The RENOIR team (Recherche Energie NOIRe) is a research team in cosmology whose goal is to answer the major open questions of modern cosmology. The main objective is to understand the recent acceleration of the expansion of the Universe. This acceleration of expansion is often associated with a mysterious dark energy that represents 70% of the universe's content. The study of dark energy is done by cosmological measurements based on cosmological probes (supernovae Ia, galaxies and cosmic voids).
The team is involved in several major cosmological surveys:
- eBOSS/DESI where the CPPM develops cosmological tests on cosmic voids.
- Euclid, an ESA space mission, where the team is responsible for characterizing the infrared detectors of the NISP spectro-photometer and developing an image simulator of this instrument used to prepare for data processing.
- LSST, a future imager where the CPPM is in charge of the construction of the auto-changer of the filter exchange system and works in parallel with the preparation of supernovæ analyses and photometric calibrations.
Researchers and Research professors
- Marie-Claude Cousinou (eBOSS/DESI)
- Stéphanie Escoffier (scientific responsible Euclid, scientific responsible eBoss/DESI)
- Fabrice Feinstein (LSST)
- Dominique Fouchez (team responsible, scientific responsible LSST)
- William Gillard (Euclid)
- Frédéric Henry-Couannier
- Benjamin Racine (LSST)
- Charling Tao (Euclid)
- André Tilquin (Euclid,LSST)
Chaire of excellence
- Julian Bautista (2021-) (Euclid, LSST ,DESI , ZTF)
Engineers and Technicians
- Kévin Arnaud electronics department (Euclid)
- Dominique Benielli (Euclid)
- Laurence Caillat (Euclid, PA/QA responsible)
- Abdelhadi Kara (Euclid)
- Pierre Karst mechanics department (LSST)
- Smaïn Kermiche IT department (technical responsible SGS Euclid)
- Jean-Philippe Logier mechanics department (Euclid)
- Aurélien Marini (2015-) mechanics department (LSST)
- Mathieu Niclas mechanics department (Euclid, responsible AIV NI-DS)
- Jérôme Royon, electronics department (Euclid)
- Aurélia Secroun, instrumentation department (Euclid, technical responsible DESI)
- Julien Zoubian, IT department (Euclid)
Post-doctoral fellows and CDD
- Elena Sarpa (2022-2024)(Euclid,DESI,ZTF)
- Pauline Vielzeuf (2021-2023) (DESI, Euclid)
- Sylvain Gouyou Beauchamp (2021-2022) (eBOSS, Euclid)
- Philippe Baratta (2021-2022) (Euclid)
To determine the energy content of the Universe and measure its cosmic history, an observational method is to use Baryonic Acoustic Oscillations (BAO) as the standard scale in the spatial distribution of galaxies.
One of the challenges of BAO is the small amplitude of the signal, requiring the survey of huge cosmic volumes in order to obtain an accurate distance measurement. The BOSS survey, for Baryon Oscillation Spectroscopic Survey (Dawson et al. 2013), of SDSS-III (2009-2014) was part of this new generation of galaxy spectroscopic surveys, proposing to map the three-dimensional distribution of 1.5 million Luminous Red Galaxies (LRGs) located between 0.2 < z < 0.8 over a 10 000 deg2 view field. At the same time, BOSS probed the intergalactic medium (IGM) across the 160,000 quasars line of sight located between 2.3 < z < 2.8 using the Lyman-alpha (Ly-alpha) forest. The eBOSS project, for extended-BOSS (Dawson et al. 2016), succeeded BOSS in 2014. The goal of eBOSS, planned for 6 years until 2019, is to cover the entire domain in intermediate redshift, i.e. 0.6 < z < 3.5.
The group has been involved since 2010 in the study of emission line galaxies (ELG) in order to anticipate future surveys of distant galaxies that should cover the almost unexplored range of redshifts z>0.8. In order to improve our understanding of the nature of dark energy, we also participated in the application of a very promising new cosmological test, the Alcock-Paczynski (AP) test (Alcock et al. 1979). In particular we are interested in cosmic voids using the recent works of (Lavaux et al. 2012) who introduced the idea of extracting cosmological information from stacked cosmic voids.
The DESI (Dark Energy Spectroscopic Instrument) project (Aghamousa et al. 2016) consists of an innovative multi-object spectrograph (10 spectrographs with 3 spectral channels each), powered by 5000 optical fibers that can simultaneously produce 5000 galaxy spectra. The instruments will be installed on the 4-meter diameter Mayall telescope located in Arizona, USA, which has been dedicated to this project. In 2014, we obtained funding from AMIDEX (IDEX of Aix-Marseille University) in support of the DESI project in the context of a call for technology transfer. With this support we participate in the construction of the spectrographs that will be delivered to the project.
Euclid is a space mission dedicated to the study of the acceleration of the Universe. Euclid will be launched in 2022 for a period of 6 years to study the large structures of the Universe over more than 15,000 square degrees up to a cosmic time of 10 billion year. The mission is optimized for two cosmological probes, the weak lensing and the galaxy clustering but will also address many other cosmological tests such as cluster measurements.
The CPPM, through the Renoir team, is involved in the preparation of the Euclid mission. The group is involved in the characterization and integration of near-infrared detectors of the NISP spectrophotometer, one of Euclid's two instruments. The H2RG detectors, delivered by NASA, have been characterized at the CPPM and are integrated into the focal plane of the NISP instrument. The CPPM is also in charge of calibrating the instrument before its delivery to ESA (at may 2020).
The second major involvement of the CPPM team concerns the Euclid ground segment (SGS). Ground segment is responsible for data processing and is distributed in the major European countries participating in the project. It is organized around operational units (OU), in charge of defining processing algorithms, and around Data Centers (SDC), in charge of implementing pipelines and producing catalogues. The CPPM is responsible for the development of the TIPS simulator (spectroscopic images of the NISP instrument), as well as its integration into the consortium's pipeline. The CPPM also participates in the production of simulations at the French SDC (CC-IN2P3).
At the science level, we participate in activities of the Galaxy Clustering Science Working Group (GC-SWG), we are leader of the Work-Package (WP) "New Probes", as well as of the SWG on transients/SNe. We are particularly involved in galaxy clustering analyses, cosmic voids, homogeneity scale and probe combination.
LSST is an 8 m ground-based telescope project that will cover the entire sky (20,000 deg²) in several photometric bands selected using colour filters. It will be built nearby the Gemini South (8.2 m) and SOAR (4.3 m) telescopes at the Cerro Pachón site. It is expected to provide its first images in 2020. During the 10 years of its operating phase (2022-2032), LSST will produce at least 10 times more data than the existing one. With one installation every 15 s, about 20 to 30 Terabytes per night are expected, for a total of about 30 Petabytes of data. Each installation covers 10 deg². The data will be reduced in two major mirror computing centers: the National Center for Supercomputing Applications (NCSA) in Illinois and the IN2P3 Computing Center.
The CPPM is responsible for coordinating the construction of the LSST filter changer system and for the construction of one of its subsystems: the auto-changer. Indeed, the camera's filter exchange system is composed of three automated systems: a carousel of 5 optical filters, a filter changer (the Auto Changer) which can, at any time, replace one of the 5 filters in place. The 6th filter can be interchanged in the camera during the day with a filter loading mechanism (the Loader). The system is validated by a test bench to simulate the actual camera configuration.
The team is working on the preparation of supernovæ analyses and photometric calibrations.
We are therefore strongly involved in the use of data reduction software and are working to improve algorithms and procedures for the discovery and photometric measurement of supernovae. We use the expertise acquired in this field with SNLS by using LSST software to reprocess SNLS images and reproduce a more complete Hubble diagram than the one published, not limiting ourselves to supernovae that have benefited from spectroscopic follow up.
The measurement of the Hubble diagram of supernovae is limited, already with current statistics, by systematic errors. In particular, photometric calibration will be a key point. We have therefore started an activity on photometric calibration. We focus on the use of external observations from the Gaia catalogue. We also have an experimental participation in the implementation of the DICE diode calibration project at OHP(obervatoire de haute provence)
2022: 10 articles
- HI constraints from the cross-correlation of eBOSS galaxies and Green Bank Telescope intensity maps, Wolz, Laura et al. , Mon. Not. Roy. Astron. Soc 510 (2022) 3495–3511
- Euclid preparation - XV. Forecasting cosmological constraints for the Euclid and CMB joint analysis, S. Ilić et al. , Euclid Collaboration, Astron. Astrophys. 657 (2022) A91
- Euclid: Forecasts from redshift-space distortions and the Alcock-Paczynski test with cosmic voids, Hamaus, N. et al. , Euclid Collaboration, Astron. Astrophys. (2022)
- Euclid: Constraining ensemble photometric redshift distributions with stacked spectroscopy, Cagliari, M.S. et al. , Euclid Collaboration, Astron. Astrophys. 660 (2022) A9
- On the maximum luminosities of normal stripped-envelope supernovae -- brighter than explosion models allow, J. Sollerman et al. , Astron. Astrophys. 657 (2022) A64
- Angular systematics-free cosmological analysis of galaxy clustering in configuration space, R. Paviot et al. , Mon. Not. Roy. Astron. Soc 512 (2022) 1341-1356
- Euclid: Forecast constraints on consistency tests of the ΛCDM model, S. Nesseris et al. , Euclid Collaboration, Astron. Astrophys. 660 (2022) A67
- Euclid preparation - XVII. Cosmic Dawn Survey: Spitzer Space Telescope observations of the Euclid deep fields and calibration fields, Moneti, Andrea et al. , Euclid Collaboration, Astron. Astrophys. 658 (2022) A126
- Euclid: Covariance of weak lensing pseudo-Cℓ estimates - Calculation, comparison to simulations, and dependence on survey geometry, R. E. Upham et al. , Euclid Collaboration, Astron. Astrophys. 660 (2022) A114
- New horizons for fundamental physics with LISA, K. G. Arun et al. , indéfini 25 (2022) 4
2021: 20 articles
- The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: one thousand multi-tracer mock catalogues with redshift evolution and systematics for galaxies and quasars of the final data release, C. Zhao et al. , Mon. Not. Roy. Astron. Soc 503 (2021) 1149-1173
- The completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: N-body mock challenge for galaxy clustering measurements, G. Rossi et al. , Mon. Not. Roy. Astron. Soc 505 (2021) 377-407
- The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: N-body mock challenge for the eBOSS Emission Line Galaxy sample, S. Alam et al. , Mon. Not. Roy. Astron. Soc 504 (2021) 4667.
- Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Cosmological implications from two decades of spectroscopic surveys at the Apache Point Observatory, S. Alam et al. , Phys. Rev. D 103 (2021) 083533
- Fink, a new generation of broker for the LSST community, A. Möller et al. , Mon. Not. Roy. Astron. Soc 501 (2021) 3272-3288
- Euclid preparation: IX. EuclidEmulator2 – power spectrum emulation with massive neutrinos and self-consistent dark energy perturbations, M. Knabenhans et al. , Euclid Collaboration, Mon. Not. Roy. Astron. Soc 505 (2021) 2840-2869
- Euclid: Impact of non-linear and baryonic feedback prescriptions on cosmological parameter estimation from weak lensing cosmic shear, M. Martinelli et al. , Euclid Collaboration, Astron. Astrophys. 649 (2021) A100
- BICEP/Keck XII: Constraints on axionlike polarization oscillations in the cosmic microwave background, P.A.R. Ade et al. , Phys. Rev. D 103 (2021) 042002
- Euclid: Forecasts for -cut Point Statistics, P. L. Taylor et al. , Euclid Collaboration, The Open Journal of Astrophysics 4 (2021) 6.
- Euclid preparation: XI. Mean redshift determination from galaxy redshift probabilities for cosmic shear tomography, O. Ilbert et al. , Euclid Collaboration, Astron. Astrophys. 647 (2021) A117
- Gravitation and the Universe from large scale-structures: The GAUSS mission concept Mapping the cosmic web up to the reionization era, A. Blanchard et al. , Exper. Astron 51 (2021) 1623-1640
- Euclid: Effect of sample covariance on the number counts of galaxy clusters, A. Fumagalli et al. , Euclid Collaboration, Astron. Astrophys. 652 (2021) A21
- Euclid preparation: XII. Optimizing the photometric sample of the Euclid survey for galaxy clustering and galaxy-galaxy lensing analyses, A. Pocino et al. , Euclid Collaboration, Astron. Astrophys. 655 (2021) A44
- Euclid: Estimation of the Impact of Correlated Readout Noise for Flux Measurements with the Euclid NISP Instrument, A. Jiménez Muñoz et al. , Euclid Collaboration, Publ. Astron. Soc. Pac 133 (2021) 094502
- Euclid preparation: XIII. Forecasts for galaxy morphology with the Euclid Survey using Deep Generative Models, H. Bretonnière et al. , Euclid Collaboration, Astron. Astrophys. (2021)
- The Twins Embedding of Type Ia Supernovae I: The Diversity of Spectra at Maximum Light, K. Boone et al. , Nearby Supernova Factory Collaboration, Astrophys. J 912 (2021) 70
- The Twins Embedding of Type Ia Supernovae II: Improving Cosmological Distance Estimates, K. Boone et al. , Nearby Supernova Factory Collaboration, Astrophys. J 912 (2021) 71
- Euclid: constraining dark energy coupled to electromagnetism using astrophysical and laboratory data, M. Martinelli et al. , Euclid Collaboration, Astron. Astrophys. 654 (2021) A148.
- Euclid Preparation. XIV. The Complete Calibration of the Color–Redshift Relation (C3R2) Survey: Data Release 3, Stanford, S.A. et al. , Euclid Collaboration, Astrophys. J. Suppl. S 256 (2021) 9
- BICEP/Keck XIII: Improved Constraints on Primordial Gravitational Waves using Planck, WMAP, and BICEP/Keck Observations through the 2018 Observing Season, P.A.R. Ade et al. , Phys. Rev. Lett 127 (2021) 151301
2020: 24 articles
- Improving baryon acoustic oscillation measurement with the combination of cosmic voids and galaxies, C. Zhao et al. , SDSS Collaboration, Mon. Not. Roy. Astron. Soc 491 (2020) 4554-4572
- Strong Dependence of Type Ia Supernova Standardization on the Local Specific Star Formation Rate, M. Rigault et al. , Nearby Supernova Factory Collaboration, Astron. Astrophys. 644 (2020) A176
- High-precision Monte-Carlo modelling of galaxy distribution, P. Baratta et al. , Astron. Astrophys. 633 (2020) A26
- Constraints on the growth of structure around cosmic voids in eBOSS DR14, A. J. Hawken et al. , J. Cosmol. Astropart. P 2006 (2020) 012
- SUGAR: An improved empirical model of Type Ia Supernovae based on spectral features, P.-F. Léget et al. , Nearby Supernova Factory Collaboration, Astron. Astrophys. 636 (2020) A46
- Euclid: Reconstruction of Weak Lensing mass maps for non-Gaussianity studies, S. Pires et al. , Euclid Collaboration, Astron. Astrophys. 638 (2020) A141
- Euclid preparation: VI. Verifying the Performance of Cosmic Shear Experiments, P. Paykari et al. , Euclid Collaboration, Astron. Astrophys. 635 (2020) A139
- Euclid preparation: VII. Forecast validation for Euclid cosmological probes, A. Blanchard et al. , Euclid Collaboration, Astron. Astrophys. 642 (2020) A191
- The Sixteenth Data Release of the Sloan Digital Sky Surveys: First Release from the APOGEE-2 Southern Survey and Full Release of eBOSS Spectra, R. Ahumada et al. , SDSS Collaboration, Astrophys. J. Suppl. S 249 (2020) 3
- Euclid: The reduced shear approximation and magnification bias for Stage IV cosmic shear experiments, A. C. Deshpande et al. , Euclid Collaboration, Astron. Astrophys. 636 (2020) A95
- Prospects for Fundamental Physics with LISA, E. Barausse et al. , Gen. Relat. Gravit 52 (2020) 81
- PhotoWeb redshift: boosting photometric redshift accuracy with large spectroscopic surveys, M. Shuntov et al. , Astron. Astrophys. 636 (2020) A90
- Euclid: the selection of quiescent and star-forming galaxies using observed colours, L. Bisigello et al. , Euclid Collaboration, Mon. Not. Roy. Astron. Soc 494 (2020) 2337-2354
- Euclid: The importance of galaxy clustering and weak lensing cross-correlations within the photometric Euclid survey, I. Tutusaus et al. , Euclid Collaboration, Astron. Astrophys. 643 (2020) A70
- Euclid preparation - VIII. The Complete Calibration of the Colour–Redshift Relation survey: VLT/KMOS observations and data release, V. Guglielmo et al. , Euclid Collaboration, Astron. Astrophys. 642 (2020) A192
- The clustering of the SDSS-IV extended Baryon Oscillation Spectroscopic Survey DR16 luminous red galaxy and emission line galaxy samples: cosmic distance and structure growth measurements using multiple tracers in configuration space, Y. Wang et al. , Mon. Not. Roy. Astron. Soc 498 (2020) 3470-3483
- The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Large-scale structure catalogues for cosmological analysis, A. J. Ross et al. , Mon. Not. Roy. Astron. Soc 498 (2020) 2354-2371
- The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: measurement of the BAO and growth rate of structure of the luminous red galaxy sample from the anisotropic power spectrum between redshifts 0.6 and 1.0, H. Gil-Marin et al. , Mon. Not. Roy. Astron. Soc 498 (2020) 2492-2531
- The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Growth rate of structure measurement from anisotropic clustering analysis in configuration space between redshift 0.6 and 1.1 for the Emission Line Galaxy sample, A. Tamone et al. , Mon. Not. Roy. Astron. Soc 499 (2020) 5527-5546
- The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: measurement of the BAO and growth rate of structure of the luminous red galaxy sample from the anisotropic correlation function between redshifts 0.6 and 1, J. E. Bautista et al. , Mon. Not. Roy. Astron. Soc 500 (2020) 736-762
- Euclid: Forecast constraints on the cosmic distance duality relation with complementary external probes, M. Martinelli et al. , Euclid Collaboration, Astron. Astrophys. 644 (2020) A80
- The completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: geometry and growth from the anisotropic void-galaxy correlation function in the luminous red galaxy sample, S. Nadathur et al. , Mon. Not. Roy. Astron. Soc 499 (2020) 4140-4157
- Euclid preparation: X. The Euclid photometric-redshift challenge, G. Desprez et al. , Euclid Collaboration, Astron. Astrophys. 644 (2020) A31
- Euclid: Identification of asteroid streaks in simulated images using StreakDet software, M. Pöntinen et al. , Euclid Collaboration, Astron. Astrophys. 644 (2020) A35
2019: 12 articles
- LSST: from Science Drivers to Reference Design and Anticipated Data Products, Z. Ivezić et al. , Astrophys. J 873 (2019) 111
- Overview of the DESI Legacy Imaging Surveys, A. Dey et al. , DESI Collaboration, Astron. J. 157 (2019) 168
- Multivariate analysis of cosmic void characteristics, M.-C. Cousinou et al. , Astron. Comput. 27 (2019) 53-62
- On a quadratic equation of state and a universe mildly bouncing above the Planck temperature, J. Berteaud et al. , J. Cosmol. Astropart. P 1910 (2019) 069
- Massive Neutrinos Leave Fingerprints on Cosmic Voids, C. D. Kreisch et al. , Mon. Not. Roy. Astron. Soc 488 (2019) 4413-4426
- Exoplanets in the Antarctic Sky. II. 116 Transiting Exoplanet Candidates Found by AST3-II (CHESPA) within the Southern CVZ of TESS, H. Zhang et al. , Astrophys. J. Suppl. S 240 (2019) 17
- The Fifteenth Data Release of the Sloan Digital Sky Surveys: First Release of MaNGA-derived Quantities, Data Visualization Tools, and Stellar Library, D. S. Aguado et al. , SDSS Collaboration, Astrophys. J. Suppl. S 240 (2019) 23
- Exoplanets in the Antarctic Sky. I. The First Data Release of AST3-II (CHESPA) and New Found Variables within the Southern CVZ of TESS, H. Zhang et al. , Astrophys. J. Suppl. S 240 (2019) 16
- PELICAN: deeP architecturE for the LIght Curve ANalysis, J. Pasquet et al. , Astron. Astrophys. 627 (2019) A21
- Testing gravity with galaxy-galaxy lensing and redshift-space distortions using CFHT-Stripe 82, CFHTLenS and BOSS CMASS datasets, E. Jullo et al. , Astron. Astrophys. 627 (2019) A137
- SN 2012dn from early to late times: 09dc-like supernovae reassessed, S. Taubenberger et al. , Mon. Not. Roy. Astron. Soc 488 (2019) 5473-5488
- Euclid preparation - V. Predicted yield of redshift 7 < z < 9 quasars from the wide survey, R. Barnett et al. , Euclid Collaboration, Astron. Astrophys. 631 (2019) A85
2021: 1 conference proceeding
- Galaxy Image Translation with Semi-supervised Noise-reconstructed Generative Adversarial Networks, Q. Lin , D. Fouchez , J. Pasquet, indéfini, 2020 25th International Conference on Pattern Recognition (ICPR) (2021), Milan, Italy, 10-15 Jan 2021
2020: 2 conference proceedings
- Euclid mission status after mission critical design, Laureijs, R., Racca, G., Mellier, Y., Musi, P., Brouard, L., Boenke, T., Venancio, L.Gaspar, Maiorano, E., Short, A., Strada, P., Altieri, B., Buenadicha, G., Dupac, X., Alvarez, P.Gomez, Hoar, J., Kohley, R., Vavrek, R., Rudolph, A., Schmidt, M., Amiaux, J., Aussel, H., Berthé, M., Cropper, M., Cuillandre, J.C., Dabin, C., Dinis, J., Nakajima, R., Maciaszek, T., Scaramella, R., Silva, A. da, Tereno, I., Williams, O.R., Zacchei, A., Azzollini, R., Bernardeau, F., Brinchmann, J., Brockley-Blatt, C., Castander, F., Cimatti, A., Conselice, C., Ealet, A., Fosalba, P., Gillard, W., Guzzo, L., Hoekstra, H., Hudelot, P., Jahnke, K., Kitching, T., Miller, L., Mohr, J., Percival, W., Pettorino, V., Rhodes, J., Sanchez, A., Sauvage, M., Serrano, S., Teyssier, R., Weller, J., Zoubian, J., Proc. SPIE Int. Soc. Opt. Eng., 11443, SPIE Astronomical Telescopes + Instrumentation 2020 (2020) 114430F, Online, United States, 14-18 Dec 2020
- Testing the 10 spectrograph units for DESI: approach and results, S. Perruchot, P.-É. Blanc, J. Guy, L. Le Guillou, S. Ronayette, X. Régal, G. Castagnoli, A. Le Van Suu, E. Sepulveda, E. Jullo, J.-G. Cuby, S. Karkar, P. Ghislain, P. Repain, P. H. Carton, C. Magneville, A. Ealet , S. Escoffier , A. Secroun , K. Honscheid, A. Elliott, P. Jelinsky, B. David, D. Peter, Y. Duan, J. Edelstein, J. C. Estrada, E. Gastañaga, A. Karcher, M. Landriau, M. Levi, P. Martini, N. Palanque-Delabrouille, F. Prada, G. Tarle, K. Zhang, Proc. SPIE Int. Soc. Opt. Eng., 11447, SPIE Astronomical Telescopes + Instrumentation 2020 (2020) 1144786, Online, United States, 14-18 Dec 2020
2021: 1 talk
- Cosmology from spectroscopic galaxy surveys, S. Escoffier , Workshop “Massively Parallel Large Area Spectroscopy from Space”, remote, France, 21-23 Jun 2021
2020: 1 talk
- Cosmology with cosmic voids, S. Escoffier , Theory meeting experiments: particle astrophysics and cosmology (TMEX 2020), Quy Nhon, Vietnam, 5-11 Jan 2020
2019: 1 talk
- A CNN adapted to time series for the classification of Supernovae, A. Brunel, J. Pasquet J. Pasquet, N. Rodriguez, F. Comby, D. Fouchez , M. Chaumont, 2019 IS&T International Symposium on Electronic Imaging, Burlingame, CA, United States, 13-17 Jan 2019
2021: 4 mémoires
A new Monte Carlo method for galaxy clustering analysis, P. Baratta , Aix Marseille Université, 15 Jan 2021
Étude cosmologique de la structure à grande échelle dans le sondage spectroscopique eBOSS, R. Paviot, Aix Marseille Université, 15 Nov 2021
Deep Learning methods applied to large astrophysical imaging surveys, Q. Lin, Aix Marseille Université, 01 Dec 2021
Extraction optimale des paramètres cosmologiques en préparation de la mission Euclid, S. Gouyou Beauchamps, Aix Marseille Université, 15 Dec 2021
2020: 1 mémoire
Contraintes cosmologiques avec les vides cosmiques dans eBOSS, M. Aubert, Aix Marseille Université, 16 Dec 2020
2019: 1 mémoire
Astronomical image processing from large all-sky photometric surveys for the detection and measurement of type Ia supernovae, J. P. Reyes Gomez , Aix Marseille Université, 23 Mai 2019
- LSST: on May 15, 2018, the prototype of the filter changer system, one of the main components of the LSST camera, was inaugurated. This technical feat is the result of collaboration between five CNRS IN2P3 laboratories.In this unique project, France plays a very special role alongside the United States and Chile.
- Euclid: CPPM had just completed the characterization of the 16 flight detectors of the Euclid NISP. Twenty flight detectors, selected by NASA, were delivered to the CPPM, characterized in our clean rooms in 2017-2018. They will be integrated on the NISP instrument in 2019, at LAM (Laboratoire d'Astrophysique de Marseille), with which the CPPM is working closely.