Institut de recherche sur les lois fondamentales de l'Univers

Sandrine PIRES 01 69 08 20 41 01 69 08 65 77  sandrine.pirescea.fr Affiliation: IRFU/DEDIP Building 709, Office 63 // Building 123, Office 11A ORCID iD: 0000-0002-0249-2104

Research Interests

Signal and image processing in Astrophysics:

• Astrophysics: Weak Lensing Mass Maps, Clusters of galaxies
• Data analysis: multiscale methods, sparse representation, statistical methods.

I'm involved in the following projects:

• Euclid ESA/NASA international space mission
• XMM-Newton Heritage Program
• Microscope ESA space mission 

CV

• 1995: Science high school degree, Noyon (France)
• 1999: Bachelor's degree in Physics, Université d'Amiens (France)
• 2001: Master's degree in Signal Processing, ENSPM (Ecole Nationale Supérieure de Physique de Marseille, France)
• 2002: DRT degree in Image Processing (Diplome de Recherche Technologique), INPG (Institut National de Physique de Grenoble, France)
• since 2003: Ingineer-researcher, CEA Saclay
• 2006-2008 : PhD in Astrophysics

Software

• Software MRLens: New filtering method for weak lensing reconstruction.
  • For more informations refer to: the MRLens Software page

• Software FASTLens Inpainting method dedicated to weak lensing.
  • For more informations refer to: the FASTLens Software page

• Software K-Inpainting: Inpainting for Kepler.
  • For more informations refer to: the K-Inpainting Software page

• Software ICON: Inpainting for Microscope
  • For more informations refer to: the ICON Software page

Scientific Publications

1. "Fast multiscale galaxy cluster detection with weak lensing: towards a mass-selected sample", G. Leroy, S. Pires, G.W. Pratt, C. Giocoli, A&A, 678, A125, Oct 2023
2. "Euclid preparation. XXX. Evaluating the weak lensing cluster mass biases using the Three Hundred Project hydrodynamical simulations", Euclid Collaboration: C. Giocoli, M. Meneghetti, E. Rasia, S. Borgani, G. Despali, G. F. Lesci, F. Marulli, L. Moscardini, M. Sereno, W. Cui, A. Knebe, G. Yepes, T. Castro, P.-S. Corasaniti, S. Pires, G. Castignani, T. Schrabback, G. W. Pratt, et al., A&A, 681, A67, Jan 2024
3. "Euclid Preparation XXIX: Forecasts for 10 different higher-order weak lensing statistics", Euclid Collaboration: V. Ajani, M. Baldi, A. Barthelemy, A. Boyle, P. Burger, V. F. Cardone, S. Cheng, S. Codis, C. Giocoli, J. Harnois-De?raps, S. Heydenreich, V. Kansal, M. Kilbinger, L. Linke, C. Llinares, N. Martinet, C. Parroni, A. Peel, S. Pires, L. Porth, I. Tereno, C. Uhlemann, M. Vicinanza, S. Vinciguerra et al., A&A, 675, Id. A120, July 2023
4. "Result of the MICROSCOPE weak equivalence principle test", P. Touboul, G. Métris, M. Rodrigues, J. Bergé, A. Robert, Q. Baghi, Y. André, J. Bedouet, D. Boulanger, S. Bremer, P. Carle, R. Chhun, B. Christophe, V. Cipolla, T. Damour, P. Danto, L. Demange, H. Dittus, O. Dhuicque, P. Fayet, B. Foulon, P.-Y. Guidotti, D. Hagedorn, E. Hardy, P.-A. Huynh, P. Kayser, S. Lala, C. Lämmerzahl, V. Lebat, F. Liorzo, M. List, Frank L., I. Panet, M. Pernot-Borràs, L. Perraud, S. Pires, B. Pouilloux, P. Prieur, A. Rebray, S. Reynaud, B. Rievers, H. Selig, L. Serron, T. Sumner, N. Tanguy, P. Torresi, P. Visser, CQG, Volume 39, Issue 20,  id.204009, September 2022
5. "Microscope Mission: Statistics and impact of glitches on the test of the weak equivalence principle", J. Bergé, Q. Baghi, A. Robert, M. Rodrigues, B. Foulon, E. Hardy, G. Métris, S. Pires, P. Touboul, submitted to CQG, 2021, CQG, Volume 39, Issue 20, id.204008 September 2022
6. "Microscope Mission: Data Analysis Principle", J. Bergé, Q. Baghi, E. Hardy, G. Métris, A. Robert, M. Rodrigues, P. Touboul, R. Chhun, P.-Y. Guidotti, S. Pires, S. Reynaud, L. Serron, J.-M. Travert, Classical and Quantum Gravity, Volume 39, Issue 20, id.204007, October 2022
7. "Microscope mission: final results of the test Equivalence Principle", P. Touboul, G. Métris, M. Rodrigues, J. Bergé, A. Robert, Q. Baghi, Y. André, J. Bedouet, D. Boulanger, S. Bremer, P. Carle, R. Chhun, B. Christophe, V. Cipolla, T. Damour, P. Danto, L. Demange, H. Dittus, O. Dhuicque, P. Fayet, B. Foulon, P.-Y. Guidotti, D. Hagedorn, E. Hardy, P.-A. Huynh, P. Kayser, S. Lala, C. Lämmerzahl, V. Lebat, F. Liorzo, M. List, F. Löffler, I. Panet, M. Pernot-Borràs, L. Perraud, S. Pires, B. Pouilloux, P. Prieur, A. Rebray, S. Reynaud, B. Rievers, H. Selig, L. Serron, T. Sumner, N. Tanguy, P. Torresi, P. Visser, CQG, Volume 39, Issue 20,  id.204009, September 2022
8. "The Cluster HEritage project with XMM-Newton: Mass Assembly and Thermodynamics at the Endpoint of structure formation I. Programe overview, The CHEX-MATE Collaboration: M. Arnaud, S. Ettori, G.W. Pratt, M. Rossetti, D. Eckert, F. Gastaldello, R. Gavazzi, S.T. Kay, L. Lovisari, B. J. Maughan, E. Pointecouteau, M. Sereno, I. Bartalucci, A. Bonafede, H. Bourdin, R. Cassano, R.T. Duffy, A. Iqbal, S. Maurogordato, E. Rasia, J. Sayers, F. Andrade-Santos, H. Aussel, D.J. Barnes, R. Barrena, S. Borgani, S. Burkutean, N. Clerc, P.-S. Corasaniti, J.-C. Cuillandre, S. De Grandi, M. De Petris, K. Dolag, M. Donahue, A. Ferragamo, M. Gaspari, S. Ghizzardi, M. Gitti, C.P. Haines, M. Jauzac3, M. Johnston-Hollitt, C. Jones, F. Kéruzoré, A.M.C. LeBrun, F. Mayet, P. Mazzotta, J.-B. Melin, S. Molendi, M. Nonino, N. Okabe, S. Paltani, L. Perotto, S. Pires, M. Radovich, J.-A. Rubino-Martin, L. Salvati, A. Saro, B. Sartoris, G. Schellenberger, A. Streblyanska, P. Tarrío, P. Tozzi, K. Umetsu, R.F.J. van der Burg, F. Vazza, T. Venturi, G. Yepes, S. Zarattini,  Volume 650, id.A104, 25 pp, Juin 2021
9. "Euclid: Reconstruction of Weak Lensing mass maps for non-Gaussianity studies", S. Pires, V. Vandenbussche, V. Kansal, R. Bender, L. Blot, D. Bonino, A. Boucaud, J. Brinchmann, V. Capobianco, J. Carretero, M. Castellano, S. Cavuoti, R. Clédassou, G. Congedo, L. Conversi, L. Corcione, F. Dubath, P. Fosalba, M. Frailis, E. Franceschi, M. Fumana, F. Grupp, F. Hormuth, S. Kermiche, M. Knabenhans, R. Kohley, B. Kubik, M. Kunz, S. Ligori, P.B. Lilje, I. Lloro, E. Maiorano, O. Marggraf, R. Massey, G. Meylan, C. Padilla, S. Paltani, F. Pasian, M. Poncet, D. Potter, F. Raison, J. Rhodes, M. Roncarelli, R. Saglia, P. Schneider, A. Secroun, S. Serrano, J. Stadel, P. Tallada Crespí, I. Tereno, R. Toledo-Moreo, Y. Wang, A&A 638, A141, June 2020
10. "Space test of the Equivalence Principle: first results of the MICROSCOPE mission", P. Touboul, G. Metris, M. Rodrigues, Y. André, Q. Baghi, J. Bergé, D. Boulanger, S. Bremer, R. Chhun, B. Christophe, V. Cipolla, T. Damour, P. Danto, H. Dittus, P. Fayet, B. Foulon, P.-Y. Guidotti, E. Hardy, P.-A. Huynh, C. Lämmerzahl, V. Lebat, F. Liorzou, M. List, I. Panel, S. Pires, B. Pouilloux, P. Prieur, S. Reynaud, B. Rievers, A. Robert, H. Selig, L. Serron, T. Sumner, P. Viesser, CQG,  36, 225006, November 2019 
11. "Dealing with missing data in the MICROSCOPE space mission: An adaptation of inpainting to handle colored-noise data", S. Pires, J. Bergé, Q. Baghi, P. Touboul, G. Métris, Physical Review D,  94, 123015, December 2016
12. "A new model to predict weak-lensing peak counts III. Filtering technique comparisons", C. Lin, M. Kilbinger, S. Pires, A&A 593, A88, September 2016
13. "High Resolution Weak Lensing Mass-Mapping Combining Shear and Flexion", F. Lanusse, J.-L. Starck, A. Leonard, S. Pires, A&A, 591, A2, 12, June 2016
14. "Dealing with missing data: An inpainting application to the MICROSCOPE space mission", J. Bergé, S. Pires, Q. Baghi, P. Touboul, G. Metris, Physical Review D, 92, 11, December 2015
15. "Sparsely Sampling the Sky: Regular vs Random Sampling", P. Paykari, S. Pires, J.-L. Starck, A.H. Jaffe, A&A, 581, A113, 6, September 2015
16. "Gap interpolation by inpainting methods : Application to Ground and Space-based Asteroseismic data", S. Pires, S. Mathur, R.A. Garcia, J. Ballot, D. Stello, K. Sato, A&A, 574, A18, February 2015
17. "Impact on asteroseismic analyses from regular gaps in Kepler data", R.A. Garcia, S. Mathur, S. Pires, C. Régulo, B. Bellamy, P.L. Pallé, J. Ballot, S. Barcelo Forteza, P.G. Beck, T.R. Bedding, T. Ceillier, T. Roca Cortés, D. Salabert, and D. Stello, A&A, 568, A10, 8, August 2014
18. "A PCA-based automated finder for galaxy-scale strong lenses", R. Joseph, F. Courbin, R.B. Metcalf, C. Giocoli, P. Hartley, N. Jackson, F. Bellagamba, J.-P. Kneib, L. Koopmans, G. Lemson, M. Meneghetti, G. Meylan, M. Petkova, S. Pires, A&A, 566, A63, 10, June 2014
19. "Weak lensing Galaxy Cluster Field Reconstruction", E. Jullo, S. Pires, M. Jauzac, J.-P. Kneib, MNRAS, 437, 4, 3969-3979, February 2014
20. "Origins of weak lensing systematics, and requirements on future instrumentation (or knowledge of instrumentation)", R. Massey, H. Hoekstra, T. Kitching, J. Rhodes, M. Cropper, J. Amiaux, D. Harvey, Y. Mellier, M. Meneghetti, L. Miller,  S. Paulin-Henriksson, S. Pires, R. Scaramella and T. Schrabback, MNRAS, 429, 1, 661-678, 2013.
21. "Defining a Weak Lensing Experiment in Space", M. Cropper, H. Hoekstra, T. Kitching, J. Amiaux, R. Massey, L. Miller, Y. Mellier, J. Rhodes, B. Rowe, S. Pires, C. Saxton and R. Scaramella, MNRAS, 431, 4, 3103-3126, 2013.
22. "Fast Calculation of the Weak Lensing Aperture Mass Statistic", A. Leonard, S. Pires, J.-L. Starck, MNRAS, 423, 4, 3405-3412, 2012.
23. "Cosmological constraints from the capture of non-Gaussianity in Weak Lensing data", S. Pires, A. Leonard, J.-L. Starck, MNRAS, 423, 1, 983-992, 2012.
24. "Wavelet Helmholtz decomposition for weak lensing mass map reconstruction", E. Deriaz, S. Pires, J.-L. Starck, A&A, 540, A34, 2012
25. "Towards a fast, model-independent Cosmic Microwave Background bispectrum estimator", S. Pires, S. Plaszczynski and A. Lavabre, Statistical Methodology,  9, 71-84, 2012
26. "Spectral evolution and polarization of variable structures in the pulsar wind nebula of PSR B0540-69.3", N. Lundqvist, P. Lundqvist, C.-I. Björnsson, G. Olofsson, S. Pires, Yu. A. Shibanov and D.A. Zyuzin, MNRAS, 413, 1, 611-627, 2011
27. "Weak Lensning Mass Reconstruction: Flexion vs Shear", S. Pires and A. Amara, ApJ, 723, 2, 1507-1511, 2010
28. "Light on Dark Matter with Weak Gravitational Lensing", S. Pires, J.-L. Starck and A. Réfrégier, IEEE Signal Processing Magazine, 27, 1, 76-85, 2010.
29. " ", S. Pires, J.-L. Starck, A. Amara, A. Réfrégier and R. Teyssier, A&A, 505, 3, 969-979, 2009.
30. "On the contribution of large scale structure to strong gravitational lensing", C. Faure, J.-P. Kneib, S. Hilbert, R. Massey, G. Covone, A. Finoguenov, A. Leauthaud, J.E. Taylor, S. Pires, N. Scoville, Anton M. Koekemoe, ApJ, 695, 2, 1233-1243, 2009.
31. "Handbook for the GREAT08 Challenge: An image analysis competition for cosmological lensing", S. Bridle, J. Shawe-Taylor, A. Amara, D. Applegate, S.-T. Balan, G. Bernstein, J. Berge, H. Dahle, T. Erben, M. Gill, A. Heavens, C. Heymans, W. High, H. Hoekstra, M. Jarvis, T. Kitching, J.-P. Kneib, K. Kuijken, D. Lagattuta, R. Mandelbaum, R. Massey, Y. Mellier, B. Moghaddam, Y. Moudden, R. Nakajima, S. Paulin-Henriksson, S. Pires, A. Rassat, A. Refregier, J. Rhodes, T. Schrabback, E. Semboloni, M. Shmakova, L. van Waerbeke, L. Voigt, D. Wittman, Annals of Applied Statistics, 3, 6-37, 2009.
32. "FASTLENS (FAst STatistics for weak Lensing): Fast method for Weak Lensing Statistics and map making", S. Pires, J.-L. Starck, A. Amara, R. Teyssier, A. Réfrégier and J. Fadili, MNRAS, 395, 3, 1265-1279, 2009.
33. "Full-sky Weak Lensing Simulation with 70 Billions Particles", R. Teyssier, S. Pires, D. Aubert, C. Pichon, S. Prunet, A. Amara, K. Benabed, S. Colombi, A. Réfrégier and J.-L.Starck, A&A, 497, 2, 335-341, 2009.
34. "Dark matter maps reveal cosmic scaffolding", R. Massey, J. Rhodes, R. Ellis, N. Scoville, A. Leathaud, A. Finoguenov, P. Capak, D. Bacon, H. Aussel, J.-P. Kneib, A. Koekemoer, H. McCracken, B. Mobasher, S. Pires, A. Réfrégier, S. Sasaki, ,J.-L. Starck, Y. Taniguchi and J. Taylor, Nature, 445, 7125, 286-290, 2007
35. "Curvelet applications to asteroseismic data", P. Lambert, S. Pires, J. Ballot, R.A. García and J.L. Starck, A&A, 454, 3, 1021-1027, 2006
36. "Sunyaev-Zel'dovich clusters reconstruction in multiband bolometer camera survey", S. Pires, J.B. Juin, D. Yvon, Y. Moudden, S. Anthoine, and E. Pierpaoli, A&A, 455, 2, 741-755, 2006
37. "Weak Lensing Mass Reconstruction using Wavelets", J.-L. Starck, S. Pires, and A. Refregier, A&A, 451, 3, 1139-1150, 2006

Others 

• Scientific communication CEA/DRF, "En chute libre dans le vide", December, 2019
• Chapter in book: "Weak Gravitational Lensing", S. Pires, J.-L. Starck, A. Leonard, and A. Refregier, in Advances in Machine Learning and Data Mining for Astronomy, Chapman and Hall, Edtitors M. Way, J. Scargle, K. Ali, A. Srivastava, March 2012
• Euclid definition study Report (Red Book), Mapping the geometry of the dark Universe", Laureijs, R.; Amiaux, J.; Arduini, S.; Auguères, J. -L.; Brinchmann, J.; Cole, R.; Cropper, M.; Dabin, C.; Duvet, L.; Ealet, A.; Garilli, B.; Gondoin, P.; Guzzo, L.; Hoar, J.; Hoekstra, H.; Holmes, R.; Kitching, T.; Maciaszek, T.; Mellier, Y.; Pasian, F.; Percival, W.; Rhodes, J.; Saavedra Criado, G.; Sauvage, M.; Scaramella, R.; Valenziano, L.; Warren, (Report, Euclid Red Book Editorial Team) S.; Bender, R.; Castander, F.; Cimatti, A.; Le Fèvre, O.; Kurki-Suonio, H.; Levi, M.; Lilje, P.; Meylan, G.; Nichol, R.; Pedersen, K.; Popa, V.; Rebolo Lopez, R.; Rix, H. -W.; Rottgering, H.; Zeilinger (Euclid Consortium Board), W.; Grupp, F.; Hudelot, P.; Massey, R.; Meneghetti, M.; Miller, L.; Paltani, S.; Paulin-Henriksson, S.; Pires, S.; Saxton, C.; Schrabback, T.; Seidel, G.; Walsh (Other Euclid Tiger Team members), et al (165 additional authors), September, 2011
• PhD manuscript:  "Application des méthodes multi-échelles aux effets de lentille gravitationnelle faibles: reconstruction et analyse des cartes de matière noire", S. Pires, Sedi-Sap/CEA Saclay, defended in December 15, 2008.

Conference Organization

Invited talks

• « Euclid: Weak Lensing Mass Maps»,  Laboratoire Astoparticules et Cosmologie, Paris (France), April 12, 2021
• « The Microscope mission: dealing with missing data »,  CEA/IRFU, Saclay (France) November 17, 2020
• « Euclid: Weak Lensing Mass Maps»,  NASA/Goddard Space Flight Center, Greenbelt (USA), July 1-5, 2019
• Journée GdR ISIS « Estimation de données manquantes», Marseille (France), "Les données manquantes en Astrophysique", October 8, 2015
• Conference MissData, Rennes (France), "Missing Data in Astrophysics", June 18-19, 2015
• Mini-workshop on Kepler mission « Signal Processing with Sparse Representations », School of Physics, University of Sydney, Australia, Nov 19-23, 2012
• Conference NDIP (New Developments In Photodetection), Lyon (France), «Image Processing in Astrophysics», July 4-8, 2011
• Workshop PPF-PSI on missing data, « Missing Data Interpolation in Weak Lensing », Toulouse (France), Avril 28, 2009
• « Application of multiscale methods to Weak Lensing: Reconstruction and analysis of Dark Matter mass maps », JPL/Caltech, Pasadena (USA), Feb 25-March 16, 2009
• « FASTLens Fast method for Weak Lensing Statistics and map making »,  Institut Astrophysique de Paris, Paris (France), July 9, 2008
• « Dark Matter mass map Reconstruction and Analysis using sparsity», University Observatory, Munich (Germany), June 17-19, 2008 

Contributions

• Workshop Cosmology with Maps, « Weak Lensing Mass Maps in Euclid», London (UK), February 12, 2016
• Journée GdR ISIS « Estimation de données manquantes», Marseille (France), "Les données manquantes en Atsrophysique", October 8, 2015
• Conference MissData, Rennes (France), "Missing Data in asttrophysics", June 18-19, 2015
• Workshop « Missing Data in Physics »,, Nice (France), "Missing Data in asteroseismology", May 11-12, 2015
• Workshop « Weak Lensing beyond the ordinary», Nice (France), "Optimizing non-Gaussian statistics ", June 3-5, 2013
• Conference, ADA VII (Astronomical Data Analysis), Cargese (France), «Improving Cosmological constraints from non-Gaussianity in Weak Lensing » May 14-18, 2012
• Conference NDIP (New Developments In Photodetection), Lyon (France), « Image processing in Astrophysics », July 4-8, 2011
• Conference, ADA VI (Astronomical Data Analysis), Monastir (Tunisia),  «Cosmological model discrimination from Weak Lensing » , May 3-6 , 2010
• Workshop DEUS (DARK ENERGY UNIVERSE SIMULATIONS), «Cosmological model discrimination with Weak Lensing », December, 4, 2009, IAP, Paris (France)
• Conference Invisible Univers, «Cosmological model discrimination with Weak Lensing » , Paris (France), June 29 - July 3, 2009
• Workshop PPF-PSI on missing data, « Missing data interpolation in Weak Lensing », Toulouse (France), Avril 28, 2009
• Conference, ADA V (Astronomical Data Analysis), Heraklion (Crete), May 7-9 , 2008
• Colloquium Stellar physics and cosmology, « Dark matter maps reconstruction from weak lensing data - Application to COSMOS data- », Paris (France), May, 24-25, 2007
• Conference, ADA IV (Astronomical Data Analysis), Marseille (France), September 18-20 , 2006
• Workshop on Nongaussianity in Cosmology, Miramare-Trieste (Italy), July 24-28, 2006 
• Conference, Les rencontres de Moriond : "Contents and structures of the Universe", La Thuile (Italie), March 18-25, 2006
• Advanced Lectures, "a Pan-Chromatic View of Clusters of Galaxies and the Large-Scale Structure", Instituto Nacional de Astrofísica, Óptica y Electrónica of Puebla (Mexico), June 27- July 8, 2005
• Summer School in Statistics for Astronomers & Physicists, Penn State's University (USA), June 5-17, 2005
•  Workshop "Contenu informatif des images numeriques", ENS Cachan (France), November 25-26, 2004
• Summer School, "Wavelet And Multifractal Analysis", Institut d'Etude Scientifique de Cargese, Corsica, June 19-31, 2004

Teaching and outreach

• Euclid France video to describe the Euclid Science Ground Segment
• Organisation of the Euclid mission stand at Expor'Espace festival, Montrouge (France), November 5-7th, 2021
• MOOC (since 2016) for the doctoral school PHENIICS of Paris-Saclay
  • Representations Parcimonieuses des Données
  • Débruitage par Des Méthodes Parcimonieuses
  • Interpolation des Données Manquantes par des Méthodes Parcimonieuses
• Course on statistical methods, University of Sydney, Australia, November 22, 2012
• ADA7 summer school: Practical works in Signal and Image Processing in Astrophysics (Cargèse, May 7-11, 2012)
  • Sparse representations and filtering
  • Inpainting and Morphological Component Analysis
• Tutorial « Image processing in Astrophysics », Conference NDIP (New Developments In Photodetection), Lyon (France), July 4-8, 2011
• Participation to CEA « journées portes ouvertes » open to the general public, in November 21-22,  2009
• Participation to the « salon de la culture et des jeux mathématiques » open to the general public, in May 28, 2009
• Signal and image processing practical work at Paris XI post MASTER (2005-2012)
• Summer School in Statistics for Astronomers and Physicists in Penn State's University, USA, June 5-17, 2005: Practical works in Spatial Processes and Image Analysis

Scientific and administrative responsabilities