Announcement: Lenstool days 20-21 Oct & Scaling up Lensing Workshop 22-24 Oct 2025

[Guillaume Mahler]

Dear lenstool-ers,

I am delighted to announce two events: The Lenstool days and a lensing workshop, both hosted in Liège/Belgium !

The two events will span a full week with the Lenstool days on the 20-21 of October AND the Scaling up Lensing Workshop on the 22-24 Oct 2025

-------- LENSTOOL DAYS WITHOUT REGISTRATION FEE

The lenstool days:

It is early for this, but I would appreciate an email response if you think you will join for the lenstool-days.

More will follow about the organisation of the lenstool days in due time.

---------- SCALING-UP LENSING WORKSHOP WITH REGISTRATION FEE

Workshop Announcement: Scaling up Lensing - Gravitational Lensing Modelling Techniques in Galaxies and Clusters

Date: October 22nd-24th, 2025 Location: Liège, Belgium Website: https://www.scalingup-lensing.uliege.be/ 

We are pleased to announce an upcoming workshop focused on gravitational lensing modelling techniques in galaxies and clusters, to be held in Liège from October 22nd to 24th, 2025.

About the Workshop

Lens modelling is entering a transformative era, presenting new challenges in accuracy, multi-band multi-instrument combination, automation, and deployment to thousands of lenses. This workshop aims to bring together leading researchers and modellers in the field to address these challenges and maximise the scientific return of upcoming observations.

The event will focus on current and upcoming modelling techniques and algorithms, providing a comprehensive platform for discussing technical improvements, sharing recent results, and fostering collaboration on emerging challenges in lens modelling.

Key Themes

The workshop will cover several critical areas:

Recent Advances in Modelling Exploration of recent work in galaxy- and cluster-scale modelling, including improvements in physical models and multi-wavelength data integration.

Cross-Scale Methodologies Investigation of the intersection between galaxy- and cluster-scale approaches, with particular focus on group-scale modelling as a framework for comparing reconstruction techniques.

Collaborative Lensing Challenge Preparation of a collaborative challenge designed to test and advance techniques in mass distribution reconstruction, very large-sample modelling, source reconstruction, and multi-scale applications.

Infrastructure Optimization Discussion of database infrastructure improvements for lens data ingestion and enhanced usability.

Participation

While hybrid participation will be available, we strongly encourage in-person attendance to facilitate dynamic discussions and meaningful collaborations. The workshop format is designed to promote interactive engagement among participants and foster productive exchanges of ideas and expertise.

Registration and Information

For registration details, program updates, and additional information, please visit our website at https://www.scalingup-lensing.uliege.be/

We look forward to welcoming you to Liège for what promises to be an engaging and productive workshop that will help shape the future of gravitational lensing research.

For questions or additional information, please contact the organising committee at scalingu...@uliege.be or through the workshop website.

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Guillaume Mahler

[Guillaume Mahler]

Dear all,

A kind reminder about the upcoming lenstool days AND upcoming workshop.

The workshop deadline for the abstract is on the 15TH OF AUGUST !

Best regards,

Guillaume

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Guillaume Mahler