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Rubin LSST-France, CPPM Marseille, 10-12/06/2024

10–12 juin 2024
CPPM
Fuseau horaire Europe/Paris

Liste des Contributions

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  1. 19. Welcome!
    Cyrille Doux (LPSC)
    10/06/2024 15:00
  2. 27. EDIM committee
    Dr Gabriele Mainetti (CC-IN2P3), Madeleine Ginolin (IP2I/IN2P3/CNRS), Marina Ricci
    10/06/2024 15:05
  3. 20. News from Rubin and DESC
    Dr Johan Bregeon (IN2P3 LSPC)
    10/06/2024 15:15
  4. 30. Camera and commissioning news
    thibault guillemin (LAPP)
    10/06/2024 15:25
  5. 32. Computing news
    Dominique BOUTIGNY (LAPP), Fabio Hernandez (CC-IN2P3)
    10/06/2024 15:40
  6. 28. LSST-France communication
    Gaelle Shifrin (Centre de Calcul de l'IN2P3)
    10/06/2024 15:55
  7. 21. Lightning talks
    Cyrille Doux (LPSC)
    10/06/2024 16:05
  8. 2. Source photo- and morpho-metry with SourceXtractor++ in Euclid ERO data
    Dr Raphael Gavazzi (LAM CNRS)
    10/06/2024 16:45

    I will present some results from the Euclid Early Release Observations obtained in the field of the lensing cluster A2390 in order to highlight the merits of model photometry and morphometry using SourceXtractor++ code.

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  9. 11. Rubin LSST data access and analysis via the Rubin Science Platform, an overview.
    Dr Gabriele Mainetti (CC-IN2P3)
    10/06/2024 17:10

    In this presentation, we will describe how to access Rubin data using the Rubin Science Platform (RSP). We will cover the general features of the RSP: the notebook aspect for the interactive analysis and the portal aspect to inspect catalogs and images.
    Finally, we will describe the different data accessible through three different instances of the RSP (USDF, CC-IN2P3 and IDF).

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  10. 29. Feedback from LSST-France focal plane commissioning workshop at LAPP, Annecy
    thibault guillemin (LAPP)
    10/06/2024 17:40
  11. 14. Updates from the Fink-broker
    Dr Emille Ishida (CNRS/LPC-Clermont)
    10/06/2024 17:55

    In this talk, I will describe the most recent updates from the Fink broker, describe the recent developments following the Fink-Brazil Workshop and highlight the actions done towards preparing Fink for the arrival of LSST data.

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  12. 8. Search for dark matter halos in the milky way with stellar streams detected by the Rubin/LSST observatory
    Matthieu Pelissier
    10/06/2024 18:15

    Introduction of the French involvement in the DESC official project aiming at connecting observable properties of stellar streams observed with Rubin/LSST to dark matter constraints. Presentation of the analysis preparation examining the impact of dark matter subhalos with masses ranging from $10^6$ to $10^8$ solar masses on simulated stellar streams

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  13. 22. Focal plane
    Jérémy Neveu (LPNHE), thibault guillemin (LAPP)
    11/06/2024 09:30
  14. 24. Euclid/Rubin Derived Data Product Implementation Working Group
    Eric Jullo (LAM)
    11/06/2024 11:15
  15. 25. Flash talks
    Cyrille Doux (LPSC)
    11/06/2024 11:45
  16. 26. Discussion
    Cyrille Doux (LPSC)
    11/06/2024 12:05
  17. 10. A Cohesive Deep Drilling Field Strategy for LSST Cosmology
    Philippe Gris (LPCA)
    11/06/2024 14:00

    This presentation will summarize a work recently achieved in DESC about the design of a cohesive DDF strategy fulfilling requirements from PZ, WL, SNe Ia and accounting for the SCOC recommendations.

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  18. 9. Search for Orphan GRB Afterglows in Rubin LSST data
    Marina Masson (LPSC)
    11/06/2024 14:25

    Orphan gamma-ray burst afterglows are good candidates to learn more about the GRB physics and progenitors or for the development of multi-messenger analysis with gravitational waves. Our objective is to identify orphan afterglows in Rubin LSST data, by using the characteristic features of their light curves. We present here the performance of our machine learning filter as implemented in the...

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  19. 7. The DESC cluster weak lensing mass library v2.0
    Dr Michel Aguena (APC)
    11/06/2024 14:45

    Accurate cluster mass estimates are vital for constraining cosmology with galaxy cluster abundance, one of the primary cosmological probes on LSST. We present here the second version of the Cluster Mass Modeling (CLMM) library, developed for the Dark Energy Science Collaboration (DESC), for calibrating cluster masses based on the weak lensing signal of background galaxies. This library is...

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  20. 18. Effect of Photo-z Performance on Clusters
    Rance Solomon (LAPP)
    11/06/2024 15:05

    Photo-z’s are a key component for some of the current DESC cluster finders, AMICO and WaZP. In this talk we discuss the effect of photo-z performance on WaZP cluster detection using the new TPZ produced photo-z catalog. We also explore the possibility of optimizing the photo-z training set towards “cluster-focused” samples.

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  21. 15. YOLO-CL cluster detection in the Rubin/LSST DC2 simulations
    Kirill Grishin (Universite de Paris)
    11/06/2024 15:25

    Galaxy clusters serve as powerful probes for cosmological models. Upcoming large-scale optical and infrared surveys will reach unprecedented depths across extensive areas, necessitating highly complete and pure cluster catalogs with well-defined selection functions. We have developed a novel cluster detection algorithm called YOLO-CL. This algorithm is a modified version of the...

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  22. 17. The Rubin Galaxies Science Collaboration
    Simona Mei
    11/06/2024 15:45

    We will present the Rubin Galaxies Science Collaboration, show recent activities and results and explain how to apply for membership.

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  23. 34. Science validation and commissioning
    Cyrille Doux (LPSC)
    11/06/2024 16:30
  24. 23. AuxTel
    Dr Sylvie Dagoret (IJCLab), marc moniez (LAL-IN2P3)
    12/06/2024 09:30
  25. 33. Clusters
    Marina Ricci
    12/06/2024 09:30
  26. 4. Surrogate M1M3 dynamic tests
    Andrea JEREMIE (LAPP-CNRS/IN2P3-Univ. de Savoie-Mont-Blanc)
    12/06/2024 11:15

    The M1M3 glass mirror is now on site and has been installed on its cell and coated. Before installing the M1M3 glass mirror on the Rubin telescope, we proceeded to confirm the safety of the glass using a surrogate mirror on the telescope mount, and to verify accordance with specifications. Designed to be used for tests, the surrogate has similar mechanical properties as the glass mirror, such...

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  27. 3. CCOB Narrow Beam EOTest ghosts analysis for alignment
    Dr Johan Bregeon (IN2P3 LSPC)
    12/06/2024 11:30

    I'll present results of the analysis of narrow beam electro-optical tests for the alignment of the camera optics.

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  28. 31. DESC-DESI
    Corentin Ravoux (LPC Clermont-Ferrand CNRS/IN2P3)
    12/06/2024 11:45
  29. 35. Update on the LePHARE photometric redshift code
    olivier Ilbert (LAM)
    12/06/2024 12:05
  30. 1. Stellar Population Synthesis & templates for photometric redshifts
    joseph chevalier (IJCLab - A2C)
    12/06/2024 14:00

    I will present the continuation of our work on photometric redshifts using templates derived from observed spectra, extended using Stellar Population Synthesis methods.
    The prospects of this work - and potential for improvement - for future studies will be presented and discussed during the talk.

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  31. 13. Cosmic Shear Simulations for Higher-Order Statistics
    Juan Mena Fernandez (LPSC)
    12/06/2024 14:20

    Our main goal is to provide with new cosmic shear and LSS simulations that can be used for the analysis of LSST Y1 data with Higher-Order Statistics. In this presentation, we make an update on the status of the project.

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  32. 12. Towards Enabling Automatically Differentiable and distributed Particle-Mesh N-Body simulations
    Wassim KABALAN (CNRS APC/IN2P3)
    12/06/2024 14:40

    A series of recent works has highlighted the potential of so-called full-field cosmological inference for the analysis of upcoming weak lensing and galaxy clustering surveys, with the promise of being able to access the non-gaussian information contained in the data. However, these approaches require a differentiable forward model of the large scale structure, which currently constitutes one...

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  33. 6. DC2 bright stars masks
    Nathan Amouroux
    12/06/2024 15:00

    The presence of bright objects, notably stars, represents a significant challenge in extracting valuable insights from LSST data. Bright objects will cause the saturation of LSST’s sensors and will bias both object detection and flux measurement in a radius which depends on the magnitude. The creation of masks to cover the most affected regions by bright stars is necessary but challenging due...

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  34. 5. Impact of blending on weak lensing measurements with Rubin-LSST
    Manon Ramel (LPSC / IN2P3)

    Upcoming deep optical surveys, such as the Vera C. Rubin Observatory Legacy Survey of Space and Time (LSST), will scan the sky to unprecedented depths, detecting billions of galaxies. However, this amount of detections will lead to the apparent superposition of galaxies in the images, a phenomenon known as blending, that can affect the accurate measurement of individual galaxy properties. In...

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