DESC workshop on cosmology with peculiar velocities, Marseille, 22-26/09/2025

Europe/Paris
Description

 

This LSST-DESC funded workshop aims at gathering experts in cosmology with peculiar velocities to discuss main analysis techniques, challenges, and current status of different projects. This workshop is open to all scientists with expertise or interest in the topic of cosmology with peculiar velocities, not limited to those part of LSST-DESC.

We will have both plenary talks and dedicated hack sessions and brainstormings about multiple topics :

  • follow up
  • external datasets
  • simulations
  • blinding
  • systematics
  • modeling / theory

  • ...

 

The workshop will be held 22-26 September 2025, in Marseille, France.

Schedule

  • Meeting will begin at 9:30 am on Monday September 22nd.
  • Meeting ends around 3pm on Friday 25th.
  • From Monday to Wednesday plenaries and parallel sessions with talks and discussions
  • Thursday morning at 9am Damiano Rosselli PhD defense (CPPM amphiteatre)
  • Thursday afternoon close-up session and free time (good time to visit the calanques)
  • Friday: sprint-day, mutiple active parallel sessions for hack or brainstorming: please submit your ideas in the registration form or contact us. 

More detailed timetable in progress. 

Social events

  • Dinner on Tuesday 23th location TBD
  • Calanques hike or football on Thursday 25th afternoon

Information about talks

  • Speakers: please upload your slides on this website prior to your talk.

Remote attendance

  • It will be possible to follow the plenary sessions over Zoom, but we do not guarantee a good connexion for the discussions, parallels and hack sessions.
  • Zoom link for plenary sessions TBD

Code of conduct

DESC Code of Conduct

Venue information

The meeting will take place in the Hexagone on the Luminy Campus. The address is 172 Av. de Luminy, 13009 Marseille, France

  1. From the city center, take the M2 metro to « Rond Point de Prado », take a look at the vélodrome (allez l’OM !).
  2. Take the bus B1 or the express 21-jet (less frequent).
  3. Go down at Luminy Faculté.

 

Accomodation

We won't provide accomodation, please check your favorite website. We recommend either to stay on the path to the venue, or in the center of the city: 
  • around the Vieux Port (many options and lively)
  • around Cours Julien (lively and on the metro line)
  • near Castellane/Baille/Rond-Point du Prado metro stations (quicker access to campus)

Contacts

Please contact the SOC and LOC for specific questions:

SOC: Alex Kim, Bastien Carreres, Benjamin Racine, Julian Bautista

LOC: Benjamin Racine, Bruno Sanchez, Corentin Hanser, Dominique Fouchez, Fabrice Feinstein, Julian Bautista, Rafael Kebadian

Inscription
Registration
    • 09:00 10:00
      Plenary: Introduction
      • 09:00
        Welcome 10m

        Welcome from organizers

      • 09:15
        Introduction to SN Peculiar Velocities 20m

        Invited talk

      • 09:40
        LSST SN PV Data 20m

        Invited talk

    • 10:00 10:10
      Plenary: Our Interests and How to Achieve them
      • 10:00
        Our interests and how to achieve them 10m

        Contributed talks on what SN PV Science people want to do and how to get there.

        Each Block consists of:

        Contributed talks
        Discussion

    • 10:10 11:20
      Plenary: Science Interests (Contributed talks)
    • 11:20 11:40
      Break 20m
    • 11:40 13:00
      Plenary: Science Interests (Contributed Talks)
    • 13:00 14:30
      Lunch 1h 30m
    • 14:30 15:50
      Plenary: Science / Infrastructure Interests (contributed)
    • 15:50 16:10
      Break 20m
    • 16:10 16:30
      Plenary: Science Groups Project Definitions
      • 16:10
        Common Science Themes 20m

        Identify common science themes among participants.

        Each theme has a breakout where goals are defined, projects identified, etc.

        Notionally: fs8; beyond perturbation theory, reconstruction, cross-density, ...

    • 16:30 18:00
      Parallel: Science Group I
      • 16:30
        Break 20m
    • 16:30 18:00
      Parallel: Science Group II
    • 09:00 09:10
      Plenary: Plan for the Day
    • 09:10 10:35
      Plenary: Invited: TBD
    • 10:35 10:55
      Break 20m
    • 10:55 12:25
      Parallel: Science Group III
    • 10:55 12:25
      Parallel: Science Group IV
      • 10:55
        Break 20m
    • 12:25 13:00
      Plenary: Science Group Summary
    • 13:00 14:30
      Lunch 1h 30m
    • 14:30 14:40
      Plenary: Pipelines
      • 14:30
        Pipeline 5m

        Sketch pipelines for online and offline analyses.

        Simulations part of offline.

        Identify projects

    • 14:40 16:20
      Parallel: Analysis: Offline
    • 14:40 16:20
      Parallel: Analysis: Real Time
    • 16:20 16:40
      Break 20m
    • 16:40 17:00
      Plenary: Pipeline Summary
    • 17:00 18:00
      Plenary: Concatenate, Reformuate Projects
    • 09:00 10:00
      Plenary: Invited: Non-Rubin Followup
    • 10:00 11:00
      Plenary: DESC Spectroscopic Follow-up
      • 10:00
        DESC Followup 20m

        Collaboration-wide follow-up

        SN PV group plans

    • 11:00 11:15
      Break 15m
    • 11:15 11:30
      Plenary: Theme III: Roadmap
      • 11:15
        Roadmap 5m

        Two teams to create roadmaps for the projects. One focus on science, the other on infrastructure.

    • 11:30 13:00
      Parallel: Roadmap I
    • 11:30 13:00
      Parallel: Roadmap II
    • 13:00 14:35
      Lunch 1h 35m
    • 14:35 15:40
      Plenary: Final Roadmap what is missing
    • 15:40 16:00
      Break 20m
    • 16:00 18:00
      Plenary: Non-Rubin Surveys
    • 18:00 19:45
      Social: Football
    • 09:00 12:00
      Plenary: Damiano Thesis
    • 12:00 14:00
      Lunch 2h
    • 14:00 15:00
      Plenary: Close session
    • 09:00 13:00
      Parallel: Sprint Session