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

Euclid preparation. VI. Verifying the performance of cosmic shear experiments / Paykari, P.; Kitching, T.; Hoekstra, H.; Azzollini, R.; Cardone, V. F.; Cropper, M.; Duncan, C. A. J.; Kannawadi, A.; Miller, L.; Aussel, H.; Conti, I. F.; Auricchio, N.; Baldi, M.; Bardelli, S.; Biviano, A.; Bonino, D.; Borsato, E.; Bozzo, E.; Branchini, E.; Brau-Nogue, S.; Brescia, M.; Brinchmann, J.; Burigana, C.; Camera, S.; Capobianco, V.; Carbone, C.; Carretero, J.; Castander, F. J.; Castellano, M.; Cavuoti, S.; Charles, Y.; Cledassou, R.; Colodro-Conde, C.; Congedo, G.; Conselice, C.; Conversi, L.; Copin, Y.; Coupon, J.; Courtois, H. M.; da Silva, A.; Dupac, X.; Fabbian, G.; Farrens, S.; Ferreira, P. G.; Fosalba, P.; Fourmanoit, N.; Frailis, M.; Fumana, M.; Galeotta, S.; Garilli, B.; Gillard, W.; Gillis, B. R.; Giocoli, C.; Gracia-Carpio, J.; Grupp, F.; Hormuth, F.; Ilic, S.; Israel, H.; Jahnke, K.; Keihanen, E.; Kermiche, S.; Kilbinger, M.; Kirkpatrick, C. C.; Kubik, B.; Kunz, M.; Kurki-Suonio, H.; Laureijs, R.; Le Mignant, D.; Ligori, S.; Lilje, P. B.; Lloro, I.; Maciaszek, T.; Maiorano, E.; Marggraf, O.; Markovic, K.; Martinet, N.; Marulli, F.; Massey, R.; Mauri, N.; Medinaceli, E.; Mei, S.; Mellier, Y.; Meneghetti, M.; Metcalf, R. B.; Moresco, M.; Moscardini, L.; Munari, E.; Neissner, C.; Nichol, R. C.; Niemi, S.; Nutma, T.; Padilla, C.; Paltani, S.; Pasian, F.; Pettorino, V.; Pires, S.; Polenta, G.; Raison, F.; Renzi, A.; Rhodes, J.; Romelli, E.; Roncarelli, M.; Rossetti, E.; Saglia, R.; Sakr, Z.; Sanchez, A. G.; Sapone, D.; Scaramella, R.; Schneider, P.; Schrabback, T.; Scottez, V.; Secroun, A.; Serrano, S.; Sirignano, C.; Sirri, G.; Stanco, L.; Starck, J. -L.; Sureau, F.; Tallada-Crespi, P.; Taylor, A.; Tenti, M.; Tereno, I.; Toledo-Moreo, R.; Torradeflot, F.; Valenziano, L.; Vannier, M.; Vassallo, T.; Zoubian, J.; Zucca, E.. - In: ASTRONOMY & ASTROPHYSICS. - ISSN 0004-6361. - 635:A139(2020). [10.1051/0004-6361/201936980]

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

Brescia M.;
2020

Abstract

Aims. Our aim is to quantify the impact of systematic effects on the inference of cosmological parameters from cosmic shear. Methods. We present an "end-to-end" approach that introduces sources of bias in a modelled weak lensing survey on a galaxy-by-galaxy level. We propagated residual biases through a pipeline from galaxy properties at one end to cosmic shear power spectra and cosmological parameter estimates at the other end. We did this to quantify how imperfect knowledge of the pipeline changes the maximum likelihood values of dark energy parameters. Results. We quantify the impact of an imperfect correction for charge transfer inefficiency and modelling uncertainties of the point spread function for Euclid, and find that the biases introduced can be corrected to acceptable levels.
2020
Euclid preparation. VI. Verifying the performance of cosmic shear experiments / Paykari, P.; Kitching, T.; Hoekstra, H.; Azzollini, R.; Cardone, V. F.; Cropper, M.; Duncan, C. A. J.; Kannawadi, A.; Miller, L.; Aussel, H.; Conti, I. F.; Auricchio, N.; Baldi, M.; Bardelli, S.; Biviano, A.; Bonino, D.; Borsato, E.; Bozzo, E.; Branchini, E.; Brau-Nogue, S.; Brescia, M.; Brinchmann, J.; Burigana, C.; Camera, S.; Capobianco, V.; Carbone, C.; Carretero, J.; Castander, F. J.; Castellano, M.; Cavuoti, S.; Charles, Y.; Cledassou, R.; Colodro-Conde, C.; Congedo, G.; Conselice, C.; Conversi, L.; Copin, Y.; Coupon, J.; Courtois, H. M.; da Silva, A.; Dupac, X.; Fabbian, G.; Farrens, S.; Ferreira, P. G.; Fosalba, P.; Fourmanoit, N.; Frailis, M.; Fumana, M.; Galeotta, S.; Garilli, B.; Gillard, W.; Gillis, B. R.; Giocoli, C.; Gracia-Carpio, J.; Grupp, F.; Hormuth, F.; Ilic, S.; Israel, H.; Jahnke, K.; Keihanen, E.; Kermiche, S.; Kilbinger, M.; Kirkpatrick, C. C.; Kubik, B.; Kunz, M.; Kurki-Suonio, H.; Laureijs, R.; Le Mignant, D.; Ligori, S.; Lilje, P. B.; Lloro, I.; Maciaszek, T.; Maiorano, E.; Marggraf, O.; Markovic, K.; Martinet, N.; Marulli, F.; Massey, R.; Mauri, N.; Medinaceli, E.; Mei, S.; Mellier, Y.; Meneghetti, M.; Metcalf, R. B.; Moresco, M.; Moscardini, L.; Munari, E.; Neissner, C.; Nichol, R. C.; Niemi, S.; Nutma, T.; Padilla, C.; Paltani, S.; Pasian, F.; Pettorino, V.; Pires, S.; Polenta, G.; Raison, F.; Renzi, A.; Rhodes, J.; Romelli, E.; Roncarelli, M.; Rossetti, E.; Saglia, R.; Sakr, Z.; Sanchez, A. G.; Sapone, D.; Scaramella, R.; Schneider, P.; Schrabback, T.; Scottez, V.; Secroun, A.; Serrano, S.; Sirignano, C.; Sirri, G.; Stanco, L.; Starck, J. -L.; Sureau, F.; Tallada-Crespi, P.; Taylor, A.; Tenti, M.; Tereno, I.; Toledo-Moreo, R.; Torradeflot, F.; Valenziano, L.; Vannier, M.; Vassallo, T.; Zoubian, J.; Zucca, E.. - In: ASTRONOMY & ASTROPHYSICS. - ISSN 0004-6361. - 635:A139(2020). [10.1051/0004-6361/201936980]
File in questo prodotto:
File Dimensione Formato  
140-Paykari-aa36980-19.pdf

accesso aperto

Tipologia: Versione Editoriale (PDF)
Licenza: Copyright dell'editore
Dimensione 1.39 MB
Formato Adobe PDF
1.39 MB Adobe PDF Visualizza/Apri

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/837635
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 11
  • ???jsp.display-item.citation.isi??? 10
social impact