kurki-Suonio, S Ligori, PB Lilje, I Lloro, E Maiorano, O Mansutti, O Marggraf, F Marulli, R Massey, M Melchior, M Meneghetti, G Meylan, M Moresco, B Morin, L Moscardini, E Munari, SM Niemi, C Padilla, S Paltani, F Pasian, K Pedersen, V Pettorino, S Pires, G Polenta, M Poncet, L Popa, F Raison, A Renzi, J Rhodes, E Romelli, R Saglia, B Sartoris, P Schneider, T Schrabback, A Secroun, G Seidel, C Sirignano, G Sirri, L Stanco, C Surace, P Tallada-Crespí, D Tavagnacco, AN Taylor, I Tereno, R Toledo-Moreo, F Torradeflot, EA Valentijn, L Valenziano, T Vassallo, Y Wang, J Weller, G Zamorani, J Zoubian, S Andreon, D Maino, S de la Torre
More details from the publisher
More details
More details

Euclid: Searching for pair-instability supernovae with the Deep Survey⋆

Astronomy & Astrophysics EDP Sciences 666 (2022) a157

Authors:

TJ Moriya, C Inserra, M Tanaka, E Cappellaro, M Della Valle, I Hook, R Kotak, G Longo, F Mannucci, S Mattila, C Tao, B Altieri, A Amara, N Auricchio, D Bonino, E Branchini, M Brescia, J Brinchmann, S Camera, V Capobianco, C Carbone, J Carretero, M Castellano, S Cavuoti, A Cimatti, R Cledassou, G Congedo, CJ Conselice, L Conversi, Y Copin, L Corcione, F Courbin, M Cropper, A Da Silva, H Degaudenzi, M Douspis, F Dubath, CAJ Duncan, X Dupac, S Dusini, A Ealet, S Farrens, S Ferriol, M Frailis, E Franceschi, M Fumana, B Garilli, W Gillard, B Gillis, C Giocoli, A Grazian, F Grupp, SVH Haugan, W Holmes, F Hormuth, A Hornstrup, K Jahnke, S Kermiche, A Kiessling, M Kilbinger, T Kitching, H Kurki-Suonio, S Ligori, PB Lilje, I Lloro, E Maiorano, O Mansutti, O Marggraf, K Markovic, F Marulli, R Massey, HJ McCracken, M Melchior, M Meneghetti, G Meylan, M Moresco, L Moscardini, E Munari, SM Niemi, C Padilla, S Paltani, F Pasian, K Pedersen, V Pettorino, M Poncet, L Popa, F Raison, J Rhodes, G Riccio, E Rossetti, R Saglia, B Sartoris, P Schneider, A Secroun, G Seidel, C Sirignano, G Sirri, L Stanco, P Tallada-Crespí, AN Taylor, I Tereno, R Toledo-Moreo, F Torradeflot, Y Wang, G Zamorani, J Zoubian, S Andreon, V Scottez, PW Morris
More details from the publisher
More details

KiDS and Euclid: Cosmological implications of a pseudo angular power spectrum analysis of KiDS-1000 cosmic shear tomography⋆

Astronomy & Astrophysics EDP Sciences 665 (2022) a56

Authors:

A Loureiro, L Whittaker, A Spurio Mancini, B Joachimi, A Cuceu, M Asgari, B Stölzner, T Tröster, AH Wright, M Bilicki, A Dvornik, B Giblin, C Heymans, H Hildebrandt, H Shan, A Amara, N Auricchio, C Bodendorf, D Bonino, E Branchini, M Brescia, V Capobianco, C Carbone, J Carretero, M Castellano, S Cavuoti, A Cimatti, R Cledassou, G Congedo, L Conversi, Y Copin, L Corcione, M Cropper, A Da Silva, M Douspis, F Dubath, CAJ Duncan, X Dupac, S Dusini, S Farrens, S Ferriol, P Fosalba, M Frailis, E Franceschi, M Fumana, B Garilli, B Gillis, C Giocoli, A Grazian, F Grupp, SVH Haugan, W Holmes, F Hormuth, K Jahnke, M Kümmel, S Kermiche, A Kiessling, M Kilbinger, T Kitching, K Kuijken, M Kunz, H Kurki-Suonio, S Ligori, PB Lilje, I Lloro, O Mansutti, O Marggraf, K Markovic, F Marulli, R Massey, M Meneghetti, G Meylan, M Moresco, B Morin, L Moscardini, E Munari, SM Niemi, C Padilla, S Paltani, F Pasian, K Pedersen, V Pettorino, S Pires, M Poncet, L Popa, F Raison, J Rhodes, H Rix, M Roncarelli, R Saglia, P Schneider, A Secroun, S Serrano, C Sirignano, G Sirri, L Stanco, JL Starck, P Tallada-Crespí, AN Taylor, I Tereno, R Toledo-Moreo, F Torradeflot, EA Valentijn, Y Wang, N Welikala, J Weller, G Zamorani, J Zoubian, S Andreon, M Baldi, S Camera, R Farinelli, G Polenta, N Tessore
More details from the publisher
More details
More details

Euclid preparation

Astronomy & Astrophysics EDP Sciences 664 (2022) a196

Authors:

R Saglia, S De Nicola, M Fabricius, V Guglielmo, J Snigula, R Zöller, R Bender, J Heidt, D Masters, D Stern, S Paltani, A Amara, N Auricchio, M Baldi, C Bodendorf, D Bonino, E Branchini, M Brescia, J Brinchmann, S Camera, V Capobianco, C Carbone, J Carretero, M Castellano, S Cavuoti, R Cledassou, G Congedo, CJ Conselice, L Conversi, Y Copin, L Corcione, F Courbin, M Cropper, A Da Silva, H Degaudenzi, M Douspis, F Dubath, CAJ Duncan, X Dupac, S Dusini, S Farrens, M Frailis, E Franceschi, S Galeotta, B Garilli, W Gillard, B Gillis, C Giocoli, A Grazian, F Grupp, SVH Haugan, H Hoekstra, W Holmes, F Hormuth, A Hornstrup, K Jahnke, M Kümmel, S Kermiche, A Kiessling, M Kunz, H Kurki-Suonio, R Laureijs, S Ligori, PB Lilje, I Lloro, E Maiorano, O Marggraf, K Markovic, F Marulli, R Massey, HJ McCracken, M Melchior, G Meylan, M Moresco, L Moscardini, E Munari, SM Niemi, C Padilla, F Pasian, K Pedersen, WJ Percival, V Pettorino, S Pires, M Poncet, L Popa, L Pozzetti, F Raison, A Renzi, J Rhodes, G Riccio, E Romelli, E Rossetti, D Sapone, B Sartoris, P Schneider, A Secroun, G Seidel, C Sirignano, G Sirri, L Stanco, P Tallada-Crespí, D Tavagnacco, AN Taylor, I Tereno, R Toledo-Moreo, F Torradeflot, I Tutusaus, EA Valentijn, L Valenziano, T Vassallo, Y Wang, A Zacchei, G Zamorani, J Zoubian, S Andreon, S Bardelli, J Graciá-Carpio, D Maino, N Mauri, A Tramacere, E Zucca, A Alvarez Ayllon, H Aussel, C Baccigalupi, A Balaguera-Antolínez, M Ballardini, A Biviano, M Bolzonella, E Bozzo, C Burigana, R Cabanac, A Cappi, CS Carvalho, S Casas, G Castignani, A Cooray, J Coupon, HM Courtois, S Davini, G Desprez, H Dole, JA Escartin, S Escoffier, M Farina, S Fotopoulou, K Ganga, J Garcia-Bellido, K George, F Giacomini, G Gozaliasl, H Hildebrandt, I Hook, O Ilbert, V Kansal, A Kashlinsky, E Keihanen, CC Kirkpatrick, A Loureiro, J Macías-Pérez, M Magliocchetti, G Mainetti, R Maoli, M Martinelli, N Martinet, RB Metcalf, G Morgante, S Nadathur, AA Nucita, L Patrizii, V Popa, C Porciani, D Potter, A Pourtsidou, P Reimberg, AG Sánchez, Z Sakr, M Schirmer, E Sefusatti, M Sereno, J Stadel, R Teyssier, C Valieri, J Valiviita, A Veropalumbo, M Viel
More details from the publisher
More details
More details

On cosmological bias due to the magnification of shear and position samples in modern weak lensing analyses

Monthly Notices of the Royal Astronomical Society Oxford University Press 515:1 (2022) 1130-1145

Abstract:

The magnification of galaxies in modern galaxy surveys induces additional correlations in the cosmic shear, galaxy-galaxy lensing and clustering observables used in modern lensing “3x2pt” analyses, due to sample selection. In this paper, we emulate the magnification contribution to all three observables utilising the SLICS simulations suite, and test the sensitivity of the cosmological model, galaxy bias and redshift distribution calibration to un-modelled magnification in a Stage-IV-like survey using Monte-Carlo sampling. We find that magnification cannot be ignored in any single or combined observable, with magnification inducing > 1σ biases in the w0 − σ8 plane, including for cosmic shear and 3x2pt analyses. Significant cosmological biases exist in the 3x2pt and cosmic shear from magnification of the shear sample alone. We show that magnification induces significant biases in the mean of the redshift distribution where a position sample is analysed, which may potentially be used to identify contamination by magnification.
More details from the publisher
Details from ORA

Pagination

  • First page First
  • Previous page Prev
  • …
  • Page 5
  • Page 6
  • Page 7
  • Page 8
  • Current page 9
  • Page 10
  • Page 11
  • Page 12
  • Page 13
  • …
  • Next page Next
  • Last page Last

Footer Menu

  • Contact us
  • Giving to the Dept of Physics
  • Work with us
  • Media

User account menu

  • Log in

Follow us

FIND US

Clarendon Laboratory,

Parks Road,

Oxford,

OX1 3PU

CONTACT US

Tel: +44(0)1865272200

University of Oxfrod logo Department Of Physics text logo
IOP Juno Champion logo Athena Swan Silver Award logo

© University of Oxford - Department of Physics

Cookies | Privacy policy | Accessibility statement

Built by: Versantus

  • Home
  • Research
  • Study
  • Engage
  • Our people
  • News & Comment
  • Events
  • Our facilities & services
  • About us
  • Giving to Physics
  • Current students
  • Staff intranet